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Owen BM, Phie J, Huynh J, Needham S, Fraser C. Evaluation of quantitative biomarkers of aging in human PBMCs. FRONTIERS IN AGING 2023; 4:1260502. [PMID: 37780865 PMCID: PMC10540680 DOI: 10.3389/fragi.2023.1260502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 09/01/2023] [Indexed: 10/03/2023]
Abstract
Functional decline with age contributes significantly to the burden of disease in developed countries. There is growing interest in the development of therapeutic interventions which slow or even reverse aging. Time and cost constraints prohibit the testing of a large number of interventions for health and lifespan extension in model organisms. Cell-based models of aging could enable high throughput testing of potential interventions. Despite extensive reports in the literature of cell properties that correlate with donor age, few are robustly observed across different laboratories. This casts doubt on the extent that aging signatures are captured in cultured cells. We tested molecular changes previously reported to correlate with donor age in peripheral blood mononuclear cells (PBMCs) and evaluated their suitability for inclusion in a panel of functional aging measures. The tested measures spanned several pathways implicated in aging including epigenetic changes, apoptosis, proteostasis, and intracellular communication. Surprisingly, only two markers correlated with donor age. DNA methylation age accurately predicted donor age confirming this is a robust aging biomarker. Additionally, the apoptotic marker CD95 correlated with donor age but only within subsets of PBMCs. To demonstrate cellular rejuvenation in response to a treatment will require integration of multiple read-outs of cell function. However, building a panel of measures to detect aging in cells is challenging and further research is needed to identify robust predictors of age in humans.
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Khalafi M, Akbari A, Symonds ME, Pourvaghar MJ, Rosenkranz SK, Tabari E. Influence of different modes of exercise training on inflammatory markers in older adults with and without chronic diseases: A systematic review and meta-analysis. Cytokine 2023; 169:156303. [PMID: 37467710 DOI: 10.1016/j.cyto.2023.156303] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Revised: 07/01/2023] [Accepted: 07/13/2023] [Indexed: 07/21/2023]
Abstract
INTRODUCTION Ageing can be accompanied by increased inflammation, which contributes to the development of sarcopenia. Exercise training could be effective for preventing sarcopenia and mitigate inflammation and thus a viable intervention in ageing. Therefore, we performed a systematic review and meta-analysis to investigate the effects of exercise training on markers of inflammation including interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP) in older adults (≥65 years). Exercise-based interventions are most successful in preventing the decline in skeletal muscle mass and in preserving or ameliorating functional capacities with increasing age. METHOD PubMed and Web of Science were searched through to December 2021 using "exercise", "inflammatory markers", "elderly", and "randomized controlled trial" to identify randomized trials evaluating the effects of exercise training versus control groups on IL-6, TNF-α, and CRP in older adults with mean ages ≥ 65 yrs. Standardized mean differences (SMD) and 95% confidence intervals (95% CIs) were determined using random effects models. RESULTS Forty studies involving 49 trials and 1,898 older adults were included in the meta-analysis. Overall, exercise training reduced IL-6 [-0.17 (95% CI -0.32 to -0.02), p = 0.02], TNF-α [-0.30 (95% CI -0.46 to -0.13), p = 0.001], and CRP [-0.45 (95% CI -0.61 to -0.29), p = 0.001]. Subgroup analyses showed that IL-6 was reduced significantly by combined training, TNF-α by aerobic training, and CRP by aerobic, resistance, and combined training. In addition, exercise training reduced IL-6 and TNF-α in older adults with chronic diseases, and CRP in older adults with and without chronic diseases. CONCLUSION The current results highlight that exercise training, regardless of exercise type, has small to moderate beneficial effects on markers of inflammation in older adults, particularly in those with chronic diseases.
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Affiliation(s)
- Mousa Khalafi
- Department of Physical Education and Sport Sciences, Faculty of Humanities, University of Kashan, Kashan, Iran.
| | - Amir Akbari
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, Guilan, Iran
| | - Michael E Symonds
- Academic Unit of Population and Lifespan Sciences, Centre for Perinatal Research, School of Medicine, University of Nottingham, Nottingham, United Kingdom
| | - Mohammad Javad Pourvaghar
- Department of Physical Education and Sport Sciences, Faculty of Humanities, University of Kashan, Kashan, Iran
| | - Sara K Rosenkranz
- Department of Kinesiology and Nutrition Sciences, University of Nevada Las Vegas, Las Vegas, NV, United States
| | - Elma Tabari
- Department of Exercise Physiology, Faculty of Sport Sciences, University of Guilan, Guilan, Iran
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Giroud J, Bouriez I, Paulus H, Pourtier A, Debacq-Chainiaux F, Pluquet O. Exploring the Communication of the SASP: Dynamic, Interactive, and Adaptive Effects on the Microenvironment. Int J Mol Sci 2023; 24:10788. [PMID: 37445973 DOI: 10.3390/ijms241310788] [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: 04/30/2023] [Revised: 06/20/2023] [Accepted: 06/25/2023] [Indexed: 07/15/2023] Open
Abstract
Cellular senescence is a complex cell state that can occur during physiological ageing or after exposure to stress signals, regardless of age. It is a dynamic process that continuously evolves in a context-dependent manner. Senescent cells interact with their microenvironment by producing a heterogenous and plastic secretome referred to as the senescence-associated secretory phenotype (SASP). Hence, understanding the cross-talk between SASP and the microenvironment can be challenging due to the complexity of signal exchanges. In this review, we first aim to update the definition of senescence and its associated biomarkers from its discovery to the present day. We detail the regulatory mechanisms involved in the expression of SASP at multiple levels and develop how SASP can orchestrate microenvironment modifications, by focusing on extracellular matrix modifications, neighboring cells' fate, and intercellular communications. We present hypotheses on how these microenvironmental events may affect dynamic changes in SASP composition in return. Finally, we discuss the various existing approaches to targeting SASP and clarify what is currently known about the biological effects of these modified SASPs on the cellular environment.
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Affiliation(s)
- Joëlle Giroud
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
- University of Lille, CNRS, Inserm, Pasteur Institute of Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, 59000 Lille, France
| | - Inès Bouriez
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Hugo Paulus
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Albin Pourtier
- University of Lille, CNRS, Inserm, Pasteur Institute of Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, 59000 Lille, France
| | - Florence Debacq-Chainiaux
- Laboratory of Biochemistry and Cell Biology (URBC), Namur Research Institute for Life Sciences (NARILIS), University of Namur, 5000 Namur, Belgium
| | - Olivier Pluquet
- University of Lille, CNRS, Inserm, Pasteur Institute of Lille, UMR9020-U1277-CANTHER-Cancer Heterogeneity Plasticity and Resistance to Therapies, 59000 Lille, France
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Yagishita M, Tsuboi H, Kuroda Y, Sawabe T, Kawashima A, Kawashima F, Uematsu N, Sato R, Nishiyama T, Terasaki M, Toko H, Honda F, Ohyama A, Abe S, Kitada A, Miki H, Hagiwara S, Kondo Y, Sumida T, Matsumoto I. Clinical features and serum cytokine profiles of elderly-onset adult-onset Still's disease. Sci Rep 2022; 12:21334. [PMID: 36494453 PMCID: PMC9734186 DOI: 10.1038/s41598-022-25514-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2022] [Accepted: 11/30/2022] [Indexed: 12/13/2022] Open
Abstract
Recent studies have suggested that the clinical features of elderly-onset adult-onset Still's disease (AOSD) differ from those of young and middle-aged-onset patients, whereas the details remain unclear, and cytokine profiles of elderly-onset AOSD have not been reported. To clarify the clinical features and cytokine profiles of elderly-onset AOSD, we examined patients with AOSD who developed the disease between January 2006 and September 2021. We divided the patients into the young and middle-aged-onset group (aged < 65 years) and the elderly-onset group (aged ≥ 65 years) and compared the groups in terms of patient characteristics, clinical symptoms, laboratory findings including serum interleukin (IL)-6 and IL-18, treatment, and prognosis. A total of 48 patients were examined (10 in the elderly-onset group). In the elderly-onset group, atypical rash was significantly more frequent, typical rash and splenomegaly were significantly less frequent, white blood cell count and neutrophil ratio were significantly higher and serum IL-6 levels were significantly lower. Serum IL-6 showed a significantly negative correlation with age at onset. Treatment and relapse were comparable between the 2 groups, whereas infections were significantly more frequent in the elderly-onset group. The clinical features and cytokine profiles of elderly-onset AOSD might differ from those of young and middle-aged-onset AOSD.
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Affiliation(s)
- Mizuki Yagishita
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Hiroto Tsuboi
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Yuki Kuroda
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Tomonori Sawabe
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Akira Kawashima
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Fumina Kawashima
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Nana Uematsu
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Ryota Sato
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Taihei Nishiyama
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Mayu Terasaki
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Hirofumi Toko
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Fumika Honda
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Ayako Ohyama
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Saori Abe
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Ayako Kitada
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Haruka Miki
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Shinya Hagiwara
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Yuya Kondo
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Takayuki Sumida
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
| | - Isao Matsumoto
- grid.20515.330000 0001 2369 4728Department of Rheumatology, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki 305-8575 Japan
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Okutucu M, Arpa M. Evaluation of serum semaphorin 3A and interleukin 6 levels in patients with pseudoexfoliation syndrome. Int Ophthalmol 2022; 43:1995-2002. [DOI: 10.1007/s10792-022-02599-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/17/2022] [Indexed: 12/03/2022]
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Van Avondt K, Strecker J, Tulotta C, Minnerup J, Schulz C, Soehnlein O. Neutrophils in aging and aging‐related pathologies. Immunol Rev 2022; 314:357-375. [PMID: 36315403 DOI: 10.1111/imr.13153] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Over the past millennia, life expectancy has drastically increased. While a mere 25 years during Bronze and Iron ages, life expectancy in many European countries and in Japan is currently above 80 years. Such an increase in life expectancy is a result of improved diet, life style, and medical care. Yet, increased life span and aging also represent the most important non-modifiable risk factors for several pathologies including cardiovascular disease, neurodegenerative diseases, and cancer. In recent years, neutrophils have been implicated in all of these pathologies. Hence, this review provides an overview of how aging impacts neutrophil production and function and conversely how neutrophils drive aging-associated pathologies. Finally, we provide a perspective on how processes of neutrophil-driven pathologies in the context of aging can be targeted therapeutically.
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Affiliation(s)
- Kristof Van Avondt
- Institute of Experimental Pathology (ExPat), Centre of Molecular Biology of Inflammation (ZMBE) University of Münster Münster Germany
| | - Jan‐Kolja Strecker
- Department of Neurology with Institute of Translational Neurology University Hospital Münster Münster Germany
| | - Claudia Tulotta
- Institute of Experimental Pathology (ExPat), Centre of Molecular Biology of Inflammation (ZMBE) University of Münster Münster Germany
| | - Jens Minnerup
- Department of Neurology with Institute of Translational Neurology University Hospital Münster Münster Germany
| | - Christian Schulz
- Department of Medicine I University Hospital, Ludwig Maximilian University Munich Germany
- DZHK (German Centre for Cardiovascular Research), partner site Munich Heart Alliance Munich Germany
| | - Oliver Soehnlein
- Institute of Experimental Pathology (ExPat), Centre of Molecular Biology of Inflammation (ZMBE) University of Münster Münster Germany
- Department of Physiology and Pharmacology (FyFa) Karolinska Institute Stockholm Sweden
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Dioum EHM, Schneider KL, Vigerust DJ, Cox BD, Chu Y, Zachwieja JJ, Furman D. Oats Lower Age-Related Systemic Chronic Inflammation (iAge) in Adults at Risk for Cardiovascular Disease. Nutrients 2022; 14:nu14214471. [PMID: 36364734 PMCID: PMC9656573 DOI: 10.3390/nu14214471] [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: 09/21/2022] [Revised: 10/19/2022] [Accepted: 10/21/2022] [Indexed: 11/16/2022] Open
Abstract
Despite being largely preventable, cardiovascular disease (CVD) is still the leading cause of death globally. Recent studies suggest that the immune system, particularly a form of systemic chronic inflammation (SCI), is involved in the mechanisms leading to CVD; thus, targeting SCI may help prevent or delay the onset of CVD. In a recent placebo-controlled randomized clinical trial, an oat product providing 3 g of β-Glucan improved cholesterol low-density lipoprotein (LDL) levels and lowered cardiovascular risk in adults with borderline high cholesterol. Here, we conducted a secondary measurement of the serum samples to test whether the oat product has the potential to reduce SCI and improve other clinical outcomes related to healthy aging. We investigated the effects of the oat product on a novel metric for SCI called Inflammatory Age® (iAge®), derived from the Stanford 1000 Immunomes Project. The iAge® predicts multimorbidity, frailty, immune decline, premature cardiovascular aging, and all-cause mortality on a personalized level. A beneficial effect of the oat product was observed in subjects with elevated levels of iAge® at baseline (>49.6 iAge® years) as early as two weeks post-treatment. The rice control group did not show any significant change in iAge®. Interestingly, the effects of the oat product on iAge® were largely driven by a decrease in the Eotaxin-1 protein, an aging-related chemokine, independent of a person’s gender, body mass index, or chronological age. Thus, we describe a novel anti-SCI role for oats that could have a major impact on functional, preventative, and personalized medicine.
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Affiliation(s)
- El Hadji M Dioum
- Quaker Oats Center of Excellence, PepsiCo Health and Nutrition Sciences, Chicago, IL 60607, USA
| | | | | | - Bryan D Cox
- Edifice Health Inc., San Mateo, CA 94401, USA
| | - YiFang Chu
- Quaker Oats Center of Excellence, PepsiCo Health and Nutrition Sciences, Chicago, IL 60607, USA
| | - Jeffery J Zachwieja
- Quaker Oats Center of Excellence, PepsiCo Health and Nutrition Sciences, Chicago, IL 60607, USA
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Inflammatory gut as a pathologic and therapeutic target in Parkinson’s disease. Cell Death Dis 2022; 8:396. [PMID: 36153318 PMCID: PMC9509357 DOI: 10.1038/s41420-022-01175-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Revised: 08/10/2022] [Accepted: 09/01/2022] [Indexed: 11/13/2022]
Abstract
Parkinson’s disease (PD) remains a significant unmet clinical need. Gut dysbiosis stands as a PD pathologic source and therapeutic target. Here, we assessed the role of the gut-brain axis in PD pathology and treatment. Adult transgenic (Tg) α-synuclein-overexpressing mice served as subjects and were randomly assigned to either transplantation of vehicle or human umbilical cord blood-derived stem cells and plasma. Behavioral and immunohistochemical assays evaluated the functional outcomes following transplantation. Tg mice displayed typical motor and gut motility deficits, elevated α-synuclein levels, and dopaminergic depletion, accompanied by gut dysbiosis characterized by upregulation of microbiota and cytokines associated with inflammation in the gut and the brain. In contrast, transplanted Tg mice displayed amelioration of motor deficits, improved sparing of nigral dopaminergic neurons, and downregulation of α-synuclein and inflammatory-relevant microbiota and cytokines in both gut and brain. Parallel in vitro studies revealed that cultured dopaminergic SH-SY5Y cells exposed to homogenates of Tg mouse-derived dysbiotic gut exhibited significantly reduced cell viability and elevated inflammatory signals compared to wild-type mouse-derived gut homogenates. Moreover, treatment with human umbilical cord blood-derived stem cells and plasma improved cell viability and decreased inflammation in dysbiotic gut-exposed SH-SY5Y cells. Intravenous transplantation of human umbilical cord blood-derived stem/progenitor cells and plasma reduced inflammatory microbiota and cytokine, and dampened α-synuclein overload in the gut and the brain of adult α-synuclein-overexpressing Tg mice. Our findings advance the gut-brain axis as a key pathological origin, as well as a robust therapeutic target for PD. Gut-Brain Axis as a PD Pathologic Source and Therapeutic Target. The PD murine model of α-synuclein overexpression at around 8 weeks of age manifests gut dysbiosis, characterized by inflammation-specific microbiota and cytokines, which can trigger brain neurodegeneration, especially dopaminergic depletion reminiscent of PD pathology. Targeting the dysbiotic gut via intravenous hUCB stem cell transplantation can render gut homeostasis and sequester peripheral as well as central inflammation, leading to brain repair and amelioration of PD behavioral and histological deficits.![]()
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Hong N, Lin Y, Ye Z, Yang C, Huang Y, Duan Q, Xie S. The relationship between dyslipidemia and inflammation among adults in east coast China: A cross-sectional study. Front Immunol 2022; 13:937201. [PMID: 36032093 PMCID: PMC9403313 DOI: 10.3389/fimmu.2022.937201] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 07/07/2022] [Indexed: 11/13/2022] Open
Abstract
Objective Dyslipidemia is one of the major public health problems in China. It is characterized by multisystem dysregulation and inflammation, and oxidant/antioxidant balance has been suggested as an important factor for its initiation and progression. The objective of this study was to determine the relationship between prevalence of dyslipidemia and measured changes in the levels of proinflammatory cytokines (IL-6, TNF-a, and MCP-1), thiobarbituric acid-reactant substances (TBARS), and serum total antioxidant capacity (TAC) in serum samples. Study design A cross-sectional survey with a purposive sampling of 2,631 enrolled participants (age 18–85 years) was performed using the adult population of long-term residents of the municipality of east coast China in Fujian province between the years 2017 and 2019. Information on general health status, dyslipidemia prevalence, and selected mediators of inflammation was collected through a two-stage probability sampling design according to socioeconomic level, sex, and age. Methods The lipid profile was conducted by measuring the levels of total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglycerides (TG) with an autoanalyzer. Dyslipidemia was defined according to National Cholesterol Education Program Adult Treatment Panel III diagnostic criteria, and patients with it were identified by means of a computerized database. Serum parameters including IL-6/TNF-a/MCP-1, TBARS, and TAC were measured in three consecutive years. Familial history, education level, risk factors, etc. were determined. The association between dyslipidemia and serum parameters was explored using multivariable logistic regression models. Sociodemographic, age, and risk factors were also investigated among all participants. Results The mean prevalence of various dyslipidemia in the population at baseline (2017) was as follows: dyslipidemias, 28.50%; hypercholesterolemia, 26.33%; high LDL-C, 26.10%; low HDL-C, 24.44%; and hypertriglyceridemia, 27.77%. A significant effect of aging was found among all male and female participants. The mean levels of serum Il-6/TNF-a/MCP-1 were significantly higher in all the types of dyslipidemia among male participants. Female participants with all types of dyslipidemia but low HDL-C showed an elevation of IL-6 and MCP-1 levels, and those with dyslipidemias and hypercholesterolemia presented higher levels of TNF-a compared to the normal participants. The oxidative stress marker TBARS increased among all types of dyslipidemia except hypertriglyceridemia. All participants with different types of dyslipidemia had a lower total antioxidant capacity. Correlation analysis showed that cytokines and TBARS were positively associated with age, obesity, and diabetes mellitus, but not sex, sedentary leisure lifestyle, hypertension, and CVD/CHD history. The activity of TAC was negatively associated with the above parameters. Conclusions The correlation between the prevalence of dyslipidemia and the modification of inflammation status was statistically significant. The levels of proinflammatory cytokines, oxidative stress, and antioxidant capacity in serum may reflect the severity of the lipid abnormalities. These promising results further warrant a thorough medical screening in enhanced anti-inflammatory and reduced oxidative stress to better diagnose and comprehensively treat dyslipidemia at an early stage.
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Affiliation(s)
- Najiao Hong
- Department of General Medicine, The First Hospital of Quanzhou affiliated to Fujian Medical University, Quanzhou, China
- *Correspondence: Najiao Hong, ; Sixin Xie,
| | - Yongjun Lin
- Department of General Medicine, The First Hospital of Quanzhou affiliated to Fujian Medical University, Quanzhou, China
| | - Zhirong Ye
- Department of General Medicine, The First Hospital of Quanzhou affiliated to Fujian Medical University, Quanzhou, China
| | - Chunbaixue Yang
- Department of Mathematics, Virginia Tech, Blacksburg, VA, United States
| | - Yulong Huang
- Department of General Medicine, The First Hospital of Quanzhou affiliated to Fujian Medical University, Quanzhou, China
| | - Qi Duan
- Department of General Medicine, The First Hospital of Quanzhou affiliated to Fujian Medical University, Quanzhou, China
| | - Sixin Xie
- Department of General Medicine, The First Hospital of Quanzhou affiliated to Fujian Medical University, Quanzhou, China
- *Correspondence: Najiao Hong, ; Sixin Xie,
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Forcina L, Franceschi C, Musarò A. The hormetic and hermetic role of IL-6. Ageing Res Rev 2022; 80:101697. [PMID: 35850167 DOI: 10.1016/j.arr.2022.101697] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 06/24/2022] [Accepted: 07/14/2022] [Indexed: 02/07/2023]
Abstract
Interleukin-6 is a pleiotropic cytokine regulating different tissues and organs in diverse and sometimes discrepant ways. The dual and sometime hermetic nature of IL-6 action has been highlighted in several contexts and can be explained by the concept of hormesis, in which beneficial or toxic effects can be induced by the same molecule depending on the intensity, persistence, and nature of the stimulation. According with hormesis, a low and/or controlled IL-6 release is associated with anti-inflammatory, antioxidant, and pro-myogenic actions, whereas increased systemic levels of IL-6 can induce pro-inflammatory, pro-oxidant and pro-fibrotic responses. However, many aspects regarding the multifaceted action of IL-6 and the complex nature of its signal transduction remains to be fully elucidated. In this review we collect mechanistic insight into the molecular networks contributing to normal or pathologic changes during advancing age and in chronic diseases. We point out the involvement of IL-6 deregulation in aging-related diseases, dissecting the hormetic action of this key mediator in different tissues, with a special focus on skeletal muscle. Since IL-6 can act as an enhancer of detrimental factor associated with both aging and pathologic conditions, such as chronic inflammation and oxidative stress, this cytokine could represent a "Gerokine", a determinant of the switch from physiologic aging to age-related diseases.
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Affiliation(s)
- Laura Forcina
- DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Via A. Scarpa, 14, Rome 00161, Italy.
| | - Claudio Franceschi
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.
| | - Antonio Musarò
- DAHFMO-Unit of Histology and Medical Embryology, Sapienza University of Rome, Laboratory affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Scuola Superiore di Studi Avanzati Sapienza (SSAS), Via A. Scarpa, 14, Rome 00161, Italy.
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Lázničková P, Bendíčková K, Kepák T, Frič J. Immunosenescence in Childhood Cancer Survivors and in Elderly: A Comparison and Implication for Risk Stratification. FRONTIERS IN AGING 2022; 2:708788. [PMID: 35822014 PMCID: PMC9261368 DOI: 10.3389/fragi.2021.708788] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 07/05/2021] [Indexed: 12/14/2022]
Abstract
The population of childhood cancer survivors (CCS) has grown rapidly in recent decades. Although cured of their original malignancy, these individuals are at increased risk of serious late effects, including age-associated complications. An impaired immune system has been linked to the emergence of these conditions in the elderly and CCS, likely due to senescent immune cell phenotypes accompanied by low-grade inflammation, which in the elderly is known as "inflammaging." Whether these observations in the elderly and CCS are underpinned by similar mechanisms is unclear. If so, existing knowledge on immunosenescent phenotypes and inflammaging might potentially serve to benefit CCS. We summarize recent findings on the immune changes in CCS and the elderly, and highlight the similarities and identify areas for future research. Improving our understanding of the underlying mechanisms and immunosenescent markers of accelerated immune aging might help us to identify individuals at increased risk of serious health complications.
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Affiliation(s)
- Petra Lázničková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Biology, Faculty of Medicine, Masaryk University, Brno, Czech Republic
| | - Kamila Bendíčková
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic
| | - Tomáš Kepák
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Department of Pediatric Oncology, University Hospital Brno, Brno, Czech Republic
| | - Jan Frič
- International Clinical Research Center, St. Anne's University Hospital Brno, Brno, Czech Republic.,Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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12
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Patten KT, Valenzuela AE, Wallis C, Harvey DJ, Bein KJ, Wexler AS, Gorin FA, Lein PJ. Hippocampal but Not Serum Cytokine Levels Are Altered by Traffic-Related Air Pollution in TgF344-AD and Wildtype Fischer 344 Rats in a Sex- and Age-Dependent Manner. Front Cell Neurosci 2022; 16:861733. [PMID: 35530180 PMCID: PMC9072828 DOI: 10.3389/fncel.2022.861733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Accepted: 03/24/2022] [Indexed: 11/19/2022] Open
Abstract
Epidemiological studies have demonstrated that air pollution is a significant risk factor for age-related dementia, including Alzheimer's disease (AD). It has been posited that traffic-related air pollution (TRAP) promotes AD neuropathology by exacerbating neuroinflammation. To test this hypothesis, serum and hippocampal cytokines were quantified in male and female TgF344-AD rats and wildtype (WT) Fischer 344 littermates exposed to TRAP or filtered air (FA) from 1 to 15 months of age. Luminex™ rat 23-cytokine panel assays were used to measure the levels of hippocampal and serum cytokines in 3-, 6-, 10-, and 15-month-old rats (corresponding to 2, 5, 9, and 14 months of exposure, respectively). Age had a pronounced effect on both serum and hippocampal cytokines; however, age-related changes in hippocampus were not mirrored in the serum and vice versa. Age-related changes in serum cytokine levels were not influenced by sex, genotype, or TRAP exposure. However, in the hippocampus, in 3-month-old TgF344-AD and WT animals, TRAP increased IL-1ß in females while increasing TNF ɑin males. In 6-month-old animals, TRAP increased hippocampal levels of M-CSF in TgF344-AD and WT females but had no significant effect in males. At 10 and 15 months of age, there were minimal effects of TRAP, genotype or sex on hippocampal cytokines. These observations demonstrate that TRAP triggers an early inflammatory response in the hippocampus that differs with sex and age and is not reflected in the serum cytokine profile. The relationship of TRAP effects on cytokines to disease progression remains to be determined.
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Affiliation(s)
- Kelley T. Patten
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Anthony E. Valenzuela
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
| | - Christopher Wallis
- Air Quality Research Center, University of California, Davis, Davis, CA, United States
| | - Danielle J. Harvey
- Department of Public Health Sciences, School of Medicine, University of California, Davis, Davis, CA, United States
| | - Keith J. Bein
- Air Quality Research Center, University of California, Davis, Davis, CA, United States
- Center for Health and the Environment, University of California, Davis, Davis, CA, United States
| | - Anthony S. Wexler
- Air Quality Research Center, University of California, Davis, Davis, CA, United States
- Mechanical and Aerospace Engineering, Civil and Environmental Engineering, College of Engineering, University of California, Davis, Davis, CA, United States
- Land, Air and Water Resources, College of Agricultural and Environmental Sciences, University of California, Davis, Davis, CA, United States
| | - Fredric A. Gorin
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
- Department of Neurology, Davis School of Medicine, University of California, Sacramento, Sacramento, CA, United States
| | - Pamela J. Lein
- Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, Davis, CA, United States
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Guerville F, Bourdel-Marchasson I, Déchanet-Merville J, Pellegrin I, Soubeyran P, Appay V, Lemoine M. Does Inflammation Contribute to Cancer Incidence and Mortality during Aging? A Conceptual Review. Cancers (Basel) 2022; 14:cancers14071622. [PMID: 35406394 PMCID: PMC8996949 DOI: 10.3390/cancers14071622] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/11/2022] [Accepted: 03/19/2022] [Indexed: 11/16/2022] Open
Abstract
Aging is associated with chronic low-grade inflammation, cancer incidence and mortality. As inflammation contributes to cancer initiation and progression, one could hypothesize that age-associated chronic low-grade inflammation contributes to the increase in cancer incidence and/or mortality observed during aging. Here, we review the evidence supporting this hypothesis: (1) epidemiological associations between biomarkers of systemic inflammation and cancer incidence and mortality in older people, (2) therapeutic clues suggesting that targeting inflammation could reduce cancer incidence and mortality and (3) experimental evidence from animal models highlighting inflammation as a link between various mechanisms of aging and cancer initiation and progression. Despite a large body of literature linking aging, inflammation and cancer, convincing evidence for the clear implication of specific inflammatory pathways explaining cancer incidence or mortality during aging is still lacking. Further dedicated research is needed to fill these gaps in evidence and pave the way for the development of applications in clinical care.
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Affiliation(s)
- Florent Guerville
- ImmunoConcEpT, CNRS UMR5164, INSERM ERL1303, Université de Bordeaux, F-33076 Bordeaux, France; (J.D.-M.); (I.P.); (V.A.); (M.L.)
- Clinical Gerontology Department, Bordeaux University Hospital, F-33000 Bordeaux, France;
- Correspondence:
| | - Isabelle Bourdel-Marchasson
- Clinical Gerontology Department, Bordeaux University Hospital, F-33000 Bordeaux, France;
- CRMSB, CNRS UMR 5536, Université de Bordeaux, F-33000 Bordeaux, France
| | - Julie Déchanet-Merville
- ImmunoConcEpT, CNRS UMR5164, INSERM ERL1303, Université de Bordeaux, F-33076 Bordeaux, France; (J.D.-M.); (I.P.); (V.A.); (M.L.)
| | - Isabelle Pellegrin
- ImmunoConcEpT, CNRS UMR5164, INSERM ERL1303, Université de Bordeaux, F-33076 Bordeaux, France; (J.D.-M.); (I.P.); (V.A.); (M.L.)
- Laboratory of Immunology and Immunogenetics, Bordeaux University Hospital, F-33000 Bordeaux, France
| | - Pierre Soubeyran
- Department of Medical Oncology, Institut Bergonie, F-33076 Bordeaux, France;
| | - Victor Appay
- ImmunoConcEpT, CNRS UMR5164, INSERM ERL1303, Université de Bordeaux, F-33076 Bordeaux, France; (J.D.-M.); (I.P.); (V.A.); (M.L.)
| | - Maël Lemoine
- ImmunoConcEpT, CNRS UMR5164, INSERM ERL1303, Université de Bordeaux, F-33076 Bordeaux, France; (J.D.-M.); (I.P.); (V.A.); (M.L.)
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14
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Hernandez-Baixauli J, Abasolo N, Palacios-Jordan H, Foguet-Romero E, Suñol D, Galofré M, Caimari A, Baselga-Escudero L, Del Bas JM, Mulero M. Imbalances in TCA, Short Fatty Acids and One-Carbon Metabolisms as Important Features of Homeostatic Disruption Evidenced by a Multi-Omics Integrative Approach of LPS-Induced Chronic Inflammation in Male Wistar Rats. Int J Mol Sci 2022; 23:ijms23052563. [PMID: 35269702 PMCID: PMC8910732 DOI: 10.3390/ijms23052563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 02/21/2022] [Accepted: 02/23/2022] [Indexed: 12/02/2022] Open
Abstract
Chronic inflammation is an important risk factor in a broad variety of physical and mental disorders leading to highly prevalent non-communicable diseases (NCDs). However, there is a need for a deeper understanding of this condition and its progression to the disease state. For this reason, it is important to define metabolic pathways and complementary biomarkers associated with homeostatic disruption in chronic inflammation. To achieve that, male Wistar rats were subjected to intraperitoneal and intermittent injections with saline solution or increasing lipopolysaccharide (LPS) concentrations (0.5, 5 and 7.5 mg/kg) thrice a week for 31 days. Biochemical and inflammatory parameters were measured at the end of the study. To assess the omics profile, GC-qTOF and UHPLC-qTOF were performed to evaluate plasma metabolome; 1H-NMR was used to evaluate urine metabolome; additionally, shotgun metagenomics sequencing was carried out to characterize the cecum microbiome. The chronicity of inflammation in the study was evaluated by the monitoring of monocyte chemoattractant protein-1 (MCP-1) during the different weeks of the experimental process. At the end of the study, together with the increased levels of MCP-1, levels of interleukin-6 (IL-6), tumour necrosis factor alpha (TNF-α) and prostaglandin E2 (PGE2) along with 8-isoprostanes (an indicative of oxidative stress) were significantly increased (p-value < 0.05). The leading features implicated in the current model were tricarboxylic acid (TCA) cycle intermediates (i.e., alpha-ketoglutarate, aconitic acid, malic acid, fumaric acid and succinic acid); lipids such as specific cholesterol esters (ChoEs), lysophospholipids (LPCs) and phosphatidylcholines (PCs); and glycine, as well as N, N-dimethylglycine, which are related to one-carbon (1C) metabolism. These metabolites point towards mitochondrial metabolism through TCA cycle, β-oxidation of fatty acids and 1C metabolism as interconnected pathways that could reveal the metabolic effects of chronic inflammation induced by LPS administration. These results provide deeper knowledge concerning the impact of chronic inflammation on the disruption of metabolic homeostasis.
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Affiliation(s)
- Julia Hernandez-Baixauli
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, 43204 Reus, Spain; (J.H.-B.); (A.C.); (L.B.-E.)
| | - Nerea Abasolo
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain; (N.A.); (H.P.-J.); (E.F.-R.)
| | - Hector Palacios-Jordan
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain; (N.A.); (H.P.-J.); (E.F.-R.)
| | - Elisabet Foguet-Romero
- Eurecat, Centre Tecnològic de Catalunya, Centre for Omic Sciences (COS), Joint Unit Universitat Rovira i Virgili-EURECAT, 43204 Reus, Spain; (N.A.); (H.P.-J.); (E.F.-R.)
| | - David Suñol
- Eurecat, Centre Tecnològic de Catalunya, Digital Health, 08005 Barcelona, Spain; (D.S.); (M.G.)
| | - Mar Galofré
- Eurecat, Centre Tecnològic de Catalunya, Digital Health, 08005 Barcelona, Spain; (D.S.); (M.G.)
| | - Antoni Caimari
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, 43204 Reus, Spain; (J.H.-B.); (A.C.); (L.B.-E.)
| | - Laura Baselga-Escudero
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, 43204 Reus, Spain; (J.H.-B.); (A.C.); (L.B.-E.)
| | - Josep M Del Bas
- Eurecat, Centre Tecnològic de Catalunya, Unitat de Nutrició i Salut, 43204 Reus, Spain; (J.H.-B.); (A.C.); (L.B.-E.)
- Correspondence: (J.M.D.B.); (M.M.)
| | - Miquel Mulero
- Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
- Correspondence: (J.M.D.B.); (M.M.)
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15
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Samson LD, Buisman A, Ferreira JA, Picavet HSJ, Verschuren WMM, Boots AMH, Engelfriet P. Inflammatory marker trajectories associated with frailty and ageing in a 20‐year longitudinal study. Clin Transl Immunology 2022; 11:e1374. [PMID: 35154709 PMCID: PMC8826353 DOI: 10.1002/cti2.1374] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Revised: 01/06/2022] [Accepted: 01/18/2022] [Indexed: 12/24/2022] Open
Abstract
Objective The aim of this exploratory study was to investigate the development of low‐grade inflammation during ageing and its relationship with frailty. Methods The trajectories of 18 inflammatory markers measured in blood samples, collected at 5‐year intervals over a period of 20 years from 144 individuals aged 65–75 years at the study endpoint, were related to the degree of frailty later in life. Results IFN‐γ‐related markers and platelet activation markers were found to change in synchrony. Chronically elevated levels of IL‐6 pathway markers, such as CRP and sIL‐6R, were associated with more frailty, poorer lung function and reduced physical strength. Being overweight was a possible driver of these associations. More and stronger associations were detected in women, such as a relation between increasing sCD14 levels and frailty, indicating a possible role for monocyte overactivation. Multivariate prediction of frailty confirmed the main results, but predictive accuracy was low. Conclusion In summary, we documented temporal changes in and between inflammatory markers in an ageing population over a period of 20 years, and related these to clinically relevant health outcomes.
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Affiliation(s)
- Leonard Daniël Samson
- National Institute of Public Health and the Environment Bilthoven The Netherlands
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen The Netherlands
| | - Anne‐Marie Buisman
- National Institute of Public Health and the Environment Bilthoven The Netherlands
| | - José A Ferreira
- National Institute of Public Health and the Environment Bilthoven The Netherlands
| | - H Susan J Picavet
- National Institute of Public Health and the Environment Bilthoven The Netherlands
| | - W M Monique Verschuren
- National Institute of Public Health and the Environment Bilthoven The Netherlands
- Julius Center for Health Sciences and Primary Care University Medical Center Utrecht Utrecht University Utrecht The Netherlands
| | - Annemieke MH Boots
- Department of Rheumatology and Clinical Immunology University of Groningen University Medical Center Groningen The Netherlands
| | - Peter Engelfriet
- National Institute of Public Health and the Environment Bilthoven The Netherlands
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16
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Edes AN, Brand CM. Age, sex, and inflammatory markers predict chronic conditions, cardiac disease, and mortality among captive western lowland gorillas (Gorilla gorilla gorilla). Primates 2021; 62:931-943. [PMID: 34460009 DOI: 10.1007/s10329-021-00942-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Accepted: 08/12/2021] [Indexed: 01/22/2023]
Abstract
In humans, inflammatory markers predict health risks. As great apes experience many similar conditions, measuring inflammation may provide valuable health information. We examined four serum inflammatory markers in zoo-housed gorillas (n = 48): albumin, CRP, IL-6, and TNF-α. We first analyzed age- and sex-associated patterns, then used multimodel inference to evaluate models with age, sex, and inflammatory markers as predictors of all-cause morbidity, cardiac disease, and mortality. Older gorillas had lower albumin and higher IL-6, and males had higher albumin, lower CRP, and lower TNF-α. All-cause morbidity was best predicted by age, sex, and TNF-α, but the second model containing only age and sex was equivalent. Cardiac disease was best predicted by TNF-α alongside age and sex, with lower levels associated with increased risk. When outliers were removed, the model with TNF-α was second to the model containing only age and sex. Finally, mortality risk was best predicted by the model with only age and sex. Other models containing individual inflammatory markers were within top model sets for each health outcome. Our results indicate that age and sex are robust for predicting all-cause morbidity and mortality risk in gorillas; while models which include individual inflammatory markers also predict risk, they may not improve predictions over age and sex alone. However, given the prevalence of cardiac disease in great apes, these results suggest that TNF-α warrants further investigation. With their potential to provide valuable health information, data on inflammatory markers may contribute to the care and management of gorillas in human care.
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Affiliation(s)
- Ashley N Edes
- Center for Species Survival, Smithsonian Conservation Biology Institution, Front Royal, VA, USA.
- Department of Anthropology, The Ohio State University, Columbus, OH, USA.
- Department of Reproductive and Behavioral Sciences, Saint Louis Zoo, Saint Louis, MO, USA.
| | - Colin M Brand
- Department of Anthropology, University of Oregon, Eugene, OR, USA
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17
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Saikiran G, Mitra P, Sharma S, Kumar PK, Sharma P. Selenium, oxidative stress and inflammatory markers in handicraft workers occupationally exposed to lead. ARCHIVES OF ENVIRONMENTAL & OCCUPATIONAL HEALTH 2021; 77:561-567. [PMID: 34423749 DOI: 10.1080/19338244.2021.1968780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Occupational Lead (Pb) exposure increases reactive oxygen species and has been reported to impact inflammatory response by modulating intracellular signaling pathways. Selenium (Se) a vital component of the antioxidant system that plays an important role in modulating cytokines. The present study evaluated Se, malondialdehyde (MDA), total antioxidant capacity (TAC) and cytokines (IL-6, TNF-α, IL-10, IL-17a) in 81 Pb exposed male workers. The median (range) of blood lead level (BLL) and Se were 5 (0.50-31.76) µg/dL and 104 (46.9-189.6) µg/L respectively. The Se, TAC levels were decreased, and MDA, IL-6 levels were increased in the high Pb group (>5μg/dL). Blood lead level independently predicted oxidative stress and antioxidant status. Selenium, TAC levels negatively and MDA, IL-6 levels positively correlated with BLL. Association of Se with IL-6 and TAC suggests some probable role of Se in the underlined mechanism of Pb toxicity.
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Affiliation(s)
- Gangam Saikiran
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Prasenjit Mitra
- Department of Biochemistry, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Shailja Sharma
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Pvsn Kiran Kumar
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
| | - Praveen Sharma
- Department of Biochemistry, All India Institute of Medical Sciences Jodhpur, Jodhpur, Rajasthan, India
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Rizka A, Setiati S, Sadikin M, Mansur IG. Immunomodulatory effect of in vitro calcitriol in fit and frail elderly. Int Immunopharmacol 2021; 96:107737. [PMID: 33965881 DOI: 10.1016/j.intimp.2021.107737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 04/25/2021] [Accepted: 04/26/2021] [Indexed: 11/18/2022]
Abstract
INTRODUCTION Effect of calcitriol on PBMCs of healthy adults have been well studied but not much is known about its effect on the PBMCs of elderly patients with various degree of frailty syndrome and immune senescence. This study was aimed to assess the effect of in vitro calcitriol immunomodulatory effect on IL-6, IL-10 and IFN-γ in elderly patients who were fit, pre-frail and frail to see which group of patients might get the most benefit of calcitriol. METHODS This study was an experimental study on the PBMCs of 24 elderly people, of which 8 subjects each were in fit, pre-frail and frail categories based on the Cardiovascular Health Study criteria. IL-6, IL-10, and IFN-γ were examined by ELISA, before and after administration of lipopolysaccharide and 100 pg/mL calcitriol into PBMC cultures in vitro. RESULT The mean serum vitamin D level was 26.2 (2.4) ng/ml. Vitamin D level is decreasing along with worsening of frailty status. After LPS induction, calcitriol did not reduce IL-6 and IFN-γ in all the groups. Calcitriol increased IL-10 in all groups, with the most observed change in the pre-frail group. CONCLUSION In vitro administration of calcitriol showed anti-inflammatory potential by increasing IL-10 mainly in pre-frail subjects.
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Affiliation(s)
- Aulia Rizka
- Division of Geriatric Medicine, Department of Internal Medicine Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo National Hospital, Jakarta 10430, Indonesia; Metabolic Vascular and Aging Cluster, Indonesian Medical Education and Research Institute Faculty of Medicine Universitas Indonesia, Jakarta 10430, Indonesia.
| | - Siti Setiati
- Division of Geriatric Medicine, Department of Internal Medicine Faculty of Medicine Universitas Indonesia, Cipto Mangunkusumo National Hospital, Jakarta 10430, Indonesia
| | - M Sadikin
- Department of Biochemistry Faculty of Medicine Universitas Indonesia, Jakarta 10430, Indonesia
| | - Indra G Mansur
- Department of Biology Faculty of Medicine Universitas Indonesia, Jakarta 10430, Indonesia
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Hallmarks of aging and immunosenescence: Connecting the dots. Cytokine Growth Factor Rev 2021; 59:9-21. [PMID: 33551332 DOI: 10.1016/j.cytogfr.2021.01.006] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 01/24/2021] [Indexed: 12/11/2022]
Abstract
Aging is a natural physiological process that features various and variable challenges, associated with loss of homeostasis within the organism, often leading to negative consequences for health. Cellular senescence occurs when cells exhaust the capacity to renew themselves and their tissue environment as the cell cycle comes to a halt. This process is influenced by genetics, metabolism and extrinsic factors. Immunosenescence, the aging of the immune system, is a result of the aging process, but can also in turn act as a secondary inducer of senescence within other tissues. This review aims to summarize the current state of knowledge regarding hallmarks of aging in relation to immunosenescence, with a focus on aging-related imbalances in the medullary environment, as well as the components of the innate and adaptive immune responses. Aging within the immune system alters its functionality, and has consequences for the person's ability to fight infections, as well as for susceptibility to chronic diseases such as cancer and cardiovascular disease. The senescence-associated secretory phenotype is described, as well as the involvement of this phenomenon in the paracrine induction of senescence in otherwise healthy cells. Inflammaging is discussed in detail, along with the comorbidities associated with this process. A knowledge of these processes is required in order to consider possible targets for the application of senotherapeutic agents - interventions with the potential to modulate the senescence process, thus prolonging the healthy lifespan of the immune system and minimizing the secondary effects of immunosenescence.
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Bouamama S, Merzouk H, Latrech H, Charif N, Bouamama A. Royal jelly alleviates the detrimental effects of aging on immune functions by enhancing the in vitro cellular proliferation, cytokines, and nitric oxide release in aged human PBMCS. J Food Biochem 2021; 45:e13619. [PMID: 33491244 DOI: 10.1111/jfbc.13619] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 12/12/2020] [Accepted: 01/04/2021] [Indexed: 12/19/2022]
Abstract
Aging strongly delays the immunity. Our research aims to assess the in vitro effects of royal jelly (RJ) on the immune function of aged PBMCs. PBMCs were obtained from 10 healthy aged and young donors by the gradient density centrifugation method and further cultured in RPMI-1640 medium supplemented with or without RJ in the presence of Con A. Cell proliferation was assessed by MTT assay along with the measurement of interleukins, Nitric oxide (NO), Glutathione (GSH), and Malondialdehydes (MDA). Our results showed that RJ improved PBMCs proliferation significantly in the elderly subjects, accompanied by the increase in NO (p = .001) and the release of IL-2, IL-4, and IL-6 cytokines. RJ also increased the intracellular GSH (p = .001) and MDA (p = .001) levels in aged PBMCs. In young subjects, RJ enhanced PBMCs proliferation potency, IL-4, IL-6, GSH, and intracellular MDA levels but with a concomitant decrease in NO and IL-2 cytokine secretion as compared with non RJ-treated cells. In conclusion, RJ restored functions of the aged PBMCs as well as the young control subjects, indicating a beneficial effect on immune status during the aging process. PRACTICAL APPLICATIONS: Royal jelly is a well-known edible dietary compound, used traditionally to treat many diseases throughout the world. Since antiquity, it was shown to have medicinal importance. The immuno-enhancing potential of this food was largely and scientifically established by the lipid and protein fractions. The present study illustrates the anti-aging and stimulatory effects of the fresh RJ whole extract, from local Algerian honey bee: Apis mellifera intermissa, on the immunity of aged men. This study provides the experimental evidence supporting anti-immunosenesence effects of royal jelly. RJ supplementation can be used in the old age management and human age-related complications, especially, associated with the weaknesses of the immune response.
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Affiliation(s)
- Samia Bouamama
- Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou-Bekr Belkaid University, Tlemcen, Algeria.,Research Laboratory of Physiology, Physiopathology, and Biochemistry of Nutrition, Abou-Bekr Belkaid University, Tlemcen, Algeria
| | - Hafida Merzouk
- Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou-Bekr Belkaid University, Tlemcen, Algeria.,Research Laboratory of Physiology, Physiopathology, and Biochemistry of Nutrition, Abou-Bekr Belkaid University, Tlemcen, Algeria
| | - Hamidou Latrech
- Institute of Veterinary Sciences, Blida University, Blida, Algeria
| | - Naima Charif
- Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, Abou-Bekr Belkaid University, Tlemcen, Algeria.,Research Laboratory of Physiology, Physiopathology, and Biochemistry of Nutrition, Abou-Bekr Belkaid University, Tlemcen, Algeria
| | - Amina Bouamama
- Department of Foreign Languages, Literatures and Languages Faculty, Abou-Bekr Belkaid University, Tlemcen, Algeria
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Wilms E, An R, Smolinska A, Stevens Y, Weseler AR, Elizalde M, Drittij MJ, Ioannou A, van Schooten FJ, Smidt H, Masclee AAM, Zoetendal EG, Jonkers DMAE. Galacto-oligosaccharides supplementation in prefrail older and healthy adults increased faecal bifidobacteria, but did not impact immune function and oxidative stress. Clin Nutr 2021; 40:3019-3031. [PMID: 33509667 DOI: 10.1016/j.clnu.2020.12.034] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 12/16/2020] [Accepted: 12/23/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND & AIMS Ageing is associated with an increased risk of frailty, intestinal microbiota perturbations, immunosenescence and oxidative stress. Prebiotics such as galacto-oligosaccharides (GOS) may ameliorate these ageing-related alterations. We aimed to compare the faecal microbiota composition, metabolite production, immune and oxidative stress markers in prefrail elderly and younger adults, and investigate the effects of GOS supplementation in both groups. METHODS In a randomised controlled cross-over study, 20 prefrail elderly and 24 healthy adults received 21.6 g/day Biotis™ GOS (containing 15.0 g/day GOS) or placebo. Faecal 16S rRNA gene-based microbiota and short-chain fatty acids were analysed at 0, 1 and 4 weeks of intervention.Volatile organic compounds were analysed in breath, and stimulated cytokine production, CRP, malondialdehyde, trolox equivalent antioxidant capacity (TEAC) and uric acid (UA) in blood at 0 and 4 weeks. RESULTS Principle coordinate analysis showed differences in microbial composition between elderly and adults (P≤0.05), with elderly having lower bifidobacteria (P≤0.033) at baseline. In both groups, GOS affected microbiota composition (P≤0.05), accompanied by increases in bifidobacteria (P<0.001) and decreased microbial diversity (P≤0.023). Faecal and breath metabolites, immune and oxidative stress markers neither differed between groups (P ≥ 0.125) nor were affected by GOS (P ≥ 0.236). TEAC values corrected for UA were higher in elderly versus adults (P<0.001), but not different between interventions (P ≥ 0.455). CONCLUSIONS Elderly showed lower faecal bifidobacterial (relative) abundance than adults, which increased after GOS intake in both groups. Faecal and breath metabolites, parameters of immune function and oxidative stress were not different at baseline, and not impacted by GOS supplementation. CLINICALTRIALS. GOV WITH STUDY ID NUMBER NCT03077529.
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Affiliation(s)
- Ellen Wilms
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands.
| | - Ran An
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, the Netherlands
| | - Agnieszka Smolinska
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Yala Stevens
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Antje R Weseler
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Montserrat Elizalde
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Marie-José Drittij
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Athanasia Ioannou
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, the Netherlands
| | - Frederik J van Schooten
- Department of Pharmacology and Toxicology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Hauke Smidt
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, the Netherlands
| | - Ad A M Masclee
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
| | - Erwin G Zoetendal
- Laboratory of Microbiology, Wageningen University & Research, Wageningen, the Netherlands
| | - Daisy M A E Jonkers
- Division Gastroenterology-Hepatology, Department of Internal Medicine, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, the Netherlands
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22
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Celestrin CP, Rocha GZ, Stein AM, Guadagnini D, Tadelle RM, Saad MJA, Oliveira AG. Effects of a four week detraining period on physical, metabolic, and inflammatory profiles of elderly women who regularly participate in a program of strength training. Eur Rev Aging Phys Act 2020; 17:12. [PMID: 32863968 PMCID: PMC7450596 DOI: 10.1186/s11556-020-00244-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 08/14/2020] [Indexed: 01/06/2023] Open
Abstract
Background Human aging has innumerable health implications, including loss of muscle mass and increased circulating inflammatory markers. Resistance exercise in the elderly can prevent muscle mass loss and improve the inflammatory profile. Conversely, detraining can reverse this picture. Thus, there is a strong need for studies with the elderly population to clarify the real impacts of a training interruption. Therefore, the objective of this study was to analyze the inflammatory profile of resistance trained elderly women after 4 weeks of detraining. Methods Seventeen elderly women with regular participation in an exercise program participated in the study. Body mass index (BMI), physical activity level assessments, total cholesterol and its fractions, triglycerides, glycemia and insulin blood levels, IL-1β, IL-4, IL-6, IL-10, IL-13, TNF-α, IFNγ, and MCP-1 were assessed before and after the detraining protocol. Results The 4 week detraining period decreased physical fitness without altering body mass and BMI. The short detraining period was able to induce some metabolic disturbances in elderly women who regularly participate in a program of strength training, such as increasing HOMA-IR (0.72 ± 0.14 to 0.81 ± 0.23; p = 0.029), and increasing total blood cholesterol (178.21 ± 23.64 to 220.90 ± 64.98 mg/dL; p = 0.008) and LDL fraction (111.79 ± 21.09 to 155.33 ± 60.95 mg/dL; p = 0.048). No alteration in levels of inflammatory cytokines was observed, however, this detraining period significantly reduced IL-13 (44.84 ± 100.85 to 35.84 ± 78.89 pg/mL; p = 0.031) a Th2 cytokine that induces M2 macrophage polarization. Conclusions These data demonstrate that even a short period of detraining is harmful for elderly women who regularly participate in a program of strength training, since it impairs physical performance, insulin sensitivity and cholesterol metabolism.
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Affiliation(s)
- Carolina P Celestrin
- Department of Physical Education, Bioscience Institute, Sao Paulo State University (UNESP), Rio Claro, SP 13506-900 Brazil
| | - Guilherme Z Rocha
- Department of Physical Education, Bioscience Institute, Sao Paulo State University (UNESP), Rio Claro, SP 13506-900 Brazil.,Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Angelica M Stein
- Department of Physical Education, Bioscience Institute, Sao Paulo State University (UNESP), Rio Claro, SP 13506-900 Brazil.,The Human Performance Research Group, Technological Federal University of Paraná, Curitiba, Brazil
| | - Dioze Guadagnini
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Rafael M Tadelle
- Department of Physical Education, Bioscience Institute, Sao Paulo State University (UNESP), Rio Claro, SP 13506-900 Brazil
| | - Mario J A Saad
- Department of Internal Medicine, State University of Campinas, Campinas, Brazil
| | - Alexandre G Oliveira
- Department of Physical Education, Bioscience Institute, Sao Paulo State University (UNESP), Rio Claro, SP 13506-900 Brazil.,Department of Internal Medicine, State University of Campinas, Campinas, Brazil
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23
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Johnson BZ, Stevenson AW, Prêle CM, Fear MW, Wood FM. The Role of IL-6 in Skin Fibrosis and Cutaneous Wound Healing. Biomedicines 2020; 8:biomedicines8050101. [PMID: 32365896 PMCID: PMC7277690 DOI: 10.3390/biomedicines8050101] [Citation(s) in RCA: 177] [Impact Index Per Article: 44.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 04/20/2020] [Accepted: 04/23/2020] [Indexed: 12/12/2022] Open
Abstract
The timely resolution of wound healing is critical for restoring the skin as a protective barrier. The switch from a proinflammatory to a reparative microenvironment must be tightly regulated. Interleukin (IL)-6 is a key modulator of the inflammatory and reparative process: it is involved in the differentiation, activation, and proliferation of leukocytes, endothelial cells, keratinocytes, and fibroblasts. This review examines the role of IL-6 in the healing of cutaneous wounds, and how dysregulation of IL-6 signaling can lead to either fibrosis or a failure to heal. The role of an IL-6/TGF-β feedback loop is discussed in the context of fibrogenesis, while IL-6 expression and responses in advanced age, diabetes, and obesity is outlined regarding the development of chronic wounds. Current research on therapies that modulate IL-6 is explored. Here, we consider IL-6′s diverse impact on cutaneous wound healing.
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Affiliation(s)
- Blair Z. Johnson
- School of Biomedical Sciences, University of Western Australia, Crawley, WA 6009, Australia; (A.W.S.); (C.M.P.); (M.W.F.); (F.M.W.)
- Correspondence:
| | - Andrew W. Stevenson
- School of Biomedical Sciences, University of Western Australia, Crawley, WA 6009, Australia; (A.W.S.); (C.M.P.); (M.W.F.); (F.M.W.)
| | - Cecilia M. Prêle
- School of Biomedical Sciences, University of Western Australia, Crawley, WA 6009, Australia; (A.W.S.); (C.M.P.); (M.W.F.); (F.M.W.)
- Institute for Respiratory Health, University of Western Australia, Crawley, WA 6009, Australia
| | - Mark W. Fear
- School of Biomedical Sciences, University of Western Australia, Crawley, WA 6009, Australia; (A.W.S.); (C.M.P.); (M.W.F.); (F.M.W.)
| | - Fiona M. Wood
- School of Biomedical Sciences, University of Western Australia, Crawley, WA 6009, Australia; (A.W.S.); (C.M.P.); (M.W.F.); (F.M.W.)
- WA Department of Health, 189 Royal St, East Perth, WA 6004, Australia
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24
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Kim DH, Bang E, Arulkumar R, Ha S, Chung KW, Park MH, Choi YJ, Yu BP, Chung HY. Senoinflammation: A major mediator underlying age-related metabolic dysregulation. Exp Gerontol 2020; 134:110891. [PMID: 32114077 DOI: 10.1016/j.exger.2020.110891] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 02/14/2020] [Accepted: 02/26/2020] [Indexed: 02/06/2023]
Abstract
Chronic inflammation is a complex and unresolved inflammatory response with low-grade multivariable patterns that aggravate systemic pathophysiological conditions and the aging process. To redefine and delineate these age-related complex inflammatory phenomena at the molecular, cellular, and systemic levels, the concept of "Senoinflammation" was recently formulated. In this review, we describe the accumulated data on both the multiphase systemic inflammatory process and the cellular proinflammatory signaling pathway. We also describe the proinflammatory mechanisms underlying the metabolic molecular pathways in aging. Additionally, we review age-related lipid accumulation, the role of the inflammatory senescence-associated secretory phenotype (SASP), the involvement of cytokine/chemokine secretion, endoplasmic reticulum (ER) stress, insulin resistance, and autophagy. The last section of the review highlights the modulation of the senoinflammatory process by the anti-aging and anti-inflammatory action of calorie restriction (CR). Evidence from aging and CR research strongly suggests that SASP from senescent cells may be the major source of secreted cytokines and chemokines during aging. A better understanding of the mechanisms underpinning the senoinflammatory response and the mitigating role of CR will provide insights into the molecular mechanisms of chronic inflammation and aging for potential interventions.
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Affiliation(s)
- Dae Hyun Kim
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea
| | - EunJin Bang
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea
| | - Radha Arulkumar
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea
| | - Sugyeong Ha
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea
| | - Ki Wung Chung
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea; Department of Pharmacy, College of Pharmacy, Kyungsung University, Nam-gu, Busan 48434, Republic of Korea
| | - Min Hi Park
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea
| | - Yeon Ja Choi
- Department of Biopharmaceutical Engineering, Division of Chemistry and Biotechnology, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Byung Pal Yu
- Department of Physiology, The University of Texas Health Science Center at San Antonio, TX 78229, USA
| | - Hae Young Chung
- Department of Pharmacy, College of Pharmacy, Pusan National University, 2, Busandaehak-ro 63beon-gi, Geumjeong-Gu, Busan 46241, Republic of Korea.
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25
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van Splunter M, Perdijk O, Fick-Brinkhof H, Floris-Vollenbroek EG, Meijer B, Brugman S, Savelkoul HFJ, van Hoffen E, Joost van Neerven RJ. Plasmacytoid dendritic cell and myeloid dendritic cell function in ageing: A comparison between elderly and young adult women. PLoS One 2019; 14:e0225825. [PMID: 31830086 PMCID: PMC6907850 DOI: 10.1371/journal.pone.0225825] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 11/12/2019] [Indexed: 12/24/2022] Open
Abstract
Ageing is associated with a changing immune system, leading to inflammageing (increased levels of inflammation markers in serum) and immunosenescence (reduced immune cells and reduced responses towards pathogens). This results in reduced vaccination responses and increased infections in elderly. Much is known about the adaptive immune system upon ageing, but less is known about the innate immune system. Therefore, the aim of this study was to compare innate immune function of Toll like receptor (TLR)-mediated responses between elderly and young adult women. To this end, elderly and young adult women were compared to study the effect of ageing on the relative prevalence and reactivity to TLR-mediated responses of myeloid- and plasmacytoid dendritic cells (mDC, pDC). In addition, TLR expression and inflammatory markers in serum were investigated. Elderly women had reduced numbers of circulating pDCs. In addition, pDCs and mDCs of elderly women responded differently towards TLR stimulation, especially TLR7/8 mediated stimulation was reduced, compared to young adults. In serum, markers involved in inflammation were generally increased in elderly. In conclusion, this study confirms and extends the knowledge about immunosenescence and inflammageing on innate immunity in elderly women.
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Affiliation(s)
| | - Olaf Perdijk
- Cell Biology and Immunology, Wageningen University, Wageningen, The Netherlands
| | | | | | - Ben Meijer
- Cell Biology and Immunology, Wageningen University, Wageningen, The Netherlands
| | - Sylvia Brugman
- Cell Biology and Immunology, Wageningen University, Wageningen, The Netherlands
| | | | | | - R. J. Joost van Neerven
- Cell Biology and Immunology, Wageningen University, Wageningen, The Netherlands
- FrieslandCampina, Amersfoort, The Netherlands
- * E-mail:
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26
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Furman D, Campisi J, Verdin E, Carrera-Bastos P, Targ S, Franceschi C, Ferrucci L, Gilroy DW, Fasano A, Miller GW, Miller AH, Mantovani A, Weyand CM, Barzilai N, Goronzy JJ, Rando TA, Effros RB, Lucia A, Kleinstreuer N, Slavich GM. Chronic inflammation in the etiology of disease across the life span. Nat Med 2019; 25:1822-1832. [PMID: 31806905 DOI: 10.1038/s41591-019-0675-0] [Citation(s) in RCA: 1937] [Impact Index Per Article: 387.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 10/31/2019] [Indexed: 02/06/2023]
Abstract
Although intermittent increases in inflammation are critical for survival during physical injury and infection, recent research has revealed that certain social, environmental and lifestyle factors can promote systemic chronic inflammation (SCI) that can, in turn, lead to several diseases that collectively represent the leading causes of disability and mortality worldwide, such as cardiovascular disease, cancer, diabetes mellitus, chronic kidney disease, non-alcoholic fatty liver disease and autoimmune and neurodegenerative disorders. In the present Perspective we describe the multi-level mechanisms underlying SCI and several risk factors that promote this health-damaging phenotype, including infections, physical inactivity, poor diet, environmental and industrial toxicants and psychological stress. Furthermore, we suggest potential strategies for advancing the early diagnosis, prevention and treatment of SCI.
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Affiliation(s)
- David Furman
- Buck Institute for Research on Aging, Novato, CA, USA. .,Stanford 1000 Immunomes Project, Institute for Immunity, Transplantation and Infection, Stanford University School of Medicine, Stanford, CA, USA. .,Institute for Research in Translational Medicine, Universidad Austral, CONICET, Pilar, Buenos Aires, Argentina. .,Iuve Inc., San Mateo, CA, USA.
| | - Judith Campisi
- Buck Institute for Research on Aging, Novato, CA, USA.,Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Eric Verdin
- Buck Institute for Research on Aging, Novato, CA, USA
| | - Pedro Carrera-Bastos
- Center for Primary Health Care Research, Lund University/Region Skåne, Skåne University Hospital, Malmö, Sweden
| | - Sasha Targ
- Iuve Inc., San Mateo, CA, USA.,Medical Scientist Training Program, University of California, San Francisco, San Francisco, CA, USA
| | - Claudio Franceschi
- IRCCS Institute of Neurological Sciences of Bologna, Bologna, Italy.,Department of Applied Mathematics and Laboratory of Systems Biology of Aging, Lobachevsky University, Nizhny Novgorod, Russia
| | - Luigi Ferrucci
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD, USA
| | - Derek W Gilroy
- Centre for Clinical Pharmacology and Therapeutics, Division of Medicine, University College London, London, UK
| | - Alessio Fasano
- MassGeneral Hospital for Children, Harvard Medical School, Boston, MA, USA
| | - Gary W Miller
- Department of Environmental Health Sciences, School of Public Health, Columbia University Medical Center, New York, NY, USA
| | - Andrew H Miller
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Alberto Mantovani
- Humanitas Clinical and Research Center, Rozzano, Milan, Italy.,Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Milan, Italy.,William Harvey Research Institute, Barts and the London School of Medicine, Queen Mary University, London, UK
| | - Cornelia M Weyand
- Division of Immunology and Rheumatology, Department of Medicine, Stanford University, Stanford, CA, USA
| | - Nir Barzilai
- Departments of Medicine and Genetics, Albert Einstein College of Medicine, New York, NY, USA
| | - Jorg J Goronzy
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, CA, USA
| | - Thomas A Rando
- Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, CA, USA.,Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA.,Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA, USA
| | - Rita B Effros
- Department of Pathology, University of California, Los Angeles, Los Angeles, CA, USA
| | - Alejandro Lucia
- Faculty of Sport Sciences, Universidad Europea de Madrid, Madrid, Spain.,Research Institute of the Hospital 12 de Octubre (i+12), Madrid, Spain
| | - Nicole Kleinstreuer
- Biostatistics and Computational Biology Branch, Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC, USA.,NTP Interagency Center for the Evaluation of Alternative Toxicological Methods, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, NC, USA
| | - George M Slavich
- Cousins Center for Psychoneuroimmunology and Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, Los Angeles, CA, USA
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27
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Kishore D, Gopal A, Gambhir I, Diwaker A. Aging immunity, immunosenescence, or inflamm-aging: A comparative study of cytokines. ACTA ACUST UNITED AC 2019. [DOI: 10.4103/jms.jms_32_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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28
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Alipour S, Sakhinia E, Khabbazi A, Samadi N, Babaloo Z, Azad M, Abolhasani S, Farhadi J, Jadideslam G, Roshanravan N, Nouri M. Methylation status of interleukin-6 gene promoter in patients with Behçet's disease. ACTA ACUST UNITED AC 2018; 16:229-234. [PMID: 30076035 DOI: 10.1016/j.reuma.2018.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2017] [Revised: 05/07/2018] [Accepted: 06/22/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND IL-6 mRNA expression is significantly high in many autoimmune diseases such as Behçet's disease; this is often related with more aggressive phenotypes. Nevertheless, the essential molecular process for its high expression has not been completely realized. The aim of this study was undertaken to estimate the gene copy number variation and promoter methylation to IL-6's high expression. METHODS This study was performed on 51 patients and 61 healthy controls. Initially, DNA and RNA were extracted from all specimens. Promoter methylation levels of IL-6 were evaluated by MeDIP-qPCR technique. Also, IL-6 gene expression was measured by Real-time PCR. After that, we evaluated the relationship between gene expression and methylation, as well as their relationship with clinical specification. RESULTS As we expected, the expression level of IL-6 gene increased significantly in the patient group compared to the healthy subjects. Also, the relative promoter methylation level of the IL-6 mRNA was significantly lower in patient group compared to healthy group (p<0.001). DISCUSSION We disclosed that the promoter hypomethylation may be considered as one of the main defects for IL-6 mRNA high expression in patients with Behçet's disease.
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Affiliation(s)
- Shahriar Alipour
- Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Iran; Connective Tissue Diseases Research Center, Tabriz University of Medical Science, Iran
| | - Ebrahim Sakhinia
- Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Khabbazi
- Connective Tissue Diseases Research Center, Tabriz University of Medical Science, Iran
| | - Nasser Samadi
- Cancer Biochemistry, Cancer Biotechnology, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Zohreh Babaloo
- Department of Immunology Medicine Faculty, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mahdi Azad
- Department of Medical Laboratory Sciences, Faculty of Allied Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Somayeh Abolhasani
- Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Jafar Farhadi
- Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Iran; Connective Tissue Diseases Research Center, Tabriz University of Medical Science, Iran
| | - Golamreza Jadideslam
- Molecular Medicine, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Iran; Connective Tissue Diseases Research Center, Tabriz University of Medical Science, Iran
| | - Neda Roshanravan
- Cardiovascular Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Nouri
- Department of Biochemistry, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
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29
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The Role of Immunosenescence in Neurodegenerative Diseases. Mediators Inflamm 2018; 2018:6039171. [PMID: 29706800 PMCID: PMC5863336 DOI: 10.1155/2018/6039171] [Citation(s) in RCA: 79] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 12/15/2017] [Accepted: 01/17/2018] [Indexed: 12/15/2022] Open
Abstract
Aging is characterized by the progressive decline of physiological function and tissue homeostasis leading to increased vulnerability, degeneration, and death. Aging-related changes of the innate and adaptive immune system include decline in the preservation and enhancement of many immune functions, such as changes in the number of circulating monocytic and dendritic cells, thymic involution, T cell polyfunctionality, or production of proinflammatory cytokines, and are defined as immunosenescence. Inflammatory functions are increased with age, causing the chronic low-grade inflammation, referred to as inflamm-aging, that contribute, together with immunosenescence, to neurodegenerative diseases. In this review, we discuss the link between the immune and nervous systems and how the immunosenescence and inflamm-aging can contribute to neurodegenerative diseases.
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30
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Interleukin-6 is increased in plasma and cerebrospinal fluid of community-dwelling domestic dogs with acute ischaemic stroke. Neuroreport 2018; 28:134-140. [PMID: 28079628 PMCID: PMC5287423 DOI: 10.1097/wnr.0000000000000728] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Inflammatory cytokines are potential modulators of infarct progression in acute ischaemic stroke, and are therefore possible targets for future treatment strategies. Cytokine studies in animal models of surgically induced stroke may, however, be influenced by the fact that the surgical intervention itself contributes towards the cytokine response. Community-dwelling domestic dogs suffer from spontaneous ischaemic stroke, and therefore, offer the opportunity to study the cytokine response in a noninvasive set-up. The aims of this study were to investigate cytokine concentrations in plasma and cerebrospinal fluid (CSF) in dogs with acute ischaemic stroke and to search for correlations between infarct volume and cytokine concentrations. Blood and CSF were collected from dogs less than 72 h after a spontaneous ischaemic stroke. Infarct volumes were estimated on MRIs. Interleukin (IL)-2, IL-6, IL-8, IL-10 and tumour necrosis factor in the plasma, CSF and brain homogenates were measured using a canine-specific multiplex immunoassay. IL-6 was significantly increased in plasma (P=0.04) and CSF (P=0.04) in stroke dogs compared with healthy controls. The concentrations of other cytokines, such as tumour necrosis factor and IL-2, were unchanged. Plasma IL-8 levels correlated significantly with infarct volume (Spearman’s r=0.8, P=0.013). The findings showed increased concentrations of IL-6 in the plasma and CSF of dogs with acute ischaemic stroke comparable to humans. We believe that dogs with spontaneous stroke offer a unique, noninvasive means of studying the inflammatory processes that accompany stroke while reducing confounds that are unavoidable in experimental models.
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31
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A shift in the IL-6/STAT3 signalling pathway imbalance towards the SHP2 pathway in severe asthma results in reduced proliferation process. Cell Signal 2017; 43:47-54. [PMID: 29242170 DOI: 10.1016/j.cellsig.2017.12.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Revised: 11/16/2017] [Accepted: 12/08/2017] [Indexed: 12/07/2022]
Abstract
BACKGROUND Bronchial fibroblasts are the main structural cells responsible for extracellular matrix production and turnover in lung tissue. They play a key role in airway remodelling in asthma through different cytokines including interleukin (IL-6). OBJECTIVE To decipher IL-6 signalling in bronchial fibroblasts obtained from severe eosinophilic asthmatics compared to mild asthmatics and healthy controls. METHODS Human bronchial fibroblasts were isolated from bronchial biopsies of mild and severe eosinophilic asthmatics and non-atopic healthy controls. IL-6 was assessed by qRT-PCR and ELISA. Phosphorylated STAT3, SHP2 and p38/MAPK were evaluated by Western blot. Chemical inhibitors for SHP2 and p38 were used. Fibroblast proliferation was evaluated by BrdU incorporation test. RESULTS IL-6 release was significantly increased in fibroblasts from mild and severe asthmatics compared to healthy controls. Fibroblasts from severe asthmatics showed a reduced STAT3 activation compared to mild asthmatics and healthy controls. Constitutive activation of phosphatase SHP2 was found to negatively regulate IL-6 induced STAT3 phosphorylation in fibroblasts from severe asthmatics. This effect was accompanied by a decrease in fibroblast proliferation rate due to the activated p38/mitogen-activated protein kinase. SHP2 and p38/MAPK specific inhibitors (PHPS1 and SB212190) significantly induce a restoration of STAT3 phosphorylation, IL-6 target gene expression and cell proliferation. CONCLUSION These data show dysregulated IL-6 signalling in bronchial fibroblasts derived from severe eosinophilic asthmatic subjects involving the protein tyrosine phosphatase SHP2 and p38MAPK. Collectively, our data provides new insights into the mechanisms by which bronchial fibroblasts regulate airway remodelling in severe asthma.
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Elisia I, Lam V, Hofs E, Li MY, Hay M, Cho B, Brooks-Wilson A, Rosin M, Bu L, Jia W, Krystal G. Effect of age on chronic inflammation and responsiveness to bacterial and viral challenges. PLoS One 2017; 12:e0188881. [PMID: 29186188 PMCID: PMC5706672 DOI: 10.1371/journal.pone.0188881] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 11/14/2017] [Indexed: 02/06/2023] Open
Abstract
To identify reliable biomarkers of age-related changes in chronic inflammation and responsiveness to bacterial and viral challenges, we evaluated endogenous and ex vivo stimulated levels of 18 inflammatory markers, using whole blood collected in EDTA and sodium heparin tubes from 41 healthy volunteers, i.e., 11 men + 10 women aged 20–35 and 10 men + 10 women aged 50–77. These studies revealed significant differences in the levels of inflammatory markers when blood was collected in EDTA versus sodium heparin and age related differences in these biomarkers were confirmed with blood collected in EDTA from 120 healthy volunteers in 3 age categories, ie, 20 men + 20 women, aged 20–35, 36–49 and 50–77. Studies with unstimulated blood samples, to measure levels of chronic inflammation, revealed a significant increase with age in IL-12p70, CRP and PGE2, consistent with the concept of “inflammaging”, and a decrease in G-CSF in both men and women. Interestingly, in response to E. coli stimulation, PGE2 levels were markedly reduced in the 50–77 year old cohort while they were increased following Herpes Simplex virus-1 (HSV-1) stimulation, along with IL-8. In addition, unlike E. coli, HSV-1 potently stimulated IFNα production, but levels were dramatically reduced in the older cohort, consistent with a reduced ability to generate an anti-viral response. We also found platelets and CD8+ T cells were reduced with age while CD4+ T cells were significantly increased, resulting in a substantially higher CD4/CD8 ratio in the older cohort. Surprisingly, however, we found that the older cohort exhibited more T cell proliferation and IFNγ production in response to anti-CD3+anti-CD28 stimulation. Importantly, there was considerable person-to-person variation in these inflammatory markers in all age groups, making possible comparisons between a person’s “inflammage” and chronological age. These assays should help to identify individuals at high risk of autoimmune disorders and cancer.
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Affiliation(s)
- Ingrid Elisia
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Vivian Lam
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Elyse Hofs
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Michael Yu Li
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Mariah Hay
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Brandon Cho
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Angela Brooks-Wilson
- Genome Sciences Centre, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
- Department of Biomedical Physiology and Kinesiology, Simon Fraser University, Burnaby, British Columbia, Canada
| | - Miriam Rosin
- Cancer Control Research, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
| | - Luke Bu
- Brain Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - William Jia
- Brain Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Gerald Krystal
- The Terry Fox Laboratory, British Columbia Cancer Agency, Vancouver, British Columbia, Canada
- * E-mail:
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Guillory B, Chen JA, Patel S, Luo J, Splenser A, Mody A, Ding M, Baghaie S, Anderson B, Iankova B, Halder T, Hernandez Y, Garcia JM. Deletion of ghrelin prevents aging-associated obesity and muscle dysfunction without affecting longevity. Aging Cell 2017; 16:859-869. [PMID: 28585250 PMCID: PMC5506439 DOI: 10.1111/acel.12618] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/19/2017] [Indexed: 01/06/2023] Open
Abstract
During aging, decreases in energy expenditure and locomotor activity lead to body weight and fat gain. Aging is also associated with decreases in muscle strength and endurance leading to functional decline. Here, we show that lifelong deletion of ghrelin prevents development of obesity associated with aging by modulating food intake and energy expenditure. Ghrelin deletion also attenuated the decrease in phosphorylated adenosine monophosphate‐activated protein kinase (pAMPK) and downstream mediators in muscle, and increased the number of type IIa (fatigue resistant, oxidative) muscle fibers, preventing the decline in muscle strength and endurance seen with aging. Longevity was not affected by ghrelin deletion. Treatment of old mice with pharmacologic doses of ghrelin increased food intake, body weight, and muscle strength in both ghrelin wild‐type and knockout mice. These findings highlight the relevance of ghrelin during aging and identify a novel AMPK‐dependent mechanism for ghrelin action in muscle.
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Affiliation(s)
- Bobby Guillory
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Ji-an Chen
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
- Department of Health Education; College of Preventive Medicine; Third Military Medical University; Chongqing 400038 China
| | - Shivam Patel
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Jiaohua Luo
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
- Department of Environmental Hygiene; College of Preventive Medicine; Third Military Medical University; Chongqing 400038 China
| | - Andres Splenser
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Avni Mody
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Michael Ding
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
- GRECC; VA Puget Sound Health Care System and University of Washington; Seattle WA USA
| | - Shiva Baghaie
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Barbara Anderson
- GRECC; VA Puget Sound Health Care System and University of Washington; Seattle WA USA
| | - Blaga Iankova
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Tripti Halder
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Yamileth Hernandez
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
| | - Jose M. Garcia
- Division of Diabetes; Endocrinology and Metabolism; MCL; Center for Translational Research on Inflammatory Diseases; Michael E DeBakey Veterans Affairs Medical Center and Baylor College of Medicine; Houston TX USA
- GRECC; VA Puget Sound Health Care System and University of Washington; Seattle WA USA
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Yen CH, Ho PS, Yeh YW, Liang CS, Kuo SC, Huang CC, Chen CY, Shih MC, Ma KH, Sung YF, Lu RB, Huang SY. Differential cytokine levels between early withdrawal and remission states in patients with alcohol dependence. Psychoneuroendocrinology 2017; 76:183-191. [PMID: 27951519 DOI: 10.1016/j.psyneuen.2016.10.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Revised: 09/14/2016] [Accepted: 10/19/2016] [Indexed: 01/18/2023]
Abstract
Alcohol dependence (AD) leads to altered innate and adaptive immune responses, and frequently co-occurs with inflammation. Therefore, inflammatory cytokines potentially play a crucial role in the development of alcohol-related illnesses. This study evaluated changes in plasma cytokine concentrations, liver function, cravings, depression severity, and cognitive function in male patients with AD, during the course of an alcohol-detoxification program. A total of 78 male patients with AD were recruited for a conservative detoxification program; and cytokine levels, depressive score, and cognitive impairment applying the Trail Making Test (TMT) were evaluated during early withdrawal (baseline) and after 4 weeks of abstinence from alcohol. Healthy volunteers (86 males) were also recruited as controls. Inflammatory cytokine expression in all participants was assessed by multiplex magnetic bead assay. AD patients during early withdrawal demonstrated higher cytokine levels than the healthy controls (P≤0.001 for all cytokines). However, the levels of cytokine expression were significantly lower after 4 weeks of abstinence from alcohol (P≤0.001, except for IL-1β and IL-5). Higher liver function marker levels, depressive severity, and TMT times were observed in patients at the beginning of the detoxification program than in healthy controls. Fortunately, these functions significantly ameliorated after 4 weeks of abstinence. (P≤0.001). Levels of circulating cytokines, liver function, and cognitive function may markers of alcohol use disorder.
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Affiliation(s)
- Che-Hung Yen
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC; Division of Neurology, Department of Internal Medicine,Chiayi Yang-Ming Hospital,Chiayi, Taiwan, ROC
| | - Pei-Shen Ho
- Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Yi-Wei Yeh
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chih-Sung Liang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Shin-Chang Kuo
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Chang-Chih Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Taipei Branch, Buddhist Tzu Chi General Hospital, Taipei, Taiwan, ROC
| | - Chun-Yen Chen
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Mei-Chen Shih
- Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Kuo-Hsing Ma
- Department of Anatomy and Biology, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Yueh-Feng Sung
- Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC
| | - Ru-Band Lu
- Institute of Behavior Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan, ROC
| | - San-Yuan Huang
- Graduate Institute of Medical Sciences, National Defense Medical Center, Taipei, Taiwan, ROC; Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, ROC.
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Allen SC. Systemic Inflammation in the Genesis of Frailty and Sarcopenia: An Overview of the Preventative and Therapeutic Role of Exercise and the Potential for Drug Treatments. Geriatrics (Basel) 2017; 2:geriatrics2010006. [PMID: 31011016 PMCID: PMC6371169 DOI: 10.3390/geriatrics2010006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Revised: 12/15/2016] [Accepted: 01/03/2017] [Indexed: 12/17/2022] Open
Abstract
The clinical, pathological and biological characteristics of frailty and sarcopenia are becoming better understood and defined, including the role of systemic inflammation. It is increasingly apparent that in older adults there is a tendency for the innate immune network to shift toward a pro-inflammatory setting, often due to the presence of chronic inflammatory diseases but also associated with age alone in some individuals. Furthermore, acute inflammation tends to resolve more slowly and less completely in many elderly people. Inflammation contributes to the pathogenesis of sarcopenia and other components of the frailty syndrome. Blood levels of inflammatory cytokines and acute phase proteins, are reduced by exercise, and there is a growing body of epidemiological, observational and intervention research that indicates that regular moderate exercise improves strength, function, morbidity and mortality in middle-aged and elderly adults. There is also an increasing awareness of the potential role of drugs to ameliorate inflammation in the context of frail old age, which might be particularly useful for people who are unable to take part in exercise programs, or as adjunctive treatment for those who can. Drugs that shift the innate immune biochemical network toward an anti-inflammatory setting, such as methyl-xanthines and 4-amino quinolones, could be of value. For example, theophylline has been shown to induce a 20 percent fall in pro-inflammatory tumor necrosis factor (TNF) and 180 percent rise in anti-inflammatory interleukin-10 production by peripheral blood monocytes, and a fall of 45 percent in interferon-gamma (IF-gamma) release. Such properties could be of therapeutic benefit, particularly to re-establish a less inflamed baseline after acute episodes such as sepsis and trauma.
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Affiliation(s)
- Stephen C Allen
- The Royal Bournemouth Hospital, Castle Lane East, Bournemouth, Dorset BH7 7DW, UK.
- Centre for Postgraduate Medical Education and Research, Bournemouth University, Bournemouth, Dorset BH12 5BB, UK.
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Pattabiraman G, Palasiewicz K, Ucker DS. Toll-like Receptor function of murine macrophages, probed by cytokine induction, is biphasic and is not impaired globally with age. Mech Ageing Dev 2016; 157:44-59. [PMID: 27453067 DOI: 10.1016/j.mad.2016.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/08/2016] [Accepted: 07/20/2016] [Indexed: 01/11/2023]
Abstract
Aging is associated with a waning of normal immune function. This "immunosenescence" is characterized by a diverse repertoire of seemingly discreet and unbalanced immune alterations. A number of studies have suggested that aging-associated alterations in innate immune responsiveness, especially responsiveness dependent on Toll-like Receptor (TLR) engagement, are causally involved. We find, however, that the magnitude and dose-dependency of responsiveness to TLR engagement (assessed with respect to cytokine production) in distinct populations of murine macrophages are not altered generally with animal age or as a consequence of immunosenescence. Responses elicited with a wide array of TLR agonists were examined by extensive functional analyses, principally on the level of the individual cell. These studies reveal an intriguing "all-or-nothing" response behavior of macrophages, independent of animal age. Although reports to the contrary have been cited widely, aging-associated immune decline cannot be attributed to widespread alterations in the extents of TLR-dependent innate immune macrophage responses.
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Affiliation(s)
- Goutham Pattabiraman
- Department of Microbiology and Immunology, University of Illinois College of Medicine, Chicago, IL 60612, United States.
| | - Karol Palasiewicz
- Department of Microbiology and Immunology, University of Illinois College of Medicine, Chicago, IL 60612, United States
| | - David S Ucker
- Department of Microbiology and Immunology, University of Illinois College of Medicine, Chicago, IL 60612, United States.
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Flynn MG, McFarlin BK, Markofski MM. The Anti-Inflammatory Actions of Exercise Training. Am J Lifestyle Med 2016; 1:220-235. [PMID: 25431545 DOI: 10.1177/1559827607300283] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The list of diseases with a known inflammatory etiology is growing. Cardiovascular disease, osteoporosis, diabetes, geriatric cachexia, and Alzheimer's disease have all been shown to be linked to or exacerbated by aberrantly regulated inflammatory processes. Nevertheless, there is mounting evidence that those who are physically active, or who become physically active, have a reduction in biomarkers associated with chronic inflammation. There was strong early consensus that exercise-induced reductions in inflammation were explained by body mass index or body fatness, but recent studies provide support for the contention that exercise has body fat-independent anti-inflammatory effects. With few exceptions, the anti-inflammatory effects of exercise appear to occur regardless of age or the presence of chronic diseases. What remains unclear are the mechanisms by which exercise training induces these anti-inflammatory effects, but there are several intriguing possibilities, including release of endogenous products, such as heat shock proteins; selective reduction of visceral adipose tissue mass or reducing infiltration of adipocytes by macrophages; shift in immune cell phenotype; cross-tolerizing effects; or exercise-induced shifts in accessory proteins of toll-like receptor signaling. However, future research endeavors are likely to uncover additional potential mechanisms, and it could be some time before functional mechanisms are made clear. In summary, the potential anti-inflammatory influences of exercise training may provide a low-cost, readily available, and effective treatment for low-grade systemic inflammation and could contribute significantly to the positive effects of exercise training on chronic disease.
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Affiliation(s)
- Michael G Flynn
- Wastl Human Performance Lab, Department of Health and Kinesiology, Purdue University West Lafayette, Indiana (MGF, MMM) and the Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, Texas (BKM)
| | - Brian K McFarlin
- Wastl Human Performance Lab, Department of Health and Kinesiology, Purdue University West Lafayette, Indiana (MGF, MMM) and the Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, Texas (BKM)
| | - Melissa M Markofski
- Wastl Human Performance Lab, Department of Health and Kinesiology, Purdue University West Lafayette, Indiana (MGF, MMM) and the Laboratory of Integrated Physiology, Department of Health and Human Performance, University of Houston, Houston, Texas (BKM)
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Therapeutic Effects of CUR-Activated Human Umbilical Cord Mesenchymal Stem Cells on 1-Methyl-4-phenylpyridine-Induced Parkinson's Disease Cell Model. BIOMED RESEARCH INTERNATIONAL 2016; 2016:9140541. [PMID: 27340670 PMCID: PMC4906196 DOI: 10.1155/2016/9140541] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2015] [Revised: 03/02/2016] [Accepted: 03/27/2016] [Indexed: 12/16/2022]
Abstract
The purpose of this study is to evaluate the therapeutic effects of human umbilical cord-derived mesenchymal stem cells (hUC-MSC) activated by curcumin (CUR) on PC12 cells induced by 1-methyl-4-phenylpyridinium ion (MPP+), a cell model of Parkinson's disease (PD). The supernatant of hUC-MSC and hUC-MSC activated by 5 µmol/L CUR (hUC-MSC-CUR) were collected in accordance with the same concentration. The cell proliferation and differentiation potential to dopaminergic neuronal cells and antioxidation were observed in PC12 cells after being treated with the above two supernatants and 5 µmol/L CUR. The results showed that the hUC-MSC-CUR could more obviously promote the proliferation and the expression of tyrosine hydroxylase (TH) and microtubule associated protein-2 (MAP2) and significantly decreased the expression of nitric oxide (NO) and inducible nitric oxide synthase (iNOS) in PC12 cells. Furtherly, cytokines detection gave a clue that the expression of IL-6, IL-10, and NGF was significantly higher in the group treated with the hUC-MSC-CUR compared to those of other two groups. Therefore, the hUC-MSC-CUR may be a potential strategy to promote the proliferation and differentiation of PD cell model, therefore providing new insights into a novel therapeutic approach in PD.
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Abstract
Declining function of the immune system, termed "immunosenescence," leads to a higher incidence of infection, cancer, and autoimmune disease related mortalities in the elderly population. (1) Increasing interest in the field of immunosenescence is well-timed, as 20% of the United States population is expected to surpass the age of 65 by the year 2030. (2) Our current understanding of immunosenescence involves a shift in function of both adaptive and innate immune cells, leading to a reduced capacity to recognize new antigens and widespread chronic inflammation. The present review focuses on changes that occur in haematopoietic stem cells, macrophages, and T-cells using knowledge gained from both rodent and human studies. The review will discuss emerging strategies to combat immunosenescence, focusing on cellular and genetic therapies, including bone marrow transplantation and genetic reprogramming. A better understanding of the mechanisms and implications of immunosenescence will be necessary to combat age-related mortalities in the future.
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Affiliation(s)
- Elizabeth C Stahl
- a Department of Pathology ; University of Pittsburgh School of Medicine ; Pittsburgh , PA USA ;,b McGowan Institute for Regenerative Medicine ; Pittsburgh , PA USA
| | - Bryan N Brown
- a Department of Pathology ; University of Pittsburgh School of Medicine ; Pittsburgh , PA USA ;,b McGowan Institute for Regenerative Medicine ; Pittsburgh , PA USA ;,c Bioengineering Department ; Swanson School of Engineering; University of Pittsburgh ; Pittsburgh , PA USA
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Strandberg E, Edholm P, Ponsot E, Wåhlin-Larsson B, Hellmén E, Nilsson A, Engfeldt P, Cederholm T, Risérus U, Kadi F. Influence of combined resistance training and healthy diet on muscle mass in healthy elderly women: a randomized controlled trial. J Appl Physiol (1985) 2015; 119:918-25. [PMID: 26338453 DOI: 10.1152/japplphysiol.00066.2015] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 08/20/2015] [Indexed: 01/10/2023] Open
Abstract
The delivery of efficient nonpharmacological treatment to prevent the loss of muscle mass in older adults is a major challenge, and information on the combined effects of training and diet is particularly important. Here we aimed to evaluate the effects of 24 wk of resistance training combined with a healthy dietary approach (n-6/n-3 ratio < 2) in a population of healthy and physically active older women (65-70 years). The three-armed randomized controlled trial included a resistance training + healthy diet group (RT-HD), a resistance training group (RT), and controls (CON). All subjects included in the study were physically active and had low levels of serum inflammatory markers. In accordance with the dietary goals, the n-6/n-3 ratio dietary intake significantly decreased only in RT-HD by 42%. An increase in 1 repetition maximum in leg extension occurred in RT (+20.4%) and RT-HD (+20.8%), but not in CON. Interestingly, leg lean mass significantly increased only in RT-HD (+1.8%). While there were no changes in serum C-reactive protein and IL-6 levels, a significant decrease in serum level of the pro-inflammatory precursor arachidonic acid (-5.3 ± 9.4%) together with an increase in serum n-3 docosahexaenoic acid (+8.3%) occurred only in RT-HD. Altogether, this study demonstrates that the effects of resistance training on muscle mass in healthy older adults can be optimized by the adoption of a healthy diet.
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Affiliation(s)
- Emelie Strandberg
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
| | - Peter Edholm
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
| | - Elodie Ponsot
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
| | | | - Erik Hellmén
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
| | - Andreas Nilsson
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
| | - Peter Engfeldt
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
| | - Tommy Cederholm
- Department of Public Health and Caring Science, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Ulf Risérus
- Department of Public Health and Caring Science, Clinical Nutrition and Metabolism, Uppsala University, Uppsala, Sweden
| | - Fawzi Kadi
- School of Health and Medical Science, Örebro University, Örebro, Sweden; and
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Rodriguez-Miguelez P, Fernandez-Gonzalo R, Almar M, Mejías Y, Rivas A, de Paz JA, Cuevas MJ, González-Gallego J. Role of Toll-like receptor 2 and 4 signaling pathways on the inflammatory response to resistance training in elderly subjects. AGE (DORDRECHT, NETHERLANDS) 2014; 36:9734. [PMID: 25427999 PMCID: PMC4245402 DOI: 10.1007/s11357-014-9734-0] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2014] [Accepted: 11/14/2014] [Indexed: 05/03/2023]
Abstract
This study assessed the effects of a resistance exercise training program on the inflammatory response associated with Toll-like receptor (TLR) 2 and TLR4 signaling pathways in senior participants. Twenty-six healthy subjects (age, 69.5 ± 1.3) were randomized to a training (TG; n = 16) or a control (CG; n = 10) group. TG performed an 8-week resistance training program, while CG followed their daily routines. Peripheral blood mononuclear cells were isolated from blood samples obtained before and after the intervention, and levels of proteins involved in the TLR2, TLR4, and myeloid differentiation primary response gene 88 (MyD88)-dependent and MyD88-independent pathways were analyzed. The inflammatory status was evaluated through messenger RNA (mRNA) and protein content of interleukin (IL)-10 and tumor necrosis factor alpha (TNF-α) and plasma levels of C-reactive protein (CRP). After the 8-week resistance training, TLR2 and TLR4 protein expression was reduced in TG. MyD88, p65, phospho-p38, TIR domain-containing adaptor inducing interferon (TRIF), IKKi/IKKε, phospho-interferon regulatory factor (IRF) 3, and phosho-IRF7 were also downregulated in TG after the intervention. The training program induced an increase of phospho-extracellular signal-regulated kinases 1 and 2 (ERK1/2) and Hsp70 and a reduction of Hsp60. While TNF-α mRNA and protein values remained unchanged in both TG and CG, IL-10 mRNA and protein content were upregulated in TG after the intervention. CRP values decreased in TG only. The increase in Hsp70 negatively correlated with TLR2 and TLR4 downregulation. These data suggest that resistance exercise may represent an effective tool to ameliorate the pro-inflammatory status of old participants through an attenuation of MyD88-dependent and MyD88-independent TLR2 and TLR4 signaling pathways.
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Affiliation(s)
- Paula Rodriguez-Miguelez
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
| | | | - Mar Almar
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
| | - Yubisay Mejías
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
| | - Ana Rivas
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
| | - José A. de Paz
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
| | - María J. Cuevas
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
| | - Javier González-Gallego
- />Institute of Biomedicine (IBIOMED), University of León, Campus Vegazana s/n, 24071 León, Spain
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Wåhlin-Larsson B, Carnac G, Kadi F. The influence of systemic inflammation on skeletal muscle in physically active elderly women. AGE (DORDRECHT, NETHERLANDS) 2014; 36:9718. [PMID: 25311555 PMCID: PMC4199340 DOI: 10.1007/s11357-014-9718-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Accepted: 10/06/2014] [Indexed: 06/04/2023]
Abstract
The biological mechanisms responsible for the decline in skeletal muscle mass during aging remain unknown. It is hypothesized that elevations in the level of the acute phase C-reactive protein (CRP) negatively affect skeletal muscle mass in elderly. We examined the relationship between serum CRP and muscle mass in a population of active elderly women (65-70 years; n =23). Though all subjects were physically active, serum CRP levels were negatively associated to the amount of time spent in moderate-to-vigorous physical activity (R(2) = 0.20, P = 0.032) and to skeletal muscle mass (R(2) = 0.28, P = 0.009). We further aimed to determine the potential mechanisms behind the action of systemic inflammation on skeletal muscle by exposing myoblasts isolated from vastus lateralis to the different sera from each elderly woman. The doubling time (DT) of myoblasts increased when cells were exposed to sera with high CRP levels (R(2) = 0.27, P = 0.011), indicating that CRP contributes to the impairment of the proliferative rate of myoblasts in elderly. In order to further confirm our findings, we incubated human myoblasts in exogenous CRP. Exposition to exogenous CRP induced an increase in myoblast DT by 1.21-fold (P = 0.007) and a reduction in the expression of the proliferation marker ki-67 confirming the negative influence of CRP on myoblast proliferative rate. Collectively, these findings highlight the contribution of the systemic inflammatory status in the age-related decline in skeletal muscle function.
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Affiliation(s)
- Britta Wåhlin-Larsson
- />School of Health and Medical Sciences, Örebro University, SE-701 82 Örebro, Sweden
| | - Gilles Carnac
- />INSERM U1046, University Montpellier I, Montpellier, France
| | - Fawzi Kadi
- />School of Health and Medical Sciences, Örebro University, SE-701 82 Örebro, Sweden
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Kildey K, Rooks K, Weier S, Flower RL, Dean MM. Effect of age, gender and mannose-binding lectin (MBL) status on the inflammatory profile in peripheral blood plasma of Australian blood donors. Hum Immunol 2014; 75:973-9. [DOI: 10.1016/j.humimm.2014.08.200] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 08/18/2014] [Accepted: 08/18/2014] [Indexed: 02/07/2023]
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Shaw AC, Goldstein DR, Montgomery RR. Age-dependent dysregulation of innate immunity. Nat Rev Immunol 2013; 13:875-87. [PMID: 24157572 DOI: 10.1038/nri3547] [Citation(s) in RCA: 710] [Impact Index Per Article: 64.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
As we age, the innate immune system becomes dysregulated and is characterized by persistent inflammatory responses that involve multiple immune and non-immune cell types and that vary depending on the cell activation state and tissue context. This ageing-associated basal inflammation, particularly in humans, is thought to be induced by several factors, including the reactivation of latent viral infections and the release of endogenous damage-associated ligands of pattern recognition receptors (PRRs). Innate immune cell functions that are required to respond to pathogens or vaccines, such as cell migration and PRR signalling, are also impaired in aged individuals. This immune dysregulation may affect conditions associated with chronic inflammation, such as atherosclerosis and Alzheimer's disease.
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Affiliation(s)
- Albert C Shaw
- Section of Infectious Diseases, Department of Internal Medicine, Yale School of Medicine, New Haven, Connecticut 06520, USA
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Guerra-Laso JM, González-García S, González-Cortés C, Diez-Tascón C, López-Medrano R, Rivero-Lezcano OM. Macrophages from elders are more permissive to intracellular multiplication of Mycobacterium tuberculosis. AGE (DORDRECHT, NETHERLANDS) 2013; 35:1235-50. [PMID: 22791369 PMCID: PMC3705107 DOI: 10.1007/s11357-012-9451-5] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2011] [Accepted: 06/24/2012] [Indexed: 05/15/2023]
Abstract
The elderly account for a disproportionate share of all tuberculosis cases, and the population ageing may not fully explain this phenomenon. We have performed in vitro infection experiments to investigate whether there is an immunological basis for the apparent susceptibility of elders to tuberculosis. In our infection model, Mycobacterium tuberculosis induces a higher production of interleukin (IL)-6 and reactive oxygen species in macrophages from elders than from younger adults. This response did not prevent, however, an increased multiplication of M. tuberculosis in macrophages from elders as compared with the growth observed within cells from adults. By performing a factorial experiment, we have found that IFN-γ, but not IL-1β, IL-6 or TNF-α, stimulate the macrophages to restrict the multiplication of the bacterium in macrophages from elders. Although monocytes from elders seem to be in a higher level of activation, we present evidences that protein tyrosine phosphorylation response induced by M. tuberculosis is stronger in monocytes from adults than from elders. Using a protein array that detects 71 tyrosine phosphorylated kinases, we identified Pyk2 as the only kinase that displayed a difference of intensity larger than 50 % in adults than in elders. Furthermore, monocytes from elders that were incubated in the presence of tyrosine kinase inhibitors (genistein and PP2) allowed a higher level of bacterial multiplication. These observations may help to explain the susceptibility of elders to tuberculosis. An unexpected result was that both genistein and its negative control, daidzein, abundant soy isoflavones, promoted intracellular mycobacterial growth.
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Affiliation(s)
- José M. Guerra-Laso
- />Servicio de Medicina Interna, Hospital de León, Altos de Nava s/n, 24008 León, Spain
| | - Sandra González-García
- />Unidad de Investigación, Hospital de León, Edif. S. Antonio Abad, Altos de Nava s/n, 24008 León, Spain
| | - Carolina González-Cortés
- />Unidad de Investigación, Hospital de León, Edif. S. Antonio Abad, Altos de Nava s/n, 24008 León, Spain
| | - Cristina Diez-Tascón
- />Servicio de Anatomía Patológica, Hospital de León, Altos de Nava s/n, 24008 León, Spain
| | - Ramiro López-Medrano
- />Servicio de Microbiología, Hospital Comarcal del Bierzo, Médicos sin Fronteras, 7, 24411 Fuentesnuevas, Spain
| | - Octavio M. Rivero-Lezcano
- />Unidad de Investigación, Hospital de León, Edif. S. Antonio Abad, Altos de Nava s/n, 24008 León, Spain
- />Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León, Parque de Santa Clara s/n, 42002 Soria, Spain
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Combined in silico, in vivo, and in vitro studies shed insights into the acute inflammatory response in middle-aged mice. PLoS One 2013; 8:e67419. [PMID: 23844008 PMCID: PMC3699569 DOI: 10.1371/journal.pone.0067419] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2013] [Accepted: 05/17/2013] [Indexed: 11/19/2022] Open
Abstract
We combined in silico, in vivo, and in vitro studies to gain insights into age-dependent changes in acute inflammation in response to bacterial endotoxin (LPS). Time-course cytokine, chemokine, and NO2−/NO3− data from “middle-aged” (6–8 months old) C57BL/6 mice were used to re-parameterize a mechanistic mathematical model of acute inflammation originally calibrated for “young” (2–3 months old) mice. These studies suggested that macrophages from middle-aged mice are more susceptible to cell death, as well as producing higher levels of pro-inflammatory cytokines, vs. macrophages from young mice. In support of the in silico-derived hypotheses, resident peritoneal cells from endotoxemic middle-aged mice exhibited reduced viability and produced elevated levels of TNF-α, IL-6, IL-10, and KC/CXCL1 as compared to cells from young mice. Our studies demonstrate the utility of a combined in silico, in vivo, and in vitro approach to the study of acute inflammation in shock states, and suggest hypotheses with regard to the changes in the cytokine milieu that accompany aging.
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Wu D, Ren Z, Pae M, Han SN, Meydani SN. Diet-induced obesity has a differential effect on adipose tissue and macrophage inflammatory responses of young and old mice. Biofactors 2013; 39:326-33. [PMID: 23345024 DOI: 10.1002/biof.1075] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 11/12/2012] [Indexed: 01/01/2023]
Abstract
Obesity and aging are both associated with increased inflammation in adipose tissue. In this study, we investigated effect of diet-induced obesity on inflammatory status in young and old mice. Young (2 months) and old (19 months) C57BL/6 mice were fed a low-fat (10%, LF) or high-fat (60%, HF) diet for 4.5 months. Adipose tissue from old/LF mice expressed higher levels of IL-1β, IL-6, TNFα, and cyclooxygenase-2 mRNA compared with young/LF mice. HF diet upregulated expression of all these inflammatory markers in young mice to the levels seen in the aged. Adipocytes, but not stromal vascular cells, from old/LF mice produced more IL-6, TNFα, and prostaglandin (PG)E2 than those from young/LF mice. HF diet resulted in an increase of all these markers produced by adipocytes in young, but only TNFα in old mice. PGE2 produced by peritoneal macrophages (Mϕ's) was upregulated with aging, and HF diet induced more IL-6, TNFα, and PGE2 production in young but not in old mice. Thus, HF diet/obesity induces an inflammatory state in both visceral fat cells and peritoneal Mϕ's of young mice, but not so in old mice. Together, these results suggest that HF diet-induced obesity may speed up the aging process as characterized by inflammatory status. This study also indicates that animals have a differential response, depending on their ages, to HF diet-induced obesity and inflammation. This age-related difference in response to HF diet should be considered when using inflammation status as a marker in investigating adverse health impacts of HF diet and obesity.
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Affiliation(s)
- Dayong Wu
- Nutritional Immunology Laboratory, JM USDA Human Nutrition Research Center on Aging at Tufts University, Boston, MA 02111, USA.
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A consideration of biomarkers to be used for evaluation of inflammation in human nutritional studies. Br J Nutr 2013; 109 Suppl 1:S1-34. [PMID: 23343744 DOI: 10.1017/s0007114512005119] [Citation(s) in RCA: 245] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
To monitor inflammation in a meaningful way, the markers used must be valid: they must reflect the inflammatory process under study and they must be predictive of future health status. In 2009, the Nutrition and Immunity Task Force of the International Life Sciences Institute, European Branch, organized an expert group to attempt to identify robust and predictive markers, or patterns or clusters of markers, which can be used to assess inflammation in human nutrition studies in the general population. Inflammation is a normal process and there are a number of cells and mediators involved. These markers are involved in, or are produced as a result of, the inflammatory process irrespective of its trigger and its location and are common to all inflammatory situations. Currently, there is no consensus as to which markers of inflammation best represent low-grade inflammation or differentiate between acute and chronic inflammation or between the various phases of inflammatory responses. There are a number of modifying factors that affect the concentration of an inflammatory marker at a given time, including age, diet and body fatness, among others. Measuring the concentration of inflammatory markers in the bloodstream under basal conditions is probably less informative compared with data related to the concentration change in response to a challenge. A number of inflammatory challenges have been described. However, many of these challenges are poorly standardised. Patterns and clusters may be important as robust biomarkers of inflammation. Therefore, it is likely that a combination of multiple inflammatory markers and integrated readouts based upon kinetic analysis following defined challenges will be the most informative biomarker of inflammation.
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Otenio CCM, Fonseca I, Martins MF, Ribeiro LC, Assis NMSP, Ferreira AP, Ribeiro RA. Expression of IL-1β, IL-6, TNF-α, and iNOS in pregnant women with periodontal disease. GENETICS AND MOLECULAR RESEARCH 2012; 11:4468-78. [PMID: 23079986 DOI: 10.4238/2012.september.20.3] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Periodontal disease is one of the most prevalent oral diseases. An association between this disease and pregnancy has been suggested, but available findings are controversial. We evaluated the expression levels of interleukins (IL-1β and IL-6), tumor necrosis factor-alpha (TNF-α), and inducible nitric oxide synthase (iNOS) in pregnant women with and without periodontal disease in comparison with non-pregnant women with and without periodontal disease since studies have suggested a relationship between periodontitis and the expression levels of these genes. The women in the sample were distributed into four groups: pregnant and non-pregnant women, with or without periodontal disease, a total of 32 women. The periodontal condition was evaluated according to the probing depth, clinical attachment level and bleeding on probing. Analysis of gene expression was performed by real-time PCR. Comparisons were made of the level of gene expression among the four groups. Expression of IL-1β in the non-pregnant women with periodontal disease was 12.6 times higher than in the non-pregnant women without periodontal disease (P < 0.01), while expression of TNF-α in the non-pregnant women without periodontal disease was 3.5 times higher than in the pregnant women with periodontal disease (P < 0.05). Despite these differences, our overall findings indicate no differences in the expression levels of the cytokines IL-1β, IL-6, TNF-α, and iNOS in pregnant women with and without periodontal disease in comparison with expression of the same genes in non-pregnant women with and without periodontal disease, suggesting that periodontal disease is not influenced by pregnancy.
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Affiliation(s)
- C C M Otenio
- Departamento de Odontologia Social e Infantil, Faculdade de Odontologia, Universidade Federal de Juiz de Fora, Juiz de Fora, MG, Brasil.
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Abstract
The immune system is critical for protection and health maintenance and is likely required for a long lifespan. Yet, despite its importance for health, the ability to assess its quality of function has been poor, nor is much known on its variation between individuals. Hence direct assessment of immune health has largely been missing from medicine, and metrics of immune health are not well defined, especially in non-extreme states. This is chiefly due to the high complexity of the immune system. Recently emerging technologies now enable broad surveying of many immune system components at high resolution, setting forth a transformation of immunology and, through it, medicine. Such technologies enable, for the first time, high-resolution monitoring of an individual's immune system. The resulting information can be used for diagnostic and prognostic purposes, as well as to provide a quantitative, global view of the immune system, i.e. "systems immunology." This is especially relevant in the context of aging, in which the immune system exhibits profound alterations in state and function.
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Affiliation(s)
- Shai S Shen-Orr
- Department of Immunology, Rappaport Institute of Medical Research, Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel
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