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Hambright WS, Duke VR, Goff AD, Goff AW, Minas LT, Kloser H, Gao X, Huard C, Guo P, Lu A, Mitchell J, Mullen M, Su C, Tchkonia T, Espindola Netto JM, Robbins PD, Niedernhofer LJ, Kirkland JL, Bahney CS, Philippon M, Huard J. Clinical validation of C 12FDG as a marker associated with senescence and osteoarthritic phenotypes. Aging Cell 2024; 23:e14113. [PMID: 38708778 PMCID: PMC11113632 DOI: 10.1111/acel.14113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Revised: 01/23/2024] [Accepted: 01/29/2024] [Indexed: 05/07/2024] Open
Abstract
Chronic conditions associated with aging have proven difficult to prevent or treat. Senescence is a cell fate defined by loss of proliferative capacity and the development of a pro-inflammatory senescence-associated secretory phenotype comprised of cytokines/chemokines, proteases, and other factors that promotes age-related diseases. Specifically, an increase in senescent peripheral blood mononuclear cells (PBMCs), including T cells, is associated with conditions like frailty, rheumatoid arthritis, and bone loss. However, it is unknown if the percentage of senescent PBMCs associated with age-associated orthopedic decline could be used for potential diagnostic or prognostic use in orthopedics. Here, we report senescent cell detection using the fluorescent compound C12FDG to quantify PBMCs senescence across a large cohort of healthy and osteoarthritic patients. There is an increase in the percent of circulating C12FDG+ PBMCs that is commensurate with increases in age and senescence-related serum biomarkers. Interestingly, C12FDG+ PBMCs and T cells also were found to be elevated in patients with mild to moderate osteoarthritis, a progressive joint disease that is strongly associated with inflammation. The percent of C12FDG+ PBMCs and age-related serum biomarkers were decreased in a small subgroup of study participants taking the senolytic drug fisetin. These results demonstrate quantifiable measurements in a large group of participants that could create a composite score of healthy aging sensitive enough to detect changes following senolytic therapy and may predict age-related orthopedic decline. Detection of peripheral senescence in PBMCs and subsets using C12FDG may be clinically useful for quantifying cellular senescence and determining how and if it plays a pathological role in osteoarthritic progression.
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Affiliation(s)
- William S. Hambright
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Victoria R. Duke
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Adam D. Goff
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Alex W. Goff
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Lucas T. Minas
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Heidi Kloser
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Xueqin Gao
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Charles Huard
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Ping Guo
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Aiping Lu
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - John Mitchell
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Michael Mullen
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Charles Su
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
| | - Tamara Tchkonia
- Department of Physiology and Biomedical EngineeringMayo ClinicRochesterMinnesotaUSA
| | | | - Paul D. Robbins
- Department of Biochemistry and Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - Laura J. Niedernhofer
- Department of Biochemistry and Molecular Biology and Biophysics, Institute on the Biology of Aging and MetabolismUniversity of MinnesotaMinneapolisMinnesotaUSA
| | - James L. Kirkland
- Department of Physiology and Biomedical EngineeringMayo ClinicRochesterMinnesotaUSA
- Division of General Internal Medicine, Department of MedicineMayo ClinicRochesterMinnesotaUSA
| | - Chelsea S. Bahney
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
- Orthopaedic Trauma InstituteUniversity of California San FranciscoSan FranciscoCaliforniaUSA
| | - Marc Philippon
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
- The Steadman ClinicVailColoradoUSA
| | - Johnny Huard
- Center for Regenerative Sports MedicineSteadman Philippon Research InstituteVailColoradoUSA
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Wan Y, Fu J. GDF15 as a key disease target and biomarker: linking chronic lung diseases and ageing. Mol Cell Biochem 2024; 479:453-466. [PMID: 37093513 PMCID: PMC10123484 DOI: 10.1007/s11010-023-04743-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 04/12/2023] [Indexed: 04/25/2023]
Abstract
Growth differentiation factor 15 (GDF15), a member of the transforming growth factor-beta superfamily, is expressed in several human organs. In particular, it is highly expressed in the placenta, prostate, and liver. The expression of GDF15 increases under cellular stress and pathological conditions. Although numerous transcription factors directly up-regulate the expression of GDF15, the receptors and downstream mediators of GDF15 signal transduction in most tissues have not yet been determined. Glial cell-derived neurotrophic factor family receptor α-like protein was recently identified as a specific receptor that plays a mediating role in anorexia. However, the specific receptors of GDF15 in other tissues and organs remain unclear. As a marker of cell stress, GDF15 appears to exert different effects under different pathological conditions. Cell senescence may be an important pathogenetic process and could be used to assess the progression of various lung diseases, including COVID-19. As a key member of the senescence-associated secretory phenotype protein repertoire, GDF15 seems to be associated with mitochondrial dysfunction, although the specific molecular mechanism linking GDF15 expression with ageing remains to be elucidated. Here, we focus on research progress linking GDF15 expression with the pathogenesis of various chronic lung diseases, including neonatal bronchopulmonary dysplasia, idiopathic pulmonary fibrosis, chronic obstructive pulmonary disease, and pulmonary hypertension, suggesting that GDF15 may be a key biomarker for diagnosis and prognosis. Thus, in this review, we aimed to provide new insights into the molecular biological mechanism and emerging clinical data associated with GDF15 in lung-related diseases, while highlighting promising research and clinical prospects.
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Affiliation(s)
- Yang Wan
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Jianhua Fu
- Department of Pediatrics, Shengjing Hospital of China Medical University, Shenyang, China.
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Alarcon-Dionet A, Ruiz A, Chavez-Galan L, Buendia-Roldan I, Selman M. GDF15 as a potential biomarker to distinguish fibrotic from non-fibrotic hypersensitivity pneumonitis. Sci Rep 2024; 14:859. [PMID: 38195721 PMCID: PMC10776671 DOI: 10.1038/s41598-023-49459-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 12/08/2023] [Indexed: 01/11/2024] Open
Abstract
Hypersensitivity Pneumonitis (HP) is an immune-mediated interstitial lung disease (ILD) characterized by fibrotic HP (fHP) or non-fibrotic HP (non-fHP). Fibrosis is associated with poor prognosis, emphasizing the need for biomarkers to distinguish fHP from non-fHP. This study aimed to determine the plasma levels of GDF15 in HP patients and assess its association with lung function and phenotype classification. GDF15 levels were quantified by ELISA in HP (n = 64), idiopathic pulmonary fibrosis (n = 54), and healthy control (n = 128) groups. Clinical, demographic, and functional data were obtained from medical records. High-resolution chest CT scans were used to classify HP patients into fHP and non-fHP groups. In addition, receiver operating characteristic analysis was performed to determine the cut-off point, sensitivity, and specificity. Our results revealed significantly elevated GDF15 levels in fHP compared to non-fHP (2539 ± 821 pg/ml versus 1783 ± 801 pg/ml; p = 0.009). The estimated cut-off point for plasma GDF15 levels to distinguish fHP from non-fHP was 2193.4 pg/ml (AUC 0.75). These findings suggest that GDF15 may serve as a valuable biomarker for differentiating between fHP and non-fHP, potentially indicating its involvement in lung fibrosis development in HP.
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Affiliation(s)
- A Alarcon-Dionet
- Translational Research Laboratory on Aging and Pulmonary Fibrosis, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, 14080, Mexico City, Mexico
| | - A Ruiz
- Laboratory of Integrative Immunology, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, 14080, Mexico City, Mexico
| | - L Chavez-Galan
- Laboratory of Integrative Immunology, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, 14080, Mexico City, Mexico
| | - I Buendia-Roldan
- Translational Research Laboratory on Aging and Pulmonary Fibrosis, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, 14080, Mexico City, Mexico.
| | - M Selman
- Translational Research Laboratory on Aging and Pulmonary Fibrosis, Instituto Nacional de Enfermedades Respiratorias Ismael Cosío Villegas, 14080, Mexico City, Mexico
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ElGhazaly M, Collins MO, Ibler AEM, Humphreys D. Typhoid toxin hijacks Wnt5a to establish host senescence and Salmonella infection. Cell Rep 2023; 42:113181. [PMID: 37792529 DOI: 10.1016/j.celrep.2023.113181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 06/15/2023] [Accepted: 09/13/2023] [Indexed: 10/06/2023] Open
Abstract
Damage to our genome causes acute senescence in mammalian cells, which undergo growth arrest and release a senescence-associated secretory phenotype (SASP) that propagates the stress response to bystander cells. Thus, acute senescence is a powerful tumor suppressor. Salmonella enterica hijacks senescence through its typhoid toxin, which usurps unidentified factors in the stress secretome of senescent cells to mediate intracellular infections. Here, transcriptomics of toxin-induced senescent cells (TxSCs) and proteomics of their secretome identify the factors as Wnt5a, INHBA, and GDF15. Wnt5a establishes a positive feedback loop, driving INHBA and GDF15 expression. In fibroblasts, Wnt5a and INHBA mediate autocrine senescence in TxSCs and paracrine senescence in naive cells. Wnt5a synergizes with GDF15 to increase Salmonella invasion. Intestinal TxSCs undergo apoptosis without Wnt5a, which is required for establishing intestinal TxSCs. The study reveals how an innate defense against cancer is co-opted by a bacterial pathogen to cause widespread damage and mediate infections.
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Affiliation(s)
- Mohamed ElGhazaly
- School of Biosciences, University of Sheffield, Sheffield, South Yorkshire S10 2TN, UK
| | - Mark O Collins
- School of Biosciences, University of Sheffield, Sheffield, South Yorkshire S10 2TN, UK
| | - Angela E M Ibler
- School of Biosciences, University of Sheffield, Sheffield, South Yorkshire S10 2TN, UK
| | - Daniel Humphreys
- School of Biosciences, University of Sheffield, Sheffield, South Yorkshire S10 2TN, UK.
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Pence BD. Growth Differentiation Factor-15 in Immunity and Aging. FRONTIERS IN AGING 2022; 3:837575. [PMID: 35821815 PMCID: PMC9261309 DOI: 10.3389/fragi.2022.837575] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/24/2022] [Indexed: 11/21/2022]
Abstract
Aging increases susceptibility to and severity of a variety of chronic and infectious diseases. Underlying this is dysfunction of the immune system, including chronic increases in low-grade inflammation (inflammaging) and age-related immunosuppression (immunosenescence). Growth differentiation factor-15 (GDF-15) is a stress-, infection-, and inflammation-induced cytokine which is increased in aging and suppresses immune responses. This mini review briefly covers existing knowledge on the immunoregulatory and anti-inflammatory roles of GDF-15, as well as its potential importance in aging and immune function.
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Baumann A, Hernández-Arriaga A, Brandt A, Sánchez V, Nier A, Jung F, Kehm R, Höhn A, Grune T, Frahm C, Witte OW, Camarinha-Silva A, Bergheim I. Microbiota profiling in aging-associated inflammation and liver degeneration. Int J Med Microbiol 2021; 311:151500. [PMID: 33813306 DOI: 10.1016/j.ijmm.2021.151500] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 03/18/2021] [Accepted: 03/26/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND The number of people above the age of 60 years is raising world-wide being associated with an increase in the prevalence of aging-associated impairments and even diseases. Recent studies suggest that aging is associated with alterations in bacterial endotoxin levels and that these changes may add to low-grade inflammation, the so-called 'inflammaging', and aging-associated liver degeneration. However, mechanisms involved, and especially, the interaction of intestinal microbiota and barrier in the development of aging-associated inflammation and liver degeneration have not been fully understood. OBJECTIVE The aim of the present study was to determine if intestinal microbiota composition changes with age and if these alterations are associated with changes of markers of intestinal barrier function and the development of inflammation and liver degeneration. METHODS Blood, liver, small and large intestinal tissue of male 2-, 15-, 24- and 30-months old C57BL/6 mice fed standard chow were obtained. Intestinal microbiota composition, expression levels of antimicrobial peptides in small intestine and markers of intestinal barrier function were measured. Furthermore, indices of liver damage, inflammation and expression levels of lipopolysaccharide binding protein (Lbp) as well as of toll-like receptors (Tlr) 1-9 in liver tissue were assessed. RESULTS Pairwise comparisons of the microbial community in the small intestine showed differences between 2- and 24-, 15- and 24-, as well as 15- and 30-months old animals while Shannon's diversity, species richness and evenness indexes did not differ in both small and large intestine, respectively, between age groups. Concentrations of nitric oxide were significantly lower in small intestine of 15-, 24- and 30-months old mice compared to 2-months old mice while mRNA expression of the antimicrobial peptides defensin alpha 1 and lysozyme 1 was unchanged. In contrast, in liver tissue, older age of animals was associated with increasing inflammation and the development of fibrosis in 24- and 30-months old mice. Numbers of inflammatory foci and neutrophils in livers of 24- and 30-months old mice were significantly higher compared to 2-months old mice. These alterations were also associated with higher endotoxin levels in plasma as well as an increased mRNA expression of Lbp and Tlr1, Tlr2, Tlr4, Tlr6 and Tlr9 in livers in older mice. CONCLUSION Despite no consistent and robust changes of microbiota composition in small and/or large intestine of mice of different age were observed, our data suggest that alterations of markers of intestinal barrier function in small intestine are associated with an induction of several Tlrs and beginning hepatic inflammation in older mice and increase with age.
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Affiliation(s)
- Anja Baumann
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | | | - Annette Brandt
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Victor Sánchez
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Anika Nier
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Finn Jung
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria
| | - Richard Kehm
- German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal, Germany
| | - Annika Höhn
- German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal, Germany
| | - Tilman Grune
- German Institute of Human Nutrition Potsdam-Rehbrücke (DIfE), Nuthetal, Germany; German Center for Diabetes Research (DZD), Munich-Neuherberg, Germany; Department of Physiological Chemistry, University of Vienna, Vienna, Austria
| | - Christiane Frahm
- Hans-Berger Department of Neurology, University Hospital Jena, Jena, Germany
| | - Otto Wilhelm Witte
- Hans-Berger Department of Neurology, University Hospital Jena, Jena, Germany
| | | | - Ina Bergheim
- Department of Nutritional Sciences, Molecular Nutritional Science, University of Vienna, Vienna, Austria.
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Pence BD. Recent developments and future perspectives in aging and macrophage immunometabolism. AIMS MOLECULAR SCIENCE 2021. [DOI: 10.3934/molsci.2021015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
<abstract>
<p>Aging is the strongest contributor to the development and severity of many chronic and infectious diseases, primarily through age-related increases in low-grade inflammation (inflammaging) and decreases in immune function (immunosenescence). Metabolic reprogramming in immune cells is a significant contributor to functional and phenotypic changes in these cells, but little is known about the direct effect of aging on immunometabolism. This review highlights several recent advances in this field, focusing on mitochondrial dysfunction, NAD+ metabolism, and therapeutic reprogramming in aged monocytes and macrophages. Perspectives on opportunities for future research in this area are also provided. Targeting immunometabolism is a promising strategy for designing therapeutics for a wide variety of age-related diseases.</p>
</abstract>
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