1
|
Farina MP, Klopack ET, Umberson D, Crimmins EM. The embodiment of parental death in early life through accelerated epigenetic aging: Implications for understanding how parental death before 18 shapes age-related health risk among older adults. SSM Popul Health 2024; 26:101648. [PMID: 38596364 PMCID: PMC11002886 DOI: 10.1016/j.ssmph.2024.101648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 02/25/2024] [Accepted: 02/27/2024] [Indexed: 04/11/2024] Open
Abstract
Parental death in early life has been linked to various adverse health outcomes in older adulthood. This study extends prior research to evaluate how parental death in early life is tied to accelerated epigenetic aging, a potentially important biological mechanism from which social and environmental exposures impact age-related health. We used data from the 2016 Venous Blood Study (VBS), a component of the Health and Retirement Study (HRS), to examine the association between parental death in early life and accelerated epigenetic aging as measured by three widely used epigenetic clocks (PCPhenoAge, PCGrimAge, and DunedinPACE). We also assessed whether some of the association is explained by differences in educational attainment, depressive symptoms, and smoking behavior. Methods included a series of linear regression models and formal mediation analysis. Findings indicated that parental death in early life is associated with accelerated epigenetic aging for PCPhenoAge and DunedinPACE. The inclusion of educational attainment, depressive symptoms, and smoking behavior attenuated this association, with formal mediation analysis providing additional support for these observations. Parental death in early life may be one of the most difficult experiences an individual may face. The elevated biological risk associated with parental death in early life may operate through immediate changes but also through more downstream risk factors. This study highlights how early life adversity can set in motion biological changes that have lifelong consequences.
Collapse
Affiliation(s)
- Mateo P. Farina
- Department of Human Development and Family Sciences, University of Texas at Austin, United States
- Population Research Center, University of Texas at Austin, United States
| | - Eric T. Klopack
- Davis School of Gerontology, University of Southern California, United States
| | - Debra Umberson
- Population Research Center, University of Texas at Austin, United States
- Department of Sociology, University of Texas at Austin, United States
| | - Eileen M. Crimmins
- Davis School of Gerontology, University of Southern California, United States
| |
Collapse
|
2
|
Chebly A, Khalil C, Kuzyk A, Beylot-Barry M, Chevret E. T-cell lymphocytes' aging clock: telomeres, telomerase and aging. Biogerontology 2024; 25:279-288. [PMID: 37917220 DOI: 10.1007/s10522-023-10075-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/13/2023] [Indexed: 11/04/2023]
Abstract
Aging is the decline of physiological capabilities required for life maintenance and reproduction over time. The human immune cells, including T-cells lymphocytes, undergo dramatic aging-related changes, including those related to telomeres and telomerase. It was demonstrated that telomeres and telomerase play crucial roles in T-cell differentiation, aging, and diseases, including a well-documented link between short telomeres and telomerase activation demonstrated in several T-cells malignancies. Herein, we provide a comprehensive review of the literature regarding T-cells' telomeres and telomerase in health and age related-diseases.
Collapse
Affiliation(s)
- Alain Chebly
- Jacques Loiselet Center for Medical Genetics and Genomics (CGGM), Faculty of Medicine, Saint Joseph University, Beirut, Lebanon.
- Higher Institute of Public Health, Saint Joseph University, Beirut, Lebanon.
| | - Charbel Khalil
- Reviva Stem Cell Platform for Research and Applications Center, Bsalim, Lebanon
- Bone Marrow Transplant Unit, Burjeel Medical City, Abu Dhabi, United Arab Emirates
- Lebanese American University School of Medicine, Beirut, Lebanon
| | - Alexandra Kuzyk
- Division of Dermatology, Department of Internal Medicine, University of Calgary, Calgary, AB, Canada
| | - Marie Beylot-Barry
- Dermatology Department, Bordeaux University Hospital, Bordeaux, France
- Univ. Bordeaux, INSERM, BRIC, U1312, 33000, Bordeaux, France
| | - Edith Chevret
- Univ. Bordeaux, INSERM, BRIC, U1312, 33000, Bordeaux, France
| |
Collapse
|
3
|
Ruprecht NA, Singhal S, Sens D, Singhal SK. Translating genetic findings to epigenetics: identifying the mechanisms associated with aging after high-radiation exposure on earth and in space. Front Public Health 2024; 12:1333222. [PMID: 38584916 PMCID: PMC10995328 DOI: 10.3389/fpubh.2024.1333222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/27/2024] [Indexed: 04/09/2024] Open
Abstract
Purpose Exposure to radiation is a health concern within and beyond the Earth's atmosphere for aircrew and astronauts in their respective austere environments. The biological effects of radiation exposure from a multiomics standpoint are relatively unexplored and stand to shed light on tailored monitoring and treatment for those in these career fields. To establish a reference variable for genetic damage, biological age seems to be closely associated with the effect of radiation. Following a genetic-based study, this study explores the epigenetic landscape of radiation exposure along with its associative effects on aging processes. Methods We imported the results of the genetics-based study that was a secondary analysis of five publicly available datasets (noted as Data1). The overlap of these genes with new data involving methylation data from two datasets (noted as Data2) following similar secondary analysis procedures is the basis of this study. We performed the standard statistical analysis on these datasets along with supervised and unsupervised learning to create preranked gene lists used for functional analysis in Ingenuity Pathway Analysis (IPA). Results There were 664 genes of interest from Data1 and 577 genes from Data2. There were 40 statistically significant methylation probes within 500 base pairs of the gene's transcription start site and 10 probes within 100 base pairs, which are discussed in depth. IPA yielded 21 significant pathways involving metabolism, cellular development, cell death, and diseases. Compared to gold standards for gestational age, we observed relatively low error and standard deviation using newly identified biomarkers. Conclusion We have identified 17 methylated genes that exhibited particular interest and potential in future studies. This study suggests that there are common trends in oxidative stress, cell development, and metabolism that indicate an association between aging processes and the effects of ionizing radiation exposure.
Collapse
Affiliation(s)
- Nathan A. Ruprecht
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND, United States
| | - Sonalika Singhal
- Department of Pathology, University of North Dakota, Grand Forks, ND, United States
| | - Donald Sens
- Department of Pathology, University of North Dakota, Grand Forks, ND, United States
| | - Sandeep K. Singhal
- Department of Biomedical Engineering, University of North Dakota, Grand Forks, ND, United States
- Department of Pathology, University of North Dakota, Grand Forks, ND, United States
| |
Collapse
|
4
|
Sichani AS, Khoddam S, Shakeri S, Tavakkoli Z, Jafroodi AR, Dabbaghipour R, Sisakht M, Fallahi J. Partial Reprogramming as a Method for Regenerating Neural Tissues in Aged Organisms. Cell Reprogram 2024; 26:10-23. [PMID: 38381402 DOI: 10.1089/cell.2023.0123] [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] [Indexed: 02/22/2024] Open
Abstract
Aging causes numerous age-related diseases, leading the human species to death. Nevertheless, rejuvenating strategies based on cell epigenetic modifications are a possible approach to counteract disease progression while getting old. Cell reprogramming of adult somatic cells toward pluripotency ought to be a promising tool for age-related diseases. However, researchers do not have control over this process as cells lose their fate, and cause potential cancerous cells or unexpected cell phenotypes. Direct and partial reprogramming were introduced in recent years with distinctive applications. Although direct reprogramming makes cells lose their identity, it has various applications in regeneration medicine. Temporary and regulated in vivo overexpression of Yamanaka factors has been shown in several experimental contexts to be achievable and is used to rejuvenate mice models. This regeneration can be accomplished by altering the epigenetic adult cell signature to the signature of a younger cell. The greatest advantage of partial reprogramming is that this method does not allow cells to lose their identity when they are resetting their epigenetic clock. It is a regimen of short-term Oct3/4, Sox2, Klf4, and c-Myc expression in vivo that prevents full reprogramming to the pluripotent state and avoids both tumorigenesis and the presence of unwanted undifferentiated cells. We know that many neurological age-related diseases, such as Alzheimer's disease, stroke, dementia, and Parkinson's disease, are the main cause of death in the last decades of life. Therefore, scientists have a special tendency regarding neuroregeneration methods to increase human life expectancy.
Collapse
Affiliation(s)
- Ali Saber Sichani
- Department of Biology, Texas A&M University, College Station, Texas, USA
| | - Somayeh Khoddam
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shayan Shakeri
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Tavakkoli
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Arad Ranji Jafroodi
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Reza Dabbaghipour
- Department of Medical Genetics, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohsen Sisakht
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Jafar Fallahi
- Department of Molecular Medicine, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| |
Collapse
|
5
|
Lozupone M, Solfrizzi V, Sardone R, Dibello V, Castellana F, Zupo R, Lampignano L, Bortone I, Daniele A, Panza F. The epigenetics of frailty. Epigenomics 2024; 16:189-202. [PMID: 38112012 DOI: 10.2217/epi-2023-0279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023] Open
Abstract
The conceptual change of frailty, from a physical to a biopsychosocial phenotype, expanded the field of frailty, including social and behavioral domains with critical interaction between different frailty models. Environmental exposures - including physical exercise, psychosocial factors and diet - may play a role in the frailty pathophysiology. Complex underlying mechanisms involve the progressive interactions of genetics with epigenetics and of multimorbidity with environmental factors. Here we review the literature on possible mechanisms explaining the association between epigenetic hallmarks (i.e., global DNA methylation, DNA methylation age acceleration and microRNAs) and frailty, considered as biomarkers of aging. Frailty could be considered the result of environmental epigenetic factors on biological aging, caused by conflicting DNA methylation age and chronological age.
Collapse
Affiliation(s)
- Madia Lozupone
- Department of Translational Biomedicine & Neuroscience 'DiBraiN', University of Bari Aldo Moro, Bari, Italy
| | - Vincenzo Solfrizzi
- Cesare Frugoni Internal & Geriatric Medicine & Memory Unit, University of Bari Aldo Moro, Bari, Italy
| | | | - Vittorio Dibello
- Cesare Frugoni Internal & Geriatric Medicine & Memory Unit, University of Bari Aldo Moro, Bari, Italy
- Department of Orofacial Pain & Dysfunction, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam & Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Fabio Castellana
- Cesare Frugoni Internal & Geriatric Medicine & Memory Unit, University of Bari Aldo Moro, Bari, Italy
| | - Roberta Zupo
- Cesare Frugoni Internal & Geriatric Medicine & Memory Unit, University of Bari Aldo Moro, Bari, Italy
| | | | - Ilaria Bortone
- Department of Translational Biomedicine & Neuroscience 'DiBraiN', University of Bari Aldo Moro, Bari, Italy
| | - Antonio Daniele
- Department of Neuroscience, Catholic University of Sacred Heart, Rome, Italy
- Neurology Unit, IRCCS Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - Francesco Panza
- Cesare Frugoni Internal & Geriatric Medicine & Memory Unit, University of Bari Aldo Moro, Bari, Italy
| |
Collapse
|
6
|
Tenchov R, Sasso JM, Wang X, Zhou QA. Aging Hallmarks and Progression and Age-Related Diseases: A Landscape View of Research Advancement. ACS Chem Neurosci 2024; 15:1-30. [PMID: 38095562 PMCID: PMC10767750 DOI: 10.1021/acschemneuro.3c00531] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/15/2023] [Accepted: 11/16/2023] [Indexed: 01/04/2024] Open
Abstract
Aging is a dynamic, time-dependent process that is characterized by a gradual accumulation of cell damage. Continual functional decline in the intrinsic ability of living organisms to accurately regulate homeostasis leads to increased susceptibility and vulnerability to diseases. Many efforts have been put forth to understand and prevent the effects of aging. Thus, the major cellular and molecular hallmarks of aging have been identified, and their relationships to age-related diseases and malfunctions have been explored. Here, we use data from the CAS Content Collection to analyze the publication landscape of recent aging-related research. We review the advances in knowledge and delineate trends in research advancements on aging factors and attributes across time and geography. We also review the current concepts related to the major aging hallmarks on the molecular, cellular, and organismic level, age-associated diseases, with attention to brain aging and brain health, as well as the major biochemical processes associated with aging. Major age-related diseases have been outlined, and their correlations with the major aging features and attributes are explored. We hope this review will be helpful for apprehending the current knowledge in the field of aging mechanisms and progression, in an effort to further solve the remaining challenges and fulfill its potential.
Collapse
Affiliation(s)
- Rumiana Tenchov
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Janet M. Sasso
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Xinmei Wang
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| | - Qiongqiong Angela Zhou
- CAS, a Division of the American Chemical
Society, 2540 Olentangy River Road, Columbus, Ohio 43202, United States
| |
Collapse
|
7
|
Ma Y, Wang S, Wang H, Chen X, Shuai Y, Wang H, Mao Y, He F. Mesenchymal stem cells and dental implant osseointegration during aging: from mechanisms to therapy. Stem Cell Res Ther 2023; 14:382. [PMID: 38124153 PMCID: PMC10734190 DOI: 10.1186/s13287-023-03611-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 12/07/2023] [Indexed: 12/23/2023] Open
Abstract
Dental implants are widely used to replace missing teeth, providing patients with unparalleled levels of effectiveness, convenience, and affordability. The biological basis for the clinical success of dental implants is osseointegration. Bone aging is a high-risk factor for the reduced osseointegration and survival rates of dental implants. In aged individuals, mesenchymal stem cells (MSCs) in the bone marrow show imbalanced differentiation with a reduction in osteogenesis and an increase in adipogenesis. This leads to impaired osseointegration and implant failure. This review focuses on the molecular mechanisms underlying the dysfunctional differentiation of aged MSCs, which primarily include autophagy, transcription factors, extracellular vesicle secretion, signaling pathways, epigenetic modifications, microRNAs, and oxidative stress. Furthermore, this review addresses the pathological changes in MSCs that affect osseointegration and discusses potential therapeutic interventions to enhance osseointegration by manipulating the mechanisms underlying MSC aging.
Collapse
Affiliation(s)
- Yang Ma
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Siyuan Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Hui Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Xiaoyu Chen
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China
| | - Yi Shuai
- Nanjing Jinling Hospital: East Region Military Command General Hospital, Nanjing, China
| | - Huiming Wang
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China.
| | - Yingjie Mao
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China.
| | - Fuming He
- Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Zhejiang Provincial Clinical Research Center for Oral Diseases, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, China.
| |
Collapse
|
8
|
Luo X, Ruan Z, Liu L. Causal relationship between depression and aging: a bidirectional two-sample Mendelian randomization study. Aging Clin Exp Res 2023; 35:3179-3187. [PMID: 37999829 DOI: 10.1007/s40520-023-02596-4] [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: 10/16/2023] [Indexed: 11/25/2023]
Abstract
BACKGROUND The causal relationship and the direction of the effect between depression and aging remain controversial. METHODS We used a bidirectional two-sample Mendelian randomization analysis to examine the relationship between depression and age proxy indicators. We obtained pooled statistics from genome-wide association studies (GWAS) on depression and the age proxy indicators. We employed five MR analysis methods to address potential biases and ensure robustness of our results, with the inverse variance weighted (IVW) method being the primary outcome. We also conducted outlier exclusion using Radial MR, MRPRESSO, and MR Steiger filters. Additionally, sensitivity analyses were performed to assess heterogeneity and pleiotropy. RESULTS Our MR analysis revealed that depression causally leads to shortened telomere length (β = - 0.014; P = 0.038), increased frailty index (β = 0.076; P = 0.000), and accelerated GrimAge (β = 0.249; P = 0.024). Furthermore, our findings showed that the frailty index (OR = 1.679; P = 0.001) was causally associated with an increased risk of depression. Additionally, we found that appendicular lean mass (OR = 0.929; P = 0.000) and left-hand grip strength (OR = 0.836; P = 0.014) were causally associated with a reduced risk of depression. Sensitivity analyses demonstrated the robustness of our findings. CONCLUSIONS Our study provides evidence that depression contributes to the accelerated aging process, resulting in decreased telomere length, increased frailty index, and accelerated GrimAge. Additionally, we found that the frailty index increases the risk of depression, while appendicular lean mass and left-handed grip strength reduce the risk of depression.
Collapse
Affiliation(s)
- Xinxin Luo
- Jiangxi Provincial People's Hospital and The First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Zhichao Ruan
- Beijing University of Chinese Medicine, Beijing, China
| | - Ling Liu
- Jiangxi Provincial People's Hospital and The First Affiliated Hospital of Nanchang Medical College, Nanchang, China.
| |
Collapse
|
9
|
Kołodziej-Wojnar P, Borkowska J, Domaszewska-Szostek A, Bujanowska O, Noszczyk B, Krześniak N, Stańczyk M, Puzianowska-Kuznicka M. Ten-Eleven Translocation 1 and 2 Enzymes Affect Human Skin Fibroblasts in an Age-Related Manner. Biomedicines 2023; 11:1659. [PMID: 37371754 DOI: 10.3390/biomedicines11061659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 06/01/2023] [Accepted: 06/06/2023] [Indexed: 06/29/2023] Open
Abstract
Ten-eleven translocation (TET) enzymes catalyze the oxidation of 5-methylcytosine (5mC), first to 5-hydroxymethylcytosine (5hmC), then to 5-formylcytosine (5fC), and finally to 5-carboxycytosine (5caC). Evidence suggests that changes in TET expression may impact cell function and the phenotype of aging. Proliferation, apoptosis, markers of autophagy and double-strand DNA break repair, and the expression of Fibulin 5 were assessed by flow cytometry in TET1 and TET2-overexpressing fibroblasts isolated from sun-unexposed skin of young (23-35 years) and age-advanced (75-94 years) individuals. In cells derived from young individuals, TET1 overexpression resulted in the inhibition of proliferation and apoptosis by 37% (p = 0.03) and 24% (p = 0.05), respectively, while the overexpression of TET2 caused a decrease in proliferation by 46% (p = 0.01). Notably, in cells obtained from age-advanced individuals, TETs exhibited different effects. Specifically, TET1 inhibited proliferation and expression of autophagy marker Beclin 1 by 45% (p = 0.05) and 28% (p = 0.048), respectively, while increasing the level of γH2AX, a marker of double-strand DNA breaks necessary for initiating the repair process, by 19% (p = 0.04). TET2 inhibited proliferation by 64% (p = 0.053) and increased the level of γH2AX and Fibulin 5 by 46% (p = 0.007) and 29% (p = 0.04), respectively. These patterns of TET1 and TET2 effects suggest their involvement in regulating various fibroblast functions and that some of their biological actions depend on the donor's age.
Collapse
Affiliation(s)
- Paulina Kołodziej-Wojnar
- Department of Geriatrics and Gerontology, Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
- Department of Human Epigenetics, Mossakowski Medical Research Institute, PAS, 02-106 Warsaw, Poland
| | - Joanna Borkowska
- Department of Human Epigenetics, Mossakowski Medical Research Institute, PAS, 02-106 Warsaw, Poland
| | - Anna Domaszewska-Szostek
- Department of Human Epigenetics, Mossakowski Medical Research Institute, PAS, 02-106 Warsaw, Poland
| | - Olga Bujanowska
- Department of Human Epigenetics, Mossakowski Medical Research Institute, PAS, 02-106 Warsaw, Poland
| | - Bartłomiej Noszczyk
- Department of Plastic Surgery, Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
| | - Natalia Krześniak
- Department of Plastic Surgery, Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
| | - Marek Stańczyk
- Department of General and Oncological Surgery with Traumatic Unit, Wolski Hospital, 01-211 Warsaw, Poland
- Faculty of Medicine, Lazarski University, 02-662 Warsaw, Poland
| | - Monika Puzianowska-Kuznicka
- Department of Geriatrics and Gerontology, Medical Centre of Postgraduate Education, 01-813 Warsaw, Poland
- Department of Human Epigenetics, Mossakowski Medical Research Institute, PAS, 02-106 Warsaw, Poland
| |
Collapse
|
10
|
Milicic L, Porter T, Vacher M, Laws SM. Utility of DNA Methylation as a Biomarker in Aging and Alzheimer's Disease. J Alzheimers Dis Rep 2023; 7:475-503. [PMID: 37313495 PMCID: PMC10259073 DOI: 10.3233/adr-220109] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 04/23/2023] [Indexed: 06/15/2023] Open
Abstract
Epigenetic mechanisms such as DNA methylation have been implicated in a number of diseases including cancer, heart disease, autoimmune disorders, and neurodegenerative diseases. While it is recognized that DNA methylation is tissue-specific, a limitation for many studies is the ability to sample the tissue of interest, which is why there is a need for a proxy tissue such as blood, that is reflective of the methylation state of the target tissue. In the last decade, DNA methylation has been utilized in the design of epigenetic clocks, which aim to predict an individual's biological age based on an algorithmically defined set of CpGs. A number of studies have found associations between disease and/or disease risk with increased biological age, adding weight to the theory of increased biological age being linked with disease processes. Hence, this review takes a closer look at the utility of DNA methylation as a biomarker in aging and disease, with a particular focus on Alzheimer's disease.
Collapse
Affiliation(s)
- Lidija Milicic
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia, Australia
- Collaborative Genomics and Translation Group, Edith Cowan University, Joondalup, Western Australia, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
| | - Tenielle Porter
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia, Australia
- Collaborative Genomics and Translation Group, Edith Cowan University, Joondalup, Western Australia, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
- Curtin Medical School, Curtin University, Bentley, Western Australia, Australia
| | - Michael Vacher
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia, Australia
- CSIRO Health and Biosecurity, Australian e-Health Research Centre, Floreat, Western Australia
| | - Simon M. Laws
- Centre for Precision Health, Edith Cowan University, Joondalup, Western Australia, Australia
- Collaborative Genomics and Translation Group, Edith Cowan University, Joondalup, Western Australia, Australia
- School of Medical and Health Sciences, Edith Cowan University, Joondalup, Western Australia, Australia
- Curtin Medical School, Curtin University, Bentley, Western Australia, Australia
| |
Collapse
|
11
|
Kim HS, Jang S, Kim J. Genome-Wide Integrative Transcriptional Profiling Identifies Age-Associated Signatures in Dogs. Genes (Basel) 2023; 14:1131. [PMID: 37372311 DOI: 10.3390/genes14061131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 06/29/2023] Open
Abstract
Mammals experience similar stages of embryonic development, birth, infancy, youth, adolescence, maturity, and senescence. While embryonic developmental processes have been extensively researched, many molecular mechanisms regulating the different life stages after birth, such as aging, remain unresolved. We investigated the conserved and global molecular transitions in transcriptional remodeling with age in dogs of 15 breeds, which revealed that genes underlying hormone level regulation and developmental programs were differentially regulated during aging. Subsequently, we show that the candidate genes associated with tumorigenesis also exhibit age-dependent DNA methylation patterns, which might have contributed to the tumor state through inhibiting the plasticity of cell differentiation processes during aging, and ultimately suggesting the molecular events that link the processes of aging and cancer. These results highlight that the rate of age-related transcriptional remodeling is influenced not only by the lifespan, but also by the timing of critical physiological milestones.
Collapse
Affiliation(s)
- Hyun Seung Kim
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of Korea
- Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Subin Jang
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of Korea
- Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| | - Jaemin Kim
- Division of Applied Life Science (BK21 Four), Gyeongsang National University, Jinju 52828, Republic of Korea
- Institute of Agriculture and Life Sciences, Gyeongsang National University, Jinju 52828, Republic of Korea
| |
Collapse
|
12
|
Ortiz GGR, Mohammadi Y, Nazari A, Ataeinaeini M, Kazemi P, Yasamineh S, Al-Naqeeb BZT, Zaidan HK, Gholizadeh O. A state-of-the-art review on the MicroRNAs roles in hematopoietic stem cell aging and longevity. Cell Commun Signal 2023; 21:85. [PMID: 37095512 PMCID: PMC10123996 DOI: 10.1186/s12964-023-01117-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/25/2023] [Indexed: 04/26/2023] Open
Abstract
Aging is a biological process determined through time-related cellular and functional impairments, leading to a decreased standard of living for the organism. Recently, there has been an unprecedented advance in the aging investigation, especially the detection that the rate of senescence is at least somewhat regulated via evolutionarily preserved genetic pathways and biological processes. Hematopoietic stem cells (HSCs) maintain blood generation over the whole lifetime of an organism. The senescence process influences many of the natural features of HSC, leading to a decline in their capabilities, independently of their microenvironment. New studies show that HSCs are sensitive to age-dependent stress and gradually lose their self-renewal and regeneration potential with senescence. MicroRNAs (miRNAs) are short, non-coding RNAs that post-transcriptionally inhibit translation or stimulate target mRNA cleavage of target transcripts via the sequence-particular connection. MiRNAs control various biological pathways and processes, such as senescence. Several miRNAs are differentially expressed in senescence, producing concern about their use as moderators of the senescence process. MiRNAs play an important role in the control of HSCs and can also modulate processes associated with tissue senescence in specific cell types. In this review, we display the contribution of age-dependent alterations, including DNA damage, epigenetic landscape, metabolism, and extrinsic factors, which affect HSCs function during aging. In addition, we investigate the particular miRNAs regulating HSCs senescence and age-associated diseases. Video Abstract.
Collapse
Affiliation(s)
- Geovanny Genaro Reivan Ortiz
- Laboratory of Basic Psychology, Behavioral Analysis and Programmatic Development (PAD-LAB), Catholic University of Cuenca, Cuenca, Ecuador
| | - Yasaman Mohammadi
- Faculty of Dentistry, Islamic Azad University, Shiraz Branch, Shiraz, Iran
| | - Ahmad Nazari
- Tehran University of Medical Sciences, Tehran, Iran
| | | | - Parisa Kazemi
- Faculty of Dentistry, Ilam University of Medical Sciences, Ilam, Iran
| | - Saman Yasamineh
- Stem Cell Research Center at, Tabriz University of Medical Sciences, Tabriz, Iran.
| | | | - Haider Kamil Zaidan
- Department of Medical Laboratories Techniques, Al-Mustaqbal University College, Hillah, Babylon, Iraq
| | - Omid Gholizadeh
- Research Center for Clinical Virology, Tehran University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
13
|
Welsh H, Batalha CMPF, Li W, Mpye KL, Souza-Pinto NC, Naslavsky MS, Parra EJ. A systematic evaluation of normalization methods and probe replicability using infinium EPIC methylation data. Clin Epigenetics 2023; 15:41. [PMID: 36906598 PMCID: PMC10008016 DOI: 10.1186/s13148-023-01459-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: 10/10/2022] [Accepted: 02/24/2023] [Indexed: 03/13/2023] Open
Abstract
BACKGROUND The Infinium EPIC array measures the methylation status of > 850,000 CpG sites. The EPIC BeadChip uses a two-array design: Infinium Type I and Type II probes. These probe types exhibit different technical characteristics which may confound analyses. Numerous normalization and pre-processing methods have been developed to reduce probe type bias as well as other issues such as background and dye bias. METHODS This study evaluates the performance of various normalization methods using 16 replicated samples and three metrics: absolute beta-value difference, overlap of non-replicated CpGs between replicate pairs, and effect on beta-value distributions. Additionally, we carried out Pearson's correlation and intraclass correlation coefficient (ICC) analyses using both raw and SeSAMe 2 normalized data. RESULTS The method we define as SeSAMe 2, which consists of the application of the regular SeSAMe pipeline with an additional round of QC, pOOBAH masking, was found to be the best performing normalization method, while quantile-based methods were found to be the worst performing methods. Whole-array Pearson's correlations were found to be high. However, in agreement with previous studies, a substantial proportion of the probes on the EPIC array showed poor reproducibility (ICC < 0.50). The majority of poor performing probes have beta values close to either 0 or 1, and relatively low standard deviations. These results suggest that probe reliability is largely the result of limited biological variation rather than technical measurement variation. Importantly, normalizing the data with SeSAMe 2 dramatically improved ICC estimates, with the proportion of probes with ICC values > 0.50 increasing from 45.18% (raw data) to 61.35% (SeSAMe 2).
Collapse
Affiliation(s)
- H Welsh
- Department of Anthropology, University of Toronto at Mississauga, Mississauga, Canada.
| | - C M P F Batalha
- Department of Biochemistry, University of São Paulo, São Paulo, Brazil
| | - W Li
- The Centre for Applied Genomics, Hospital for Sick Children, Toronto, Canada
| | - K L Mpye
- Department of Anthropology, University of Toronto at Mississauga, Mississauga, Canada
| | - N C Souza-Pinto
- Department of Biochemistry, University of São Paulo, São Paulo, Brazil
| | - M S Naslavsky
- Department of Genetics and Evolutionary Biology, University of São Paulo, São Paulo, Brazil
| | - E J Parra
- Department of Anthropology, University of Toronto at Mississauga, Mississauga, Canada
| |
Collapse
|
14
|
Yazar V, Dawson VL, Dawson TM, Kang SU. DNA Methylation Signature of Aging: Potential Impact on the Pathogenesis of Parkinson's Disease. JOURNAL OF PARKINSON'S DISEASE 2023; 13:145-164. [PMID: 36710687 PMCID: PMC10041453 DOI: 10.3233/jpd-223517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Regulation of gene expression by epigenetic modifications means lasting and heritable changes in the function of genes without alterations in the DNA sequence. Of all epigenetic mechanisms identified thus far, DNA methylation has been of particular interest in both aging and age-related disease research over the last decade given the consistency of site-specific DNA methylation changes during aging that can predict future health and lifespan. An increasing line of evidence has implied the dynamic nature of DNA (de)methylation events that occur throughout the lifespan has a role in the pathophysiology of aging and age-associated neurodegenerative conditions, including Parkinson's disease (PD). In this regard, PD methylome shows, to some extent, similar genome-wide changes observed in the methylome of healthy individuals of matching age. In this review, we start by providing a brief overview of studies outlining global patterns of DNA methylation, then its mechanisms and regulation, within the context of aging and PD. Considering diverging lines of evidence from different experimental and animal models of neurodegeneration and how they combine to shape our current understanding of tissue-specific changes in DNA methylome in health and disease, we report a high-level comparison of the genomic methylation landscapes of brain, with an emphasis on dopaminergic neurons in PD and in natural aging. We believe this will be particularly useful for systematically dissecting overlapping genome-wide alterations in DNA methylation during PD and healthy aging, and for improving our knowledge of PD-specific changes in methylation patterns independent of aging process.
Collapse
Affiliation(s)
- Volkan Yazar
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Valina L Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Physiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Adrienne Helis Malvin Medical Research Foundation, New Orleans, LA, USA
- Diana Helis Henry Medical Research Foundation, New Orleans, LA, USA
| | - Ted M Dawson
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Department of Pharmacology and and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Adrienne Helis Malvin Medical Research Foundation, New Orleans, LA, USA
- Diana Helis Henry Medical Research Foundation, New Orleans, LA, USA
| | - Sung-Ung Kang
- Neuroregeneration and Stem Cell Programs, Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| |
Collapse
|
15
|
Al-Azab M, Safi M, Idiiatullina E, Al-Shaebi F, Zaky MY. Aging of mesenchymal stem cell: machinery, markers, and strategies of fighting. Cell Mol Biol Lett 2022; 27:69. [PMID: 35986247 PMCID: PMC9388978 DOI: 10.1186/s11658-022-00366-0] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 07/18/2022] [Indexed: 02/08/2023] Open
Abstract
Human mesenchymal stem cells (MSCs) are primary multipotent cells capable of differentiating into osteocytes, chondrocytes, and adipocytes when stimulated under appropriate conditions. The role of MSCs in tissue homeostasis, aging-related diseases, and cellular therapy is clinically suggested. As aging is a universal problem that has large socioeconomic effects, an improved understanding of the concepts of aging can direct public policies that reduce its adverse impacts on the healthcare system and humanity. Several studies of aging have been carried out over several years to understand the phenomenon and different factors affecting human aging. A reduced ability of adult stem cell populations to reproduce and regenerate is one of the main contributors to the human aging process. In this context, MSCs senescence is a major challenge in front of cellular therapy advancement. Many factors, ranging from genetic and metabolic pathways to extrinsic factors through various cellular signaling pathways, are involved in regulating the mechanism of MSC senescence. To better understand and reverse cellular senescence, this review highlights the underlying mechanisms and signs of MSC cellular senescence, and discusses the strategies to combat aging and cellular senescence.
Collapse
|
16
|
Fleming M, Nelson F, Wallace I, Eskiw CH. Genome Tectonics: Linking Dynamic Genome Organization with Cellular Nutrients. Lifestyle Genom 2022; 16:21-34. [PMID: 36446341 DOI: 10.1159/000528011] [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: 06/29/2022] [Accepted: 11/06/2022] [Indexed: 12/22/2023] Open
Abstract
BACKGROUND Our daily intake of food provides nutrients for the maintenance of health, growth, and development. The field of nutrigenomics aims to link dietary intake/nutrients to changes in epigenetic status and gene expression. SUMMARY Although the relationship between our diet and our genes in under intense investigation, there is still a significant aspect of our genome that has received little attention with regard to this. In the past 15 years, the importance of genome organization has become increasingly evident, with research identifying small-scale local changes to large segments of the genome dynamically repositioning within the nucleus in response to/or mediating change in gene expression. The discovery of these dynamic processes and organization maybe as significant as dynamic plate tectonics is to geology, there is little information tying genome organization to specific nutrients or dietary intake. KEY MESSAGES Here, we detail key principles of genome organization and structure, with emphasis on genome folding and organization, and link how these contribute to our future understand of nutrigenomics.
Collapse
Affiliation(s)
- Morgan Fleming
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Fina Nelson
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- 21st Street Brewery Inc., Saskatoon, Saskatchewan, Canada
| | - Iain Wallace
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
- Proxima Research and Development, Saskatoon, Saskatchewan, Canada
| | - Christopher H Eskiw
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| |
Collapse
|
17
|
Epigenetic regulation of aging: implications for interventions of aging and diseases. Signal Transduct Target Ther 2022; 7:374. [PMID: 36336680 PMCID: PMC9637765 DOI: 10.1038/s41392-022-01211-8] [Citation(s) in RCA: 110] [Impact Index Per Article: 55.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/14/2022] [Accepted: 09/28/2022] [Indexed: 11/09/2022] Open
Abstract
Aging is accompanied by the decline of organismal functions and a series of prominent hallmarks, including genetic and epigenetic alterations. These aging-associated epigenetic changes include DNA methylation, histone modification, chromatin remodeling, non-coding RNA (ncRNA) regulation, and RNA modification, all of which participate in the regulation of the aging process, and hence contribute to aging-related diseases. Therefore, understanding the epigenetic mechanisms in aging will provide new avenues to develop strategies to delay aging. Indeed, aging interventions based on manipulating epigenetic mechanisms have led to the alleviation of aging or the extension of the lifespan in animal models. Small molecule-based therapies and reprogramming strategies that enable epigenetic rejuvenation have been developed for ameliorating or reversing aging-related conditions. In addition, adopting health-promoting activities, such as caloric restriction, exercise, and calibrating circadian rhythm, has been demonstrated to delay aging. Furthermore, various clinical trials for aging intervention are ongoing, providing more evidence of the safety and efficacy of these therapies. Here, we review recent work on the epigenetic regulation of aging and outline the advances in intervention strategies for aging and age-associated diseases. A better understanding of the critical roles of epigenetics in the aging process will lead to more clinical advances in the prevention of human aging and therapy of aging-related diseases.
Collapse
|
18
|
Gonçalves RSDSA, Maciel ÁCC, Rolland Y, Vellas B, de Souto Barreto P. Frailty biomarkers under the perspective of geroscience: A narrative review. Ageing Res Rev 2022; 81:101737. [PMID: 36162706 DOI: 10.1016/j.arr.2022.101737] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2022] [Revised: 09/20/2022] [Accepted: 09/21/2022] [Indexed: 01/31/2023]
Abstract
Cellular and molecular aging biomarkers might contribute to identify at-risk individuals for frailty before overt clinical manifestations appear. Although studies on the associations of aging biomarkers and frailty exist, no investigation has gathered this information using a structured framework for identifying aging biomarkers; as a result, the evidence on frailty and aging biomarkers is diffuse and incomplete. Therefore, this narrative review aimed to gather information on the associations of the hallmarks of aging and frailty under the perspective of geroscience. The literature on human studies on this topic is sparse and mainly composed of cross-sectional investigations performed in small study samples. The main putative aging biomarkers associated to frailty were: mitochondrial DNA copy number (genomic instability and mitochondrial dysfunction), telomere length (telomere attrition), global DNA methylation (epigenetic alterations), Hsp70 and Hsp72 (loss of proteostasis), IGF-1 and SIRT1 (deregulated nutrient-sensing), GDF-15 (mitochondrial dysfunction, cellular senescence and altered intercellular communication), CD4 + and CD8 + cell percentages (cellular senescence), circulating osteogenic progenitor (COP) cells (stem cell exhaustion), and IL-6, CRP and TNF-alpha (altered intercellular communication). IGF-1, SIRT1, GDF-15, IL-6, CRP and TNF-alpha presented more evidence among these biomarkers, highlighting the importance of inflammation and nutrient sensing on frailty. Further longitudinal studies investigating biomarkers across the hallmarks of aging would provide valuable information on this topic.
Collapse
Affiliation(s)
| | | | - Yves Rolland
- Gerontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France; CERPOP, Inserm 1295, Université de Toulouse, UPS, Toulouse, France.
| | - Bruno Vellas
- Gerontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France; CERPOP, Inserm 1295, Université de Toulouse, UPS, Toulouse, France.
| | - Philipe de Souto Barreto
- Gerontopole of Toulouse, Institute of Aging, Toulouse University Hospital (CHU Toulouse), Toulouse, France; CERPOP, Inserm 1295, Université de Toulouse, UPS, Toulouse, France.
| |
Collapse
|
19
|
Zhang ZZ, Chen J, Luo BL, Ni MZ, Liu X, Zeng LP, Yang QG, Wang F, Chen GH. Maternal inflammation induces spatial learning and memory impairment in the F1 and F2 generations of mice via sex-specific epigenetic mechanisms. Brain Res Bull 2022; 188:143-154. [PMID: 35931406 DOI: 10.1016/j.brainresbull.2022.08.001] [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: 01/15/2022] [Revised: 06/30/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022]
Abstract
Mounting evidence indicates that histone modifications are involved in aging-associated cognitive decline (AACD) and can be transmitted to offspring over multiple generations under conditions of stress. Here, we investigated the effects of maternal sub-chronic inflammation caused by lipopolysaccharide (LPS) on AACD and histone modifications in the F1 and F2 generations of experimental mice as well as the potential sex specificity of intergenerational effects. In brief, F0-generation CD-1 dams were exposed to LPS (50 µg/kg) or saline (CON) during late pregnancy. Subsequently, F1 males and females (at 2 months-of-age) from the LPS treatment group were mated with non-littermates from the LPS group or wild-type mice to produce F2 generations of parental- (F2-LPS2), paternal- (F2M-LPS1) and maternal-origin (F2F-LPS1) mice. Then, CON-F1 males and females were mated with wild-type mice to generate F2 generations of paternal- (F2M-CON1) and maternal-origin (F2F-CON1). Next, we evaluated the cognitive ability and levels of hippocampal H4K12ac and H3K9me3 in the F1 and F2 offspring at 3- and 13 months-of-age. Overall, F1 male and female LPS groups presented with elevated corticosterone (P < 0.001, P = 0.036, P = 0.025, 0.012, respectively) and cytokine responses, poorer cognitive performance (all P < 0.05) and H3K9 hypermethylation and H4K12 hypoacetylation in the dorsal hippocampus (all P < 0.05); these issues were carried over to the F2 generation via the parents, predominantly in the paternal lineage. Moreover, the levels of H3K9me3 and H4K12ac were significant correlated with cognitive performance (all P < 0.05), regardless of whether inflammatory insults had been incurred directly or indirectly. These findings indicated that gestational inflammatory insults in the F0 generation accelerated AACD in the F2 generation, along with H3K9 hypermethylation and H4K12 hypoacetylation in the hippocampus, and that these issues were derived from the F1 parents, especially from the F1 fathers.
Collapse
Affiliation(s)
- Zhe-Zhe Zhang
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui, PR China
| | - Jing Chen
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui, PR China
| | - Bao-Ling Luo
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui, PR China
| | - Ming-Zhu Ni
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui, PR China
| | - Xue Liu
- Department of Geriatrics, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, Anhui, PR China
| | - Li-Ping Zeng
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui, PR China
| | - Qi-Gang Yang
- Department of Neurology or Department of Critical Care, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, PR China
| | - Fang Wang
- Department of Neurology or Department of Critical Care, the First Affiliated Hospital of Anhui Medical University, Hefei 230022, Anhui, PR China.
| | - Gui-Hai Chen
- Department of Neurology (Sleep Disorders), the Affiliated Chaohu Hospital of Anhui Medical University, Hefei 238000, Anhui, PR China.
| |
Collapse
|
20
|
Havas A, Yin S, Adams PD. The role of aging in cancer. Mol Oncol 2022; 16:3213-3219. [PMID: 36128609 PMCID: PMC9490134 DOI: 10.1002/1878-0261.13302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Many cancers show an increase in incidence with age, and age is the biggest single risk factor for many cancers. However, the molecular basis of this relationship is poorly understood. Through a collection of review articles, our thematic issue discusses the link between aging and cancer in aspects including somatic mutations, proteostasis, mitochondria, metabolism, senescence, epigenetic regulation, immune regulation, DNA damage, and telomere function.
Collapse
Affiliation(s)
- Aaron Havas
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCAUSA
| | - Shanshan Yin
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCAUSA
| | - P. D. Adams
- Sanford Burnham Prebys Medical Discovery InstituteLa JollaCAUSA
| |
Collapse
|
21
|
Bai N, Li N, Cheng R, Guan Y, Zhao X, Song Z, Xu H, Yi F, Jiang B, Li X, Wu X, Jiang C, Zhou T, Guo Q, Guo W, Feng Y, Wang Z, Ma M, Yu Y, Wang Z, Zhang S, Wang C, Zhao W, Liu S, Song X, Liu H, Cao L. Inhibition of SIRT2 promotes APP acetylation and ameliorates cognitive impairment in APP/PS1 transgenic mice. Cell Rep 2022; 40:111062. [PMID: 35830807 DOI: 10.1016/j.celrep.2022.111062] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 04/18/2022] [Accepted: 06/15/2022] [Indexed: 12/23/2022] Open
Abstract
Aging is a primary risk factor for neurodegenerative diseases, such as Alzheimer's disease (AD). SIRT2, an NAD+(nicotinamide adenine dinucleotide)-dependent deacetylase, accumulates in the aging brain. Here, we report that, in the amyloid precursor protein (APP)/PS1 transgenic mouse model of AD, genetic deletion of SIRT2 or pharmacological inhibition of SIRT2 ameliorates cognitive impairment. We find that suppression of SIRT2 enhances acetylation of APP, which promotes non-amyloidogenic processing of APP at the cell surface, leading to increased soluble APP-α (sAPPα). We discover that lysines 132 and 134 of the major pathogenic protein β-amyloid (Aβ) precursor are acetylated and that these residues are deacetylated by SIRT2. Strikingly, exogenous expression of wild-type or an acetylation-mimic APP mutant protects cultured primary neurons from Aβ42 challenge. Our study identifies SIRT2-mediated deacetylation of APP on K132 and K134 as a regulated post-translational modification (PTM) and suggests inhibition of SIRT2 as a potential therapeutic strategy for AD.
Collapse
Affiliation(s)
- Ning Bai
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China.
| | - Na Li
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Rong Cheng
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Yi Guan
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Xiong Zhao
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhijie Song
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China
| | - Hongde Xu
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Fei Yi
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Bo Jiang
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Xiaoman Li
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Xuan Wu
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Cui Jiang
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Department of Medical Oncology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital and Institute, Shenyang, Liaoning 110042, China
| | - Tingting Zhou
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Qiqiang Guo
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Wendong Guo
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Yanling Feng
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhuo Wang
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Mengtao Ma
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Yang Yu
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Zhanyou Wang
- Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Shengping Zhang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Chuangui Wang
- Institute of Translational Medicine, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 201620, China
| | - Weidong Zhao
- Department of Developmental Cell Biology, School of Life Sciences, China Medical University, Key Laboratory of Cell Biology, Ministry of Public Health, Key Laboratory of Medical Cell Biology, Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Shihui Liu
- Aging Institute, Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Xiaoyu Song
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China
| | - Hua Liu
- Innovation Center of Aging-Related Disease Diagnosis and Treatment and Prevention, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| | - Liu Cao
- College of Basic Medical Science, Key Laboratory and Collaborative Innovation Center of Liaoning Province, China Medical University, Shenyang, Liaoning 110122, China; Health Sciences Institute, Key Laboratory of Medical Cell Biology of Ministry of Education, China Medical University, Shenyang, Liaoning 110122, China; Innovation Center of Aging-Related Disease Diagnosis and Treatment and Prevention, Jinzhou Medical University, Jinzhou, Liaoning 121001, China.
| |
Collapse
|
22
|
Potential Methods of Targeting Cellular Aging Hallmarks to Reverse Osteoarthritic Phenotype of Chondrocytes. BIOLOGY 2022; 11:biology11070996. [PMID: 36101377 PMCID: PMC9312132 DOI: 10.3390/biology11070996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Revised: 06/12/2022] [Accepted: 06/20/2022] [Indexed: 01/15/2023]
Abstract
Osteoarthritis (OA) is a chronic degenerative joint disease that causes pain, physical disability, and life quality impairment. The pathophysiology of OA remains largely unclear, and currently no FDA-approved disease-modifying OA drugs (DMOADs) are available. As has been acknowledged, aging is the primary independent risk factor for OA, but the mechanisms underlying such a connection are not fully understood. In this review, we first revisit the changes in OA chondrocytes from the perspective of cellular hallmarks of aging. It is concluded that OA chondrocytes share many alterations similar to cellular aging. Next, based on the findings from studies on other cell types and diseases, we propose methods that can potentially reverse osteoarthritic phenotype of chondrocytes back to a healthier state. Lastly, current challenges and future perspectives are summarized.
Collapse
|
23
|
Reale A, Tagliatesta S, Zardo G, Zampieri M. Counteracting aged DNA methylation states to combat ageing and age-related diseases. Mech Ageing Dev 2022; 206:111695. [PMID: 35760211 DOI: 10.1016/j.mad.2022.111695] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 06/09/2022] [Accepted: 06/22/2022] [Indexed: 12/18/2022]
Abstract
DNA methylation (DNAm) overwrites information about multiple extrinsic factors on the genome. Age is one of these factors. Age causes characteristic DNAm changes that are thought to be not only major drivers of normal ageing but also precursors to diseases, cancer being one of these. Although there is still much to learn about the relationship between ageing, age-related diseases and DNAm, we now know how to interpret some of the effects caused by age in the form of changes in methylation marks at specific loci. In fact, these changes form the basis of the so called "epigenetic clocks", which translate the genomic methylation profile into an "epigenetic age". Epigenetic age does not only estimate chronological age but can also predict the risk of chronic diseases and mortality. Epigenetic age is believed to be one of the most accurate metrics of biological age. Initial evidence has recently been gathered pointing to the possibility that the rate of epigenetic ageing can be slowed down or even reversed. In this review, we discuss some of the most relevant advances in this field. Expected outcome is that this approach can provide insights into how to preserve health and reduce the impact of ageing diseases in humans.
Collapse
Affiliation(s)
- Anna Reale
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
| | - Stefano Tagliatesta
- Department of Biology and Biotechnology "Charles Darwin", Sapienza University of Rome, 00161 Rome, Italy.
| | - Giuseppe Zardo
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
| | - Michele Zampieri
- Department of Experimental Medicine, Sapienza University of Rome, 00161 Rome, Italy.
| |
Collapse
|
24
|
Liu Z, Ji Q, Ren J, Yan P, Wu Z, Wang S, Sun L, Wang Z, Li J, Sun G, Liang C, Sun R, Jiang X, Hu J, Ding Y, Wang Q, Bi S, Wei G, Cao G, Zhao G, Wang H, Zhou Q, Belmonte JCI, Qu J, Zhang W, Liu GH. Large-scale chromatin reorganization reactivates placenta-specific genes that drive cellular aging. Dev Cell 2022; 57:1347-1368.e12. [PMID: 35613614 DOI: 10.1016/j.devcel.2022.05.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 02/24/2022] [Accepted: 05/02/2022] [Indexed: 01/10/2023]
Abstract
Nuclear deformation, a hallmark frequently observed in senescent cells, is presumed to be associated with the erosion of chromatin organization at the nuclear periphery. However, how such gradual changes in higher-order genome organization impinge on local epigenetic modifications to drive cellular mechanisms of aging has remained enigmatic. Here, through large-scale epigenomic analyses of isogenic young, senescent, and progeroid human mesenchymal progenitor cells (hMPCs), we delineate a hierarchy of integrated structural state changes that manifest as heterochromatin loss in repressive compartments, euchromatin weakening in active compartments, switching in interfacing topological compartments, and increasing epigenetic entropy. We found that the epigenetic de-repression unlocks the expression of pregnancy-specific beta-1 glycoprotein (PSG) genes that exacerbate hMPC aging and serve as potential aging biomarkers. Our analyses provide a rich resource for uncovering the principles of epigenomic landscape organization and its changes in cellular aging and for identifying aging drivers and intervention targets with a genome-topology-based mechanism.
Collapse
Affiliation(s)
- Zunpeng Liu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qianzhao Ji
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jie Ren
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pengze Yan
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zeming Wu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Si Wang
- Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Aging Translational Medicine Center, International Center for Aging and Cancer, Beijing Municipal Geriatric Medical Research Center, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Liang Sun
- NHC Beijing Institute of Geriatrics, NHC Key Laboratory of Geriatrics, Institute of Geriatric Medicine of Chinese Academy of Medical Sciences, National Center of Gerontology/ Beijing Hospital, Beijing 100730, China; Department of Clinical Laboratory, the First Affiliated Hospital of Kunming Medical University, Kunming 650032, China
| | - Zehua Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jiaming Li
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqiang Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Chuqian Liang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Run Sun
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaoyu Jiang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jianli Hu
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yingjie Ding
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Qiaoran Wang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shijia Bi
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China
| | - Gang Wei
- CAS Key Laboratory of Computational Biology, Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai 200031, China
| | - Gang Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan 430070, China; Bio-Medical Center, Huazhong Agricultural University, Wuhan 430070, China
| | - Guoguang Zhao
- Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, Beijing 100053, China
| | - Hongmei Wang
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | - Qi Zhou
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China
| | | | - Jing Qu
- State Key Laboratory of Stem Cell and Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China.
| | - Weiqi Zhang
- CAS Key Laboratory of Genomic and Precision Medicine, Beijing Institute of Genomics, Chinese Academy of Sciences and China National Center for Bioinformation, Beijing 100101, China; Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Sino-Danish College, University of Chinese Academy of Sciences, Beijing 100049, China.
| | - Guang-Hui Liu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China; Advanced Innovation Center for Human Brain Protection, National Clinical Research Center for Geriatric Disorders, Xuanwu Hospital, Capital Medical University, Beijing 100053, China; Institute for Stem cell and Regeneration, Chinese Academy of Sciences, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing 100049, China; Beijing Institute for Stem Cell and Regenerative Medicine, Beijing 100101, China.
| |
Collapse
|
25
|
Abstract
Significance: Aging is a natural process that affects most living organisms, resulting in increased mortality. As the world population ages, the prevalence of age-associated diseases, and their associated health care costs, has increased sharply. A better understanding of the molecular mechanisms that lead to cellular dysfunction may provide important targets for interventions to prevent or treat these diseases. Recent Advances: Although the mitochondrial theory of aging had been proposed more than 40 years ago, recent new data have given stronger support for a central role for mitochondrial dysfunction in several pathways that are deregulated during normal aging and age-associated disease. Critical Issues: Several of the experimental evidence linking mitochondrial alterations to age-associated loss of function are correlative and mechanistic insights are still elusive. Here, we review how mitochondrial dysfunction may be involved in many of the known hallmarks of aging, and how these pathways interact in an intricate net of molecular relationships. Future Directions: As it has become clear that mitochondrial dysfunction plays causative roles in normal aging and age-associated diseases, it is necessary to better define the molecular interactions and the temporal and causal relationship between these changes and the relevant phenotypes seen during the aging process. Antioxid. Redox Signal. 36, 824-843.
Collapse
Affiliation(s)
- Caio M P F Batalha
- Lab. Genética Mitocondrial, Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| | - Anibal Eugênio Vercesi
- Departamento de Patologia Clínica, Faculdade de Medicina, Universidade de Campinas, Campinas, Brazil
| | - Nadja C Souza-Pinto
- Lab. Genética Mitocondrial, Departamento de Bioquímica, Instituto de Química, Universidade de São Paulo, São Paulo, Brazil
| |
Collapse
|
26
|
Lamka GF, Harder AM, Sundaram M, Schwartz TS, Christie MR, DeWoody JA, Willoughby JR. Epigenetics in Ecology, Evolution, and Conservation. Front Ecol Evol 2022. [DOI: 10.3389/fevo.2022.871791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Epigenetic variation is often characterized by modifications to DNA that do not alter the underlying nucleotide sequence, but can influence behavior, morphology, and physiological phenotypes by affecting gene expression and protein synthesis. In this review, we consider how the emerging field of ecological epigenetics (eco-epi) aims to use epigenetic variation to explain ecologically relevant phenotypic variation and predict evolutionary trajectories that are important in conservation. Here, we focus on how epigenetic data have contributed to our understanding of wild populations, including plants, animals, and fungi. First, we identified published eco-epi literature and found that there was limited taxonomic and ecosystem coverage and that, by necessity of available technology, these studies have most often focused on the summarized epigenome rather than locus- or nucleotide-level epigenome characteristics. We also found that while many studies focused on adaptation and heritability of the epigenome, the field has thematically expanded into topics such as disease ecology and epigenome-based ageing of individuals. In the second part of our synthesis, we discuss key insights that have emerged from the epigenetic field broadly and use these to preview the path toward integration of epigenetics into ecology. Specifically, we suggest moving focus to nucleotide-level differences in the epigenome rather than whole-epigenome data and that we incorporate several facets of epigenome characterization (e.g., methylation, chromatin structure). Finally, we also suggest that incorporation of behavior and stress data will be critical to the process of fully integrating eco-epi data into ecology, conservation, and evolutionary biology.
Collapse
|
27
|
Wang H, Yang L, Liu M, Luo J. Protein post-translational modifications in the regulation of cancer hallmarks. Cancer Gene Ther 2022; 30:529-547. [PMID: 35393571 DOI: 10.1038/s41417-022-00464-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Revised: 02/28/2022] [Accepted: 03/18/2022] [Indexed: 12/12/2022]
Abstract
Posttranslational modifications (PTMs) of proteins, the major mechanism of protein function regulation, play important roles in regulating a variety of cellular physiological and pathological processes. Although the classical PTMs, such as phosphorylation, acetylation, ubiquitination and methylation, have been well studied, the emergence of many new modifications, such as succinylation, hydroxybutyrylation, and lactylation, introduces a new layer to protein regulation, leaving much more to be explored and wide application prospects. In this review, we will provide a broad overview of the significant roles of PTMs in regulating human cancer hallmarks through selecting a diverse set of examples, and update the current advances in the therapeutic implications of these PTMs in human cancer.
Collapse
Affiliation(s)
- Haiying Wang
- Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, 100191, Beijing, China.
| | - Liqian Yang
- Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, 100191, Beijing, China
| | - Minghui Liu
- Department of Medical Genetics, Center for Medical Genetics, Peking University Health Science Center, 100191, Beijing, China
| | - Jianyuan Luo
- Beijing Key Laboratory of Protein Posttranslational Modifications and Cell Function, Department of Biochemistry and Biophysics, School of Basic Medical Sciences, Peking University Health Science Center, 100191, Beijing, China. .,Department of Medical Genetics, Center for Medical Genetics, Peking University Health Science Center, 100191, Beijing, China.
| |
Collapse
|
28
|
Weyman-Vela Y, Simental-Mendía LE, Camacho-Luis A, Gamboa-Gómez CI, Guerrero-Romero F. The Triglycerides and Glucose Index Is Associated with Mild Cognitive Impairment in Older Adults. Endocr Res 2022; 47:89-93. [PMID: 35393913 DOI: 10.1080/07435800.2022.2061508] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND It has been reported that insulin resistance is related to cognitive decline. The triglycerides and glucose (TyG) index, is a reliable and inexpensive surrogate test for detecting insulin resistance. AIMS The goal of this study was to evaluate the association between the TyG index and the mild cognitive impairment (MCI) in older adults. METHODS A total of 135 individuals, men and women aged 60 to 90 years, were enrolled in a case and control study. Individuals with a diagnosis of MCI (n = 65) were allocated into the case group and compared with individuals without MCI (n = 70) in the control group. Alcohol intake, diabetes duration ≥5 years, diagnoses of cerebrovascular disease, brain injury, folic acid deficiency, dementia, moderate or severe CI, major depressive disorders, and thyroid disease were exclusion criteria. RESULTS Individuals in the case group exhibited higher waist circumference (97.9 ± 13.9 versus 93.5 ± 13.0, p = .001) and TyG index (5.0 ± 0.3 versus 4.1 ± 0.2, p = .001) than individuals in the control group. The TyG index ≥4.68 (OR 6.91; 95% CI 2.05-11.68) and waist circumference (OR 1.03; 95% CI 1.01-1.06) were positively associated with MCI, while education level (OR 0.44; 95% CI 0.30-0.61), occupation (OR 0.75; 95% CI 0.59-0.61), and exercise (OR 0.34; 95% CI 0.22-0.52) were inversely associated with MCI. After controlling for sex, age, waist circumference, education level, occupation, and exercise, a TyG index ≥4.68 remained significantly associated with MCI (OR 2.97; 95% CI 1.12-14.71). CONCLUSION The TyG index is independently associated with the presence of MCI in older people.
Collapse
Affiliation(s)
- Yéssika Weyman-Vela
- Unidad de Investigación Biomédica, Instituto Mexicano del Seguro Social, Durango, México
| | - Luis E Simental-Mendía
- Unidad de Investigación Biomédica, Instituto Mexicano del Seguro Social, Durango, México
| | - Abelardo Camacho-Luis
- Nutrición, Universidad Juárez del Estado de DurangoFacultad de Medicina y , Durango, Mexico
| | - Claudia I Gamboa-Gómez
- Unidad de Investigación Biomédica, Instituto Mexicano del Seguro Social, Durango, México
| | | |
Collapse
|
29
|
Yasom S, Khumsri W, Boonsongserm P, Kitkumthorn N, Ruangvejvorachai P, Sooksamran A, Wanotayan R, Mutirangura A. B1 siRNA Increases de novo DNA Methylation of B1 Elements and Promotes Wound Healing in Diabetic Rats. Front Cell Dev Biol 2022; 9:802024. [PMID: 35127718 PMCID: PMC8807477 DOI: 10.3389/fcell.2021.802024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/22/2021] [Indexed: 11/13/2022] Open
Abstract
Alu (B1 in rodents) hypomethylation, commonly found in diabetes mellitus patients, increases DNA damage and, consequently, delays the healing process. Alu siRNA increases Alu methylation, reduces DNA damage, and promotes cell proliferation.Aim: To explore whether B1 siRNA treatment restores B1 hypomethylation, resulting in a reduction in DNA damage and acceleration of the healing process in diabetic rat wounds.Methods: We generated splinted-excisional wounds in a streptozotocin (STZ)-induced type I diabetic rat model and treated the wounds with B1 siRNA/Ca-P nanoparticles to generate de novo DNA methylation in B1 intersperse elements. After treatment, we investigated B1 methylation levels, wound closure rate, wound histopathological structure, and DNA damage markers in diabetic wounds compared to nondiabetic wounds.Results: We reported that STZ-induced diabetic rat wounds exhibited B1 hypomethylation, wound repair defects, anatomical feature defects, and greater DNA damage compared to normal rats. We also determined that B1 siRNA treatment by Ca-P nanoparticle delivery restored a decrease in B1 methylation levels, remedied delayed wound healing, and improved the histological appearance of the wounds by reducing DNA damage.Conclusion: B1 hypomethylation is inducible in an STZ-induced type I diabetes rat model. Restoration of B1 hypomethylation using B1 siRNA leads to increased genome stability and improved wound repair in diabetes. Thus, B1 siRNA intervention may be a promising strategy for reprogramming DNA methylation to treat or prevent DNA damage-related diseases.
Collapse
Affiliation(s)
- Sakawdaurn Yasom
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
- Interdisciplinary Program of Biomedical Sciences, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Wilunplus Khumsri
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
- Interdisciplinary Program of Biomedical Sciences, Graduate School, Chulalongkorn University, Bangkok, Thailand
| | - Papatson Boonsongserm
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
| | - Nakarin Kitkumthorn
- Department of Oral Biology, Faculty of Dentistry, Mahidol University, Bangkok, Thailand
| | | | - Apasee Sooksamran
- Department of Pathology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Rujira Wanotayan
- Department of Radiological Technology, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand
| | - Apiwat Mutirangura
- Center of Excellence in Molecular Genetics of Cancer and Human Disease, Department of Anatomy, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand
- *Correspondence: Apiwat Mutirangura,
| |
Collapse
|
30
|
Hernandez CM, Hernandez AR, Hoffman JM, King PH, McMahon LL, Buford TW, Carter C, Bizon JL, Burke SN. A Neuroscience Primer for Integrating Geroscience With the Neurobiology of Aging. J Gerontol A Biol Sci Med Sci 2022; 77:e19-e33. [PMID: 34623396 PMCID: PMC8751809 DOI: 10.1093/gerona/glab301] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Indexed: 11/13/2022] Open
Abstract
Neuroscience has a rich history of studies focusing on neurobiology of aging. However, much of the aging studies in neuroscience occur outside of the gerosciences. The goal of this primer is 2-fold: first, to briefly highlight some of the history of aging neurobiology and second, to introduce to geroscientists the broad spectrum of methodological approaches neuroscientists use to study the neurobiology of aging. This primer is accompanied by a corresponding geroscience primer, as well as a perspective on the current challenges and triumphs of the current divide across these 2 fields. This series of manuscripts is intended to foster enhanced collaborations between neuroscientists and geroscientists with the intent of strengthening the field of cognitive aging through inclusion of parameters from both areas of expertise.
Collapse
Affiliation(s)
- Caesar M Hernandez
- Department of Cellular, Development, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Evelyn F. McKnight Brain Institute, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Abigail R Hernandez
- Evelyn F. McKnight Brain Institute, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Department of Medicine, Division of Gerontology, Geriatrics, and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jessica M Hoffman
- Department of Medicine, Division of Gerontology, Geriatrics, and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Peter H King
- Department of Cellular, Development, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Department of Neurology, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Birmingham Veterans Affairs Medical Center, Birmingham, Alabama, USA
| | - Lori L McMahon
- Department of Cellular, Development, and Integrative Biology, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Evelyn F. McKnight Brain Institute, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,UAB Nathan Shock Center for the Basic Biology of Aging, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,UAB Integrative Center for Aging Research, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Thomas W Buford
- Evelyn F. McKnight Brain Institute, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Department of Medicine, Division of Gerontology, Geriatrics, and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,UAB Nathan Shock Center for the Basic Biology of Aging, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,UAB Integrative Center for Aging Research, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Geriatric Research Education and Clinical Center, Birmingham VA Medical Center, Birmingham, Alabama, USA
| | - Christy Carter
- Evelyn F. McKnight Brain Institute, The University of Alabama at Birmingham, Birmingham, Alabama, USA.,Department of Medicine, Division of Gerontology, Geriatrics, and Palliative Care, The University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jennifer L Bizon
- Department of Neuroscience, Center for Cognitive Aging and Memory, and the McKnight Brain Institute, The University of Florida, College of Medicine, Gainesville, Florida, USA
| | - Sara N Burke
- Department of Neuroscience, Center for Cognitive Aging and Memory, and the McKnight Brain Institute, The University of Florida, College of Medicine, Gainesville, Florida, USA
| |
Collapse
|
31
|
Lei H, Huffman DM, Salmon AB, LeBrasseur NK, Carter C, Richardson A, Austad S, Ladiges W. Resilience to aging is a heterogeneous characteristic defined by physical stressors. AGING PATHOBIOLOGY AND THERAPEUTICS 2022; 4:19-22. [PMID: 35475259 PMCID: PMC9038086 DOI: 10.31491/apt.2022.03.076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Physical resilience, the capacity to respond to and recover from a stressful event, declines with advancing age. Individuals respond differently to physical stressors across their lifespans. While the biological underpinnings of resilience remain unclear, a plausible determinant is the capacity of an individual's cellular and molecular levels to return to homeostasis after a physical challenge. Impaired resilience may not only be a consequence of aging but could also be a contributing factor to the aging process. Therefore, resilience at relatively younger ages could be predictive of future health and lifespan. By utilizing standardized physical challenges and measuring stress response patterns, the relative resilience of individuals can be quantified and classified. Current preclinical research suggests that several physical stressors could be used to measure resilience in clinical aging studies. A mechanistic understanding of why some individuals are more resilient to physical stressors than others could help identify protective factors and therapeutic ways to promote healthy aging.
Collapse
Affiliation(s)
- Haoyi Lei
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Derek M. Huffman
- Departments of Molecular Pharmacology, Medicine and Institute for Aging Research, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Adam B. Salmon
- San Antonio Sam and Ann Barshop Institute for Longevity and Aging Studies and Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, Department of Molecular Medicine, South Texas Veterans Health Care System, Geriatric Research Education and Clinical Center, San Antonio, TX, USA
| | - Nathan K. LeBrasseur
- Department of Physical Medicine & Rehabilitation, Mayo Clinic, Rochester, MN, USA
| | - Christy Carter
- Department of Medicine, Division of Gerontology, Geriatrics and Palliative Care, School of Medicine, University of Alabama Birmingham, Birmingham, AL, USA
| | - Arlan Richardson
- Department of Biochemistry & Molecular Biology, University of Oklahoma Health Science Center. Oklahoma City VA Medical Center, Oklahoma City, OK, USA
| | - Steve Austad
- Department of Biology, University of Alabama Birmingham, Birmingham, AL, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| |
Collapse
|
32
|
Krishnarajah S, Ingelfinger F, Friebel E, Cansever D, Amorim A, Andreadou M, Bamert D, Litscher G, Lutz M, Mayoux M, Mundt S, Ridder F, Sparano C, Stifter SA, Ulutekin C, Unger S, Vermeer M, Zwicky P, Greter M, Tugues S, De Feo D, Becher B. Single-cell profiling of immune system alterations in lymphoid, barrier and solid tissues in aged mice. NATURE AGING 2022; 2:74-89. [PMID: 37118354 DOI: 10.1038/s43587-021-00148-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Accepted: 11/04/2021] [Indexed: 04/30/2023]
Abstract
Aging exerts profound and paradoxical effects on the immune system, at once impairing proliferation, cytotoxicity and phagocytosis, and inducing chronic inflammation. Previous studies have focused on individual tissues or cell types, while a comprehensive multisystem study of tissue-resident and circulating immune populations during aging is lacking. Here we reveal an atlas of age-related changes in the abundance and phenotype of immune cell populations across 12 mouse tissues. Using cytometry-based high parametric analysis of 37 mass-cytometry and 55 spectral flow-cytometry parameters, mapping samples from young and aged animals revealed conserved and tissue-type-specific patterns of both immune atrophy and expansion. We uncovered clear phenotypic changes in both lymphoid and myeloid lineages in aged mice, and in particular a contraction in natural killer cells and plasmacytoid dendritic cells. These changes correlated with a skewing towards myelopoiesis at the expense of early lymphocyte genesis in aged mice. Taken together, this atlas represents a comprehensive, systematic and thorough resource of the age-dependent alterations of the mammalian immune system in lymphoid, barrier and solid tissues.
Collapse
Affiliation(s)
| | - Florian Ingelfinger
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Ekaterina Friebel
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Dilay Cansever
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Ana Amorim
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Myrto Andreadou
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - David Bamert
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Gioana Litscher
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Mirjam Lutz
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Maud Mayoux
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Sarah Mundt
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Frederike Ridder
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Colin Sparano
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | | | - Can Ulutekin
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Susanne Unger
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Marijne Vermeer
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Pascale Zwicky
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Melanie Greter
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Sonia Tugues
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Donatella De Feo
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland
| | - Burkhard Becher
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland.
| |
Collapse
|
33
|
Zhang X, Liu H, Zhou JQ, Krick S, Barnes JW, Thannickal VJ, Sanders YY. Modulation of H4K16Ac levels reduces pro-fibrotic gene expression and mitigates lung fibrosis in aged mice. Theranostics 2022; 12:530-541. [PMID: 34976199 PMCID: PMC8692895 DOI: 10.7150/thno.62760] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Accepted: 09/01/2021] [Indexed: 11/05/2022] Open
Abstract
Histone H4 lysine16 acetylation (H4K16Ac) modulates chromatin structure by serving as a switch from a repressive to a transcriptionally active state. This euchromatin mark is associated with active transcription. In this study, we investigated the effects of H4K16Ac on the expression of pro-fibrotic genes in lung fibroblasts from patients with idiopathic pulmonary fibrosis (IPF) and in an aging murine model of lung fibrosis. Methods: The lung tissues and fibroblasts from human IPF/non-IPF donors and from aged mice with/without bleomycin induced lung fibrosis were used in this study. The H4K16Ac levels were examined by immunohistochemistry or western blots. RNA silencing of H4K16Ac acetyltransferase Mof was used to reduce H4K16Ac levels in IPF fibroblasts. The effects of reduced H4K16Ac on pro-fibrotic gene expression were examined by western blots and real-time PCR. The association of H4K16Ac with these genes' promoter region were evaluated by ChIP assays. The gene expression profile in siRNA Mof transfected IPF cells were determined by RNA-Seq. The impact of H4K16Ac levels on lung fibrosis was evaluated in an aging murine model. Results: Aged mice with bleomycin induced lung fibrosis showed increased H4K16Ac levels. Human lung fibroblasts with siRNA Mof silencing demonstrated reduced H4K16Ac, and significantly down-regulated profibrotic genes, such as α-smooth muscle actin (α-SMA), collagen I, Nox4, and survivin. ChIP assays confirmed the associations of these pro-fibrotic genes' promoter region with H4K16Ac, while in siRNA Mof transfected cells the promoter/H4K16Ac associations were depleted. RNA-seq data demonstrated that Mof knockdown altered gene expression and cellular pathways, including cell damage and repair. In the aging mice model of persistent lung fibrosis, 18-month old mice given intra-nasal siRNA Mof from week 3 to 6 following bleomycin injury showed improved lung architecture, decreased total hydroxyproline content and lower levels of H4K16Ac. Conclusions: These results indicate a critical epigenetic regulatory role for histone H4K16Ac in the pathogenesis of pulmonary fibrosis, which will aid in the development of novel therapeutic strategies for age-related diseases such as IPF.
Collapse
Affiliation(s)
| | | | | | | | | | | | - Yan Y Sanders
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294, USA
| |
Collapse
|
34
|
Gao X, Chen Q, Yao H, Tan J, Liu Z, Zhou Y, Zou Z. Epigenetics in Alzheimer's Disease. Front Aging Neurosci 2022; 14:911635. [PMID: 35813941 PMCID: PMC9260511 DOI: 10.3389/fnagi.2022.911635] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 05/24/2022] [Indexed: 12/19/2022] Open
Abstract
Alzheimer's disease (AD) is a neurodegenerative disease with unknown pathogenesis and complex pathological manifestations. At present, a large number of studies on targeted drugs for the typical pathological phenomenon of AD (Aβ) have ended in failure. Although there are some drugs on the market that indirectly act on AD, their efficacy is very low and the side effects are substantial, so there is an urgent need to develop a new strategy for the treatment of AD. An increasing number of studies have confirmed epigenetic changes in AD. Although it is not clear whether these epigenetic changes are the cause or result of AD, they provide a new avenue of treatment for medical researchers worldwide. This article summarizes various epigenetic changes in AD, including DNA methylation, histone modification and miRNA, and concludes that epigenetics has great potential as a new target for the treatment of AD.
Collapse
Affiliation(s)
- Xiaodie Gao
- Guangxi Key Lab of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
- Department of Scientific Research, Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, China
| | - Qiang Chen
- Department of Scientific Research, Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, China
| | - Hua Yao
- Guangxi Key Lab of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
| | - Jie Tan
- Guangxi Key Lab of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
| | - Zheng Liu
- Guangxi Key Lab of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
- *Correspondence: Zheng Liu,
| | - Yan Zhou
- Guangxi Key Lab of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
- Yan Zhou,
| | - Zhenyou Zou
- Guangxi Key Lab of Brain and Cognitive Neuroscience, Guilin Medical University, Guilin, China
- Department of Scientific Research, Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou, China
- Zhenyou Zou,
| |
Collapse
|
35
|
Kim Y, Ji H, Cho E, Park NH, Hwang K, Park W, Lee KS, Park D, Jung E. nc886, a Non-Coding RNA, Is a New Biomarker and Epigenetic Mediator of Cellular Senescence in Fibroblasts. Int J Mol Sci 2021; 22:ijms222413673. [PMID: 34948464 PMCID: PMC8705676 DOI: 10.3390/ijms222413673] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Revised: 12/15/2021] [Accepted: 12/18/2021] [Indexed: 12/01/2022] Open
Abstract
Functional studies of organisms and human models have revealed that epigenetic changes can significantly impact the process of aging. Non-coding RNA (ncRNA), one of epigenetic regulators, plays an important role in modifying the expression of mRNAs and their proteins. It can mediate the phenotype of cells. It has been reported that nc886 (=vtRNA2-1 or pre-miR-886), a long ncRNA, can suppress tumor formation and photo-damages of keratinocytes caused by UVB. The aim of this study was to determine the role of nc886 in replicative senescence of fibroblasts and determine whether substances capable of controlling nc886 expression could regulate cellular senescence. In replicative senescence fibroblasts, nc886 expression was decreased while methylated nc886 was increased. There were changes of senescence biomarkers including SA-β-gal activity and expression of p16INK4A and p21Waf1/Cip1 in senescent cells. These findings indicate that the decrease of nc886 associated with aging is related to cellular senescence of fibroblasts and that increasing nc886 expression has potential to suppress cellular senescence. AbsoluTea Concentrate 2.0 (ATC) increased nc886 expression and ameliorated cellular senescence of fibroblasts by inhibiting age-related biomarkers. These results indicate that nc886 has potential as a new target for anti-aging and that ATC can be a potent epigenetic anti-aging ingredient.
Collapse
Affiliation(s)
- Yuna Kim
- Biospectrum Life Science Institute, A-1805, U-TOWER, Yongin-si 16827, Korea; (Y.K.); (H.J.); (E.C.); (K.-S.L.); (D.P.)
| | - Hyanggi Ji
- Biospectrum Life Science Institute, A-1805, U-TOWER, Yongin-si 16827, Korea; (Y.K.); (H.J.); (E.C.); (K.-S.L.); (D.P.)
| | - Eunae Cho
- Biospectrum Life Science Institute, A-1805, U-TOWER, Yongin-si 16827, Korea; (Y.K.); (H.J.); (E.C.); (K.-S.L.); (D.P.)
| | - Nok-Hyun Park
- Basic Research and Innovation Division, Amorepacific Corporation R&D Center, Youngin-si 17074, Korea; (N.-H.P.); (K.H.); (W.P.)
| | - Kyeonghwan Hwang
- Basic Research and Innovation Division, Amorepacific Corporation R&D Center, Youngin-si 17074, Korea; (N.-H.P.); (K.H.); (W.P.)
| | - Wonseok Park
- Basic Research and Innovation Division, Amorepacific Corporation R&D Center, Youngin-si 17074, Korea; (N.-H.P.); (K.H.); (W.P.)
| | - Kwang-Soo Lee
- Biospectrum Life Science Institute, A-1805, U-TOWER, Yongin-si 16827, Korea; (Y.K.); (H.J.); (E.C.); (K.-S.L.); (D.P.)
| | - Deokhoon Park
- Biospectrum Life Science Institute, A-1805, U-TOWER, Yongin-si 16827, Korea; (Y.K.); (H.J.); (E.C.); (K.-S.L.); (D.P.)
| | - Eunsun Jung
- Biospectrum Life Science Institute, A-1805, U-TOWER, Yongin-si 16827, Korea; (Y.K.); (H.J.); (E.C.); (K.-S.L.); (D.P.)
- Correspondence:
| |
Collapse
|
36
|
Das S, Min S, Prahlad V. Gene bookmarking by the heat shock transcription factor programs the insulin-like signaling pathway. Mol Cell 2021; 81:4843-4860.e8. [PMID: 34648748 PMCID: PMC8642288 DOI: 10.1016/j.molcel.2021.09.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 08/09/2021] [Accepted: 09/17/2021] [Indexed: 12/13/2022]
Abstract
Maternal stress can have long-lasting epigenetic effects on offspring. To examine how epigenetic changes are triggered by stress, we examined the effects of activating the universal stress-responsive heat shock transcription factor HSF-1 in the germline of Caenorhabditis elegans. We show that, when activated in germ cells, HSF-1 recruits MET-2, the putative histone 3 lysine 9 (H3K9) methyltransferase responsible for repressive H3K9me2 (H3K9 dimethyl) marks in chromatin, and negatively bookmarks the insulin receptor daf-2 and other HSF-1 target genes. Increased H3K9me2 at these genes persists in adult progeny and shifts their stress response strategy away from inducible chaperone expression as a mechanism to survive stress and instead rely on decreased insulin/insulin growth factor (IGF-1)-like signaling (IIS). Depending on the duration of maternal heat stress exposure, this epigenetic memory is inherited by the next generation. Thus, paradoxically, HSF-1 recruits the germline machinery normally responsible for erasing transcriptional memory but, instead, establishes a heritable epigenetic memory of prior stress exposure.
Collapse
Affiliation(s)
- Srijit Das
- Department of Biology, Aging Mind and Brain Initiative, 143 Biology Building, Iowa City, IA 52242-1324, USA
| | - Sehee Min
- Department of Biology, Aging Mind and Brain Initiative, 143 Biology Building, Iowa City, IA 52242-1324, USA
| | - Veena Prahlad
- Department of Biology, Aging Mind and Brain Initiative, 143 Biology Building, Iowa City, IA 52242-1324, USA; Department of Biology, 143 Biology Building, Iowa City, IA 52242-1324, USA; Iowa Neuroscience Institute, 169 Newton Road, 2312 Pappajohn Biomedical Discovery Building, Iowa City, IA 52242, USA.
| |
Collapse
|
37
|
Tabibzadeh S. CircadiOmic medicine and aging. Ageing Res Rev 2021; 71:101424. [PMID: 34389481 DOI: 10.1016/j.arr.2021.101424] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 07/22/2021] [Accepted: 08/05/2021] [Indexed: 01/15/2023]
Abstract
The earth displays daily, seasonal and annual environmental cycles that have led to evolutionarily adapted ultradian, circadian and infradian rhythmicities in the entire biosphere. All biological organisms must adapt to these cycles that synchronize the function of their circadiome. The objective of this review is to discuss the latest knowledge regarding the role of circadiomics in health and aging. The biological timekeepers are responsive to the environmental cues at microsecond to seasonal time-scales and act with precision of a clock machinery. The robustness of these rhythms is essential to normal daily function of cells, tissues and organs. Mis-alignment of circadian rhythms makes the individual prone to aging, sleep disorders, cancer, diabetes, and neuro-degenerative diseases. Circadian and CircadiOmic medicine are emerging fields that leverage our in-depth understanding of health issues, that arise as a result of disturbances in circadian rhythms, towards establishing better therapeutic approaches in personalized medicine and for geroprotection.
Collapse
Affiliation(s)
- Siamak Tabibzadeh
- Frontiers in Bioscience Research Institute in Aging and Cancer, 16471 Scientific Way, Irvine, CA 92618, United States.
| |
Collapse
|
38
|
Kim JK, Shin KK, Kim H, Hong YH, Choi W, Kwak YS, Han CK, Hyun SH, Cho JY. Korean Red Ginseng exerts anti-inflammatory and autophagy-promoting activities in aged mice. J Ginseng Res 2021; 45:717-725. [PMID: 34764726 PMCID: PMC8569327 DOI: 10.1016/j.jgr.2021.03.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 03/19/2021] [Accepted: 03/30/2021] [Indexed: 12/14/2022] Open
Abstract
BACKGROUND Korean Red Ginseng (KRG) is a traditional herb that has several beneficial properties including anti-aging, anti-inflammatory, and autophagy regulatory effects. However, the mechanisms of these effects are not well understood. In this report, the underlying mechanisms of anti-inflammatory and autophagy-promoting effects were investigated in aged mice treated with KRG-water extract (WE) over a long period. METHODS The mechanisms of anti-inflammatory and autophagy-promoting activities of KRG-WE were evaluated in kidney, lung, liver, stomach, and colon of aged mice using semi-quantitative reverse transcription polymerase chain reaction (RT-PCR), quantitative RT-PCR (qRT-PCR), and western blot analysis. RESULTS KRG-WE significantly suppressed the mRNA expression levels of inflammation-related genes such as interleukin (IL)-1β, IL-8, tumor necrosis factor (TNF)-α, monocyte chemoattractant protein-1 (MCP-1), and IL-6 in kidney, lung, liver, stomach, and colon of the aged mice. Furthermore, KRG-WE downregulated the expression of transcription factors and their protein levels associated with inflammation in lung and kidney of aged mice. KRG-WE also increased the expression of autophagy-related genes and their protein levels in colon, liver, and stomach. CONCLUSION The results suggest that KRG can suppress inflammatory responses and recover autophagy activity in aged mice.
Collapse
Affiliation(s)
- Jin Kyeong Kim
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Kon Kuk Shin
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Haeyeop Kim
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Yo Han Hong
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Wooram Choi
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| | - Yi-Seong Kwak
- R&D Headquarters, Korea Ginseng Corporation, Daejeon, Republic of Korea
| | - Chang-Kyun Han
- R&D Headquarters, Korea Ginseng Corporation, Daejeon, Republic of Korea
| | - Sun Hee Hyun
- R&D Headquarters, Korea Ginseng Corporation, Daejeon, Republic of Korea
| | - Jae Youl Cho
- Department of Integrative Biotechnology, Sungkyunkwan University, Suwon, Republic of Korea
| |
Collapse
|
39
|
Lee LY, Chou W, Chen WP, Wang MF, Chen YJ, Chen CC, Tung KC. Erinacine A-Enriched Hericium erinaceus Mycelium Delays Progression of Age-Related Cognitive Decline in Senescence Accelerated Mouse Prone 8 (SAMP8) Mice. Nutrients 2021; 13:nu13103659. [PMID: 34684662 PMCID: PMC8537498 DOI: 10.3390/nu13103659] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Revised: 10/12/2021] [Accepted: 10/14/2021] [Indexed: 01/20/2023] Open
Abstract
There have been many reports on the neuroprotective effects of Hericium erinaceus mycelium, in which the most well-known active compounds found are diterpenoids, such as erinacine A. Previously, erinacine A-enriched Hericeum erinaceus mycelium (EAHEM) was shown to decrease amyloid plaque aggregation and improve cognitive disability in Alzheimer’s disease model APP/PS1 mice. However, its effects on brain aging have not yet been touched upon. Here, we used senescence accelerated mouse prone 8 (SAMP8) mice as a model to elucidate the mechanism by which EAHEM delays the aging of the brain. Three-month-old SAMP8 mice were divided into three EAHEM dosage groups, administered at 108, 215 and 431 mg/kg/BW/day, respectively. During the 12th week of EAHEM feeding, learning and memory of the mice were evaluated by single-trial passive avoidance and active avoidance test. After sacrifice, the amyloid plaques, induced nitric oxidase synthase (iNOS) activity, thiobarbituric acid-reactive substances (TBARS) and 8-OHdG levels were analyzed. We found that the lowest dose of 108 mg/kg/BW EAHEM was sufficient to significantly improve learning and memory in the passive and active avoidance tests. In all three EAHEM dose groups, iNOS, TBARS and 8-OHdG levels all decreased significantly and showed a dose-dependent response. The results indicate that EAHEM improved learning and memory and delayed degenerative aging in mice brains.
Collapse
Affiliation(s)
- Li-Ya Lee
- Department of Veterinary Medicine, National Chung Hsing University, Taichung 402204, Taiwan;
| | - Wayne Chou
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 325002, Taiwan; (W.C.); (W.-P.C.)
| | - Wan-Ping Chen
- Biotech Research Institute, Grape King Bio Ltd., Taoyuan 325002, Taiwan; (W.C.); (W.-P.C.)
| | - Ming-Fu Wang
- Department of Food and Nutrition, Providence University, Taichung 433303, Taiwan;
| | - Ying-Ju Chen
- College of Humanities & Social Sciences, Providence University, Taichung 433303, Taiwan;
| | - Chin-Chu Chen
- Institute of Food Science and Technology, National Taiwan University, Taipei 106319, Taiwan;
- Department of Food Science, Nutrition and Nutraceutical Biotechnology, Shih Chien University, Taipei 104336, Taiwan
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan 320314, Taiwan
| | - Kwong-Chung Tung
- Department of Veterinary Medicine, National Chung Hsing University, Taichung 402204, Taiwan;
- Correspondence:
| |
Collapse
|
40
|
Forsyth RG, Krenács T, Athanasou N, Hogendoorn PCW. Cell Biology of Giant Cell Tumour of Bone: Crosstalk between m/wt Nucleosome H3.3, Telomeres and Osteoclastogenesis. Cancers (Basel) 2021; 13:5119. [PMID: 34680268 PMCID: PMC8534144 DOI: 10.3390/cancers13205119] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 10/06/2021] [Accepted: 10/08/2021] [Indexed: 12/14/2022] Open
Abstract
Giant cell tumour of bone (GCTB) is a rare and intriguing primary bone neoplasm. Worrisome clinical features are its local destructive behaviour, its high tendency to recur after surgical therapy and its ability to create so-called benign lung metastases (lung 'plugs'). GCTB displays a complex and difficult-to-understand cell biological behaviour because of its heterogenous morphology. Recently, a driver mutation in histone H3.3 was found. This mutation is highly conserved in GCTB but can also be detected in glioblastoma. Denosumab was recently introduced as an extra option of medical treatment next to traditional surgical and in rare cases, radiotherapy. Despite these new insights, many 'old' questions about the key features of GCTB remain unanswered, such as the presence of telomeric associations (TAs), the reactivation of hTERT, and its slight genomic instability. This review summarises the recent relevant literature of histone H3.3 in relation to the GCTB-specific G34W mutation and pays specific attention to the G34W mutation in relation to the development of TAs, genomic instability, and the characteristic morphology of GCTB. As pieces of an etiogenetic puzzle, this review tries fitting all these molecular features and the unique H3.3 G34W mutation together in GCTB.
Collapse
Affiliation(s)
- Ramses G. Forsyth
- Department of Pathology, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090 Brussels, Belgium;
- Labaratorium for Experimental Pathology (EXPA), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
| | - Tibor Krenács
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllöi ut 26, 1085 Budapest, Hungary;
| | - Nicholas Athanasou
- Department of Histopathology, Nuffield Orthopaedic Centre, University of Oxford, NDORMS, Oxford OX3 7HE, UK;
| | - Pancras C. W. Hogendoorn
- Department of Pathology, University Hospital Brussels (UZB), Laarbeeklaan 101, 1090 Brussels, Belgium;
- Labaratorium for Experimental Pathology (EXPA), Vrije Universiteit Brussel (VUB), Laarbeeklaan 103, 1090 Brussels, Belgium
- 1st Department of Pathology and Experimental Cancer Research, Semmelweis University, Üllöi ut 26, 1085 Budapest, Hungary;
- Department of Histopathology, Nuffield Orthopaedic Centre, University of Oxford, NDORMS, Oxford OX3 7HE, UK;
- Department of Pathology, Leiden University Medical Center (LUMC), Albinusdreef 2, 2300 RC Leiden, The Netherlands
| |
Collapse
|
41
|
Employing Extracellular Matrix-Based Tissue Engineering Strategies for Age-Dependent Tissue Degenerations. Int J Mol Sci 2021; 22:ijms22179367. [PMID: 34502277 PMCID: PMC8431718 DOI: 10.3390/ijms22179367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Tissues and organs are not composed of solely cellular components; instead, they converge with an extracellular matrix (ECM). The composition and function of the ECM differ depending on tissue types. The ECM provides a microenvironment that is essential for cellular functionality and regulation. However, during aging, the ECM undergoes significant changes along with the cellular components. The ECM constituents are over- or down-expressed, degraded, and deformed in senescence cells. ECM aging contributes to tissue dysfunction and failure of stem cell maintenance. Aging is the primary risk factor for prevalent diseases, and ECM aging is directly or indirectly correlated to it. Hence, rejuvenation strategies are necessitated to treat various age-associated symptoms. Recent rejuvenation strategies focus on the ECM as the basic biomaterial for regenerative therapies, such as tissue engineering. Modified and decellularized ECMs can be used to substitute aged ECMs and cell niches for culturing engineered tissues. Various tissue engineering approaches, including three-dimensional bioprinting, enable cell delivery and the fabrication of transplantable engineered tissues by employing ECM-based biomaterials.
Collapse
|
42
|
Hamdan Y, Mazini L, Malka G. Exosomes and Micro-RNAs in Aging Process. Biomedicines 2021; 9:biomedicines9080968. [PMID: 34440172 PMCID: PMC8393989 DOI: 10.3390/biomedicines9080968] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/06/2021] [Accepted: 07/15/2021] [Indexed: 12/14/2022] Open
Abstract
Exosomes are the main actors of intercellular communications and have gained great interest in the new cell-free regenerative medicine. These nanoparticles are secreted by almost all cell types and contain lipids, cytokines, growth factors, messenger RNA, and different non-coding RNA, especially micro-RNAs (mi-RNAs). Exosomes' cargo is released in the neighboring microenvironment but is also expected to act on distant tissues or organs. Different biological processes such as cell development, growth and repair, senescence, migration, immunomodulation, and aging, among others, are mediated by exosomes and principally exosome-derived mi-RNAs. Moreover, their therapeutic potential has been proved and reinforced by their use as biomarkers for disease diagnostics and progression. Evidence has increasingly shown that exosome-derived mi-RNAs are key regulators of age-related diseases, and their involvement in longevity is becoming a promising issue. For instance, mi-RNAs such as mi-RNA-21, mi-RNA-29, and mi-RNA-34 modulate tissue functionality and regeneration by targeting different tissues and involving different pathways but might also interfere with long life expectancy. Human mi-RNAs profiling is effectively related to the biological fluids that are reported differently between young and old individuals. However, their underlying mechanisms modulating cell senescence and aging are still not fully understood, and little was reported on the involvement of mi-RNAs in cell or tissue longevity. In this review, we summarize exosome biogenesis and mi-RNA synthesis and loading mechanism into exosomes' cargo. Additionally, we highlight the molecular mechanisms of exosomes and exosome-derived mi-RNA regulation in the different aging processes.
Collapse
|
43
|
Oxidative Stress Biomarkers in the Relationship between Type 2 Diabetes and Air Pollution. Antioxidants (Basel) 2021; 10:antiox10081234. [PMID: 34439482 PMCID: PMC8388875 DOI: 10.3390/antiox10081234] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 07/27/2021] [Indexed: 12/21/2022] Open
Abstract
The incidence and prevalence of type 2 diabetes have increased in the last decades and are expected to further grow in the coming years. Chronic hyperglycemia triggers free radical generation and causes increased oxidative stress, affecting a number of molecular mechanisms and cellular pathways, including the generation of advanced glycation end products, proinflammatory and procoagulant effects, induction of apoptosis, vascular smooth-muscle cell proliferation, endothelial and mitochondrial dysfunction, reduction of nitric oxide release, and activation of protein kinase C. Among type 2 diabetes determinants, many data have documented the adverse effects of environmental factors (e.g., air pollutants) through multiple exposure-induced mechanisms (e.g., systemic inflammation and oxidative stress, hypercoagulability, and endothelial and immune responses). Therefore, here we discuss the role of air pollution in oxidative stress-related damage to glycemic metabolism homeostasis, with a particular focus on its impact on health. In this context, the improvement of new advanced tools (e.g., omic techniques and the study of epigenetic changes) may provide a substantial contribution, helping in the evaluation of the individual in his biological totality, and offer a comprehensive assessment of the molecular, clinical, environmental, and epidemiological aspects.
Collapse
|
44
|
Zhang Y, Masters L, Wang Y, Wu L, Pei Y, Guo B, Parissenti A, Lees SJ, Wang R, Yang G. Cystathionine gamma-lyase/H 2 S signaling facilitates myogenesis under aging and injury condition. FASEB J 2021; 35:e21511. [PMID: 33826201 DOI: 10.1096/fj.202002675r] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 02/10/2021] [Accepted: 02/22/2021] [Indexed: 12/19/2022]
Abstract
Hydrogen sulfide (H2 S) can be endogenously produced and belongs to the class of signaling molecules known as gasotransmitters. Cystathionine gamma-lyase (CSE)-derived H2 S is implicated in the regulation of cell differentiation and the aging process, but the involvements of the CSE/H2 S system in myogenesis upon aging and injury have not been explored. In this study, we demonstrated that CSE acts as a major H2 S-generating enzyme in skeletal muscles and is significantly down-regulated in aged skeletal muscles in mice. CSE deficiency exacerbated the age-dependent sarcopenia and cardiotoxin-induced injury/regeneration in mouse skeletal muscle, possibly attributed to inefficient myogenesis. In contrast, supplement of NaHS (an H2 S donor) induced the expressions of myogenic genes and promoted muscle regeneration in mice. In vitro, incubation of myoblast cells (C2C12) with H2 S promoted myogenesis, as evidenced by the inhibition of cell cycle progression and migration, altered expressions of myogenic markers, elongation of myoblasts, and formation of multinucleated myotubes. Myogenesis was also found to upregulate CSE expression, while blockage of CSE/H2 S signaling resulted in a suppression of myogenesis. Mechanically, H2 S significantly induced the heterodimer formation between MEF2c and MRF4 and promoted the binding of MEF2c/MRF4 to myogenin promoter. MEF2c was S-sulfhydrated at both cysteine 361 and 420 in the C-terminal transactivation domain, and blockage of MEF2c S-sulfhydration abolished the stimulatory role of H2 S on MEF2c/MRF4 heterodimer formation. These findings support an essential role for H2 S in maintaining myogenesis, presenting it as a potential candidate for the prevention of age-related sarcopenia and treatment of muscle injury.
Collapse
Affiliation(s)
- Yanjie Zhang
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, ON, Canada.,Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, ON, Canada
| | - Laura Masters
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, ON, Canada.,Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, ON, Canada
| | - Yuehong Wang
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, ON, Canada.,Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, ON, Canada
| | - Lingyun Wu
- Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, ON, Canada.,School of Human Kinetics, Laurentian University, Sudbury, ON, Canada.,Health Science North Research Institute, Sudbury, ON, Canada
| | - Yanxi Pei
- School of Life Science, Shanxi University, Taiyuan, China
| | - Baoqing Guo
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, ON, Canada.,Health Science North Research Institute, Sudbury, ON, Canada
| | - Amadeo Parissenti
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, ON, Canada.,Health Science North Research Institute, Sudbury, ON, Canada
| | - Simon J Lees
- Northern Ontario School of Medicine, Thunder Bay, ON, Canada
| | - Rui Wang
- Department of Biology, York University, Toronto, ON, Canada
| | - Guangdong Yang
- Department of Chemistry and Biochemistry, Laurentian University, Sudbury, ON, Canada.,Cardiovascular and Metabolic Research Unit, Laurentian University, Sudbury, ON, Canada
| |
Collapse
|
45
|
Circular RNA Expression: Its Potential Regulation and Function in Abdominal Aortic Aneurysms. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9934951. [PMID: 34306317 PMCID: PMC8263248 DOI: 10.1155/2021/9934951] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 05/30/2021] [Indexed: 12/18/2022]
Abstract
Abdominal aortic aneurysms (AAAs) have posed a great threat to human life, and the necessity of its monitoring and treatment is decided by symptomatology and/or the aneurysm size. Accumulating evidence suggests that circular RNAs (circRNAs) contribute a part to the pathogenesis of AAAs. circRNAs are novel single-stranded RNAs with a closed loop structure and high stability, having become the candidate biomarkers for numerous kinds of human disorders. Besides, circRNAs act as molecular "sponge" in organisms, capable of regulating the transcription level. Here, we characterize that the molecular mechanisms underlying the role of circRNAs in AAA development were further elucidated. In the present work, studies on the biosynthesis, bibliometrics, and mechanisms of action of circRNAs were aims comprehensively reviewed, the role of circRNAs in the AAA pathogenic mechanism was illustrated, and their potential in diagnosing AAAs was examined. Moreover, the current evidence about the effects of circRNAs on AAA development through modulating endothelial cells (ECs), macrophages, and vascular smooth muscle cells (VSMCs) was summarized. Through thorough investigation, the molecular mechanisms underlying the role of circRNAs in AAA development were further elucidated. The results demonstrated that circRNAs had the application potential in the diagnosis and prevention of AAAs in clinical practice. The study of circRNA regulatory pathways would be of great assistance to the etiologic research of AAAs.
Collapse
|
46
|
Xu H, Li S, Liu YS. Roles and Mechanisms of DNA Methylation in Vascular Aging and Related Diseases. Front Cell Dev Biol 2021; 9:699374. [PMID: 34262910 PMCID: PMC8273304 DOI: 10.3389/fcell.2021.699374] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/07/2021] [Indexed: 12/20/2022] Open
Abstract
Vascular aging is a pivotal risk factor promoting vascular dysfunction, the development and progression of vascular aging-related diseases. The structure and function of endothelial cells (ECs), vascular smooth muscle cells (VSMCs), fibroblasts, and macrophages are disrupted during the aging process, causing vascular cell senescence as well as vascular dysfunction. DNA methylation, an epigenetic mechanism, involves the alteration of gene transcription without changing the DNA sequence. It is a dynamically reversible process modulated by methyltransferases and demethyltransferases. Emerging evidence reveals that DNA methylation is implicated in the vascular aging process and plays a central role in regulating vascular aging-related diseases. In this review, we seek to clarify the mechanisms of DNA methylation in modulating ECs, VSMCs, fibroblasts, and macrophages functions and primarily focus on the connection between DNA methylation and vascular aging-related diseases. Therefore, we represent many vascular aging-related genes which are modulated by DNA methylation. Besides, we concentrate on the potential clinical application of DNA methylation to serve as a reliable diagnostic tool and DNA methylation-based therapeutic drugs for vascular aging-related diseases.
Collapse
Affiliation(s)
- Hui Xu
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Aging and Age-Related Disease Research, Central South University, Changsha, China
| | - Shuang Li
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Aging and Age-Related Disease Research, Central South University, Changsha, China
| | - You-Shuo Liu
- Department of Geriatrics, The Second Xiangya Hospital, Central South University, Changsha, China.,Institute of Aging and Age-Related Disease Research, Central South University, Changsha, China
| |
Collapse
|
47
|
Richard D, Capellini TD. Shifting epigenetic contexts influence regulatory variation and disease risk. Aging (Albany NY) 2021; 13:15699-15749. [PMID: 34138751 PMCID: PMC8266365 DOI: 10.18632/aging.203194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/01/2021] [Indexed: 11/25/2022]
Abstract
Epigenetic shifts are a hallmark of aging that impact transcriptional networks at regulatory level. These shifts may modify the effects of genetic regulatory variants during aging and contribute to disease pathomechanism. However, these shifts occur on the backdrop of epigenetic changes experienced throughout an individual's development into adulthood; thus, the phenotypic, and ultimately fitness, effects of regulatory variants subject to developmental- versus aging-related epigenetic shifts may differ considerably. Natural selection therefore may act differently on variants depending on their changing epigenetic context, which we propose as a novel lens through which to consider regulatory sequence evolution and phenotypic effects. Here, we define genomic regions subjected to altered chromatin accessibility as tissues transition from their fetal to adult forms, and subsequently from early to late adulthood. Based on these epigenomic datasets, we examine patterns of evolutionary constraint and potential functional impacts of sequence variation (e.g., genetic disease risk associations). We find that while the signals observed with developmental epigenetic changes are consistent with stronger fitness consequences (i.e., negative selection pressures), they tend to have weaker effects on genetic risk associations for aging-related diseases. Conversely, we see stronger effects of variants with increased local accessibility in adult tissues, strongest in young adult when compared to old. We propose a model for how epigenetic status of a region may influence the effects of evolutionary relevant sequence variation, and suggest that such a perspective on gene regulatory networks may elucidate our understanding of aging biology.
Collapse
Affiliation(s)
- Daniel Richard
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - Terence D Capellini
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA.,Broad Institute of MIT and Harvard, Cambridge, MA 02142, USA
| |
Collapse
|
48
|
Li S, Chen Y, Zhang Y, Qiu F, Zeng F, Shi L. Prenatal exercise reprograms the development of hypertension progress and improves vascular health in SHR offspring. Vascul Pharmacol 2021; 139:106885. [PMID: 34116258 DOI: 10.1016/j.vph.2021.106885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2020] [Revised: 05/12/2021] [Accepted: 06/06/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Upregulation of L-type voltage-gated Ca2+ (CaV1.2) channel in the arterial myocytes is a hallmark feature of hypertension. However, whether maternal exercise during pregnancy has a sustained beneficial effect on the offspring of spontaneously hypertensive rats (SHRs) through epigenetic regulation of CaV1.2 channel is largely unknown. METHODS Pregnant SHRs and Wistar-Kyoto rats were subjected to swimming and the vascular molecular and functional properties of male offspring were evaluated at embryonic (E) 20.5 day, 3 months (3 M), and 6 months (6 M). RESULTS Exercise during pregnancy significantly decreased the resting blood pressure at 3 M but not 6 M in the offspring of SHR. Prenatal exercise significantly reduced the cardiovascular reactivity, the contribution of CaV1.2 channel to the vascular tone, and the whole-cell current density of CaV1.2 channel in both 3 M and 6 M offspring of SHR. Moreover, maternal exercise triggered hypermethylation of the promoter region of the CaV1.2 α1C gene (CACNA1C), with a concomitant decrease in its protein and mRNA expressions in SHR offspring at E20.5, 3 M, and 6 M. Tissue culture experiments further confirmed that 5-Aza-2'-deoxycytidine increased the structure and functional expression of CaV1.2 channel by inhibiting the DNA methylation of CACNA1C. However, the improvement of prenatal exercise on the blood pressure, function, and expression of CaV1.2 channel was attenuated in the offspring of SHRs at 6 M compared to the 3 M readout. CONCLUSIONS These data suggest that prenatal exercise improves the vascular function by the hypermethylation of CACNA1C in the arterial myocytes and delays the development of hypertension in the offspring of SHRs. However, these effects fade out with age.
Collapse
Affiliation(s)
- Shanshan Li
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; Department of Sports and Health, Shandong Sport University, Jinan 250102, China
| | - Yu Chen
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China
| | - Yanyan Zhang
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China
| | - Fang Qiu
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China
| | - Fanxing Zeng
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China
| | - Lijun Shi
- Department of Exercise Physiology, Beijing Sport University, Beijing 100084, China; Key Laboratory of Physical Fitness and Exercise, Ministry of Education, Beijing Sport University, Beijing, China.
| |
Collapse
|
49
|
Pagiatakis C, Musolino E, Gornati R, Bernardini G, Papait R. Epigenetics of aging and disease: a brief overview. Aging Clin Exp Res 2021; 33:737-745. [PMID: 31811572 PMCID: PMC8084772 DOI: 10.1007/s40520-019-01430-0] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Accepted: 11/21/2019] [Indexed: 12/17/2022]
Abstract
Aging is an important risk factor for several human diseases such as cancer, cardiovascular disease and neurodegenerative disorders, resulting from a combination of genetic and environmental factors (e.g., diet, smoking, obesity and stress), which, at molecular level, cause changes in gene expression underlying the decline of physiological function. Epigenetics, which include mechanisms regulating gene expression independently of changes to DNA sequence, regulate gene expression by modulating the structure of chromatin or by regulating the binding of transcriptional machinery to DNA. Several studies showed that an impairment of epigenetic mechanisms promotes alteration of gene expression underlying several aging-related diseases. Alteration of these mechanisms is also linked with changes of gene expression that occurs during aging processes of different tissues. In this review, we will outline the potential role of epigenetics in the onset of two age-related pathologies, cancer and cardiovascular diseases.
Collapse
|
50
|
Hartle L, Charchat-Fichman H. Mild cognitive impairment history and current procedures in low- and middle-income countries: a brief review. Dement Neuropsychol 2021; 15:155-163. [PMID: 34345356 PMCID: PMC8283875 DOI: 10.1590/1980-57642021dn15-020001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 02/07/2021] [Indexed: 12/21/2022] Open
Abstract
Mild cognitive impairment (MCI) is a widely studied concept that has changed over time. Epidemiology, diagnosis, costs, prognostics, screening procedures, and categorization have been extensively discussed. However, unified guidelines are still not available, especially considering differences between low- and middle-income countries (LMIC) and high-income countries (HIC).
Collapse
Affiliation(s)
- Larissa Hartle
- Department of Psychology, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.,Department of Philosophy, Social, Human and Education Sciences, Università degli Studi di Perugia, Perugia, Italy
| | - Helenice Charchat-Fichman
- Department of Psychology, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| |
Collapse
|