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Xu YP, Fu JC, Hong ZL, Zeng DF, Guo CQ, Li P, Wu JX. Psychological stressors involved in the pathogenesis of premature ovarian insufficiency and potential intervention measures. Gynecol Endocrinol 2024; 40:2360085. [PMID: 38813955 DOI: 10.1080/09513590.2024.2360085] [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: 12/12/2023] [Accepted: 05/14/2024] [Indexed: 05/31/2024] Open
Abstract
Premature ovarian insufficiency (POI) is a common gynecological endocrine disease, which seriously affects women's physical and mental health and fertility, and its incidence is increasing year by year. With the development of social economy and technology, psychological stressors such as anxiety and depression caused by social, life and environmental factors may be one of the risk factors for POI. We used PubMed to search peer-reviewed original English manuscripts published over the last 10 years to identify established and experimental studies on the relationship between various types of stress and decreased ovarian function. Oxidative stress, follicular atresia, and excessive activation of oocytes, caused by Stress-associated factors may be the main causes of ovarian function damage. This article reviews the relationship between psychological stressors and hypoovarian function and the possible early intervention measures in order to provide new ideas for future clinical treatment and intervention.
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Affiliation(s)
- Ying-Pei Xu
- Department of Reproductive Medicine, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fujian Province, China
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Ji-Chun Fu
- Department of Reproductive Medicine, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fujian Province, China
| | - Zhi-Lin Hong
- Clinical Laboratory Center, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
| | - De-Fei Zeng
- Department of Reproductive Medicine, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fujian Province, China
| | - Chao-Qin Guo
- Department of Reproductive Medicine, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fujian Province, China
| | - Ping Li
- Department of Reproductive Medicine, Longyan First Affiliated Hospital of Fujian Medical University, Longyan, Fujian Province, China
| | - Jin-Xiang Wu
- Department of Histology and Embryology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
- Department of Reproductive Medicine, The Second Affiliated Hospital of Fujian Medical University, Quanzhou, Fujian Province, China
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Colominas-Ciuró R, Gray FE, Arikan K, Zahn S, Meier C, Criscuolo F, Bize P. Effects of persistent organic pollutants on telomere dynamics are sex and age-specific in a wild long-lived bird. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 943:173785. [PMID: 38851349 DOI: 10.1016/j.scitotenv.2024.173785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 06/02/2024] [Accepted: 06/03/2024] [Indexed: 06/10/2024]
Abstract
Chemical pollution is a major man-made environmental threat to ecosystems and natural animal populations. Of concern are persistent organic pollutants (POPs), which can persist in the environment for many years. While bioaccumulating throughout the lives of wild animals, POPs can affect their health, reproduction, and survival. However, measuring long-term effects of POPs in wild populations is challenging, and therefore appropriate biomarkers are required in wildlife ecotoxicology. One potential target is telomere length, since telomere preservation has been associated to survival and longevity, and stressors as chemical pollution can disrupt its maintenance. Here, we investigated the effects of different classes of POPs on relative telomere length (RTL) and its rate of change (TROC) in wild long-lived Alpine swifts (Tachymarptis melba). As both RTL and TROC are often reported to differ between sexes and with chronological age, we tested for sex- and age-specific (pre-senescent vs. senescent, ≥ 9 age of years, individuals) effects of POPs. Our results showed that senescent females presented longer RTL and elongated telomeres over time compared to pre-senescent females and males. These sex- and age-related differences in RTL and TROC were influenced by POPs, but differently depending on whether they were organochlorine pesticides (OCPs) or industrial polychlorinated biphenyls (PCBs). OCPs (particularly drins) were negatively associated with RTL, with the strongest negative effects being found in senescent females. Conversely, PCBs led to slower rates of telomere shortening, especially in females. Our study indicates diametrically opposed effects of OCPs on RTL and PCBs on TROC, and these effects were more pronounced in females and senescent individuals. The mechanisms behind these effects (e.g., increased oxidative stress by OCPs; upregulation of telomerase activity by PCBs) remain unknown. Our results highlight the importance in wildlife ecotoxicology to account for sex- and age-related effects when investigating the health effects of pollutants on biomarkers such as telomeres.
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Affiliation(s)
| | | | - Kalender Arikan
- Department of Biology Education, Faculty of Education, Hacettepe University, Turkey
| | - Sandrine Zahn
- Université de Strasbourg, CNRS, IPHC UMR 7178, France
| | | | | | - Pierre Bize
- Swiss Ornithological Institute, Switzerland.
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Pan C, Wang X, Fan Z, Mao W, Shi Y, Wu Y, Liu T, Xu Z, Wang H, Chen H. Polystyrene microplastics facilitate renal fibrosis through accelerating tubular epithelial cell senescence. Food Chem Toxicol 2024; 191:114888. [PMID: 39053876 DOI: 10.1016/j.fct.2024.114888] [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: 11/20/2023] [Revised: 07/18/2024] [Accepted: 07/22/2024] [Indexed: 07/27/2024]
Abstract
Microplastics (MPs), emerging contaminants, are easily transported and enriched in the kidney, suggesting the kidney is susceptible to the toxicity of MPs. In this study, we explored the toxicity of MPs, including unmodified polystyrene (PS), negative-charged PS-SO3H, and positive-charged PS-NH2 MPs, in mice models for 28 days at a human equivalent concentration. The results showed MPs significantly increased levels of UREA, urea nitrogen (BUN), creatinine (CREA), and uric acid (UA) levels in serum and white blood cells, protein, and microalbumin in urine. In the kidney, MPs triggered persistent inflammation and renal fibrosis, which was caused by the increased senescence of tubular epithelial cells. Moreover, we identified the critical role of the Klotho/Wnt/β-catenin signaling pathway in the process of MPs induced senescence of tubular epithelial cells, promoting the epithelial-mesenchymal transformation of epithelial cells. MPs supported the secretion of TGF-β1 by senescent epithelial cells and induced the activation of renal fibroblasts. On the contrary, restoring the function of Klotho can alleviate the senescence of epithelial cells and reverse the activation of fibroblasts. Thus, our study revealed new evidence between MPs and renal fibrosis, and adds an important piece to the whole picture of the plastic pollution on people's health.
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Affiliation(s)
- Chun Pan
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Xinglong Wang
- Department of Orthopedics, The Fifth People's Hospital of Huai'an, Huai'an, China
| | - Zhencheng Fan
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Wenwen Mao
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Yujie Shi
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Yin Wu
- Department of Orthopedics, Affiliated Hospital of Yangzhou University, Yangzhou, China; Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Tingting Liu
- Department of Orthopedics, Affiliated Hospital of Yangzhou University, Yangzhou, China
| | - Zhuobin Xu
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Huihui Wang
- Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou, China
| | - Hao Chen
- Department of Orthopedics, Affiliated Hospital of Yangzhou University, Yangzhou, China.
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Zeng W, Liang Y, Huang S, Zhang J, Mai C, He B, Shi L, Liu B, Li W, Huang X, Li X. Ciprofloxacin Accelerates Angiotensin-II-Induced Vascular Smooth Muscle Cells Senescence Through Modulating AMPK/ROS pathway in Aortic Aneurysm and Dissection. Cardiovasc Toxicol 2024; 24:889-903. [PMID: 39138741 PMCID: PMC11335803 DOI: 10.1007/s12012-024-09892-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 07/03/2024] [Indexed: 08/15/2024]
Abstract
Aortic aneurysm and dissection (AAD) is a cardiovascular disease that poses a severe threat to life and has high morbidity and mortality rates. Clinical and animal-based studies have irrefutably shown that fluoroquinolones, a commonly prescribed antibiotic for treating infections, significantly increase the risk of AAD. Despite this, the precise mechanism by which fluoroquinolones cause AAD remains unclear. Therefore, this study aims to investigate the molecular mechanism and role of Ciprofloxacin definitively-a type of fluoroquinolone antibiotic-in the progression of AAD. Aortic transcriptome data were collected from GEO datasets to detect the genes and pathways expressed differently between healthy donors and AAD patients. Human primary Vascular Smooth Muscle Cells (VSMCs) were isolated from the aorta. After 72 h of exposure to 110ug/ml Ciprofloxacin or 100 nmol/L AngII, either or combined, the senescent cells were identified through SA-β-gal staining. MitoTracker staining was used to examine the morphology of mitochondria in each group. Cellular Reactive Oxygen Species (ROS) levels were measured using MitoSox and DCFH-DA staining. Western blot assay was performed to detect the protein expression level. We conducted an analysis of transcriptome data from both healthy donors and patients with AAD and found that there were significant changes in cellular senescence-related signaling pathways in the latter group. We then isolated and identified human primary VSMCs from healthy donors (control-VSMCs) and patients' (AAD-VSMCs) aortic tissue, respectively. We found that VSMCs from patients exhibited senescent phenotype as compared to control-VSMCs. The higher levels of p21 and p16 and elevated SA-β-gal activity demonstrated this. We also found that pretreatment with Ciprofloxacin promoted angiotensin-II-induced cellular senescence in control-VSMCs. This was evidenced by increased SA-β-gal activity, decreased cell proliferation, and elevation of p21 and p16 protein levels. Additionally, we found that Angiotensin-II (AngII) induced VSMC senescence by promoting ROS generation. We used DCFH-DA and mitoSOX staining to identify that Ciprofloxacin and AngII pretreatment further elevated ROS levels than the vehicle or alone group. Furthermore, JC-1 staining showed that mitochondrial membrane potential significantly declined in the Ciprofloxacin and AngII combination group compared to others. Compared to the other three groups, pretreatment of Ciprofloxacin plus AngII could further induce mitochondrial fission, demonstrated by mitoTracker staining and western blotting assay. Mechanistically, we found that Ciprofloxacin impaired the balance of mitochondrial fission and fusion dynamics in VSMCs by suppressing the phosphorylation of AMPK signaling. This caused mitochondrial dysfunction and ROS generation, thereby elevating AngII-induced cellular senescence. However, treatment with the AMPK activator partially alleviated those effects. Our data indicate that Ciprofloxacin may accelerate AngII-induced VSMC senescence through modulating AMPK/ROS signaling and, subsequently, hasten the progression of AAD.
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MESH Headings
- Humans
- Cellular Senescence/drug effects
- Muscle, Smooth, Vascular/drug effects
- Muscle, Smooth, Vascular/pathology
- Muscle, Smooth, Vascular/metabolism
- Muscle, Smooth, Vascular/enzymology
- Aortic Dissection/chemically induced
- Aortic Dissection/pathology
- Aortic Dissection/enzymology
- Aortic Dissection/metabolism
- Signal Transduction/drug effects
- Reactive Oxygen Species/metabolism
- Myocytes, Smooth Muscle/drug effects
- Myocytes, Smooth Muscle/pathology
- Myocytes, Smooth Muscle/enzymology
- Myocytes, Smooth Muscle/metabolism
- Angiotensin II/toxicity
- Cells, Cultured
- Ciprofloxacin/pharmacology
- AMP-Activated Protein Kinases/metabolism
- Case-Control Studies
- Aortic Aneurysm/chemically induced
- Aortic Aneurysm/pathology
- Aortic Aneurysm/metabolism
- Aortic Aneurysm/enzymology
- Male
- Middle Aged
- Oxidative Stress/drug effects
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Affiliation(s)
- Weiyue Zeng
- School of Medicine, South China University of Technology, Guangzhou, China
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Yaowen Liang
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
- Shantou University Medical College, Shantou, China
| | - Shangjun Huang
- School of Medicine, South China University of Technology, Guangzhou, China
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Jiarui Zhang
- School of Medicine, South China University of Technology, Guangzhou, China
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Cong Mai
- School of Medicine, South China University of Technology, Guangzhou, China
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Binbin He
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Linli Shi
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Baojuan Liu
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China
| | - Weifeng Li
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China.
| | - Xiaoran Huang
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China.
| | - Xin Li
- School of Medicine, South China University of Technology, Guangzhou, China.
- Department of Emergency Medicine, China-Algeria Joint Laboratory On Emergeney Medicine, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Southern Medical University, Guangzhou, China.
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Wei X, Zhou Y, Shao E, Shi X, Han Y, Zhang Y, Wei G, Zheng H, Huang S, Chen Y, Sun J, Liao Y, Liao W, Wang Y, Bin J, Li X. Tert promotes cardiac regenerative repair after MI through alleviating ROS-induced DNA damage response in cardiomyocyte. Cell Death Discov 2024; 10:381. [PMID: 39187478 DOI: 10.1038/s41420-024-02135-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2024] [Revised: 07/28/2024] [Accepted: 08/06/2024] [Indexed: 08/28/2024] Open
Abstract
Telomerase reverse transcriptase (Tert) has been found to have a protective effect on telomeric DNA, but whether it could improve the repair of reactive oxygen species (ROS)-induced DNA damage and promote myocardial regenerative repair after myocardial infarction (MI) by protecting telomeric DNA is unclear. The immunofluorescence staining with TEL-CY3 and the TeloTAGGG Telomerase PCR ELISA kit were used to show the telomere length and telomerase activity. The heart-specific Tert-deletion homozygotes were generated by using commercial Cre tool mice and flox heterozygous mice for mating. We measured the telomere length and telomerase activity of mouse cardiomyocytes (CMs) at different days of age, and the results showed that they were negatively correlated with age. Overexpressed Tert could enhance telomerase activity and lengthen telomeres, thereby repairing the DNA damage induced by ROS and promoting CM proliferation in vitro. The in vivo results indicated that enhanced Tert could significantly improve cardiac function and prognosis by alleviating CM DNA damage and promoting angiogenesis post-MI. In terms of mechanism, DNA pulldown assay was used to identify that nuclear ribonucleoprotein A2B1 (hnRNPA2B1) could be an upstream regulator of Tert in CMs. Overexpressed Tert could activate the NF-κB signaling pathway in CMs and bind to the VEGF promoter in the endothelium to increase the VEGF level. Further immunoblotting showed that Tert protected DNA from ROS-induced damage by inhibiting ATM phosphorylation and blocking the Chk1/p53/p21 pathway activation. HnRNPA2B1-activated Tert could repair the ROS-induced telomeric DNA damage to induce the cell cycle re-entry in CMs and enhance the interaction between CMs and endothelium, thus achieving cardiac regenerative repair after MI.
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Affiliation(s)
- Xiaomin Wei
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Cardiovascular Center, the Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Yilin Zhou
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Enge Shao
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Xiaoran Shi
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Yuan Han
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Yeshen Zhang
- Department of Cardiology, Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, China
| | - Guoquan Wei
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Hao Zheng
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Senlin Huang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Yanmei Chen
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Jie Sun
- Department of Cardiology, Zhongshan City People's Hospital, Zhongshan, China
| | - Yulin Liao
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China
- Cardiovascular Center, the Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan, China
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China
| | - Wangjun Liao
- Cardiovascular Center, the Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan, China
- Department of Oncology, the Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan, China
| | - Yanbing Wang
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China.
| | - Jianping Bin
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China.
- Cardiovascular Center, the Sixth Affiliated Hospital, School of Medicine, South China University of Technology, Foshan, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China.
| | - Xinzhong Li
- Department of Cardiology, State Key Laboratory of Organ Failure Research, Nanfang Hospital, Southern Medical University, Guangzhou, China.
- Guangdong Provincial Key Laboratory of Cardiac Function and Microcirculation, Guangzhou, China.
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Jin Z, Liu X, Guo H, Chen S, Zhu X, Pan S, Wu Y. Sex-specific modulating role of social support in the associations between oxidative stress, inflammation, and telomere length in older adults. J Behav Med 2024:10.1007/s10865-024-00515-0. [PMID: 39179728 DOI: 10.1007/s10865-024-00515-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Accepted: 08/08/2024] [Indexed: 08/26/2024]
Abstract
Telomere length, a biomarker of human aging, is related to adverse health outcomes. Growing evidence indicates that oxidative stress and inflammation contributes to telomere shortening, whereas social support may protect from telomere shortening. Despite sex differences in telomere length and social support, little is known about whether there are sex differences in the relationship between oxidative stress/inflammation and telomere length, and sex-specific moderating roles of social support in older adults. Using data from the National Health and Nutrition Examination Survey (NHANES) 1999-2002, this study assessed whether the associations between oxidative stress/inflammation and telomere length vary with sex and explored social support as a moderator in these associations among 2289 older adults. Oxidative stress was measured based on serum Gamma-glutamyl transferase (GGT), and inflammation was measured based on C-reactive protein (CRP). After adjusting for the covariates, GGT was significantly associated with telomere length in females only (β = - 0.037, 95% CI = - 0.070, - 0.005), while CRP was associated with telomere length in males only (β = - 0.019, 95% CI = - 0.035, - 0.002). Moreover, high social support mitigated the negative association between GGT and telomere length, which was more evident in females. Furthermore, social support moderated the association between CRP and telomere length in males aged 70 and above. Our findings indicated that biological mechanisms related to telomere length may vary with sex, while social support plays a sex-specific moderating role.
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Affiliation(s)
- Zhou Jin
- Zhejiang Provincial Clinical Research Center for Mental Disorders, Wenzhou Key Laboratory of Basic and Translational Research for Mental Disorders, School of Mental Health and The Affiliated Wenzhou Kangning Hospital, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Xuejian Liu
- Zhejiang Provincial Clinical Research Center for Mental Disorders, Wenzhou Key Laboratory of Basic and Translational Research for Mental Disorders, School of Mental Health and The Affiliated Wenzhou Kangning Hospital, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Haonan Guo
- Department of Sociology, Faculty of Social Science, University of Macau, Avenida da Universidade, Taipa, Macau, China
| | - Sixuan Chen
- Zhejiang Provincial Clinical Research Center for Mental Disorders, Wenzhou Key Laboratory of Basic and Translational Research for Mental Disorders, School of Mental Health and The Affiliated Wenzhou Kangning Hospital, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Xianghe Zhu
- Zhejiang Provincial Clinical Research Center for Mental Disorders, Wenzhou Key Laboratory of Basic and Translational Research for Mental Disorders, School of Mental Health and The Affiliated Wenzhou Kangning Hospital, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China
| | - Sipei Pan
- Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yili Wu
- Zhejiang Provincial Clinical Research Center for Mental Disorders, Wenzhou Key Laboratory of Basic and Translational Research for Mental Disorders, School of Mental Health and The Affiliated Wenzhou Kangning Hospital, Key Laboratory of Alzheimer's Disease of Zhejiang Province, Institute of Aging, Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine, Vision and Brain Health), Wenzhou Medical University, Wenzhou, 325000, Zhejiang, China.
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Huang W, Han G, Taylor BD, Neal G, Kochan K, Page RL. Maternal peripheral blood telomere length and preterm birth in African American women: a pilot study. Arch Gynecol Obstet 2024:10.1007/s00404-024-07681-1. [PMID: 39141123 DOI: 10.1007/s00404-024-07681-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2024] [Accepted: 07/30/2024] [Indexed: 08/15/2024]
Abstract
PURPOSE This study aimed to explore the association between preterm birth and telomere length of maternal peripheral blood in African American women. METHODS 78 African American women were recruited for this study between 2018 and 2023 from 2 prenatal clinics in central and east Texas. Participants provided blood samples and completed clinic questionnaires, with clinical data collected from their post-delivery medical records. Telomere length was measured using monochrome multiplex quantitative real-time polymerase chain reaction. Linear regression and multinomial logistic regression were used to analyze the association between telomere length and gestational length. Kruskal-Wallis's test and Fisher's exact test were used to compare preterm birth, early-term birth and full-term birth by telomere length, social-demographic characteristics, stress and discrimination. RESULTS The rates of preterm birth was higher in pregnant women with shorter telomeres. After adjusting for confounders, for every 10-units increase in the relative telomere-to-single-copy gene (T/S) ratio, gestational days increased by 1.090 days (90% CI 0.182, 1.997), and for every 10-units decrease in the T/S ratio, the odds of preterm birth was 2.664 (90% CI 1.064, 6.673) times greater than the odds of full-term birth. No statistically significant associations were observed between stress, discrimination, and either preterm birth or telomere length. CONCLUSIONS Maternal peripheral blood telomere shortening is associated with preterm birth, providing support to further explore the clinical utility of maternal telomere testing for prediction and early intervention of preterm birth and the study of biological mechanisms of spontaneous preterm birth.
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Affiliation(s)
- Weiyi Huang
- Department of Epidemiology and Biostatistics, Texas A &M University, College Station, TX, USA
| | - Gang Han
- Department of Epidemiology and Biostatistics, Texas A &M University, College Station, TX, USA
| | - Brandie DePaoli Taylor
- Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, University of Texas Medical Branch, Galveston, TX, USA
| | - Gabriel Neal
- Department of Primary Care and Rural Medicine, Texas A &M School of Medicine, Bryan, TX, USA
| | - Kelli Kochan
- Institute for Genome Science and Society, Texas A &M University, College Station, TX, USA
| | - Robin L Page
- School of Nursing, Texas A &M University, College Station, TX, USA.
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8
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Virseda-Berdices A, Behar-Lagares R, Martínez-González O, Blancas R, Bueno-Bustos S, Brochado-Kith O, Manteiga E, Mallol Poyato MJ, López Matamala B, Martín Parra C, Resino S, Jiménez-Sousa MÁ, Fernández-Rodríguez A. Longer ICU stay and invasive mechanical ventilation accelerate telomere shortening in COVID-19 patients 1 year after recovery. Crit Care 2024; 28:267. [PMID: 39113075 PMCID: PMC11308640 DOI: 10.1186/s13054-024-05051-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2024] [Accepted: 08/01/2024] [Indexed: 08/10/2024] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes virus-induced-senescence. There is an association between shorter telomere length (TL) in coronavirus disease 2019 (COVID-19) patients and hospitalization, severity, or even death. However, it remains unknown whether virus-induced-senescence is reversible. We aim to evaluate the dynamics of TL in COVID-19 patients 1 year after recovery from intensive care units (ICU). Longitudinal study enrolling 49 patients admitted to ICU due to COVID-19 (August 2020 to April 2021). Relative telomere length (RTL) quantification was carried out in whole blood by monochromatic multiplex real-time quantitative PCR (MMqPCR) assay at hospitalization (baseline) and 1 year after discharge (1-year visit). The association between RTL and ICU length of stay (LOS), invasive mechanical ventilation (IMV), prone position, and pulmonary fibrosis development at 1-year visit was evaluated. The median age was 60 years, 71.4% were males, median ICU-LOS was 12 days, 73.5% required IMV, and 38.8% required a prone position. Patients with longer ICU-LOS or who required IMV showed greater RTL shortening during follow-up. Patients who required pronation had a greater RTL shortening during follow-up. IMV patients who developed pulmonary fibrosis showed greater RTL reduction and shorter RTL at the 1-year visit. Patients with longer ICU-LOS and those who required IMV had a shorter RTL in peripheral blood, as observed 1 year after hospital discharge. Additionally, patients who required IMV and developed pulmonary fibrosis had greater telomere shortening, showing shorter telomeres at the 1-year visit. These patients may be more prone to develop cellular senescence and lung-related complications; therefore, closer monitoring may be needed.
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Affiliation(s)
- Ana Virseda-Berdices
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Raquel Behar-Lagares
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain
| | - Oscar Martínez-González
- Critical Care Department, Hospital Universitario del Tajo, Aranjuez, Spain.
- Department of Medicine, Alfonso X el Sabio University, Villanueva de la Cañada, Madrid, Spain.
| | - Rafael Blancas
- Critical Care Department, Hospital Universitario del Tajo, Aranjuez, Spain
- Department of Medicine, Alfonso X el Sabio University, Villanueva de la Cañada, Madrid, Spain
| | - Soraya Bueno-Bustos
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain
| | - Oscar Brochado-Kith
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - Eva Manteiga
- Critical Care Department, Hospital Universitario Infanta Cristina, Parla, Madrid, Spain
| | | | | | | | - Salvador Resino
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
| | - María Á Jiménez-Sousa
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain.
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain.
| | - Amanda Fernández-Rodríguez
- Unit of Viral Infection and Immunity, National Center for Microbiology (CNM), Health Institute Carlos III (ISCIII), Majadahonda, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Infecciosas (CIBERINFEC), Instituto de Salud Carlos III, Madrid, Spain
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9
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Păcularu-Burada B, Cîrîc AI, Begea M. Anti-Aging Effects of Flavonoids from Plant Extracts. Foods 2024; 13:2441. [PMID: 39123632 PMCID: PMC11311508 DOI: 10.3390/foods13152441] [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: 07/04/2024] [Revised: 07/25/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Aging is a natural and irreversible process, affecting living organisms by negatively impacting the tissues' and cells' morphology and functionality and consequently being responsible for aging-related diseases. Taking into account the actual preoccupations of both consumers and researchers, healthy anti-aging alternatives are being intensively studied in order to address such concerns. Due to their functional features, plant flavonoids can be considered valuable nutraceuticals. This paper highlights the possibilities to use flavonoids extracted from various plants for their anti-aging potential on the skin, brain, and heart. Moreover, their anticarcinogenic, anti-inflammatory, and anti-diabetic properties are summarized, along with the senescence-associated mechanisms. Both the nutraceutical and cosmeceutical fields are continuously developing and flavonoids originating from plants are promising candidates to obtain such products. Thus, the bioactive compounds' extraction and their subsequent involvement in innovative product manufacturing must be carefully performed while being aware of the various intrinsic and extrinsic factors that may affect the phytochemicals' structures, bioavailability, and health effects.
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Affiliation(s)
- Bogdan Păcularu-Burada
- ICA Research & Development S.R.L., 202 Splaiul Independenței, 060021 Bucharest, Romania;
- Dan Voiculescu Foundation for the Development of Romania, 011885 Bucharest, Romania
| | - Alexandru-Ionuț Cîrîc
- Faculty of Biotechnical Systems Engineering, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independenței, 060042 Bucharest, Romania;
| | - Mihaela Begea
- Faculty of Biotechnical Systems Engineering, National University of Science and Technology Politehnica Bucharest, 313 Splaiul Independenței, 060042 Bucharest, Romania;
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10
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Chang-Chien J, Kuo ML, Tseng YL, Huang HY, Tsai HJ, Yao TC. Differential effects of long- and short-term exposure to PM 2.5 on accelerating telomere shortening: from in vitro to epidemiological studies. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 281:116650. [PMID: 38964064 DOI: 10.1016/j.ecoenv.2024.116650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 06/24/2024] [Accepted: 06/25/2024] [Indexed: 07/06/2024]
Abstract
Exposure to air pollutants has been associated with DNA damage and increases the risks of respiratory diseases, such as asthma and COPD; however short- and long-term effects of air pollutants on telomere dysfunction remain unclear. We investigated the impact of short- and long-term exposure to fine particulate matter with an aerodynamic diameter below 2.5 μm (PM2.5) on telomere length in human bronchial epithelial BEAS-2B cells, and assessed the potential correlation between PM2.5 exposure and telomere length in the LIGHTS childhood cohort study. We observed that long-term, but not short-term, PM2.5 exposure was significantly associated with telomere shortening, along with the downregulation of human telomerase reverse transcriptase (hTERT) mRNA and protein levels. Moreover, long-term exposure to PM2.5 induced proinflammatory cytokine secretion, notably interleukin 6 (IL-6) and IL-8, triggered subG1 cell cycle arrest, and ultimately caused cell death. Long-term exposure to PM2.5 upregulated the LC3-II/ LC3-I ratio but led to p62 protein accumulation in BEAS-2B cells, suggesting a blockade of autophagic flux. Moreover, consistent with our in vitro findings, our epidemiological study found significant association between annual average exposure to higher PM2.5 and shortening of leukocyte telomere length in children. However, no significant association between 7-day short-term exposure to PM2.5 and leukocyte telomere length was observed in children. By combining in vitro experimental and epidemiological studies, our findings provide supportive evidence linking potential regulatory mechanisms to population level with respect to long-term PM2.5 exposure to telomere shortening in humans.
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Affiliation(s)
- Ju Chang-Chien
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Medicine, Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Ming-Ling Kuo
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Department of Microbiology and Immunology, Graduate Institute of Biomedical Sciences, College of Medicine, Chang Gung University, Taoyuan, Taiwan; Department of Pediatrics, New Taipei Municipal TuCheng Hospital, New Taipei, Taiwan
| | - Yu-Lung Tseng
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Hsin-Yi Huang
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan; Institute of Environmental and Occupational Health Sciences, National Yang Ming Chiao Tung University, Taiwan
| | - Hui-Ju Tsai
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan; College of Life Sciences and Medicine, National Tsing Hua University, Hsinchu, Taiwan.
| | - Tsung-Chieh Yao
- Division of Allergy, Asthma, and Rheumatology, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan; School of Medicine, Chang Gung University College of Medicine, Taoyuan, Taiwan; Community Medicine Research Center, Chang Gung Memorial Hospital at Keelung, Keelung, Taiwan.
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11
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Simm A, Großkopf A, Fuellen G. Detailing the biomedical aspects of geroscience by molecular data and large-scale "deep" bioinformatics analyses. Z Gerontol Geriatr 2024; 57:355-360. [PMID: 39088048 DOI: 10.1007/s00391-024-02329-w] [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: 05/10/2024] [Accepted: 06/17/2024] [Indexed: 08/02/2024]
Abstract
As scientists investigated the molecular mechanisms of the biology of aging, they discovered that these are malleable and can enhance healthy longevity by intervening in the drivers of aging, which are leading to disease, dysfunction and death. These exciting observations gave birth to the field of geroscience. As the mechanisms of aging affect almost all mechanisms of life, detailed molecular mechanistic knowledge must be gained or expanded by considering and integrating as many types of data as possible, from genes and transcripts to socioenvironmental factors. Such a large-scale integration of large amounts of data will in turn profit from "deep" bioinformatics analyses that provide insights beyond contextualizing and interpreting the data in the light of knowledge from databases such as the Gene Ontology. The authors suggest that "deep" bioinformatics, employing methods based on artificial intelligence, will be a key ingredient of future analyses.
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Affiliation(s)
- Andreas Simm
- Clinic for Cardiac Surgery, University Medicine of the Martin-Luther-University Halle-Wittenberg, Ernst-Grube Str. 40, 06120, Halle (Saale), Germany.
| | - Anne Großkopf
- Clinic for Cardiac Surgery, University Medicine of the Martin-Luther-University Halle-Wittenberg, Ernst-Grube Str. 40, 06120, Halle (Saale), Germany
| | - Georg Fuellen
- Institute for Biostatistics and Informatics in Medicine and Ageing Research -- IBIMA, Rostock University Medical Center, Ernst-Heydemann-Str. 8, 18057, Rostock, Germany.
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12
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He Z, Wang Z, Lu L, Wang X, Guo G. Enhanced recognition of G-quadruplex DNA oxidative damage based on DNA-mediated charge transfer. Bioelectrochemistry 2024; 158:108714. [PMID: 38653106 DOI: 10.1016/j.bioelechem.2024.108714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 04/15/2024] [Accepted: 04/20/2024] [Indexed: 04/25/2024]
Abstract
G-quadruplex (G4) DNA is present in human telomere oligonucleotide sequences. Oxidative damage to telomeric DNA accelerates telomere shortening, which is strongly associated with aging and cancer. Most of the current analyses on oxidative DNA damage are based on ds-DNA. Here, we developed a electrochemiluminescence (ECL) probe for enhanced recognition of oxidative damage in G4-DNA based on DNA-mediated charge transfer (CT), which could specifically recognize damaged sites depending on the position of 8-oxoguanine (8-oxoG). First, a uniform G4-DNA monolayer interface was fabricated; the G4-DNA mediated CT properties were examined using an iridium(III) complex [Ir(ppy)2(pip)]PF6 stacked with G4-DNA as an indicator. The results showed that G4-DNA with 8-oxoG attenuated DNA CT. The topological effects of oxidative damage at different sites of G4-DNA and their effects on DNA CT were revealed. The sensing platform was also used for the sensitive and quantitative detection of 8-oxoG in G4-DNA, with a detection limit of 28.9 fmol. Overall, these findings present a sensitive platform to study G4-DNA structural and stability changes caused by oxidative damage as well as the specific and quantitative detection of oxidation sites. The different damage sites in the G-quadruplex could provide detailed clues for understanding the function of G4-associated telomere functional enzymes.
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Affiliation(s)
- Zhangjin He
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, PR China
| | - Ziqi Wang
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, PR China
| | - Liping Lu
- Key Laboratory of Beijing on Regional Air Pollution Control, Department of Environmental Science, Beijing University of Technology, Beijing 100124, PR China; Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, PR China.
| | - Xiayan Wang
- Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, PR China
| | - Guangsheng Guo
- Center of Excellence for Environmental Safety and Biological Effects, Beijing University of Technology, Beijing 100124, PR China
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13
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Chen X, Ren Q, Wu F, Zhu K, Tao J, Zhang A. Exposure to four typical heavy metals induced telomere shortening of peripheral blood mononuclear cells in relevant with declined urinary aMT6s in rats. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 283:116791. [PMID: 39068742 DOI: 10.1016/j.ecoenv.2024.116791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Revised: 07/20/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
Environmental heavy metals pollution have seriously threatened the health of human beings. An increasing number of researches have demonstrated that environmental heavy metals can influence the telomere length of Peripheral Blood Mononuclear Cells (PBMCs), which implicate biological aging as well as predicts diseases. Our previous study has shown that methylmercury (MeHg)-induced telomere shortening in rat brain tissue was associated with urinary melatonin metabolite 6-sulfatoxymelatonin (aMT6s) levels. Here, we aimed to further elucidate the impact of 4 typical heavy metals (As, Hg, Cd and Pb) on telomere length of PBMCs and their association with urinary aMT6s in rats. In this study, eighty-eight male Sprague-Dawley rats were randomized grouped into eleven groups. Among them, forty 3-month-old (young) and forty 12-month-old (middle-aged) rats were divided into young or middle-aged control groups as well as typical heavy metals exposed groups, respectively. Eight 24-month-old rats (old) was divided into aging control group. The results showed that MeHg exposure in young rats while sodium arsenite (iAs), MeHg, cadmium chloride (CdCl2), lead acetate (PbAc) exposure in middle-aged rats for 3 months significantly reduced the levels of and urinary aMT6s, as well as telomere length of PBMCs. In addition, they also induced abnormalities in serum oxidative stress (SOD, MDA and GPx) and inflammatory (IL-1β, IL-6 and TNF-α) indicators. Notably, there was a significant positive correlation between declined level of urinary aMT6s and the shortening of telomere length in PBMCs in rats exposed to 4 typical heavy metals. These results suggested that 4 typical heavy metals exposure could accelerate the reduction of telomere length of PBMCs partially by inducing oxidative stress and inflammatory in rats, while ageing may be an important synergistic factor. Urinary aMT6s detection may be a alternative method to reflect telomere toxic effects induced by heavy metal exposure.
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Affiliation(s)
- Xiong Chen
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Department of Toxicology, Guizhou Medical University, Guian New Area, Guizhou 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guian New Area, Guizhou 561113, China.
| | - Qian Ren
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Department of Toxicology, Guizhou Medical University, Guian New Area, Guizhou 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guian New Area, Guizhou 561113, China
| | - Fan Wu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Department of Toxicology, Guizhou Medical University, Guian New Area, Guizhou 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guian New Area, Guizhou 561113, China
| | - Kai Zhu
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Department of Toxicology, Guizhou Medical University, Guian New Area, Guizhou 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guian New Area, Guizhou 561113, China
| | - Junyan Tao
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Department of Toxicology, Guizhou Medical University, Guian New Area, Guizhou 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guian New Area, Guizhou 561113, China
| | - Aihua Zhang
- The Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, School of Public Health, Department of Toxicology, Guizhou Medical University, Guian New Area, Guizhou 561113, China; Collaborative Innovation Center for Prevention and Control of Endemic and Ethnic Regional Diseases Co-constructed by the Province and Ministry, Guizhou Medical University, Guian New Area, Guizhou 561113, China.
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14
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Obeagu EI, Obeagu GU. Telomere Dynamics in Sickle Cell Anemia: Unraveling Molecular Aging and Disease Progression. J Blood Med 2024; 15:313-323. [PMID: 39081620 PMCID: PMC11288316 DOI: 10.2147/jbm.s462758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 07/23/2024] [Indexed: 08/02/2024] Open
Abstract
Sickle Cell Anemia (SCA) is a hereditary blood disorder characterized by the presence of abnormal hemoglobin, leading to the formation of sickle-shaped red blood cells. While extensive research has unraveled many aspects of the genetic and molecular basis of SCA, the role of telomere dynamics in disease progression remains a relatively unexplored frontier. This review seeks to provide a comprehensive examination of telomere biology within the context of SCA, aiming to elucidate its potential impact on molecular aging and the progression of the disease. The impact of oxidative stress on telomere dynamics in SCA is explored, with a particular focus on how increased reactive oxygen species (ROS) may contribute to accelerated telomere shortening and genomic instability. Furthermore, the potential relationship between telomere dysfunction and cellular senescence in SCA is investigated, shedding light on how telomere dynamics may contribute to the premature aging of cells in this population. The review concludes by summarizing key findings and proposing potential therapeutic strategies targeting telomere dynamics to mitigate disease progression in SCA. It also identifies gaps in current understanding and suggests avenues for future research, emphasizing the importance of further investigating telomere biology to advance our understanding of molecular aging and disease progression in Sickle Cell Anemia. This comprehensive exploration of telomere dynamics in SCA offers insights into potential mechanisms of molecular aging and disease progression, paving the way for targeted therapeutic interventions and improved disease management.
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15
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Han MH, Kwon HS, Hwang M, Park HH, Jeong JH, Park KW, Kim EJ, Yoon SJ, Yoon B, Jang JW, Hong JY, Choi SH, Koh SH. Association between osteoporosis and the rate of telomere shortening. Aging (Albany NY) 2024; 16:11151-11161. [PMID: 39074257 PMCID: PMC11315396 DOI: 10.18632/aging.206034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Accepted: 07/17/2024] [Indexed: 07/31/2024]
Abstract
A shorter leukocyte telomere length (LTL) is reported to be associated with age-related diseases, including osteoporosis. Many studies have tried identifying the association between LTL and osteoporosis, although it remains controversial. This study aimed to determine whether osteoporosis is independently associated with LTL shortening in a prospective longitudinal cohort. The KBASE study is an independent multicenter prospective cohort in South Korea, which began in 2014. We compared the LTL values for each participant at baseline and over a 2-year follow-up period. Boxplots were used to demonstrate the differences in the change in LTL over a 2-year follow-up according to osteoporosis. Multivariable linear regression was conducted to identify whether osteoporosis is independently associated with the rate of telomere shortening. A total of 233 subjects (from 55 to 88 years) from the KBASE cohort were finally enrolled in the study. We observed that the LTL decreased by approximately 1.2 kbp over 2 years. While the LTL decreased as age increased, the rate of LTL shortening did not increase with age. Multivariable linear regression analysis indicated that only osteoporosis was independently associated with rapid LTL shortening over 2 years (B, -8.08; p = 0.038). We sought to identify an association between osteoporosis and LTL shortening in an independent prospective cohort. We found that participants with osteoporosis had significantly faster LTL shortening over 2 years than those without osteoporosis. We hope this study will help elucidate the underlying mechanisms in the relationship between LTL and osteoporosis in the future.
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Affiliation(s)
- Myung-Hoon Han
- Department of Neurosurgery, Hanyang University Guri Hospital, Guri 11923, South Korea
| | - Hyuk Sung Kwon
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, South Korea
| | - Mina Hwang
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, South Korea
| | - Hyun-Hee Park
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, South Korea
| | - Jee Hyang Jeong
- Department of Neurology, Ewha Womans University College of Medicine, Seoul 07804, South Korea
| | - Kyung Won Park
- Department of Neurology, Dong-A Medical Center, Dong-A University College of Medicine, Busan 49201, South Korea
| | - Eun-Joo Kim
- Department of Neurology, Pusan National University Hospital, Pusan National University School of Medicine and Medical Research Institute, Busan 49241, South Korea
| | - Soo Jin Yoon
- Department of Neurology, Eulji University Hospital, Eulji University School of Medicine, Daejeon 35233, South Korea
| | - Bora Yoon
- Department of Neurology, Konyang University College of Medicine, Daejeon 35365, Republic of Korea
| | - Jae-Won Jang
- Department of Neurology, Kangwon National University School of Medicine, Chuncheon 24341, South Korea
| | - Jin Yong Hong
- Department of Neurology, Yonsei University Wonju College of Medicine, Wonju 26426, South Korea
| | - Seong Hye Choi
- Department of Neurology, Inha University College of Medicine, Incheon 22332, South Korea
| | - Seong-Ho Koh
- Department of Neurology, Hanyang University Guri Hospital, Guri 11923, South Korea
- Department of Translational Medicine, Hanyang University Graduate School of Biomedical Science and Engineering, Seoul 04763, South Korea
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16
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Campisi M, Cannella L, Bordin A, Moretto A, Scapellato ML, Mason P, Liviero F, Pavanello S. Revealing the Hidden Impacts: Insights into Biological Aging and Long-Term Effects in Pauci- and Asymptomatic COVID-19 Healthcare Workers. Int J Mol Sci 2024; 25:8056. [PMID: 39125624 PMCID: PMC11311509 DOI: 10.3390/ijms25158056] [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: 07/02/2024] [Revised: 07/16/2024] [Accepted: 07/19/2024] [Indexed: 08/12/2024] Open
Abstract
This study explores the role of inflammation and oxidative stress, hallmarks of COVID-19, in accelerating cellular biological aging. We investigated early molecular markers-DNA methylation age (DNAmAge) and telomere length (TL)-in blood leukocytes, nasal cells (NCs), and induced sputum (IS) one year post-infection in pauci- and asymptomatic healthcare workers (HCWs) infected during the first pandemic wave (February-May 2020), compared to COPD patients, model for "aged lung". Data from questionnaires, Work Ability Index (WAI), blood analyses, autonomic cardiac balance assessments, heart rate variability (HRV), and pulmonary function tests were collected. Elevated leukocyte DNAmAge significantly correlated with advancing age, male sex, daytime work, and an aged phenotype characterized by chronic diseases, elevated LDL and glycemia levels, medications affecting HRV, and declines in lung function, WAI, lymphocyte count, hemoglobin levels, and HRV (p < 0.05). Increasing age, LDL levels, job positions involving intensive patient contact, and higher leukocyte counts collectively contributed to shortened leukocyte TL (p < 0.05). Notably, HCWs exhibited accelerated biological aging in IS cells compared to both blood leukocytes (p ≤ 0.05) and NCs (p < 0.001) and were biologically older than COPD patients (p < 0.05). These findings suggest the need to monitor aging in pauci- and asymptomatic COVID-19 survivors, who represent the majority of the general population.
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Affiliation(s)
- Manuela Campisi
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
| | - Luana Cannella
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
| | - Anna Bordin
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
- Occupational Medicine, University Hospital of Padua, 35128 Padua, Italy
| | - Angelo Moretto
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
- Occupational Medicine, University Hospital of Padua, 35128 Padua, Italy
| | - Maria Luisa Scapellato
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
- Occupational Medicine, University Hospital of Padua, 35128 Padua, Italy
| | - Paola Mason
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
- Occupational Medicine, University Hospital of Padua, 35128 Padua, Italy
| | - Filippo Liviero
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
- Occupational Medicine, University Hospital of Padua, 35128 Padua, Italy
| | - Sofia Pavanello
- Department of Cardiac-, -Thoracic-, Vascular Sciences and Public Health, University of Padua, 35128 Padua, Italy; (M.C.); (L.C.); (A.B.); (A.M.); (M.L.S.); (P.M.); (F.L.)
- Occupational Medicine, University Hospital of Padua, 35128 Padua, Italy
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Boccardi V, Cari L, Bastiani P, Scamosci M, Cecchetti R, Nocentini G, Mecocci P. Aberrant telomeric structures and serum markers of telomere dysfunction in healthy aging: a preliminary study. Biogerontology 2024:10.1007/s10522-024-10120-y. [PMID: 39001954 DOI: 10.1007/s10522-024-10120-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Accepted: 07/06/2024] [Indexed: 07/15/2024]
Abstract
Telomeres undergo a progressive shortening process as individuals age, and it has been proposed that severely shortened and dysfunctional telomeres play a role in the aging process and the onset of age-related diseases in human beings. An emerging body of evidence indicates that the shortening of telomeres in cultured human cells is also influenced by other replication defects occurring within telomeric repeats. These abnormalities can be detected on metaphase chromosomes. Recent studies have also identified a set of serological markers for telomere dysfunction and DNA damage (elongation factor 1α [EF-1α], stathmin, and N-acetyl-glucosaminidase). With this study, the correlation between telomere abnormalities (by FISH) and these biomarkers as measured in blood serum (by ELISA) from a cohort of 22 healthy subjects at different ages (range 26-101 years) was analyzed. A strong positive correlation between aging and the presence of aberrant telomere structures, sister telomere loss (STL), and sister telomere chromatid fusions (STCF) was detected. When serum markers of telomere dysfunction were correlated with telomere abnormalities, we found that stathmin correlated with total aberrant telomeres structures (r = 0.431, p = 0.0453) and STCF (r = 0.533, p = 0.0107). These findings suggest that serum stathmin can be considered an easy-to-get marker of telomere dysfunction and may serve as valuable indicators of aging.
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Affiliation(s)
- Virginia Boccardi
- Division of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Santa Maria Della Misericordia Hospital, Perugia, Italy.
- Department of Medicine and Surgery, Institute of Gerontology and Geriatrics, University of Perugia, Piazzale Gambuli 1, 06132, Perugia, Italy.
| | - Luigi Cari
- Department of Medicine and Surgery, Section of Pharmacology, University of Perugia, Perugia, Italy
| | - Patrizia Bastiani
- Division of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Santa Maria Della Misericordia Hospital, Perugia, Italy
| | - Michela Scamosci
- Division of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Santa Maria Della Misericordia Hospital, Perugia, Italy
| | - Roberta Cecchetti
- Division of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Santa Maria Della Misericordia Hospital, Perugia, Italy
| | - Giuseppe Nocentini
- Department of Medicine and Surgery, Section of Pharmacology, University of Perugia, Perugia, Italy
| | - Patrizia Mecocci
- Division of Gerontology and Geriatrics, Department of Medicine and Surgery, University of Perugia, Santa Maria Della Misericordia Hospital, Perugia, Italy
- Division of Clinical Geriatrics, NVS Department, Karolinska Institutet, Stockholm, Sweden
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18
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Wang K, Wu J, Deng M, Nie J, Tao F, Li Q, Luo X, Xia F. Associations of oxidative balance score with hyperuricemia and gout among American adults: a population-based study. Front Endocrinol (Lausanne) 2024; 15:1354704. [PMID: 38988995 PMCID: PMC11233537 DOI: 10.3389/fendo.2024.1354704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Accepted: 05/31/2024] [Indexed: 07/12/2024] Open
Abstract
Objective The current study aimed to assess the relationships between oxidative balance score (OBS) and OBS subclasses (dietary and lifestyle OBS) with risks of hyperuricemia (HUA) and gout among American adults. Methods Participants in the National Health and Nutrition Examination Survey from 2007 to 2018 were initially recruited and then the final sample was restricted to adults without missing values about serum uric acid, gout, OBS, and covariates. Rao-Scott adjusted chi-square test and analysis of variance were utilized to compare the baseline characteristics in adults of different quartiles of OBS, while the weighted stepped logistic regression models were used to explore the associations of overall, dietary, and lifestyle OBS with the risks of HUA and gout. Weighted restricted cubic spline analyses were conducted to explore the nonlinear dose-response associations. Results The final sample consisted of 22,705 participants aged 20 years and older, which was representative of approximately 197.3 million non-institutionalized American adults. HUA and gout prevalence decreased with OBS quartiles. Compared with adults in the first quartile of OBS, those in the second (OR: 0.85, 95% CI: 0.72-0.99), third (OR: 0.71, 95% CI: 0.58-0.85), and fourth (OR: 0.48, 95% CI: 0.38-0.61) quartiles of OBS had reduced risks of hyperuricemia. Similarly, adults in the second (OR: 0.70, 95% CI: 0.51-0.97) quartile of OBS was associated with lower gout risk in comparison to adults in the lowest quartile. Regarding OBS subclasses, dietary and lifestyle OBS were both negatively correlated with the risk of HUA, and only higher lifestyle OBS was significantly associated with lower gout risk. Furthermore, the subgroup analyses and interaction effects also substantiated similar effects. Significant nonlinear dose-response relationships were observed between overall, dietary, and lifestyle OBS with HUA risk as well as that of lifestyle OBS with gout risk. Conclusion This study strongly suggests the significant negative associations of OBS with HUA and gout in American adults and provides a dietary and lifestyle guideline to reduce the risks.
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Affiliation(s)
- Kai Wang
- Department of Public Health, Wuhan Fourth Hospital, Wuhan, China
| | - Jinyi Wu
- Department of Public Health, Wuhan Fourth Hospital, Wuhan, China
| | - Minggang Deng
- Department of Psychiatry, Wuhan Mental Health Center, Wuhan, China
- Department of Psychiatry, Wuhan Hospital for Psychotherapy, Wuhan, China
| | - Jiaqi Nie
- XiaoGan Center for Disease Control and Prevention, Xiaogan, China
| | - Fengxi Tao
- Department of Public Health, Wuhan Fourth Hospital, Wuhan, China
| | - Qingwen Li
- Department of Public Health, Wuhan Fourth Hospital, Wuhan, China
| | - Xin Luo
- Department of Public Health, Wuhan Fourth Hospital, Wuhan, China
| | - Fang Xia
- Department of Public Health, Wuhan Fourth Hospital, Wuhan, China
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19
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Wu X, Hu C, Wu T, Du X, Peng Z, Xue W, Chen Y, Dong L. Mendelian randomization evidence based on European ancestry for the causal effects of leukocyte telomere length on prostate cancer. Hum Genomics 2024; 18:56. [PMID: 38831447 PMCID: PMC11145789 DOI: 10.1186/s40246-024-00622-8] [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: 10/05/2023] [Accepted: 05/15/2024] [Indexed: 06/05/2024] Open
Abstract
BACKGROUND Several lines of evidence suggest that leukocyte telomere length (LTL) can affect the development of prostate cancer (PC). METHODS Here, we employed single nucleoside polymorphisms (SNPs) as instrumental variables (IVs) for LTL (n = 472,174) and conducted Mendelian randomization analysis to estimate their causal impact on PCs (79,148 patients/61,106 controls and 6311 patients/88,902 controls). RESULTS Every 1-s.d extension of LTL increased the risk of PCs by 34%. Additionally, the analysis of candidate mediators between LTL and PCs via two-step Mendelian randomization revealed that among the 23 candidates, Alzheimer's disease, liver iron content, sex hormone binding global levels, naive CD4-CD8-T cell% T cell, and circulating leptin levels played substantial mediating roles. There is no robust evidence to support the reverse causal relationship between LTL and the selected mediators of PCs. Adjusting for the former four mediators, rather than adjusting for circulating leptin levels, decreased the impact of LTL on PCs. CONCLUSION This study provides potential intervention measures for preventing LTL-induced PCs.
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Affiliation(s)
- Xinrui Wu
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Cong Hu
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Tianyang Wu
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Xinxing Du
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Zehong Peng
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China
| | - Wei Xue
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China.
| | - Yonghui Chen
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China.
| | - Liang Dong
- Department of Urology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, 160 Pujian Road, Shanghai, 200127, China.
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20
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Thasneem A, Sif S, Rahman MM, Crovella S. Can telomeric changes orchestrate the development of autoinflammatory skin diseases? Ital J Dermatol Venerol 2024; 159:318-328. [PMID: 38502535 DOI: 10.23736/s2784-8671.23.07689-2] [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: 03/21/2024]
Abstract
Telomeres, the safeguarding caps at the tips of chromosomes, are pivotal in the aging process of cells and have been linked to skin ailments and inflammatory conditions. Telomeres undergo a gradual reduction in length and factors such as oxidative stress hasten this diminishing process. Skin diseases including inflammatory conditions can be correlated with the shortening of telomeres and the persistent activation of DNA damage response in skin tissues. Telomere dysfunction could disrupt the balance of the skin, impairs wound healing, and may contribute to abnormal cytokine production. Skin aging and processes related to telomeres may function as one of the triggers for skin diseases. The presence of proinflammatory cytokines and dysfunctional telomeres in conditions such as Dyskeratosis Congenita implies a possible connection between the shortening of telomeres and the onset of chronic inflammatory skin disorders. In autoinflammatory skin diseases, chronic inflammation hinders wound healing thus aggravating the progression of the disease. The NF-ĸB pathway might contribute to the initiation or progression of chronic disorders by influencing mechanisms associated with telomere biology. The intricate connections between telomeres, telomerase, telomere-associated proteins, and skin diseases are still a complex puzzle to be solved. Here, we provide an overview of the impact of telomeres on both health and disease with a specific emphasis on their role in skin, inflammation and autoinflammatory skin disorders.
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Affiliation(s)
- Ayshath Thasneem
- Biological Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Said Sif
- Biological Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Md Mizanur Rahman
- Biological Science Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Sergio Crovella
- Laboratory of Animal Research Center (LARC), Qatar University, Doha, Qatar -
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21
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Kirk B, Kuo C, Liu P, Xiang M, Earp JE, Kositsawat J, Kuchel GA, Duque G. Leukocyte telomere length is associated with MRI-thigh fat-free muscle volume: data from 16 356 UK Biobank adults. J Cachexia Sarcopenia Muscle 2024; 15:1157-1166. [PMID: 38553835 PMCID: PMC11154769 DOI: 10.1002/jcsm.13461] [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: 04/06/2023] [Revised: 02/16/2024] [Accepted: 02/28/2024] [Indexed: 06/07/2024] Open
Abstract
BACKGROUND Telomere attrition may share common biological mechanisms with bone and muscle loss with aging. Here, we investigated the association between these hallmarks of aging using data from UK Biobank, a large observational study. METHODS Leukocyte telomere length (LTL as T/S ratio) was measured using a multiplex qPCR assay at baseline (2006-2010). Bone mineral density (whole body and regional; via dual-energy X-ray absorptiometry), trabecular bone score (via lumbar-spine dual-energy X-ray absorptiometry images), fat-free muscle volume (thighs; via magnetic resonance imaging), and muscle fat infiltration (thighs; via magnetic resonance imaging) were measured during the imaging visit (2014-2018). Regression models were used to model LTL against a muscle or bone outcome, unadjusted and adjusted for covariates. RESULTS A total of 16 356 adults (mean age: 62.8 ± 7.5 years, 50.5% women) were included. In the fully adjusted model, thigh fat-free muscle volume was associated with LTL in the overall sample (adjusted standardized β (aβ) = 0.017, 95% CI 0.009 to 0.026, P < 0.001, per SD increase in LTL), with stronger associations in men (aβ = 0.022, 95% CI 0.010 to 0.034, P < 0.001) than in women (aβ = 0.013, 95% CI 0.000 to 0.025, P = 0.041) (sex-LTL P = 0.028). The adjusted odds ratio (aOR) for low thigh fat-free muscle volume (body mass index-adjusted, sex-specific bottom 20%) was 0.93 per SD increase in LTL (95% CI 0.89 to 0.96, P < 0.001) in the overall sample, with stronger associations in men (aOR = 0.92, 95% CI 0.87 to 0.99, P = 0.008) than women (aOR = 0.93, 95% CI 0.88 to 0.98, P = 0.009), although the sex difference was not statistically significant in this model (sex-LTL P = 0.37). LTL was not associated with bone mineral density, trabecular bone score, or muscle fat infiltration in the overall or subgroup analyses (P > 0.05). CONCLUSIONS LTL was consistently associated with thigh fat-free muscle volume in men and women. Future research should investigate moderating effects of lifestyle factors (e.g., physical activity, nutrition, or chronic diseases) in the association between LTL and muscle volume.
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Affiliation(s)
- Ben Kirk
- Department of Medicine, Western Health, Melbourne Medical SchoolUniversity of MelbourneMelbourneVICAustralia
- Australian Institute for Musculoskeletal Science (AIMSS)University of Melbourne and Western HealthMelbourneVICAustralia
| | - Chia‐Ling Kuo
- The Cato T. Laurencin Institute for Translation in Regenerative EngineeringUniversity of Connecticut HealthFarmingtonCTUSA
- UConn Center on AgingUniversity of ConnecticutFarmingtonCTUSA
| | - Peiran Liu
- The Cato T. Laurencin Institute for Translation in Regenerative EngineeringUniversity of Connecticut HealthFarmingtonCTUSA
| | - Meiruo Xiang
- The Cato T. Laurencin Institute for Translation in Regenerative EngineeringUniversity of Connecticut HealthFarmingtonCTUSA
| | - Jacob E. Earp
- UConn Center on AgingUniversity of ConnecticutFarmingtonCTUSA
| | | | | | - Gustavo Duque
- Department of Medicine, Western Health, Melbourne Medical SchoolUniversity of MelbourneMelbourneVICAustralia
- Australian Institute for Musculoskeletal Science (AIMSS)University of Melbourne and Western HealthMelbourneVICAustralia
- Bone, Muscle & Geroscience GroupResearch Institute of the McGill University Health CentreMontrealQCCanada
- Dr. Joseph Kaufmann Chair in Geriatric Medicine, Department of MedicineMcGill UniversityMontrealQCCanada
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22
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Rinne GR, Carroll JE, Guardino CM, Shalowitz MU, Ramey SL, Schetter CD. Parental Preconception Posttraumatic Stress Symptoms and Maternal Prenatal Inflammation Prospectively Predict Shorter Telomere Length in Children. Psychosom Med 2024; 86:410-421. [PMID: 37594236 PMCID: PMC10879462 DOI: 10.1097/psy.0000000000001241] [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] [Indexed: 08/19/2023]
Abstract
OBJECTIVE Parental trauma exposure and trauma-related distress can increase the risk of adverse health outcomes in offspring, but the pathways implicated in intergenerational transmission are not fully explicated. Accelerated biological aging may be one mechanism underlying less favorable health in trauma-exposed individuals and their offspring. This study examines the associations of preconception maternal and paternal posttraumatic stress disorder (PTSD) symptoms with child telomere length, and maternal prenatal C-reactive protein (CRP) as a biological mechanism. METHODS Mothers ( n = 127) and a subset of the fathers ( n = 84) reported on PTSD symptoms before conception. Mothers provided blood spots in the second and third trimesters that were assayed for CRP. At age 4 years, children provided buccal cells for measurement of telomere length. Models adjusted for parental age, socioeconomic status, maternal prepregnancy body mass index, child biological sex, and child age. RESULTS Mothers' PTSD symptoms were significantly associated with shorter child telomere length ( β = -0.22, SE = 0.10, p = .023). Fathers' PTSD symptoms were also inversely associated with child telomere length ( β = -0.21, SE = 0.11), although nonsignificant ( p = .065). There was no significant indirect effect of mothers' PTSD symptoms on child telomere length through CRP in pregnancy, but higher second-trimester CRP was significantly associated with shorter child telomere length ( β = -0.35, SE = 0.18, p = .048). CONCLUSIONS Maternal symptoms of PTSD before conception and second-trimester inflammation were associated with shorter telomere length in offspring in early childhood, independent of covariates. Findings indicate that intergenerational transmission of parental trauma may occur in part through accelerated biological aging processes and provide further evidence that prenatal proinflammatory processes program child telomere length.Open Science Framework Preregistration:https://osf.io/7c2d5/?view_only=cd0fb81f48db4b8f9c59fc8bb7b0ef97 .
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Affiliation(s)
| | - Judith E. Carroll
- Cousins Center for Psychoneuroimmunology, University of California, Los Angeles
- Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles
- Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles
- David Geffen School of Medicine, University of California, Los Angeles
| | | | | | - Sharon Landesman Ramey
- Fralin Biomedical Research Institute. Virginia Polytechnic Institute and State University
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23
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Walker CG, Thayer ZM, Marks EJ, Ly KN, Pillai A, Waldie K, Underwood L, Snell RG, Knowles SD, Cha JE, Morton SMB. Association between maternal depression symptoms and child telomere length. J Psychiatr Res 2024; 174:319-325. [PMID: 38685189 DOI: 10.1016/j.jpsychires.2024.04.037] [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: 10/02/2023] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 05/02/2024]
Abstract
The biological mechanisms that explain how adverse early life events influence adult disease risk are poorly understood. One proposed mechanism is via the induction of accelerated biological aging, for which telomere length is considered a biomarker. We aimed to determine if maternal depression pre- and post-partum was associated with telomere length in children at 4 years of age (n = 4299). Mothers completed structured questionnaires assessing depression during pregnancy (Edinburgh Depression Scale), at 9 months (Edinburgh Depression Scale), and at 54 months postpartum (Patient Health Questionnaire 9). Regression methods were used to investigate the relationship between telomere length (DNA from saliva) and maternal depression score recorded at each stage. Significant covariates included in the final model were: maternal age at pregnancy; child sex; child ethnicity; gestational age group, and rurality group. Child telomere length was found to be longer if their mother had a higher depression score at both postpartum time points tested (9 months of age; coefficient 0.003, SE = 0.001, P = 0.01, 54 months of age; coefficient 0.003, SE = 0.002, P = 0.02). Although these findings seem paradoxical, increased telomere length may be an adaptive response to early life stressors. We propose several testable hypotheses for these results and to determine if the positive association between depression and telomere length is a developmental adaptation or an indirect consequence of environmental factors.
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Affiliation(s)
- Caroline G Walker
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand.
| | - Zaneta M Thayer
- Department of Anthropology, Dartmouth College, Hanover, NH, USA
| | - Emma J Marks
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand
| | - Kien N Ly
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand
| | - Avinesh Pillai
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand; Department of Statistics, University of Auckland, Auckland, New Zealand
| | - Karen Waldie
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand; School of Psychology, University of Auckland, Auckland, New Zealand
| | - Lisa Underwood
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand
| | - Russell G Snell
- School of Biological Sciences, Centre for Brain Research, University of Auckland, Auckland, New Zealand
| | - Sarah D Knowles
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand; Auckland Museum, Auckland, New Zealand
| | - Jane E Cha
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand
| | - Susan M B Morton
- Centre for Longitudinal Research - He Ara ki Mua and Growing Up in New Zealand, University of Auckland, New Zealand
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24
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Du X, Fan R, Kong J. What improvements do general exercise training and traditional Chinese exercises have on knee osteoarthritis? A narrative review based on biological mechanisms and clinical efficacy. Front Med (Lausanne) 2024; 11:1395375. [PMID: 38841568 PMCID: PMC11150680 DOI: 10.3389/fmed.2024.1395375] [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: 03/03/2024] [Accepted: 04/22/2024] [Indexed: 06/07/2024] Open
Abstract
Background Knee osteoarthritis (KOA) is a disease that significantly affects the quality of life of patients, with a complex pathophysiology that includes degeneration of cartilage and subchondral bone, synovitis, and associations with mechanical load, inflammation, metabolic factors, hormonal changes, and aging. Objective This article aims to comprehensively review the biological mechanisms and clinical effects of general exercise training and traditional Chinese exercises (such as Tai Chi and Qigong) on the treatment of KOA, providing references for the development of clinical exercise prescriptions. Methods A systematic search of databases including PubMed, Web of Science, Google Scholar, and China National Knowledge Infrastructure (CNKI) was conducted, reviewing studies including randomized controlled trials (RCTs), observational studies, systematic reviews, and meta-analyses. Keywords included "knee osteoarthritis," "exercise therapy," "physical activity," and "traditional Chinese exercise." Results and conclusion General exercise training positively affects KOA by mechanisms such as promoting blood circulation, improving the metabolism of inflammatory factors, enhancing the expression of anti-inflammatory cytokines, and reducing cartilage cell aging. Traditional Chinese exercises, like Tai Chi and Qigong, benefit the improvement of KOA symptoms and tissue repair by regulating immune function and alleviating joint inflammation. Clinical studies have shown that both types of exercise can improve physical function, quality of life, and pain relief in patients with KOA. Both general exercise training and traditional Chinese exercises are non-pharmacological treatment options for KOA that can effectively improve patients' physiological function and quality of life. Future research should further explore the long-term effects and biological mechanisms of these exercise interventions and develop personalized exercise programs based on the specific needs of patients.
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Affiliation(s)
- Xingbin Du
- Shandong Huayu University of Technology, Dezhou, China
- Faculty of Education, Qufu Normal University, Qufu, China
| | - Rao Fan
- College of Sports Science, Qufu Normal University, Qufu, China
| | - Jianda Kong
- College of Sports Science, Qufu Normal University, Qufu, China
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25
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Arellano MYG, VanHeest M, Emmadi S, Abdul-Hafez A, Ibrahim SA, Thiruvenkataramani RP, Teleb RS, Omar H, Kesaraju T, Mohamed T, Madhukar BV, Omar SA. Role of Mesenchymal Stem/Stromal Cells (MSCs) and MSC-Derived Extracellular Vesicles (EVs) in Prevention of Telomere Length Shortening, Cellular Senescence, and Accelerated Biological Aging. Bioengineering (Basel) 2024; 11:524. [PMID: 38927760 PMCID: PMC11200821 DOI: 10.3390/bioengineering11060524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Revised: 05/11/2024] [Accepted: 05/13/2024] [Indexed: 06/28/2024] Open
Abstract
Biological aging is defined as a progressive decline in tissue function that eventually results in cell death. Accelerated biologic aging results when the telomere length is shortened prematurely secondary to damage from biological or environmental stressors, leading to a defective reparative mechanism. Stem cells therapy may have a potential role in influencing (counteract/ameliorate) biological aging and maintaining the function of the organism. Mesenchymal stem cells, also called mesenchymal stromal cells (MSCs) are multipotent stem cells of mesodermal origin that can differentiate into other types of cells, such as adipocytes, chondrocytes, and osteocytes. MSCs influence resident cells through the secretion of paracrine bioactive components such as cytokines and extracellular vesicles (EVs). This review examines the changes in telomere length, cellular senescence, and normal biological age, as well as the factors contributing to telomere shortening and accelerated biological aging. The role of MSCs-especially those derived from gestational tissues-in prevention of telomere shortening (TS) and accelerated biological aging is explored. In addition, the strategies to prevent MSC senescence and improve the antiaging therapeutic application of MSCs and MSC-derived EVs in influencing telomere length and cellular senescence are reviewed.
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Affiliation(s)
- Myrna Y. Gonzalez Arellano
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
- Regional Neonatal Intensive Care Unit, Sparrow Hospital, Lansing, MI 48912, USA
| | - Matthew VanHeest
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
| | - Sravya Emmadi
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
| | - Amal Abdul-Hafez
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
| | - Sherif Abdelfattah Ibrahim
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
- Histology and Cell Biology Department, Faculty of Medicine, Mansoura University, Mansoura 35516, Egypt
| | - Ranga P. Thiruvenkataramani
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
- Regional Neonatal Intensive Care Unit, Sparrow Hospital, Lansing, MI 48912, USA
| | - Rasha S. Teleb
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
- Department of Pediatrics and Neonatology, Qena Faculty of Medicine, South Valley University, Qena 83523, Egypt
| | - Hady Omar
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
| | - Tulasi Kesaraju
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
| | - Tarek Mohamed
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
- Regional Neonatal Intensive Care Unit, Sparrow Hospital, Lansing, MI 48912, USA
| | - Burra V. Madhukar
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
| | - Said A. Omar
- Division of Neonatology, Department of Pediatrics and Human Development, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.Y.G.A.); (A.A.-H.); (S.A.I.); (R.P.T.); (R.S.T.); (H.O.); (T.K.); (T.M.); (B.V.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA; (M.V.); (S.E.)
- Regional Neonatal Intensive Care Unit, Sparrow Hospital, Lansing, MI 48912, USA
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Nanda A, Logan A, Tennyson RL. The influence of perceived stress and motivation on telomere length among NCAA swimmers. Am J Hum Biol 2024:e24091. [PMID: 38747360 DOI: 10.1002/ajhb.24091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 04/09/2024] [Accepted: 04/30/2024] [Indexed: 05/19/2024] Open
Abstract
INTRODUCTION Telomere length (TL) shortening is associated with increased cellular senescence and functional decline with age. Regular physical activity is posited to safeguard against TL shortening, but there is disagreement on how concurrent psychosocial stress may influence this relationship. The current analysis explored whether psychosocial stress is associated with TL differences in highly physically active individuals. METHODS TL was measured from capillary dried blood spots collected from Division-I (D-1) and Division-III (D-3) National Collegiate Athletics Association (NCAA) swimmers (N = 28) and non-athlete students from the same schools (N = 15). All participants completed Cohen's Perceived Stress Scale (PSS) and student-athletes completed an additional questionnaire to assess psychosocial factors associated with their lifestyle; The Student Athletes' Motivation towards Sports and Academics Questionnaire (SAMSAQ). Semi-structured interviews further contextualized how student-athletes internalize their stress. RESULTS There was no significant difference in TL or PSS scores between swimmers and controls. D-1 swimmers reported significantly higher career and student-athlete motivation scores compared to D-3, but non-significantly higher PSS and similar academic motivation scores. Themes from interviews with collegiate swimmers included COVID-19 stress, fear of injury, pressure from academics, expectations to perform, and financial pressures. CONCLUSIONS These themes may have contributed to higher PSS scores in D-1 swimmers compared to D-3 but did not appear to impact their TL. Given differences in perceived stress, sources of stress, and SAMSAQ scores, further analyses with larger sample sizes are needed to better understand how these factors influence human biology and health while engaged in intense physical activity.
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Affiliation(s)
- Anamika Nanda
- Department of Biological Sciences, University of Southern California, Los Angeles, California, USA
| | - Alvin Logan
- Department of Anthropology, University of Washington, Seattle, Washington, USA
| | - Robert L Tennyson
- Department of Sociology, University of Utah, Salt Lake City, Utah, USA
- Center for Studies in Demography and Ecology, University of Washington, Seattle, Washington, USA
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Fan L, Zhao L, Zhu Y, Li L, Yang X, Ma P, Liu J, Zhao Q, Li X. Hydroxytyrosol ameliorates stress-induced liver injury through activating autophagy via HDAC1/2 inhibition. Food Funct 2024; 15:5103-5117. [PMID: 38680105 DOI: 10.1039/d4fo01027b] [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: 05/01/2024]
Abstract
Hydroxytyrosol (HT), a phenolic extra-virgin olive oil compound used as a food supplement, has been recognized to protect liver function and alleviate stress-induced depressive-like behaviors. However, its protective effects against stress-induced liver injury (SLI) remain unknown. Here, the anti-SLI effect of HT was evaluated in mice with chronic unpredictable mild stress-induced SLI. Network pharmacology combined with molecular docking was used to clarify the underlying mechanism of action of HT against SLI, followed by experimental verification. The results showed that accompanying with the alleviation of HT on stress-induced depressive-like behaviors, HT was confirmed to exert the protective effects against SLI, as represented by reduced serum corticosterone (CORT), aspartate aminotransferase and alanine aminotransferase activities, as well as repair of liver structure, inhibition of oxidative homeostasis collapse, and inflammation reaction in the liver. Furthermore, core genes including histone deacetylase 1 and 2 (HDAC1/2), were identified as potential targets of HT in SLI based on bioinformatic screening and simulation. Consistently, HT significantly inhibited HDAC1/2 expression to maintain mitochondrial dysfunction in an autophagy-dependent manner, which was confirmed in a CORT-induced AML-12 cell injury and SLI mice models combined with small molecule inhibitors. We provide the first evidence that HT inhibits HDAC1/2 to induce autophagy in hepatocytes for maintaining mitochondrial dysfunction, thus preventing inflammation and oxidative stress for exerting an anti-SLI effect. This constitutes a novel therapeutic modality to synchronously prevent stress-induced depression-like behaviors and liver injury, supporting the advantaged therapeutic potential of HT.
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Affiliation(s)
- Li Fan
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- Zhejiang Provincial Key Laboratory of Traditional Chinese Medicine for Clinical Evaluation and Translational Research, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Lijuan Zhao
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- Zhejiang Provincial Key Laboratory of Traditional Chinese Medicine for Clinical Evaluation and Translational Research, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Yangbo Zhu
- Division of Hepatobiliary and Pancreatic Surgery, Department of Surgery, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Lin Li
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- Zhejiang Provincial Key Laboratory of Traditional Chinese Medicine for Clinical Evaluation and Translational Research, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Xueping Yang
- Department of Integrated Traditional Chinese and Western Medicine, Institute of Integrative Medicine, Xiangya Hospital, Central South University, Changsha 410008, China
| | - Ping Ma
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Jian Liu
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- Zhejiang Provincial Key Laboratory of Traditional Chinese Medicine for Clinical Evaluation and Translational Research, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Qingwei Zhao
- Department of Clinical Pharmacy, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
- Zhejiang Provincial Key Laboratory of Traditional Chinese Medicine for Clinical Evaluation and Translational Research, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
| | - Xiaobo Li
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
- Zhejiang Provincial Key Laboratory of Traditional Chinese Medicine for Clinical Evaluation and Translational Research, Zhejiang Provincial Key Laboratory for Drug Evaluation and Clinical Research, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China
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Tao X, Zhu Z, Wang L, Li C, Sun L, Wang W, Gong W. Biomarkers of Aging and Relevant Evaluation Techniques: A Comprehensive Review. Aging Dis 2024; 15:977-1005. [PMID: 37611906 PMCID: PMC11081160 DOI: 10.14336/ad.2023.00808-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023] Open
Abstract
The risk of developing chronic illnesses and disabilities is increasing with age. To predict and prevent aging, biomarkers relevant to the aging process must be identified. This paper reviews the known molecular, cellular, and physiological biomarkers of aging. Moreover, we discuss the currently available technologies for identifying these biomarkers, and their applications and potential in aging research. We hope that this review will stimulate further research and innovation in this emerging and fast-growing field.
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Affiliation(s)
- Xue Tao
- Department of Research, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.
| | - Ziman Zhu
- Beijing Rehabilitation Medicine Academy, Capital Medical University, Beijing, China.
| | - Liguo Wang
- Key Laboratory of Protein Sciences, School of Pharmaceutical Sciences, Tsinghua University, Beijing, China.
| | - Chunlin Li
- School of Biomedical Engineering, Capital Medical University, Beijing, China.
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing, China.
| | - Liwei Sun
- School of Biomedical Engineering, Capital Medical University, Beijing, China.
- Beijing Key Laboratory of Fundamental Research on Biomechanics in Clinical Application, Capital Medical University, Beijing, China.
| | - Wei Wang
- Department of Rehabilitation Radiology, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.
| | - Weijun Gong
- Department of Neurological Rehabilitation, Beijing Rehabilitation Hospital, Capital Medical University, Beijing, China.
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Duseikaite M, Gedvilaite G, Mikuzis P, Andrulionyte J, Kriauciuniene L, Liutkeviciene R. Investigating the Relationship between Telomere-Related Gene Variants and Leukocyte Telomere Length in Optic Neuritis Patients. J Clin Med 2024; 13:2694. [PMID: 38731223 PMCID: PMC11084964 DOI: 10.3390/jcm13092694] [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: 04/07/2024] [Revised: 04/26/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
Optic neuritis (ON) is a condition marked by optic nerve inflammation due to various potential triggers. Research indicates a link between telomeres and inflammation, as studies demonstrate that inflammation can lead to increased telomere shortening. Aim: We aimed to determine the associations of telomere-related telomeric repeat binding factor 1 (TERF1) rs1545827, rs10107605, and telomeric repeat binding factor 2 (TERF2) rs251796 polymorphisms and relative leukocyte telomere length (LTL) with the occurrence of ON. Methods: In this research, a total of 73 individuals diagnosed with optic neuritis (ON) were studied and the control group included 170 individuals without any health issues. The DNA samples were obtained from peripheral blood leukocytes, which were purified using the DNA salting-out technique. Real-time polymerase chain reaction (RT-PCR) assessed single-nucleotide polymorphisms (SNPs) and relative leukocyte telomere lengths (LTL). The data obtained were processed and analyzed using the "IBM SPSS Statistics 29.0" program. Results: Our study revealed the following results: in the male group, TERF2 rs251796 (AA, AG, and TT) statistically significantly differed between the long and short telomere group, with frequencies of 65.7%, 22.9%, and 2.0% in long telomeres, compared to 35.1%, 56.8%, and 8.1% in the short telomere group (p = 0.013). The TERF2 rs251796 CT genotype, compared to CC, under the codominant genetic model, was associated with 4.7-fold decreased odds of telomere shortening (p = 0.005). Meanwhile, CT+TT genotypes, compared to CC under the dominant genetic model, were associated with 3.5-fold decreased odds of telomere shortening (p = 0.011). Also, the CT genotype, compared to CC+TT, under the overdominant genetic model, was associated with 4.4-fold decreased odds of telomere shortening (p = 0.004). Conclusions: The current evidence may suggest a protective role of TERF2 rs251796 in the occurrence of ON in men.
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Affiliation(s)
- Monika Duseikaite
- Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eivenių Street 2, LT-50161 Kaunas, Lithuania; (G.G.); (L.K.); (R.L.)
- Faculty of Pharmacy, Lithuanian University of Health Sciences, Sukilėlių Pr. 13, LT-50166 Kaunas, Lithuania
| | - Greta Gedvilaite
- Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eivenių Street 2, LT-50161 Kaunas, Lithuania; (G.G.); (L.K.); (R.L.)
- Medical Faculty, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (P.M.); (J.A.)
| | - Paulius Mikuzis
- Medical Faculty, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (P.M.); (J.A.)
| | - Juste Andrulionyte
- Medical Faculty, Lithuanian University of Health Sciences, LT-50161 Kaunas, Lithuania; (P.M.); (J.A.)
| | - Loresa Kriauciuniene
- Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eivenių Street 2, LT-50161 Kaunas, Lithuania; (G.G.); (L.K.); (R.L.)
| | - Rasa Liutkeviciene
- Laboratory of Ophthalmology, Institute of Neuroscience, Lithuanian University of Health Sciences, Eivenių Street 2, LT-50161 Kaunas, Lithuania; (G.G.); (L.K.); (R.L.)
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Butts B, Hope C, Herring C, Mueller K, Gary RA. The Effects of Exercise on Telomere Length in Persons With Heart Failure. J Cardiovasc Nurs 2024; 39:E86-E92. [PMID: 37801568 PMCID: PMC10997734 DOI: 10.1097/jcn.0000000000001044] [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] [Indexed: 10/08/2023]
Abstract
BACKGROUND Telomere length is reduced in persons with heart failure (HF). Inflammation is a putative mechanism contributing to telomere shortening. Although physical activity is known to increase telomere length, its effects in HF are unknown. OBJECTIVE The aim of this study was to examine the effects of exercise on telomere length and its relationship with interleukin (IL)-1β in persons with HF. METHODS This secondary analysis of a 3-month home-based aerobic exercise intervention measured total telomere length and IL-1β levels in persons with HF (69% with reduced ejection fraction). RESULTS Total telomere length increased and plasma IL-1β levels decreased in the exercise group from baseline to 3 months. Total telomere length was negatively associated with IL-1β at baseline ( r = -0.441 P = .001). CONCLUSIONS The association between telomere length and IL-1β suggests a relationship between inflammation and cellular aging. Moderate-intensity exercise may help maintain cellular functions. Further research is needed to examine the effects on outcomes in persons with HF.
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Qin P, Sun Y, Li L. Mitochondrial dysfunction in chronic neuroinflammatory diseases (Review). Int J Mol Med 2024; 53:47. [PMID: 38577947 PMCID: PMC10999227 DOI: 10.3892/ijmm.2024.5371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 03/14/2024] [Indexed: 04/06/2024] Open
Abstract
Chronic neuroinflammation serves a key role in the onset and progression of neurodegenerative disorders. Mitochondria serve as central regulators of neuroinflammation. In addition to providing energy to cells, mitochondria also participate in the immunoinflammatory response of neurodegenerative disorders including Alzheimer's disease, Parkinson's disease, multiple sclerosis and epilepsy, by regulating processes such as cell death and inflammasome activation. Under inflammatory conditions, mitochondrial oxidative stress, epigenetics, mitochondrial dynamics and calcium homeostasis imbalance may serve as underlying regulatory mechanisms for these diseases. Therefore, investigating mechanisms related to mitochondrial dysfunction may result in therapeutic strategies against chronic neuroinflammation and neurodegeneration. The present review summarizes the mechanisms of mitochondria in chronic neuroinflammatory diseases and the current treatment approaches that target mitochondrial dysfunction in these diseases.
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Affiliation(s)
- Pei Qin
- Department of Anesthesiology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116000, P.R. China
| | - Ye Sun
- Department of Anesthesiology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116000, P.R. China
| | - Liya Li
- Department of Anesthesiology, The Second Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116000, P.R. China
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32
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Yan X, Yang P, Li Y, Liu T, Zha Y, Wang T, Zhang J, Feng Z, Li M. New insights from bidirectional Mendelian randomization: causal relationships between telomere length and mitochondrial DNA copy number in aging biomarkers. Aging (Albany NY) 2024; 16:7387-7404. [PMID: 38663933 PMCID: PMC11087129 DOI: 10.18632/aging.205765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Accepted: 03/28/2024] [Indexed: 05/08/2024]
Abstract
Mitochondrial DNA (mtDNA) copy number and telomere length (TL) are dynamic factors that have been linked to the aging process in organisms. However, the causal relationship between these variables remains uncertain. In this research, instrumental variables (IVs) related to mtDNA copy number and TL were obtained from publicly available genome-wide association studies (GWAS). Through bidirectional Mendelian randomization (MR) analysis, we examined the potential causal relationship between these factors. The forward analysis, with mtDNA copy number as the exposure and TL as the outcome, did not reveal a significant effect (B=-0.004, P>0.05). On the contrary, upon conducting a reverse analysis, it was found that there exists a positive causal relationship (B=0.054, P<0.05). Sensitivity analyses further confirmed the reliability of these results. The outcomes of this study indicate a one-way positive causal relationship, indicating that telomere shortening in the aging process may lead to a decrease in mtDNA copy number, providing new perspectives on their biological mechanisms.
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Affiliation(s)
- Xinyu Yan
- Zhongshan City People’s Hospital, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Peixuan Yang
- Zhongshan City People’s Hospital, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Yani Li
- Department of Radiation Oncology, Zhongshan City People’s Hospital, Zhongshan 528403, Guangdong, China
| | - Ting Liu
- Department of Radiation Oncology, Zhongshan City People’s Hospital, Zhongshan 528403, Guangdong, China
| | - Yawen Zha
- Department of Radiation Oncology, Zhongshan City People’s Hospital, Zhongshan 528403, Guangdong, China
| | - Ting Wang
- Department of Radiation Oncology, Zhongshan City People’s Hospital, Zhongshan 528403, Guangdong, China
| | - Jingjing Zhang
- Department of Radiation Oncology, Zhongshan City People’s Hospital, Zhongshan 528403, Guangdong, China
| | - Zhijun Feng
- Department of Radiation Oncology, Jiangmen Central Hospital, Jiangmen 529000, Guangdong, China
| | - Minying Li
- Department of Radiation Oncology, Zhongshan City People’s Hospital, Zhongshan 528403, Guangdong, China
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Ju W, Zhao Y, Yu Y, Zhao S, Xiang S, Lian F. Mechanisms of mitochondrial dysfunction in ovarian aging and potential interventions. Front Endocrinol (Lausanne) 2024; 15:1361289. [PMID: 38694941 PMCID: PMC11061492 DOI: 10.3389/fendo.2024.1361289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/22/2024] [Indexed: 05/04/2024] Open
Abstract
Mitochondria plays an essential role in regulating cellular metabolic homeostasis, proliferation/differentiation, and cell death. Mitochondrial dysfunction is implicated in many age-related pathologies. Evidence supports that the dysfunction of mitochondria and the decline of mitochondrial DNA copy number negatively affect ovarian aging. However, the mechanism of ovarian aging is still unclear. Treatment methods, including antioxidant applications, mitochondrial transplantation, emerging biomaterials, and advanced technologies, are being used to improve mitochondrial function and restore oocyte quality. This article reviews key evidence and research updates on mitochondrial damage in the pathogenesis of ovarian aging, emphasizing that mitochondrial damage may accelerate and lead to cellular senescence and ovarian aging, as well as exploring potential methods for using mitochondrial mechanisms to slow down aging and improve oocyte quality.
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Affiliation(s)
- Wenhan Ju
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Yuewen Zhao
- CReATe Fertility Centre, Toronto, ON, Canada
| | - Yi Yu
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shuai Zhao
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Shan Xiang
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Fang Lian
- Department of Reproduction and Genetics, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, China
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Wei B, Zhou Y, Li Q, Zhen S, Wu Q, Xiao Z, Liao J, Zhu B, Duan J, Yang X, Liang F. Outdoor fine particulate matter exposure and telomere length in humans: A systematic review and meta-analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2024; 275:116206. [PMID: 38518608 DOI: 10.1016/j.ecoenv.2024.116206] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 02/17/2024] [Accepted: 03/09/2024] [Indexed: 03/24/2024]
Abstract
Although the association between changes in human telomere length (TL) and ambient fine particulate matter (PM2.5) has been documented, there remains disagreement among the related literature. Our study conducted a systematic review and meta-analysis of epidemiological studies to investigate the health effects of outdoor PM2.5 exposure on human TL after a thorough database search. To quantify the overall effect estimates of TL changes associated with every 10 μg/m3 increase in PM2.5 exposure, we focused on two main topics, which were outdoor long-term exposure and prenatal exposure of PM2.5. Additionally, we included a summary of short-term PM2.5 exposure and its impact on TL due to limited data availability. Our qualitative analysis included 20 studies with 483,600 participants. The meta-analysis showed a statistically significant association between outdoor PM2.5 exposure and shorter human TL, with pooled impact estimates (β) of -0.12 (95% CI: -0.20, -0.03, I2= 95.4%) for general long-term exposure and -0.07 (95% CI: -0.15, 0.00, I2= 74.3%) for prenatal exposure. In conclusion, our findings suggest that outdoor PM2.5 exposure may contribute to TL shortening, and noteworthy associations were observed in specific subgroups, suggesting the impact of various research variables. Larger, high-quality studies using standardized methodologies are necessary to strengthen these conclusions further.
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Affiliation(s)
- Bincai Wei
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Yawen Zhou
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qian Li
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Shihan Zhen
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Qingyao Wu
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Zhiyi Xiao
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jian Liao
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Bin Zhu
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Jiahao Duan
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China
| | - Xueli Yang
- Department of Occupational and Environmental Health, School of Public Health, Tianjin Medical University, 22 Qixiangtai Road, Heping District, Tianjin 300070, China..
| | - Fengchao Liang
- School of Public Health and Emergency Management, Southern University of Science and Technology, Shenzhen 518055, China.
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Frydrychová RČ, Konopová B, Peska V, Brejcha M, Sábová M. Telomeres and telomerase: active but complex players in life-history decisions. Biogerontology 2024; 25:205-226. [PMID: 37610666 DOI: 10.1007/s10522-023-10060-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 08/01/2023] [Indexed: 08/24/2023]
Abstract
Studies on human telomeres have established that telomeres exert a significant influence on lifespan and health of organisms. However, recent research has indicated that the original idea that telomeres affect lifespan in a universal and central manner across all eukaryotic species is an oversimplification. Indeed, findings from a variety of animal species revealed that the role of telomere biology in aging is more subtle and intricate than previously recognized. Here, we show how telomere biology varies depending on the taxon. We also show how telomere biology corresponds to basic life history traits and affects the life table of a species and investments in growth, body size, reproduction, and lifespan; telomeres are hypothesized to shape evolutionary perspectives for species in an active but complex manner. Our evaluation is based on telomere biology data from many examples from throughout the animal kingdom that vary according to the degree of organismal complexity and life history strategies.
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Affiliation(s)
- Radmila Čapková Frydrychová
- Institute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, Ceske Budejovice, Czech Republic.
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, Ceske Budejovice, Czech Republic.
| | - Barbora Konopová
- Institute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, Ceske Budejovice, Czech Republic
| | - Vratislav Peska
- Department of Cell Biology and Radiobiology, Institute of Biophysics of the Czech Academy of Sciences, Královopolská 135, 612 00, Brno, Czech Republic
| | - Miloslav Brejcha
- Institute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, Ceske Budejovice, Czech Republic
- Faculty of Science, University of South Bohemia, Branišovská 1760, 370 05, Ceske Budejovice, Czech Republic
| | - Michala Sábová
- Institute of Entomology, Biology Centre of the Czech Academy of Sciences, Branišovská 31, 370 05, Ceske Budejovice, Czech Republic
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Bai L, Tani T, Kobayashi T, Nouda R, Kanai Y, Sano Y, Takami K, Tomita H, Sugano E, Ozaki T, Kiyono T, Fukuda T. Establishment of immortalized Egyptian Rousettus bat cell lines. FEBS Open Bio 2024; 14:598-612. [PMID: 38373743 PMCID: PMC10988675 DOI: 10.1002/2211-5463.13781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 01/04/2024] [Accepted: 02/09/2024] [Indexed: 02/21/2024] Open
Abstract
The Egyptian Rousettus bat (Rousettus aegyptiacus) is a common fruit bat species that is distributed mainly in Africa and the Middle East. Bats serve as reservoir hosts for numerous pathogens. Human activities, such as hunting bats for food, managing vermin, and causing habitat loss, elevate the likelihood of transmission of bat pathogens to humans and other animals. Consequently, bat cell lines play a crucial role as research materials for investigating viral pathogens. However, the inherent limitation of finite cell division in primary cells necessitates the use of immortalized cells derived from various bat tissues. Herein, we successfully established six fibroblast cell lines derived from an infant bat heart and lungs and an elderly bat heart. Three of the six cell lines, called K4DT cells, were transduced by a combination of cell cycle regulators, mutant cyclin-dependent kinase 4, cyclin D1, and human telomerase reverse transcriptase. The other three cell lines, named SV40 cells, were transfected with simian virus 40 large T antigen. Transgene protein expression was detected in the transduced cells. All three K4DT cell lines and one lung-derived SV40 cell line were virtually immortalized and nearly maintained the normal diploid karyotypes. However, the two other heart-derived SV40 cell lines had aberrant karyotypes and the young bat-derived cell line stopped proliferating at approximately 40 population doublings. These bat cell lines are valuable for studying pathogen genomics and biology.
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Affiliation(s)
- Lanlan Bai
- Graduate School of Science and EngineeringIwate UniversityJapan
| | - Tetsuya Tani
- Laboratory of Animal Reproduction, Department of AgricultureKindai UniversityNaraJapan
| | - Takeshi Kobayashi
- Department of Virology, Research Institute for Microbial DiseasesOsaka UniversityJapan
| | - Ryotaro Nouda
- Department of Virology, Research Institute for Microbial DiseasesOsaka UniversityJapan
| | - Yuta Kanai
- Department of Virology, Research Institute for Microbial DiseasesOsaka UniversityJapan
| | - Yusuke Sano
- Local Independent Administrative Agency Tennoji Zoological GardensOsakaJapan
| | - Kazutoshi Takami
- Osaka Municipal Tennoji Zoological GardensJapan
- Present address:
*Toyohashi Zoo and Botanical ParkToyohashiJapan
| | - Hiroshi Tomita
- Graduate School of Science and EngineeringIwate UniversityJapan
| | - Eriko Sugano
- Graduate School of Science and EngineeringIwate UniversityJapan
| | - Taku Ozaki
- Graduate School of Science and EngineeringIwate UniversityJapan
| | - Tohru Kiyono
- Exploratory Oncology Research & Clinical Trial CenterNational Cancer CenterChibaJapan
| | - Tomokazu Fukuda
- Graduate School of Science and EngineeringIwate UniversityJapan
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Zhong Y, Wang G, Yang S, Zhang Y, Wang X. The role of DNA damage in neural stem cells ageing. J Cell Physiol 2024; 239:e31187. [PMID: 38219047 DOI: 10.1002/jcp.31187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 11/17/2023] [Accepted: 12/20/2023] [Indexed: 01/15/2024]
Abstract
Neural stem cells (NSCs) are pluripotent stem cells with the potential to differentiate into a variety of nerve cells. NSCs are susceptible to both intracellular and extracellular insults, thus causing DNA damage. Extracellular insults include ultraviolet, ionizing radiation, base analogs, modifiers, alkyl agents and others, while intracellular factors include Reactive oxygen species (ROS) radicals produced by mitochondria, mismatches that occur during DNA replication, deamination of bases, loss of bases, and more. When encountered with DNA damage, cells typically employ three coping strategies: DNA repair, damage tolerance, and apoptosis. NSCs, like many other stem cells, have the ability to divide, differentiate, and repair DNA damage to prevent mutations from being passed down to the next generation. However, when DNA damage accumulates over time, it will lead to a series of alterations in the metabolism of cells, which will cause cellular ageing. The ageing and exhaustion of neural stem cell will have serious effects on the body, such as neurodegenerative diseases. The purpose of this review is to examine the processes by which DNA damage leads to NSCs ageing and the mechanisms of DNA repair in NSCs.
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Affiliation(s)
- Yiming Zhong
- School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Guangming Wang
- School of Medicine, Postdoctoral Station of Clinical Medicine, Shanghai Tongji Hospital, Tongji University, Shanghai, China
| | - Shangzhi Yang
- School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Yang Zhang
- Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xianli Wang
- School of Public Health, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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Savage SA. Telomere length and cancer risk: finding Goldilocks. Biogerontology 2024; 25:265-278. [PMID: 38109000 DOI: 10.1007/s10522-023-10080-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 11/13/2023] [Indexed: 12/19/2023]
Abstract
Telomeres are the nucleoprotein complex at chromosome ends essential in genomic stability. Baseline telomere length (TL) is determined by rare and common germline genetic variants but shortens with age and is susceptible to certain environmental exposures. Cellular senescence or apoptosis are normally triggered when telomeres reach a critically short length, but cancer cells overcome these protective mechanisms and continue to divide despite chromosomal instability. Rare germline variants in telomere maintenance genes cause exceedingly short telomeres for age (< 1st percentile) and the telomere biology disorders, which are associated with elevated risks of bone marrow failure, myelodysplastic syndrome, acute myeloid leukemia, and squamous cell carcinoma of the head/neck and anogenital regions. Long telomeres due to rare germline variants in the same or different telomere maintenance genes are associated with elevated risks of other cancers, such as chronic lymphocytic leukemia or sarcoma. Early epidemiology studies of TL in the general population lacked reproducibility but new methods, including creation of a TL polygenic score using common variants, have found longer telomeres associated with excess risks of renal cell carcinoma, glioma, lung cancer, and others. It has become clear that when it comes to TL and cancer etiology, not too short, not too long, but "just right" telomeres are important in minimizing cancer risk.
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Affiliation(s)
- Sharon A Savage
- Clinical Genetics Branch, Division of Cancer Epidemiology and Genetics, National Cancer Institute, 9609 Medical Center Drive, 6E456, Bethesda, MD, 20892-6772, USA.
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Yudin NS, Igoshin AV, Romashov GA, Martynov AA, Larkin DM. Influence of breed and environment on leukocyte telomere length in cattle. Vavilovskii Zhurnal Genet Selektsii 2024; 28:190-197. [PMID: 38680187 PMCID: PMC11043504 DOI: 10.18699/vjgb-24-23] [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: 12/03/2023] [Revised: 12/25/2023] [Accepted: 12/25/2023] [Indexed: 05/01/2024] Open
Abstract
High milk yield is associated with reduced longevity in high-producing dairy cattle breeds. Pre-term culling leads to high replacement heifer demand and economic losses for the dairy industry. Selection for this trait is limited because of low heritability and difficulties in phenotype measurement. Telomeres are elements found at the ends of chromosomes, consisting of repetitive DNA sequences, several thousand base pairs in length, coupled with nucleoprotein complexes. Eventually, in humans and most other animals, telomere length reduces with age. When telomeric DNA is truncated to a critical length, cell ageing, cell cycle arrest, and apoptosis are induced. As a result, telomere length can be considered as a predictor of health risks and an individual's lifespan. The leukocyte telomere length may be used as a proxy phenotype of productive lifespan to improve cattle selection. Our objectives were to assess the effects of breed and breed group (dairy vs. beef) on the leukocyte telomere length and to estimate the effect of cold climate on this trait in Kalmyk cattle populations from the South (Rostov Oblast) and Far North (Republic of Sakha) regions of Russia. The leukocyte telomere lengths were estimated computationally from whole-genome resequencing data. We leveraged data on leukocyte telomere length, sex, and age of 239 animals from 17 cattle breeds. The breed factor had a significant effect on leukocyte telomere length across our sample. There was no difference in leukocyte telomere length between dairy and beef groups. The population factor had a significant effect on leukocyte telomere length in Kalmyk animals. In conclusion, we found that breed, but not breed group (dairy vs. beef), was significantly associated with leukocyte telomere length in cattle. Residence in colder climates was associated with longer leukocyte telomere length in Kalmyk breed cattle.
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Affiliation(s)
- N S Yudin
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A V Igoshin
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - G A Romashov
- Institute of Cytology and Genetics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
| | - A A Martynov
- Arctic State Agrotechnological University, Yakutsk, Republic of Sakha (Yakutia), Russia
| | - D M Larkin
- Royal Veterinary College, University of London, London United Kingdom
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Rusciano D, Russo C. The Therapeutic Trip of Melatonin Eye Drops: From the Ocular Surface to the Retina. Pharmaceuticals (Basel) 2024; 17:441. [PMID: 38675402 PMCID: PMC11054783 DOI: 10.3390/ph17040441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 03/18/2024] [Accepted: 03/27/2024] [Indexed: 04/28/2024] Open
Abstract
Melatonin is a ubiquitous molecule found in living organisms, ranging from bacteria to plants and mammals. It possesses various properties, partly due to its robust antioxidant nature and partly owed to its specific interaction with melatonin receptors present in almost all tissues. Melatonin regulates different physiological functions and contributes to the homeostasis of the entire organism. In the human eye, a small amount of melatonin is also present, produced by cells in the anterior segment and the posterior pole, including the retina. In the eye, melatonin may provide antioxidant protection along with regulating physiological functions of ocular tissues, including intraocular pressure (IOP). Therefore, it is conceivable that the exogenous topical administration of sufficiently high amounts of melatonin to the eye could be beneficial in several instances: for the treatment of eye pathologies like glaucoma, due to the IOP-lowering and neuroprotection effects of melatonin; for the prevention of other dysfunctions, such as dry eye and refractive defects (cataract and myopia) mainly due to its antioxidant properties; for diabetic retinopathy due to its metabolic influence and neuroprotective effects; for macular degeneration due to the antioxidant and neuroprotective properties; and for uveitis, mostly owing to anti-inflammatory and immunomodulatory properties. This paper reviews the scientific evidence supporting the use of melatonin in different ocular districts. Moreover, it provides data suggesting that the topical administration of melatonin as eye drops is a real possibility, utilizing nanotechnological formulations that could improve its solubility and permeation through the eye. This way, its distribution and concentration in different ocular tissues may support its pleiotropic therapeutic effects.
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Affiliation(s)
- Dario Rusciano
- Fidia Research Centre, c/o University of Catania, Via Santa Sofia 89, 95123 Catania, Italy
| | - Cristina Russo
- Department of Biomedical and Biotechnological Sciences, University of Catania, Via Santa Sofia 89, 95123 Catania, Italy;
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An G, Zhao X, Zhao C. Unraveling the causal association between leukocyte telomere length and infertility: A two-sample Mendelian randomization study. PLoS One 2024; 19:e0298997. [PMID: 38512957 PMCID: PMC10956861 DOI: 10.1371/journal.pone.0298997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/04/2024] [Indexed: 03/23/2024] Open
Abstract
Infertility is a significant challenge in modern society, and observed studies have reported the association between telomere length and infertility. Whether this relationship is causal remains controversial.We employed two-sample mendelian randomization (MR) to investigate the causal relationship between leukocyte telomere length (LTL) and major causes of infertility, including male and female infertility, sperm abnormalities, and endometriosis. MR analyses were mainly performed using the inverse variance weighted (IVW) method and complemented with other MR methods.Our findings demonstrate a causal association between LTL and endometriosis (OR1.304, 95% CI (1.122,1.517), p = 0.001), suggesting its potential as a biomarker for this condition. However, we did not observe a significant causal relationship between LTL and other infertility causes.Our study presents compelling evidence on the relationship between LTL and endometriosis. Meanwhile, our study demonstrates that there is no causal relationship between LTL and infertility. This research contributes to the field by shedding light on the importance of LTL in the early diagnosis and intervention of endometriosis.
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Affiliation(s)
- Gaole An
- Information Department, Bethune International Peace Hospital, Shijiazhuang, Hebei Province, China
| | - Xingnan Zhao
- Department of Obstetrics and Gynecology, Bethune International Peace Hospital, Shijiazhuang, Hebei Province, China
| | - Chenghui Zhao
- Key Laboratory of Biomedical Engineering and Translational Medicine, Ministry of Industry and Information Technology, Beijing, China
- Research Center for Biomedical Engineering, Medical Innovation & Research Division, Chinese PLA General Hospital, Beijing, China
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Campisi M, Cannella L, Celik D, Gabelli C, Gollin D, Simoni M, Ruaro C, Fantinato E, Pavanello S. Mitigating cellular aging and enhancing cognitive functionality: visual arts-mediated Cognitive Activation Therapy in neurocognitive disorders. Front Aging Neurosci 2024; 16:1354025. [PMID: 38524114 PMCID: PMC10957554 DOI: 10.3389/fnagi.2024.1354025] [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: 12/11/2023] [Accepted: 02/20/2024] [Indexed: 03/26/2024] Open
Abstract
The growing phenomenon of population aging is redefining demographic dynamics, intensifying age-related conditions, especially dementia, projected to triple by 2050 with an enormous global economic burden. This study investigates visual arts-mediated Cognitive Activation Therapy (CAT) as a non-pharmacological CAT intervention targets both biological aging [leukocyte telomere length (LTL), DNA methylation age (DNAmAge)] and cognitive functionality. Aligning with a broader trend of integrating non-pharmacological approaches into dementia care. The longitudinal study involved 20 patients with mild to moderate neurocognitive disorders. Cognitive and functional assessments, and biological aging markers -i.e., LTL and DNAmAge- were analyzed before and after CAT intervention. Change in LTL was positively correlated with days of treatment (p =0.0518). LTL significantly elongated after intervention (p =0.0269), especially in men (p =0.0142), correlating with younger age (p =0.0357), and higher education (p =0.0008). DNAmAge remained instead stable post-treatment. Cognitive and functional improvements were observed for Copy of complex geometric figure, Progressive Silhouettes, Position Discrimination, Communication Activities of Daily Living-Second edition, Direct Functional Status (p < 0.0001) and Object decision (p =0.0594), but no correlations were found between LTL and cognitive gains. Visual arts-mediated CAT effectively mitigates cellular aging, especially in men, by elongating LTL. These findings underscore the potential of non-pharmacological interventions in enhancing cognitive and functional status and general well-being in dementia care. Further research with larger and longer-term studies is essential for validation.
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Affiliation(s)
- Manuela Campisi
- Occupational Medicine, Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Luana Cannella
- Occupational Medicine, Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Dilek Celik
- Occupational Medicine, Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Carlo Gabelli
- Regional Centre for the Aging Brain (CRIC), University Hospital of Padua, Padua, Italy
| | - Donata Gollin
- Regional Centre for the Aging Brain (CRIC), University Hospital of Padua, Padua, Italy
| | - Marco Simoni
- Regional Centre for the Aging Brain (CRIC), University Hospital of Padua, Padua, Italy
| | - Cristina Ruaro
- Regional Centre for the Aging Brain (CRIC), University Hospital of Padua, Padua, Italy
| | - Elena Fantinato
- Regional Centre for the Aging Brain (CRIC), University Hospital of Padua, Padua, Italy
| | - Sofia Pavanello
- Occupational Medicine, Department of Cardio-Thoraco-Vascular Sciences and Public Health, University of Padua, Padua, Italy
- University Hospital of Padua, Padua, Italy
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Carver AJ, Hing B, Elser BA, Lussier SJ, Yamanashi T, Howard MA, Kawasaki H, Shinozaki G, Stevens HE. Correlation of telomere length in brain tissue with peripheral tissues in living human subjects. Front Mol Neurosci 2024; 17:1303974. [PMID: 38516039 PMCID: PMC10954899 DOI: 10.3389/fnmol.2024.1303974] [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: 09/28/2023] [Accepted: 02/26/2024] [Indexed: 03/23/2024] Open
Abstract
Telomeres are important to chromosomal stability, and changes in their length correlate with disease, potentially relevant to brain disorders. Assessing telomere length in human brain is invasive, but whether peripheral tissue telomere length correlates with that in brain is not known. Saliva, buccal, blood, and brain samples were collected at time points before, during, and after subjects undergoing neurosurgery (n = 35) for intractable epilepsy. DNA was isolated from samples and average telomere length assessed by qPCR. Correlations of telomere length between tissue samples were calculated across subjects. When data were stratified by sex, saliva telomere length correlated with brain telomere length in males only. Buccal telomere length correlated with brain telomere length when males and females were combined. These findings indicate that in living subjects, telomere length in peripheral tissues variably correlates with that in brain and may be dependent on sex. Peripheral tissue telomere length may provide insight into brain telomere length, relevant to assessment of brain disorder pathophysiology.
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Affiliation(s)
- Annemarie J. Carver
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA, United States
| | - Benjamin Hing
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Benjamin A. Elser
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA, United States
| | - Stephanie J. Lussier
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Biostatistics Graduate Program, College of Public Health, University of Iowa, Iowa City, IA, United States
| | - Takehiko Yamanashi
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Standford University, Stanford, CA, United States
- Division of Neuropsychiatry, Tottori University, Tottori, Japan
| | - Matthew A. Howard
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Hiroto Kawasaki
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Department of Neurosurgery, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
| | - Gen Shinozaki
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Standford University, Stanford, CA, United States
| | - Hanna E. Stevens
- Department of Psychiatry, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Iowa Neuroscience Institute, Carver College of Medicine, University of Iowa, Iowa City, IA, United States
- Interdisciplinary Graduate Program in Genetics, University of Iowa, Iowa City, IA, United States
- Interdisciplinary Graduate Program in Human Toxicology, University of Iowa, Iowa City, IA, United States
- Hawk-Intellectual and Developmental Disabilities Research Center, University of Iowa, Iowa City, IA, United States
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Mervic A, Goricar K, Blagus T, Franko A, Trebusak-Podkrajsek K, Fikfak MD, Dolzan V, Kovac V. Telomere length and TERT polymorphisms as biomarkers in asbestos-related diseases. Radiol Oncol 2024; 58:87-98. [PMID: 38378028 PMCID: PMC10878767 DOI: 10.2478/raon-2024-0009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Accepted: 09/13/2023] [Indexed: 02/22/2024] Open
Abstract
BACKGROUND Asbestos exposure has been proposed as a risk factor for shorter telomere length. The aim of our study was to investigate whether telomere length in leukocytes and hTERT genetic polymorphisms may serve as potential biomarkers for the risk of developing asbestos-related diseases and as biomarkers of progression and chemotherapy response rate in malignant mesothelioma (MM). SUBJECTS AND METHODS We conducted two retrospective studies. In the first study, a case-control study, telomere length and hTERT polymorphisms were determined in patients with MM, subjects with pleural plaques and controls without the asbestos related disease, who were occupationally exposed to asbestos. In the second study, a longitudinal observational study, telomere length was also determined in samples from MM patients before and after chemotherapy. Telomere length was determined by monochromatic multiplex quantitative polymerase chain reaction (PCR), while competitive allele-specific PCR was used to genotype hTERT rs10069690, rs2736100 and rs2736098. Logistic regression and survival analysis were used in statistical analysis. RESULTS Patients with MM had shorter telomere length than subjects with pleural plaques (p < 0.001). After adjustment for age, rs2736098 CT, and rs10069690 TT and CT+TT genotypes were significantly associated with a higher risk of MM (padj = 0.023; padj = 0.026 and padj = 0.017), while rs2736100 AA and CA+AA genotypes conferred to a lower risk for MM compared to all other subjects (padj = 0.017, and padj = 0.026). Telomere length was not associated with a response to chemotherapy (p > 0.05) or time to disease progression (p > 0.05). Carriers of one or two polymorphic rs10069690 T alleles had a good response to chemotherapy (p = 0.039, and p = 0.048), these associations remained statistically significant after adjustment for age (padj = 0.019; padj = 0.017). Carriers of two polymorphic rs2736100 A alleles had a longer time to disease progression (p = 0.038). CONCLUSIONS Shorter telomere length and hTERT polymorphisms may serve as a biomarker for the risk of developing MM. Additionally, rs10069690 and rs2736100 polymorphisms, but not telomere length, were associated with a chemotherapy response or MM progression.
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Affiliation(s)
- Ana Mervic
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Katja Goricar
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Tanja Blagus
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Alenka Franko
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Clinical Institute of Occupational Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Katarina Trebusak-Podkrajsek
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Clinical Institute for Special Laboratory Diagnostics, University Children’s Hospital, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Metoda Dodic Fikfak
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Clinical Institute of Occupational Medicine, University Medical Centre Ljubljana, Ljubljana, Slovenia
| | - Vita Dolzan
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Institute of Biochemistry and Molecular Genetics, Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
| | - Viljem Kovac
- Faculty of Medicine, University of Ljubljana, Ljubljana, Slovenia
- Institute of Oncology Ljubljana, Ljubljana, Slovenia
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Wang W, Chen C, Wang Q, Ma J, Li Y, Guan Z, Wang R, Chen X. Electroacupuncture pretreatment preserves telomerase reverse transcriptase function and alleviates postoperative cognitive dysfunction by suppressing oxidative stress and neuroinflammation in aged mice. CNS Neurosci Ther 2024; 30:e14373. [PMID: 37501354 PMCID: PMC10848091 DOI: 10.1111/cns.14373] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2023] [Revised: 07/06/2023] [Accepted: 07/09/2023] [Indexed: 07/29/2023] Open
Abstract
BACKGROUND Elderly patients often exhibit postoperative cognitive dysfunction (POCD), a postsurgical decline in memory and executive function. Oxidative stress and neuroinflammation, both pathological characteristics of the aged brain, contribute to this decline. This study posits that electroacupuncture (EA) stimulation, an effective antioxidant and anti-inflammatory modality, may enhance telomerase reverse transcriptase (TERT) function, the catalytic subunit of telomerase known for its protective properties against cellular senescence and oxidative damage, to alleviate POCD in aged mice. METHODS The animal POCD model was created by subjecting aged mice to abdominal surgery, followed by EA pretreatment at the Baihui acupoint (GV20). Postoperative cognitive function was gauged using the Morris water maze (MWM) test. Hippocampal TERT mRNA levels and telomerase activity were determined through qPCR and a Telomerase PCR ELISA kit, respectively. Oxidative stress was assessed through superoxide dismutase (SOD), reactive oxygen species (ROS), and malondialdehyde (MDA) levels. Iba-1 immunostaining determined the quantity of hippocampal microglia. Additionally, western blotting assessed TERT, autophagy markers, and proinflammatory cytokines at the protein level. RESULTS Abdominal surgery in aged mice significantly decreased telomerase activity and TERT mRNA and protein levels, but increased oxidative stress and neuroinflammation and decreased autophagy in the hippocampus. EA-pretreated mice demonstrated improved postoperative cognitive performance, enhanced telomerase activity, increased TERT protein expression, improved TERT mitochondrial localization, and reduced oxidative damage, autophagy dysfunction, and neuroinflammation. The neuroprotective benefits of EA pretreatment were diminished following TERT knockdown. CONCLUSIONS Our findings underscore the significance of TERT function preservation in alleviating surgery-induced oxidative stress and neuroinflammation in aged mice. A novel neuroprotective mechanism of EA stimulation is highlighted, whereby modulation of TERT and telomerase activity reduces oxidative damage and neuroinflammation. Consequently, maintaining TERT function via EA treatment could serve as an effective strategy for managing POCD in elderly patients.
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Affiliation(s)
- Wei Wang
- Department of AnesthesiologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'anShaanxiChina
- Department of AnesthesiologyThe First People's Hospital of FoshanFoshanGuangdongChina
| | - Chen Chen
- Department of Burns and Plastic surgeryHainan Hospital of PLA General HospitalSanyaHainanChina
| | - Qiang Wang
- Department of AnesthesiologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Ji‐Guang Ma
- Department of AnesthesiologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Yan‐Song Li
- Department of AnesthesiologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Zheng Guan
- Department of AnesthesiologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Rui Wang
- Department of AnesthesiologyThe First Affiliated Hospital of Xi'an Jiaotong UniversityXi'an Jiaotong UniversityXi'anShaanxiChina
| | - Xin Chen
- Department of AnesthesiologyThe First People's Hospital of FoshanFoshanGuangdongChina
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Sarandy MM, Gonçalves RV, Valacchi G. Cutaneous Redox Senescence. Biomedicines 2024; 12:348. [PMID: 38397950 PMCID: PMC10886899 DOI: 10.3390/biomedicines12020348] [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: 12/04/2023] [Revised: 01/24/2024] [Accepted: 01/29/2024] [Indexed: 02/25/2024] Open
Abstract
Our current understanding of skin cell senescence involves the role of environmental stressors (UV, O3, cigarette smoke, particulate matter, etc.), lifestyle (diet, exercise, etc.) as well as genetic factors (metabolic changes, hormonal, etc.). The common mechanism of action of these stressors is the disturbance of cellular redox balance characterized by increased free radicals and reactive oxygen species (ROS), and when these overload the intrinsic antioxidant defense system, it can lead to an oxidative stress cellular condition. The main redox mechanisms that activate cellular senescence in the skin involve (1) the oxidative damage of telomeres causing their shortening; (2) the oxidation of proteomes and DNA damage; (3) an a in lysosomal mass through the increased activity of resident enzymes such as senescence-associated β-galactosidase (SA-β-gal) as well as other proteins that are products of lysosomal activity; (4) and the increased expression of SASP, in particular pro-inflammatory cytokines transcriptionally regulated by NF-κB. However, the main targets of ROS on the skin are the proteome (oxi-proteome), followed by telomeres, nucleic acids (DNAs), lipids, proteins, and cytoplasmic organelles. As a result, cell cycle arrest pathways, lipid peroxidation, increased lysosomal content and dysfunctional mitochondria, and SASP synthesis occur. Furthermore, oxidative stress in skin cells increases the activity of p16INK4A and p53 as inhibitors of Rb and CDks, which are important for maintaining the cell cycle. p53 also promotes the inactivation of mTOR-mediated autophagic and apoptotic pathways, leading to senescence. However, these markers alone cannot establish the state of cellular senescence, and multiple analyses are encouraged for confirmation. An updated and more comprehensive approach to investigating skin senescence should include further assays of ox-inflammatory molecular pathways that can consolidate the understanding of cutaneous redox senescence.
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Affiliation(s)
- Mariáurea Matias Sarandy
- Department of Animal Science, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA
- Department of General Biology, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
| | - Reggiani Vilela Gonçalves
- Department of General Biology, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
- Department of Animal Biology, Federal University of Viçosa, Viçosa 36570-900, MG, Brazil
| | - Giuseppe Valacchi
- Department of Animal Science, Plants for Human Health Institute, North Carolina State University, North Carolina Research Campus, 600 Laureate Way, Kannapolis, NC 28081, USA
- Department of Environment and Prevention, University of Ferrara, 44121 Ferrara, Italy
- Department of Food and Nutrition, Kyung Hee University, Seoul 02447, Republic of Korea
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Tire B, Talibova G, Ozturk S. The crosstalk between telomeres and DNA repair mechanisms: an overview to mammalian somatic cells, germ cells, and preimplantation embryos. J Assist Reprod Genet 2024; 41:277-291. [PMID: 38165506 PMCID: PMC10894803 DOI: 10.1007/s10815-023-03008-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024] Open
Abstract
Telomeres are located at the ends of linear chromosomes and play a critical role in maintaining genomic stability by preventing premature activation of DNA repair mechanisms. Because of exposure to various genotoxic agents, telomeres can undergo shortening and genetic changes. In mammalian cells, the basic DNA repair mechanisms, including base excision repair, nucleotide excision repair, double-strand break repair, and mismatch repair, function in repairing potential damages in telomeres. If these damages are not repaired correctly in time, the unfavorable results such as apoptosis, cell cycle arrest, and cancerous transition may occur. During lifespan, mammalian somatic cells, male and female germ cells, and preimplantation embryos experience a number of telomeric damages. Herein, we comprehensively reviewed the crosstalk between telomeres and the DNA repair mechanisms in the somatic cells, germ cells, and embryos. Infertility development resulting from possible defects in this crosstalk is also discussed in the light of existing studies.
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Affiliation(s)
- Betul Tire
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey
| | - Gunel Talibova
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey
| | - Saffet Ozturk
- Department of Histology and Embryology, Akdeniz University School of Medicine, Campus, 07070, Antalya, Turkey.
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Pang Y, Cao L, Ye F, Ma C, Liang X, Song Y, Lu X. Identification of the Maize PP2C Gene Family and Functional Studies on the Role of ZmPP2C15 in Drought Tolerance. PLANTS (BASEL, SWITZERLAND) 2024; 13:340. [PMID: 38337873 PMCID: PMC10856965 DOI: 10.3390/plants13030340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/13/2024] [Accepted: 01/17/2024] [Indexed: 02/12/2024]
Abstract
The protein phosphatase PP2C plays an important role in plant responses to stress. Therefore, the identification of maize PP2C genes that respond to drought stress is particularly important for the improvement and creation of new drought-resistant assortments of maize. In this study, we identified 102 ZmPP2C genes in maize at the genome-wide level. We analyzed the physicochemical properties of 102 ZmPP2Cs and constructed a phylogenetic tree with Arabidopsis. By analyzing the gene structure, conserved protein motifs, and synteny, the ZmPP2Cs were found to be strongly conserved during evolution. Sixteen core genes involved in drought stress and rewatering were screened using gene co-expression network mapping and expression profiling. The qRT-PCR results showed 16 genes were induced by abscisic acid (ABA), drought, and NaCl treatments. Notably, ZmPP2C15 exhibited a substantial expression difference. Through genetic transformation, we overexpressed ZmPP2C15 and generated the CRISPR/Cas9 knockout maize mutant zmpp2c15. Overexpressing ZmPP2C15 in Arabidopsis under drought stress enhanced growth and survival compared with WT plants. The leaves exhibited heightened superoxide dismutase (SOD), peroxidase (POD), ascorbate peroxidase (APX), and catalase (CAT) activities, elevated proline (Pro) content, and reduced malondialdehyde (MDA) content. Conversely, zmpp2c15 mutant plants displayed severe leaf dryness, curling, and wilting under drought stress. Their leaf activities of SOD, POD, APX, and CAT were lower than those in B104, while MDA was higher. This suggests that ZmPP2C15 positively regulates drought tolerance in maize by affecting the antioxidant enzyme activity and osmoregulatory substance content. Subcellular localization revealed that ZmPP2C15 was localized in the nucleus and cytoplasm. Yeast two-hybrid (Y2H) and bimolecular fluorescence complementation (BiFC) experiments demonstrated ZmPP2C15's interaction with ZmWIN1, ZmADT2, ZmsodC, Zmcab, and ZmLHC2. These findings establish a foundation for understanding maize PP2C gene functions, offering genetic resources and insights for molecular design breeding for drought tolerance.
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Affiliation(s)
- Yunyun Pang
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- School of Agricultural Sciences, Zhengzhou University, Zhengzhou 450002, China
| | - Liru Cao
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Feiyu Ye
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Chenchen Ma
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Xiaohan Liang
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
| | - Yinghui Song
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
| | - Xiaomin Lu
- Grain Crops Research Institute, Henan Academy of Agricultural Sciences, Postgraduate T&R Base of Zhengzhou University, Zhengzhou 450002, China; (Y.P.); (L.C.); (F.Y.); (C.M.); (X.L.); (Y.S.)
- The Shennong Laboratory, Zhengzhou 450002, China
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Dhillon VS, Shahid M, Deo P, Fenech M. Reduced SIRT1 and SIRT3 and Lower Antioxidant Capacity of Seminal Plasma Is Associated with Shorter Sperm Telomere Length in Oligospermic Men. Int J Mol Sci 2024; 25:718. [PMID: 38255792 PMCID: PMC10815409 DOI: 10.3390/ijms25020718] [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: 11/24/2023] [Revised: 12/28/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024] Open
Abstract
Infertility affects millions of couples worldwide and has a profound impact not only on their families, but also on communities. Telomere attrition has been associated with infertility, DNA damage and fragmentation. Oxidative stress has been shown to affect sperm DNA integrity and telomere length. Sirtuins such as SIRT1 and SIRT3 are involved in aging and oxidative stress response. The aim of the present study is to determine the role of SIRT1 and SIRT3 in regulating oxidative stress, telomere shortening, and their association with oligospermia. Therefore, we assessed the protein levels of SIRT1 and SIRT3, total antioxidant capacity (TAC), superoxide dismutase (SOD), malondialdehyde (MDA) and catalase activity (CAT) in the seminal plasma of 272 patients with oligospermia and 251 fertile men. We also measured sperm telomere length (STL) and leukocyte telomere length (LTL) using a standard real-time quantitative PCR assay. Sperm chromatin and protamine deficiency were also measured as per standard methods. Our results for oligospermic patients demonstrate significant reductions in semen parameters, shorter STL and LTL, lower levels of SOD, TAC, CAT, SIRT1 and SIRT3 levels, and also significant protamine deficiency and higher levels of MDA and DNA fragmentation. We conclude that a shorter TL in sperms and leukocytes is associated with increased oxidative stress that also accounts for high levels of DNA fragmentation in sperms. Our results support the hypothesis that various sperm parameters in the state of oligospermia are associated with or caused by reduced levels of SIRT1 and SIRT3 proteins.
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Affiliation(s)
- Varinderpal S. Dhillon
- Health and Biomedical Innovation, UniSA Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (P.D.); (M.F.)
| | - Mohammad Shahid
- Department of Basic Medical Sciences, College of Medicine, Prince Sattam bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia;
| | - Permal Deo
- Health and Biomedical Innovation, UniSA Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (P.D.); (M.F.)
| | - Michael Fenech
- Health and Biomedical Innovation, UniSA Clinical and Health Sciences, University of South Australia, Adelaide 5000, Australia; (P.D.); (M.F.)
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Qi Z, Lu P, Long X, Cao X, Wu M, Xin K, Xue T, Gao X, Huang Y, Wang Q, Jiang C, Xu JR, Liu H. Adaptive advantages of restorative RNA editing in fungi for resolving survival-reproduction trade-offs. SCIENCE ADVANCES 2024; 10:eadk6130. [PMID: 38181075 PMCID: PMC10776026 DOI: 10.1126/sciadv.adk6130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Accepted: 12/05/2023] [Indexed: 01/07/2024]
Abstract
RNA editing in various organisms commonly restores RNA sequences to their ancestral state, but its adaptive advantages are debated. In fungi, restorative editing corrects premature stop codons in pseudogenes specifically during sexual reproduction. We characterized 71 pseudogenes and their restorative editing in Fusarium graminearum, demonstrating that restorative editing of 16 pseudogenes is crucial for germ tissue development in fruiting bodies. Our results also revealed that the emergence of premature stop codons is facilitated by restorative editing and that premature stop codons corrected by restorative editing are selectively favored over ancestral amino acid codons. Furthermore, we found that ancestral versions of pseudogenes have antagonistic effects on reproduction and survival. Restorative editing eliminates the survival costs of reproduction caused by antagonistic pleiotropy and provides a selective advantage in fungi. Our findings highlight the importance of restorative editing in the evolution of fungal complex multicellularity and provide empirical evidence that restorative editing serves as an adaptive mechanism enabling the resolution of genetic trade-offs.
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Affiliation(s)
- Zhaomei Qi
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ping Lu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinyuan Long
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinyu Cao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mengchun Wu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Kaiyun Xin
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Tuan Xue
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xinlong Gao
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yi Huang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Qinhu Wang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cong Jiang
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Jin-Rong Xu
- Department of Botany and Plant Pathology, Purdue University, West Lafayette, IN 47907, USA
| | - Huiquan Liu
- State Key Laboratory for Crop Stress Resistance and High-Efficiency Production, College of Plant Protection, Northwest A&F University, Yangling, Shaanxi 712100, China
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