1
|
Félix J, Martínez de Toda I, Díaz-Del Cerro E, Gil-Agudo F, De la Fuente M. The immunity and redox clocks in mice, markers of lifespan. Sci Rep 2024; 14:1703. [PMID: 38242936 PMCID: PMC10799057 DOI: 10.1038/s41598-024-51978-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 01/10/2024] [Indexed: 01/21/2024] Open
Abstract
Immune function and redox markers are used for estimating the aging rate, namely biological age (BA). However, it is unknown if this BA and its changes can be reflected in longevity. Thus, we must quantify BA in experimental animals. In peritoneal immune cells of 202 female mice (ICR/CD1) in different ages, 10 immune and 6 redox parameters were evaluated to construct two mathematical models for BA quantification in mice by multiple linear regression. Immune and redox parameters were selected as independent variables and chronological age as dependent, developing two models: the Immunity and the Redox Clocks, reaching both an adjusted R2 of 80.9% and a standard error of 6.38 and 8.57 weeks, respectively. Both models were validated in a different group of healthy mice obtaining a Pearson's correlation coefficient of 0.844 and 0.800 (p < 0.001) between chronological and BA. Furthermore, they were applied to adult prematurely aging mice, which showed a higher BA than non-prematurely aging mice. Moreover, after positive and negative lifestyle interventions, mice showed a lower and higher BA, respectively, than their age-matched controls. In conclusion, the Immunity and Redox Clocks allow BA quantification in mice and both the ImmunolAge and RedoxAge in mice relate to lifespan.
Collapse
Affiliation(s)
- Judith Félix
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), Faculty of Biological Sciences, Complutense University of Madrid, 28040, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital, 12 de Octubre (imas12), 28041, Madrid, Spain
| | - Irene Martínez de Toda
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), Faculty of Biological Sciences, Complutense University of Madrid, 28040, Madrid, Spain.
- Instituto de Investigación Sanitaria Hospital, 12 de Octubre (imas12), 28041, Madrid, Spain.
| | - Estefanía Díaz-Del Cerro
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), Faculty of Biological Sciences, Complutense University of Madrid, 28040, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital, 12 de Octubre (imas12), 28041, Madrid, Spain
| | - Fernando Gil-Agudo
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), Faculty of Biological Sciences, Complutense University of Madrid, 28040, Madrid, Spain
| | - Mónica De la Fuente
- Department of Genetics, Physiology and Microbiology (Animal Physiology Unit), Faculty of Biological Sciences, Complutense University of Madrid, 28040, Madrid, Spain
- Instituto de Investigación Sanitaria Hospital, 12 de Octubre (imas12), 28041, Madrid, Spain
| |
Collapse
|
2
|
Moss CE, Phipps H, Wilson HL, Kiss-Toth E. Markers of the ageing macrophage: a systematic review and meta-analysis. Front Immunol 2023; 14:1222308. [PMID: 37520567 PMCID: PMC10373068 DOI: 10.3389/fimmu.2023.1222308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction Ageing research is establishing macrophages as key immune system regulators that undergo functional decline. Due to heterogeneity between species and tissue populations, a plethora of data exist and the power of scientific conclusions can vary substantially. This meta-analysis by information content (MAIC) and systematic literature review (SLR) aims to determine overall changes in macrophage gene and protein expression, as well as function, with age. Methods PubMed was utilized to collate peer-reviewed literature relating to macrophage ageing. Primary studies comparing macrophages in at least two age groups were included. Data pertaining to gene or protein expression alongside method used were extracted for MAIC analysis. For SLR analysis, data included all macrophage-specific changes with age, as well as species, ontogeny and age of groups assessed. Results A total of 240 studies were included; 122 of which qualified for MAIC. The majority of papers focussed on changes in macrophage count/infiltration as a function of age, followed by gene and protein expression. The MAIC found iNOS and TNF to be the most commonly investigated entities, with 328 genes and 175 proteins showing consistent dysregulation with age across the literature. Overall findings indicate that cytokine secretion and phagocytosis are reduced and reactive oxygen species production is increased in the ageing macrophage. Discussion Collectively, our analysis identifies critical regulators in macrophage ageing that are consistently dysregulated, highlighting a plethora of targets for further investigation. Consistent functional changes with age found here can be used to confirm an ageing macrophage phenotype in specific studies and experimental models.
Collapse
Affiliation(s)
- Charlotte E. Moss
- Department of Infection, Immunity and Cardiovascular Disease, Medical School, University of Sheffield, Sheffield, United Kingdom
- Healthy Lifespan Institute, University of Sheffield, Sheffield, United Kingdom
| | - Hew Phipps
- Department of Infection, Immunity and Cardiovascular Disease, Medical School, University of Sheffield, Sheffield, United Kingdom
| | - Heather L. Wilson
- Department of Infection, Immunity and Cardiovascular Disease, Medical School, University of Sheffield, Sheffield, United Kingdom
- Healthy Lifespan Institute, University of Sheffield, Sheffield, United Kingdom
| | - Endre Kiss-Toth
- Department of Infection, Immunity and Cardiovascular Disease, Medical School, University of Sheffield, Sheffield, United Kingdom
- Healthy Lifespan Institute, University of Sheffield, Sheffield, United Kingdom
| |
Collapse
|
3
|
Suarez LM, Diaz-Del Cerro E, Felix J, Gonzalez-Sanchez M, Ceprian N, Guerra-Perez N, G Novelle M, Martinez de Toda I, De la Fuente M. Sex differences in neuroimmunoendocrine communication. Involvement on longevity. Mech Ageing Dev 2023; 211:111798. [PMID: 36907251 DOI: 10.1016/j.mad.2023.111798] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 03/07/2023] [Accepted: 03/07/2023] [Indexed: 03/13/2023]
Abstract
Endocrine, nervous, and immune systems work coordinately to maintain the global homeostasis of the organism. They show sex differences in their functions that, in turn, contribute to sex differences beyond reproductive function. Females display a better control of the energetic metabolism and improved neuroprotection and have more antioxidant defenses and a better inflammatory status than males, which is associated with a more robust immune response than that of males. These differences are present from the early stages of life, being more relevant in adulthood and influencing the aging trajectory in each sex and may contribute to the different life lifespan between sexes.
Collapse
Affiliation(s)
- Luz M Suarez
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain.
| | - Estefania Diaz-Del Cerro
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain
| | - Judith Felix
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain
| | - Monica Gonzalez-Sanchez
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain
| | - Noemi Ceprian
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain
| | - Natalia Guerra-Perez
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain
| | - Marta G Novelle
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain
| | - Irene Martinez de Toda
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain
| | - Monica De la Fuente
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University, Madrid, Spain; Institute of Investigation Hospital 12 Octubre (imas12), Madrid, Spain.
| |
Collapse
|
4
|
Kodam P, Sai Swaroop R, Pradhan SS, Sivaramakrishnan V, Vadrevu R. Integrated multi-omics analysis of Alzheimer's disease shows molecular signatures associated with disease progression and potential therapeutic targets. Sci Rep 2023; 13:3695. [PMID: 36879094 PMCID: PMC9986671 DOI: 10.1038/s41598-023-30892-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2022] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disease characterized by the formation of amyloid plaques implicated in neuronal death. Genetics, age, and sex are the risk factors attributed to AD. Though omics studies have helped to identify pathways associated with AD, an integrated systems analysis with the available data could help to understand mechanisms, potential biomarkers, and therapeutic targets. Analysis of transcriptomic data sets from the GEO database, and proteomic and metabolomic data sets from literature was performed to identify deregulated pathways and commonality analysis identified overlapping pathways among the data sets. The deregulated pathways included those of neurotransmitter synapses, oxidative stress, inflammation, vitamins, complement, and coagulation pathways. Cell type analysis of GEO data sets showed microglia, endothelial, myeloid, and lymphoid cells are affected. Microglia are associated with inflammation and pruning of synapses with implications for memory and cognition. Analysis of the protein-cofactor network of B2, B6, and pantothenate shows metabolic pathways modulated by these vitamins which overlap with the deregulated pathways from the multi-omics analysis. Overall, the integrated analysis identified the molecular signature associated with AD. Treatment with anti-oxidants, B2, B6, and pantothenate in genetically susceptible individuals in the pre-symptomatic stage might help in better management of the disease.
Collapse
Affiliation(s)
- Pradeep Kodam
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana, 500078, India
| | - R Sai Swaroop
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur, Andhra Pradesh, 515134, India
| | - Sai Sanwid Pradhan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur, Andhra Pradesh, 515134, India
| | - Venketesh Sivaramakrishnan
- Disease Biology Lab, Department of Biosciences, Sri Sathya Sai Institute of Higher Learning, Prasanthi Nilayam, Anantapur, Andhra Pradesh, 515134, India.
| | - Ramakrishna Vadrevu
- Department of Biological Sciences, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Jawahar Nagar, Hyderabad, Telangana, 500078, India.
| |
Collapse
|
5
|
Meng M, Sun Y, Bai Y, Xu J, Sun J, Han L, Sun H, Han R. A polysaccharide from Pleurotus citrinopileatus mycelia enhances the immune response in cyclophosphamide-induced immunosuppressed mice via p62/Keap1/Nrf2 signal transduction pathway. Int J Biol Macromol 2023; 228:165-177. [PMID: 36543297 DOI: 10.1016/j.ijbiomac.2022.12.142] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 11/21/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
The manuscript aimed to study the immunoregulatory activity and the mechanism of the polysaccharide (CMP) from Pleurotus citrinopileatus mycelia. The mice were divided into normal group, model group, different dosage of CMP (50, 100 and 200 mg/kg, respectively) groups and levamisole hydrochloride treated group. The results showed that, compared with the model group, CMP could significantly improve the auricle swelling rate, half hemolysis value and phagocytic index in mice. The indices of immune organs were raised, and tissue damage of spleen was relieved. Splenic Th1 cells were decreased, while Th2 cells were increased, furthermore the proliferation of splenic lymphocytes and the cytotoxicity of NK cells were increased. The levels of interleukin-12 (IL-12), interferon-γ (IFN-γ) and tumor necrosis factor-α (TNF-α) in spleen were decreased, while interleukin-4 (IL-4) and interleukin-10 (IL-10) were increased. In serum and spleen, the levels of catalase (CAT), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px) activities were increased, while the level of malondialdehyde (MDA) was decreased. And the levels of Immunoglobulin were also increased. Western blot showed that CMP had immunoregulatory activity by activating Nrf2, Keap1, p62, HO-1, and NQO1 in the p62/Keap1/Nrf2 signaling pathway. The study proved that CMP could be used as a biological Immune regulating agent.
Collapse
Affiliation(s)
- Meng Meng
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Ying Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Yuhe Bai
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Jin Xu
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Jingge Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Lirong Han
- Key Laboratory of Public Health Safety of Hebei Province, Ministry of Education & College of Public Health, Hebei University, Baoding 071002, China
| | - Huiqing Sun
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Ran Han
- State Key Laboratory of Food Nutrition and Safety, Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Science and Engineering, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China.
| |
Collapse
|
6
|
Olivieri F, Prattichizzo F, Lattanzio F, Bonfigli AR, Spazzafumo L. Antifragility and antiinflammaging: Can they play a role for a healthy longevity? Ageing Res Rev 2023; 84:101836. [PMID: 36574863 DOI: 10.1016/j.arr.2022.101836] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/14/2022] [Accepted: 12/21/2022] [Indexed: 12/25/2022]
Abstract
One of the most exciting challenges of the research on aging is to explain how the environmental factors interact with the genetic background to modulate the chances to reach the extreme limit of human life in healthy conditions. The complex epigenetic mechanisms can explain both the interaction between DNA and environmental factors, and the long-distance persistence of lifestyle effects, due to the so called "epigenetic memory". One of the most extensively investigated theories on aging focuses on the inflammatory responses, suggesting that the age-related progression of low-grade and therefore for long time subclinical, chronic, systemic, inflammatory process, named "inflammaging", could be the most relevant risk factor for the development and progression of the most common age-related diseases and ultimately of death. The results of many studies on long-lived people, especially on centenarians, suggested that healthy old people can cope with inflammaging upregulating the antiinflammaging responses. Overall, a genetic make-up coding for a strong antiinflammaging response and an age-related ability to remodel key metabolic pathways to cope with a plethora of antigens and stressors seem to be the best ways for reach the extreme limit of human lifespan in health status. In this scenario, we wondered if the antifragility concept, recently developed in the framework of business and risk analysis, could add some information to disentangle the heterogeneous nature of the aging process in human. The antifragility is the property of the complex systems to increase their performances because of high stress. Based on this theory we were wondering if some subjects could be able to modulate faster than others their epigenome to cope with a plethora of stressors during life, probably modulating the inflammatory and anti-inflammatory responses. In this framework, antifragility could share some common mechanisms with anti-inflammaging, modulating the ability to restrain the inflammatory responses, so that antifragility and antiinflammaging could be viewed as different pieces of the same puzzle, both impinging upon the chances to travel along the healthy aging trajectory.
Collapse
Affiliation(s)
- Fabiola Olivieri
- Department of Clinical and Molecular Sciences, DISCLIMO, Università Politecnica Delle Marche, Ancona, Italy; Clinica di Medicina di Laboratorio e di Precisione, IRCCS INRCA, Ancona, Italy.
| | | | | | | | | |
Collapse
|
7
|
Santos AL, Sinha S. Ageing, Metabolic Dysfunction, and the Therapeutic Role of Antioxidants. Subcell Biochem 2023; 103:341-435. [PMID: 37120475 DOI: 10.1007/978-3-031-26576-1_15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The gradual ageing of the world population has been accompanied by a dramatic increase in the prevalence of obesity and metabolic diseases, especially type 2 diabetes. The adipose tissue dysfunction associated with ageing and obesity shares many common physiological features, including increased oxidative stress and inflammation. Understanding the mechanisms responsible for adipose tissue dysfunction in obesity may help elucidate the processes that contribute to the metabolic disturbances that occur with ageing. This, in turn, may help identify therapeutic targets for the treatment of obesity and age-related metabolic disorders. Because oxidative stress plays a critical role in these pathological processes, antioxidant dietary interventions could be of therapeutic value for the prevention and/or treatment of age-related diseases and obesity and their complications. In this chapter, we review the molecular and cellular mechanisms by which obesity predisposes individuals to accelerated ageing. Additionally, we critically review the potential of antioxidant dietary interventions to counteract obesity and ageing.
Collapse
Affiliation(s)
- Ana L Santos
- IdISBA - Fundación de Investigación Sanitaria de las Islas Baleares, Palma, Spain.
| | | |
Collapse
|
8
|
Liang Z, Chen Y, Gu R, Guo Q, Nie X. Asiaticoside Prevents Oxidative Stress and Apoptosis in Endothelial Cells by Activating ROS-dependent p53/Bcl-2/Caspase-3 Signaling Pathway. Curr Mol Med 2023; 23:1116-1129. [PMID: 36284389 DOI: 10.2174/1566524023666221024120825] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2022] [Revised: 09/06/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
Abstract
BACKGROUND Asiaticoside (AC) is a triterpenoid saponin found in Centella asiatica (L.) urban extract that has a wide range of pharmacological properties. Our previous study demonstrated that AC could promote angiogenesis in diabetic wounds, but the specific mechanisms remain unknown. OBJECTIVE This study aimed to examine the effectiveness and mechanism of AC on human umbilical vein endothelial cells (HUVECs) exposed to tert-butyl hydroperoxide (t-BHP) toxicity. METHODS Senescence was confirmed using senescence-associated betagalactosidase (SA-β-gal) activity and expression of the cell cycle phase markers p16 and p21. The levels of SOD, NO, MDA, GSH-Px, and ROS were tested. Furthermore, several cell death-related genes and proteins (p53, Bax, Bcl-2 and Caspase-3) were assessed with RT-qPCR and Western blotting. RESULTS AC significantly reduced SA-β-gal activity, with both the suppression of cellcycle inhibitors p16 and p21. We also found that the induced oxidative stress and apoptosis caused by t-BHP treatment resulted in the decrease of antioxidant enzymes activities, the surge of ROS and MDA, the up-regulation of p53, Bax and caspase-3, and the decrease of SOD, NO, GSH-Px and Bcl-2. These biochemical changes were all reversed by treatment with varying doses of AC. CONCLUSION AC alleviates t-BHP-induced oxidative injury and apoptosis in HUVECs through the ROS-dependent p53/Bcl-2/Caspase-3 signaling pathway. It may be a potential antioxidant applied in metabolic disorders and pharmaceutical products.
Collapse
Affiliation(s)
- Zhenwen Liang
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
- Key Laboratory of Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563003, China
- College of Pharmacy, Zunyi Medical University, Zunyi 563003, China
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China
| | - Yu Chen
- Key Laboratory of Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563003, China
- College of Pharmacy, Zunyi Medical University, Zunyi 563003, China
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China
| | - Rifang Gu
- College of Pharmacy, Zunyi Medical University, Zunyi 563003, China
| | - Qi Guo
- College of Rehabilitation Sciences, Shanghai University of Medicine and Health Sciences, Shanghai 201318, China
| | - Xuqiang Nie
- Key Laboratory of Basic Pharmacology of the Ministry of Education, Zunyi Medical University, Zunyi 563003, China
- College of Pharmacy, Zunyi Medical University, Zunyi 563003, China
- Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563003, China
| |
Collapse
|
9
|
Sun Y, Wang X, Liu T, Zhu X, Pan X. The multifaceted role of the SASP in atherosclerosis: from mechanisms to therapeutic opportunities. Cell Biosci 2022; 12:74. [PMID: 35642067 PMCID: PMC9153125 DOI: 10.1186/s13578-022-00815-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Accepted: 05/15/2022] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND The global population of older individuals is growing, and ageing is a key risk factor for atherosclerotic cardiovascular diseases. Abnormal accumulation of senescent cells can cause potentially deleterious effects on the organism with age. As a vital marker of cellular senescence, the senescence-associated secretory phenotype (SASP) is a novel mechanism to link cellular senescence with atherosclerosis. MAIN BODY In this review, we concretely describe the characteristics of the SASP and its regulation mechanisms. Importantly, we provide novel perspectives on how the SASP can promote atherosclerosis. The SASP from different types of senescent cells have vital roles in atherosclerosis progression. As a significant mediator of the harmful effects of senescent cells, it can play a pro-atherogenic role by producing inflammation and immune dysfunction. Furthermore, the SASP can deliver senescence signals to the surrounding vascular cells, gradually contributing to the development of atherosclerosis. Finally, we focus on a variety of novel therapeutic strategies aimed to reduce the burden of atherosclerosis in elderly individuals by targeting senescent cells and inhibiting the regulatory mechanisms of the SASP. CONCLUSION This review systematically summarizes the multiple roles of the SASP in atherosclerosis and can contribute to the exploration of new therapeutic opportunities.
Collapse
Affiliation(s)
- Yu Sun
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xia Wang
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Tianwei Liu
- Institute of Cerebrovascular Diseases, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Xiaoyan Zhu
- Department of Critical Care Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
| | - Xudong Pan
- Department of Neurology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China.
| |
Collapse
|
10
|
Li H, Ren M, He Q, Gao J, Li Q. Revealing the Longevity Code of Humans with up to Extreme Longevity in Guangxi Based on Physical Examination Indicators and Personalized Biomarkers of Aging. BIOMED RESEARCH INTERNATIONAL 2022; 2022:2810379. [PMID: 35607300 PMCID: PMC9124135 DOI: 10.1155/2022/2810379] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 04/28/2022] [Indexed: 02/08/2023]
Abstract
Background The pursuit of health and longevity is the eternal theme of humanity. Guangxi has a remarkable phenomenon of longevity in long-lived regions and ranks with the highest number of longevity villages in China, thus providing a natural advantage for health longevity research. Methods In this study, we selected 117 natives of a longevity area in Guangxi, covering a large age range (38-118 years old) as subjects to measure peripheral leukocyte telomere length (LTL). Nineteen physical examination indicators and two inflammatory factor levels were measured. Results Pearson's analysis revealed a significant negative correlation between age and LTL (r = -0.3694, p = 0.003), as well as alanine aminotransferase, albumin, total bilirubin, direct bilirubin, γ-glutamyltransferase, triglycerides, Interleukin-10, and tumor necrosis factor type-α. Systolic blood pressure and blood urea nitrogen were positively correlated with age. In addition, LTL decreased in people aged 38-89 years, and an upward trend was observed in people aged older than 90 years. Conclusions Longevity individuals have characteristics, such as longer LTL, good hepatic function, and lower triglycerides and inflammation levels.
Collapse
Affiliation(s)
- He Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Minhong Ren
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Qianzu He
- Guangxi University Hospital, Guangxi University, Nanning, China
| | - Jie Gao
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| | - Quanyang Li
- College of Light Industry and Food Engineering, Guangxi University, Nanning, China
| |
Collapse
|
11
|
Mach J, Kane AE, Howlett SE, Sinclair DA, Hilmer SN. Applying the AFRAID and FRIGHT clocks to novel preclinical mouse models of polypharmacy. J Gerontol A Biol Sci Med Sci 2022; 77:1304-1312. [PMID: 35313348 PMCID: PMC9255695 DOI: 10.1093/gerona/glac067] [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: 07/05/2021] [Indexed: 11/28/2022] Open
Abstract
The Frailty Inferred Geriatric Health Timeline (FRIGHT) and Analysis of Frailty and Death (AFRAID) clocks were developed to predict biological age and lifespan, respectively, in mice. Their utility within the context of polypharmacy (≥5 medications), which is very common in older adults, is unknown. In male C57BL/6J(B6) mice administered chronic polypharmacy, monotherapy, and undergoing treatment cessation (deprescribing), we aimed to compare these clocks between treatment groups; investigate whether treatment affected correlation of these clocks with mortality; and explore factors that may explain variation in predictive performance. Treatment (control, polypharmacy, or monotherapy) commenced from age 12 months. At age 21 months, each treatment group was subdivided to continue treatment or have it deprescribed. Frailty index was assessed and informed calculation of the clocks. AFRAID, FRIGHT, frailty index, and mortality age did not differ between continued treatment groups and control. Compared to continued treatment, deprescribing some treatments had inconsistent negative impacts on some clocks and mortality. FRIGHT and frailty index, but not AFRAID, were associated with mortality. The bias and precision of AFRAID as a predictor of mortality varied between treatment groups. Effects of deprescribing some drugs on elements of the clocks, particularly on weight loss, contributed to bias. Overall, in this cohort, FRIGHT and AFRAID measures identified no treatment effects and limited deprescribing effects (unsurprising as very few effects on frailty or mortality), with variable prediction of mortality. These clocks have utility, but context is important. Future work should refine them for intervention studies to reduce bias from specific intervention effects.
Collapse
Affiliation(s)
- John Mach
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Faculty of Medicine and Health, The University of Sydney and Royal North Shore Hospital, St Leonards, New South Wales, Australia
| | - Alice E Kane
- Blavatnik Institute, Dept. of Genetics, Paul F. Glenn Center for Biology of Aging Research at Harvard Medical School, Boston, MA
| | - Susan E Howlett
- Departments of Pharmacology and Medicine (Geriatric Medicine), Dalhousie University, Halifax, Canada
| | - David A Sinclair
- Blavatnik Institute, Dept. of Genetics, Paul F. Glenn Center for Biology of Aging Research at Harvard Medical School, Boston, MA
| | - Sarah N Hilmer
- Laboratory of Ageing and Pharmacology, Kolling Institute of Medical Research, Faculty of Medicine and Health, The University of Sydney and Royal North Shore Hospital, St Leonards, New South Wales, Australia
| |
Collapse
|
12
|
Martínez de Toda I, Ceprián N, Díaz-Del Cerro E, De la Fuente M. The Role of Immune Cells in Oxi-Inflamm-Aging. Cells 2021; 10:2974. [PMID: 34831197 PMCID: PMC8616159 DOI: 10.3390/cells10112974] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/20/2021] [Accepted: 10/30/2021] [Indexed: 02/07/2023] Open
Abstract
Aging is the result of the deterioration of the homeostatic systems (nervous, endocrine, and immune systems), which preserve the organism's health. We propose that the age-related impairment of these systems is due to the establishment of a chronic oxidative stress situation that leads to low-grade chronic inflammation throughout the immune system's activity. It is known that the immune system weakens with age, which increases morbidity and mortality. In this context, we describe how the function of immune cells can be used as an indicator of the rate of aging of an individual. In addition to this passive role as a marker, we describe how the immune system can work as a driver of aging by amplifying the oxidative-inflammatory stress associated with aging (oxi-inflamm-aging) and inducing senescence in far tissue cells. Further supporting our theory, we discuss how certain lifestyle conditions (such as social environment, nutrition, or exercise) can have an impact on longevity by affecting the oxidative and inflammatory state of immune cells, regulating immunosenescence and its contribution to oxi-inflamm-aging.
Collapse
Affiliation(s)
- Irene Martínez de Toda
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain; (N.C.); (E.D.-D.C.); (M.D.l.F.)
- Institute of Investigation 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Noemi Ceprián
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain; (N.C.); (E.D.-D.C.); (M.D.l.F.)
- Institute of Investigation 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Estefanía Díaz-Del Cerro
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain; (N.C.); (E.D.-D.C.); (M.D.l.F.)
- Institute of Investigation 12 de Octubre (i+12), 28041 Madrid, Spain
| | - Mónica De la Fuente
- Department of Genetics, Physiology, and Microbiology (Unit of Animal Physiology), Faculty of Biology, Complutense University of Madrid, 28040 Madrid, Spain; (N.C.); (E.D.-D.C.); (M.D.l.F.)
- Institute of Investigation 12 de Octubre (i+12), 28041 Madrid, Spain
| |
Collapse
|
13
|
Salminen A. Immunosuppressive network promotes immunosenescence associated with aging and chronic inflammatory conditions. J Mol Med (Berl) 2021; 99:1553-1569. [PMID: 34432073 PMCID: PMC8384586 DOI: 10.1007/s00109-021-02123-w] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/21/2021] [Accepted: 07/30/2021] [Indexed: 01/10/2023]
Abstract
The functional competence of the immune system gradually declines with aging, a process called immunosenescence. The age-related remodelling of the immune system affects both adaptive and innate immunity. In particular, a chronic low-grade inflammation, termed inflammaging, is associated with the aging process. Immunosenescence not only is present in inflammaging state, but it also occurs in several pathological conditions in conjunction with chronic inflammation. It is known that persistent inflammation stimulates a counteracting compensatory immunosuppression intended to protect host tissues. Inflammatory mediators enhance myelopoiesis and induce the generation of immature myeloid-derived suppressor cells (MDSC) which in mutual cooperation stimulates the immunosuppressive network. Immunosuppressive cells, especially MDSCs, regulatory T cells (Treg), and M2 macrophages produce immunosuppressive factors, e.g., TGF-β, IL-10, ROS, arginase-1 (ARG1), and indoleamine 2,3-dioxygenase (IDO), which suppress the functions of CD4/CD8T and B cells as well as macrophages, natural killer (NK) cells, and dendritic cells. The immunosuppressive armament (i) inhibits the development and proliferation of immune cells, (ii) decreases the cytotoxic activity of CD8T and NK cells, (iii) prevents antigen presentation and antibody production, and (iv) suppresses responsiveness to inflammatory mediators. These phenotypes are the hallmarks of immunosenescence. Immunosuppressive factors are able to control the chromatin landscape, and thus, it seems that the immunosenescence state is epigenetically regulated.
Collapse
Affiliation(s)
- Antero Salminen
- Department of Neurology, Institute of Clinical Medicine, University of Eastern Finland, P.O. Box 1627, 70211, Kuopio, Finland.
| |
Collapse
|
14
|
Zhao Q, Luo YF, Tian M, Xiao YL, Cai HR, Li H. Activating transcription factor 3 involved in Pseudomonas aeruginosa PAO1-induced macrophage senescence. Mol Immunol 2021; 133:122-127. [PMID: 33640762 DOI: 10.1016/j.molimm.2021.02.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/01/2021] [Accepted: 02/14/2021] [Indexed: 11/25/2022]
Abstract
Pseudomonas aeruginosa (PA) is one of the most prevalent pathogens that cause nosocomial infection in critical patients. Previously, we reported PA induced macrophage to senescence under the circumstance of infection. As an oxidative stress responsiveness element, activating transcription factor 3 (ATF3) might be involved in the macrophage senescence process. To test this presumption, we manipulated the expression of ATF3 in macrophage by using a PAO1 infection system. In the present study, ATF3 expression in macrophage was increased, following the duration and colony counts of PAO1 infection. Knockdown of ATF3 in macrophage resulted in increased percentage of senescent macrophage under PAO1 infection, while overexpressing ATF3 partly blocked PAO1-induced macrophage senescence. In accordance with the senescent phenotype, elevated reactive oxygen species (ROS) production was shown in ATF3 knockdown macrophages. Also, capacity of phagocytosis was also affected by manipulation of ATF3 expression in macrophages, and increased phagocytosed fluorescent beads was found in ATF3 knockdown macrophage. ATF3 might regulate the senescence process through influence on NF-κB translocation. During infection, the overexpression or downregulation of ATF3 in macrophage negatively modulated the translocation of NF-κB p65 and its phosphorylation at Ser-536. As a result, IL-6 and TNFα was elevated, while IL-10 decreased in case of ATF3 knockdown. In conclusion, ATF3 negatively regulates NF-κB translocation and activation, and participates in PA-induced macrophage senescence. As oxidative stress and inflammation induced element, ATF3 may modulate macrophage-related host defense.
Collapse
Affiliation(s)
- Qi Zhao
- Department of Pulmonary and Critical Care Medicine, the Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210008, China
| | - Yi-Feng Luo
- Department of Pulmonary and Critical Care Medicine, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China
| | - Mi Tian
- Department of Pulmonary and Critical Care Medicine, the Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210008, China
| | - Yong-Long Xiao
- Department of Pulmonary and Critical Care Medicine, the Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210008, China
| | - Hou-Rong Cai
- Department of Pulmonary and Critical Care Medicine, the Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210008, China
| | - Hui Li
- Department of Pulmonary and Critical Care Medicine, the Affiliated Drum Tower Hospital, Nanjing University Medical School, Nanjing, 210008, China.
| |
Collapse
|
15
|
Meng J, Liu J, Chen D, Kang J, Huang Y, Li D, Duan Y, Wang J. Integration of lncRNA and mRNA profiles to reveal the protective effects of Codonopsis pilosula extract on the gastrointestinal tract of mice subjected to D‑galactose‑induced aging. Int J Mol Med 2021; 47:1. [PMID: 33448313 PMCID: PMC7834956 DOI: 10.3892/ijmm.2020.4834] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 12/03/2020] [Indexed: 12/11/2022] Open
Abstract
Codonopsis pilosula is a type of traditional Chinese medicine that exerts an anti‑aging effect and can regulate the gastrointestinal (GI) system. The aim of the present study was to investigate the underlying molecular mechanisms responsible for the anti‑aging effects of Codonopsis pilosula in the GI tract of mice with D‑galactose‑induced aging. First, a successful mouse model of aging was established, and Codonopsis pilosula water extract was then used for treatment. The anti‑aging effects of Codonopsis pilosula on the GI tract were then detected from the perspectives of tissue structure, physiological function and cell ultrastructure. Finally, in order to explore the underlying molecular mechanisms, the expression profiles of lncRNAs and mRNAs in the stomach and intestine were examined using microarray technology. A total of 117 (41 lncRNAs and 76 mRNAs) and 168 (85 lncRNA sand 83 mRNAs) differentially expressed genes associated with the anti‑aging effects of Codonopsis pilosula were identified in the stomach and intestine, respectively. Through integrated analysis of the stomach and intestine, 4 hub RNAs, including 1 lncRNA (LOC105243318) and 3 mRNAs (Fam132a, Rorc and 1200016E24Rik) were identified, which may be associated with the anti‑aging effects of Codonopsis pilosula in the GI tract of aging mice. The Kyoto Encyclopedia of Genes and Genomes analysis revealed that the metabolic pathway was an important pathway underlying the anti‑aging effects of Codonopsis pilosula in the GI tract. On the whole, in the present study, 4 hub RNAs associated with these effects and their regulatory networks were found in the GI tract of aging mice. In addition, the metabolic pathway was found to play an important role in these anti‑aging effects in the GI tract.
Collapse
Affiliation(s)
- Jie Meng
- College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Jiajia Liu
- College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Dongmei Chen
- College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Jiachao Kang
- College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Yong Huang
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Dandan Li
- College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Yongqiang Duan
- College of Basic Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| | - Jing Wang
- College of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, P.R. China
| |
Collapse
|
16
|
Moskalec OV. Characteristics of the Immunoresponse in Elderly People and Autoimmunity. ADVANCES IN GERONTOLOGY 2020. [DOI: 10.1134/s2079057020040153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
17
|
Díaz-Del Cerro E, Vida C, Martínez de Toda I, Félix J, De la Fuente M. The use of a bed with an insulating system of electromagnetic fields improves immune function, redox and inflammatory states, and decrease the rate of aging. Environ Health 2020; 19:118. [PMID: 33228714 PMCID: PMC7685570 DOI: 10.1186/s12940-020-00674-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 11/02/2020] [Indexed: 05/07/2023]
Abstract
BACKGROUND The immune system, as a homeostatic system, is an excellent marker of health and has also been proposed as an indicator of the rate of aging. The base of the age-related changes in the immune system, "immunosenescence", is oxidative-inflammatory stress. Studies have shown that long-term exposure to electromagnetic fields (EMFs) produced by technology causes inhibitory effects on the immune response and increases oxidation. The aim of the present study was to investigate the effects of resting on an EMF-insulated system on several immune functions, the oxidative-inflammatory state and subsequently the rate of aging (biological age). METHODS Several immune functions, in peripheral blood neutrophils and mononuclear cells, of 31 volunteers were analyzed before and after 2 months of using a bed with the patented HOGO system, which insulated participants against EMFs. Several oxidative and inflammatory parameters, in whole blood cells, were also studied. The biological age was calculated using a mathematical formula, which was based on several immune function parameters. A placebo group of 11 people using beds without that property were used as a control. RESULTS The results showed a significant improvement of immune functions and antioxidant and anti-inflammatory defenses after using the HOGO system for 2 months. In addition, a decrease in oxidants and pro-inflammatory compounds, a lowering of oxidative damage in lipids and in DNA as well as a reduction of calculated biological age was also observed. The placebo group did not show any changes. CONCLUSIONS In conclusion, 2 months of resting on a bed insulated from EMFs demonstrates improvement in immune function, oxidative-inflammatory state and biological age.
Collapse
Affiliation(s)
- E. Díaz-Del Cerro
- Department of Genetics, Physiology and Microbiology (Unity of Animal Physiology), Faculty of Biology, Complutense University of Madrid (UCM), José Antonio Novais, 12, 28040 Madrid, Spain
| | - C. Vida
- Department of Genetics, Physiology and Microbiology (Unity of Animal Physiology), Faculty of Biology, Complutense University of Madrid (UCM), José Antonio Novais, 12, 28040 Madrid, Spain
- Institute of Investigation 12 de Octubre (i+12), Madrid, Spain
| | - I. Martínez de Toda
- Department of Genetics, Physiology and Microbiology (Unity of Animal Physiology), Faculty of Biology, Complutense University of Madrid (UCM), José Antonio Novais, 12, 28040 Madrid, Spain
- Institute of Investigation 12 de Octubre (i+12), Madrid, Spain
- Applied Molecular Medicine Institute, School of Medicine, Universidad San Pablo CEU, CEU Universities, Madrid, Spain
| | - J. Félix
- Department of Genetics, Physiology and Microbiology (Unity of Animal Physiology), Faculty of Biology, Complutense University of Madrid (UCM), José Antonio Novais, 12, 28040 Madrid, Spain
| | - M. De la Fuente
- Department of Genetics, Physiology and Microbiology (Unity of Animal Physiology), Faculty of Biology, Complutense University of Madrid (UCM), José Antonio Novais, 12, 28040 Madrid, Spain
- Institute of Investigation 12 de Octubre (i+12), Madrid, Spain
| |
Collapse
|
18
|
Chen Y, Zhang S, Zeng B, Zhao J, Yang M, Zhang M, Li Y, Ni Q, Wu D, Li Y. Transplant of microbiota from long-living people to mice reduces aging-related indices and transfers beneficial bacteria. Aging (Albany NY) 2020; 12:4778-4793. [PMID: 32176868 PMCID: PMC7138539 DOI: 10.18632/aging.102872] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 02/20/2020] [Indexed: 12/11/2022]
Abstract
A close relationship between age and gut microbiota exists in invertebrates and vertebrates, including humans. Long-living people are a model for studying healthy aging; they also have a distinctive microbiota structure. The relationship between the microbiota of long-living people and aging phenotype remains largely unknown. Herein, the feces of long-living people were transplanted into mice, which were then examined for aging-related indices and beneficial bacteria. Mice transplanted with fecal matter from long-living people (L group) had greater α diversity, more probiotic genera (Lactobacillus and Bifidobacterium), and short-chain fatty acid producing genera (Roseburia, Faecalibacterium, Ruminococcus, Coprococcus) than the control group. L group mice also accumulated less lipofuscin and β-galactosidase and had longer intestinal villi. This study indicates the effects that the gut microbiota from long-living people have on healthy aging.
Collapse
Affiliation(s)
- Yinfeng Chen
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Siyuan Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Bo Zeng
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Jiangchao Zhao
- Department of Animal Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, USA
| | - Mingyao Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Mingwang Zhang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Yan Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Qingyong Ni
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - De Wu
- Institute of Animal Nutrition, Sichuan Agricultural University, Chengdu, Sichuan, China
| | - Ying Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, Sichuan, China
| |
Collapse
|