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Greenberg EF, Voorbach MJ, Smith A, Reuter DR, Zhuang Y, Wang JQ, Wooten DW, Asque E, Hu M, Hoft C, Duggan R, Townsend M, Orsi K, Dalecki K, Amberg W, Duggan L, Knight H, Spina JS, He Y, Marsh K, Zhao V, Ybarra S, Mollon J, Fang Y, Vasanthakumar A, Westmoreland S, Droescher M, Finnema SJ, Florian H. Navitoclax safety, tolerability, and effect on biomarkers of senescence and neurodegeneration in aged nonhuman primates. Heliyon 2024; 10:e36483. [PMID: 39253182 PMCID: PMC11382177 DOI: 10.1016/j.heliyon.2024.e36483] [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: 06/26/2024] [Revised: 08/01/2024] [Accepted: 08/16/2024] [Indexed: 09/11/2024] Open
Abstract
Alzheimer's disease (AD) is the most common global dementia and is universally fatal. Most late-stage AD disease-modifying therapies are intravenous and target amyloid beta (Aβ), with only modest effects on disease progression: there remains a high unmet need for convenient, safe, and effective therapeutics. Senescent cells (SC) and the senescence-associated secretory phenotype (SASP) drive AD pathology and increase with AD severity. Preclinical senolytic studies have shown improvements in neuroinflammation, tau, Aβ, and CNS damage; most were conducted in transgenic rodent models with uncertain human translational relevance. In this study, aged cynomolgus monkeys had significant elevation of biomarkers of senescence, SASP, and neurological damage. Intermittent treatment with the senolytic navitoclax induced modest reversible thrombocytopenia; no serious drug-related toxicity was noted. Navitoclax reduced several senescence and SASP biomarkers, with CSF concentrations sufficient for senolysis. Finally, navitoclax reduced TSPO-PET frontal cortex binding and showed trends of improvement in CSF biomarkers of neuroinflammation, neuronal damage, and synaptic dysfunction. Overall, navitoclax administration was safe and well tolerated in aged monkeys, inducing trends of biomarker changes relevant to human neurodegenerative disease.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Min Hu
- AbbVie Inc., North Chicago, IL, United States
| | - Carolin Hoft
- AbbVie Deutschland GmbH & Co. KG, Neuroscience Research, Knollstrasse, 67061, Ludwigshafen, Germany
| | - Ryan Duggan
- AbbVie Inc., North Chicago, IL, United States
| | - Matthew Townsend
- AbbVie, Cambridge Research Center, 200 Sidney Street, Cambridge, MA, 02139, United States
| | - Karin Orsi
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA, 01605, United States
| | | | - Willi Amberg
- AbbVie Deutschland GmbH & Co. KG, Neuroscience Research, Knollstrasse, 67061, Ludwigshafen, Germany
| | - Lori Duggan
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA, 01605, United States
| | - Heather Knight
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA, 01605, United States
| | - Joseph S Spina
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA, 01605, United States
| | - Yupeng He
- AbbVie Inc., North Chicago, IL, United States
| | | | - Vivian Zhao
- AbbVie Bay Area, 1000 Gateway Boulevard, South San Francisco, CA, 94080, United States
| | - Suzanne Ybarra
- AbbVie Bay Area, 1000 Gateway Boulevard, South San Francisco, CA, 94080, United States
| | - Jennifer Mollon
- AbbVie Deutschland GmbH & Co. KG, Statistical Sciences and Analytics, Knollstrasse, 67061, Ludwigshafen, Germany
| | - Yuni Fang
- AbbVie Bay Area, 1000 Gateway Boulevard, South San Francisco, CA, 94080, United States
| | | | - Susan Westmoreland
- AbbVie Bioresearch Center, 100 Research Drive, Worcester, MA, 01605, United States
| | - Mathias Droescher
- AbbVie Deutschland GmbH & Co. KG, Neuroscience Research, Knollstrasse, 67061, Ludwigshafen, Germany
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Suriya-Arunroj L, Chimngam M, Chamnongpakdee C, Sing-Ayudthaya T, Linchekhaw C, Kongsombat N, Suttisan N. Behavioral Training in First-Generation Long-Tailed Macaques ( Macaca fascicularis) for Improved Husbandry and Veterinary Procedures. Animals (Basel) 2024; 14:2369. [PMID: 39199903 PMCID: PMC11350816 DOI: 10.3390/ani14162369] [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: 05/12/2024] [Revised: 08/06/2024] [Accepted: 08/07/2024] [Indexed: 09/01/2024] Open
Abstract
Owing to their similarities to humans in various aspects, non-human primates (NHPs) serve as valuable translational models that has greatly contributed to scientific advancements. However, working with untrained NHPs can cause stress and increase the risk of injuries to both animals and care staff, compromising both animal welfare and occupational safety. Behavioral training, that benefits from animals' learning abilities to gain their cooperation during husbandry and veterinary procedures, is a well-established method to mitigate these risks. Cynomolgus monkeys, in particular, are known for being despotic, fearful, and challenging to train. Moreover, our first-generation breeders were wild-sourced from human-macaque conflict areas in Thailand. These macaque populations are accustomed with human contact; hence, their prior experience can either work for or against behavioral shaping plans. Establishing a training program with realistic expectations would benefit both the animals and trainers. In this study, six cynomolgus monkeys were selected based on temperament, then underwent a pilot training program that included basic husbandry and veterinary procedures. Over 256 training sessions with gradual shaping plans, all six monkeys went through all training steps, with progress varying considerably among individuals. Cortisol levels were measured to monitor stress responses, revealing a notable sex difference: female monkeys generally complied more easily with the trainer but exhibited a stronger cortisol increase compared to males. This study proposed a behavioral training program grounded in three essential components: temperament assessment, behavioral shaping plans, and the cortisol-based criteria for evaluating training success.
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MacLean A, Horn M, Midkiff C, Van Zandt A, Saied A. Combination antiretroviral therapy prevents SIV- induced aging in the hippocampus and neurodegeneration throughout the brain. RESEARCH SQUARE 2024:rs.3.rs-4681317. [PMID: 39149452 PMCID: PMC11326353 DOI: 10.21203/rs.3.rs-4681317/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Virus-induced accelerated aging has been proposed as a potential mechanism underlying the persistence of HIV-associated neurocognitive disorders (HAND) despite advances in access and adherence to combination antiretroviral therapies (cART). While some studies have demonstrated evidence of accelerated aging in PLWH, studies examining acute infection, and cART intervention are limited, with most studies being in vitro or utilizing small animal models. Here, we utilized FFPE tissues from Simian immunodeficiency virus (SIV) infected rhesus macaques to assess the levels of two proteins commonly associated with aging - the cellular senescence marker p16INK4a (p16) and the NAD-dependent deacetylase sirtuin 1 (SIRT1). Our central hypothesis was that SIV infection induces accelerated aging phenotypes in the brain characterized by increased expression of p16 and altered expression of SIRT1 that correlate with increased neurodegeneration, and that cART inhibits this process. We found that SIV infection induced increased GFAP, p16, SIRT1, and neurodegeneration in multiple brain regions, and treatment with cART reduced GFAP expression in SIV-infected animals and thus likely decreases inflammation in the brain. Importantly, cART reversed SIV-induced accelerated aging (p16 and SIRT1) and neurodegeneration in the frontal lobe and hippocampus. Combined, these data suggest that cART is both safe and effective in reducing neuroinflammation and age-associated alterations in astrocytes that contribute to neurodegeneration, providing possible therapeutic targets in the treatment of HAND.
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Liu YS, Baxi M, Madan CR, Zhan K, Makris N, Rosene DL, Killiany RJ, Cetin-Karayumak S, Pasternak O, Kubicki M, Cao B. Brain age of rhesus macaques over the lifespan. Neurobiol Aging 2024; 139:73-81. [PMID: 38643691 DOI: 10.1016/j.neurobiolaging.2024.02.014] [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: 09/11/2023] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 04/23/2024]
Abstract
Through the application of machine learning algorithms to neuroimaging data the brain age methodology was shown to provide a useful individual-level biological age prediction and identify key brain regions responsible for the prediction. In this study, we present the methodology of constructing a rhesus macaque brain age model using a machine learning algorithm and discuss the key predictive brain regions in comparison to the human brain, to shed light on cross-species primate similarities and differences. Structural information of the brain (e.g., parcellated volumes) from brain magnetic resonance imaging of 43 rhesus macaques were used to develop brain atlas-based features to build a brain age model that predicts biological age. The best-performing model used 22 selected features and achieved an R2 of 0.72. We also identified interpretable predictive brain features including Right Fronto-orbital Cortex, Right Frontal Pole, Right Inferior Lateral Parietal Cortex, and Bilateral Posterior Central Operculum. Our findings provide converging evidence of the parallel and comparable brain regions responsible for both non-human primates and human biological age prediction.
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Affiliation(s)
- Yang S Liu
- Department of Psychiatry, University of Alberta, Edmonton, AB, Canada
| | - Madhura Baxi
- Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Kevin Zhan
- Department of Psychiatry, University of Alberta, Edmonton, AB, Canada
| | - Nikolaos Makris
- Department of Psychiatry, Center for Morphometric Analysis, A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Douglas L Rosene
- Department of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
| | - Ronald J Killiany
- Department of Anatomy & Neurobiology, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
| | - Suheyla Cetin-Karayumak
- Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Laboratory of Mathematics in Imaging, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Ofer Pasternak
- Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Radiology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Marek Kubicki
- Department of Psychiatry, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA; Department of Psychiatry, Center for Morphometric Analysis, A. Martinos Center for Biomedical Imaging, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA; Laboratory of Mathematics in Imaging, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | - Bo Cao
- Department of Psychiatry, University of Alberta, Edmonton, AB, Canada; Department of Computing Science, University of Alberta, Edmonton, AB, Canada.
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Horn MD, Forest SC, Saied AA, MacLean AG. Astrocyte expression of aging-associated markers positively correlates with neurodegeneration in the frontal lobe of the rhesus macaque brain. Front Aging Neurosci 2024; 16:1368517. [PMID: 38577492 PMCID: PMC10993697 DOI: 10.3389/fnagi.2024.1368517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/06/2024] [Indexed: 04/06/2024] Open
Abstract
Introduction As the population over the age of 65 increases, rates of neurodegenerative disorders and dementias will rise - necessitating further research into the cellular and molecular mechanisms that contribute to brain aging. With the critical importance of astrocytes to neuronal health and functioning, we hypothesized that alterations in astrocyte expression of aging-associated markers p16INK4a (p16) and sirtuin 1 (SIRT1) with age would correlate with increased rates of neurodegeneration, as measured by FluoroJade C (FJC) staining. Methods To test this hypothesis, 19 rhesus macaques at the Tulane National Primate Research Center were selected based on the following criteria: archival FFPE CNS tissue available to use, no noted neuropathology, and an age range of 5-30 years. Tissues were cut at 5 μm and stained for GFAP, p16, SIRT1, and FJC, followed by whole-slide imaging and HALO® image analysis for percentage of marker-positive cells and relative intensity of each stain. Results We found the percentage of p16+ cells increases with age in total cells and astrocytes of the frontal (p = 0.0021, p = 0.0012 respectively) and temporal (p = 0.0226, p = 0.0203 respectively) lobes, as well as the relative intensity of p16 staining (frontal lobe: p = 0.0060; temporal lobe: p = 0.0269). For SIRT1, we found no correlation with age except for an increase in the relative intensity of SIRT1 in the temporal lobe (p = 0.0033). There was an increase in neurodegeneration, as measured by the percentage of FJC+ cells in the frontal lobe with age (p = 0.0057), as well as in the relative intensity of FJC staining in the frontal (p = 0.0030) and parietal (p = 0.0481) lobes. Importantly, increased p16 and SIRT1 expression in astrocytes correlated with increasing neurodegeneration in the frontal lobe (p = 0.0009, p = 0.0095 respectively). Discussion Together, these data suggest that age-associated alterations in astrocytes contribute to neurodegeneration and provide a target for mechanistic studies in the future.
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Affiliation(s)
- Miranda D. Horn
- Brain Institute, Tulane University, New Orleans, LA, United States
| | | | - Ahmad A. Saied
- Tulane National Primate Research Center, Covington, LA, United States
| | - Andrew G. MacLean
- Brain Institute, Tulane University, New Orleans, LA, United States
- Tulane National Primate Research Center, Covington, LA, United States
- Tulane Center for Aging, New Orleans, LA, United States
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, United States
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Wang X, Luo Y, He S, Lu Y, Gong Y, Gao L, Mao S, Liu X, Jiang N, Pu Q, Du D, Shu Y, Hai S, Li S, Chen HN, Zhao Y, Xie D, Qi S, Lei P, Hu H, Xu H, Zhou ZG, Dong B, Zhang H, Zhang Y, Dai L. Age-, sex- and proximal-distal-resolved multi-omics identifies regulators of intestinal aging in non-human primates. NATURE AGING 2024; 4:414-433. [PMID: 38321225 PMCID: PMC10950786 DOI: 10.1038/s43587-024-00572-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Accepted: 01/08/2024] [Indexed: 02/08/2024]
Abstract
The incidence of intestinal diseases increases with age, yet the mechanisms governing gut aging and its link to diseases, such as colorectal cancer (CRC), remain elusive. In this study, while considering age, sex and proximal-distal variations, we used a multi-omics approach in non-human primates (Macaca fascicularis) to shed light on the heterogeneity of intestinal aging and identify potential regulators of gut aging. We explored the roles of several regulators, including those from tryptophan metabolism, in intestinal function and lifespan in Caenorhabditis elegans. Suggesting conservation of region specificity, tryptophan metabolism via the kynurenine and serotonin (5-HT) pathways varied between the proximal and distal colon, and, using a mouse colitis model, we observed that distal colitis was more sensitive to 5-HT treatment. Additionally, using proteomics analysis of human CRC samples, we identified links between gut aging and CRC, with high HPX levels predicting poor prognosis in older patients with CRC. Together, this work provides potential targets for preventing gut aging and associated diseases.
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Grants
- P40 OD010440 NIH HHS
- National Natural Science Foundation of China (National Science Foundation of China)
- National Key R&D Program of China,2022YFA1303200, 2018YFC2000305; The 135 Project of West China Hospital, ZYJC21005, ZYGD20010 and ZYYC23013.
- Natural Science Foundation of Sichuan Province,2023NSFSC1196
- Natural Science Foundation of Sichuan Province,2021YFS0134
- National Clinical Research Center for Geriatrics of West China Hospital, Z2021JC005
- The 135 Project of West China Hospital, ZYYC23025.
- National Key R&D Program of China, 2019YFA0110203;
- National Clinical Research Center for Geriatrics of West China Hospital, Z2021JC006;
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Affiliation(s)
- Xinyuan Wang
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
- Advanced Mass Spectrometry Center, Research Core Facility, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yaru Luo
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Siyu He
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ying Lu
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Yanqiu Gong
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Li Gao
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shengqiang Mao
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaohui Liu
- School of Life Sciences, Tsinghua University, Beijing, China
| | - Na Jiang
- Advanced Mass Spectrometry Center, Research Core Facility, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Qianlun Pu
- Advanced Mass Spectrometry Center, Research Core Facility, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Dan Du
- Advanced Mass Spectrometry Center, Research Core Facility, Frontiers Science Center for Disease-Related Molecular Network, West China Hospital, Sichuan University, Chengdu, China
| | - Yang Shu
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shan Hai
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shuangqing Li
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Hai-Ning Chen
- Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Zhao
- Department of Rheumatology and Immunology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Dan Xie
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Shiqian Qi
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Peng Lei
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Hongbo Hu
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Heng Xu
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Zong-Guang Zhou
- Colorectal Cancer Center, Department of General Surgery, West China Hospital, Sichuan University, Chengdu, China
| | - Biao Dong
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
| | - Huiyuan Zhang
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
| | - Yan Zhang
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
| | - Lunzhi Dai
- National Clinical Research Center for Geriatrics, Center for Immunology and Hematology and General Practice Ward/International Medical Center Ward, General Practice Medical Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China.
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Rodriguez RD, Tavares MC, Brucki SM, Takada LT, Otaduy MC, da Graça Morais Martin M, Suemoto C, Grinberg L, Leite C, Tomaz C, Nitrini R. Bearded capuchin monkey as a model for Alzheimer's disease research. RESEARCH SQUARE 2023:rs.3.rs-3495799. [PMID: 38106066 PMCID: PMC10723548 DOI: 10.21203/rs.3.rs-3495799/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2023]
Abstract
The absence of a natural animal model is one of the main challenges in Alzheimer's disease research. Despite the challenges of using non-human primates in studies, they can bridge mouse models and humans, as non-human primates are phylogenetically close to humans and can spontaneously develop AD-type pathology. The capuchin monkey, a New World primate, has recently attracted attention due to its skill in creating and using instruments. We analyzed three capuchin brains using structural 7T MRI and neuropathological evaluation. Alzheimer-type pathology was found in one case. Widespread β-amyloid pathology mainly in the form of focal deposits with variable morphology and high density of mature plaques. Noteworthy, plaque-associated dystrophic neurites, associated with disrupted of axonal transport and early cytoskeletal alteration, were frequently found. Unlike other species of New World monkeys, cerebral arterial angiopathy was not the predominant form of β-amyloid pathology. Additionally, abnormal aggregates of hyperphosphorylated tau, resembling neurofibrillary pathology, were observed in the temporal and frontal cortex. Besides, astrocyte hypertrophy surrounding plaques was found, suggesting a neuroinflammatory response. Aged capuchin monkeys can spontaneously develop Alzheimer-type pathology, indicating that they may be an advantageous animal model for research in Alzheimer's disease.
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Sharma H, Chang KA, Hulme J, An SSA. Mammalian Models in Alzheimer's Research: An Update. Cells 2023; 12:2459. [PMID: 37887303 PMCID: PMC10605533 DOI: 10.3390/cells12202459] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 10/09/2023] [Accepted: 10/10/2023] [Indexed: 10/28/2023] Open
Abstract
A form of dementia distinct from healthy cognitive aging, Alzheimer's disease (AD) is a complex multi-stage disease that currently afflicts over 50 million people worldwide. Unfortunately, previous therapeutic strategies developed from murine models emulating different aspects of AD pathogenesis were limited. Consequently, researchers are now developing models that express several aspects of pathogenesis that better reflect the clinical situation in humans. As such, this review seeks to provide insight regarding current applications of mammalian models in AD research by addressing recent developments and characterizations of prominent transgenic models and their contributions to pathogenesis as well as discuss the advantages, limitations, and application of emerging models that better capture genetic heterogeneity and mixed pathologies observed in the clinical situation.
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Affiliation(s)
- Himadri Sharma
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
| | - Keun-A Chang
- Neuroscience Research Institute, Gachon University, Incheon 21565, Republic of Korea
| | - John Hulme
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon Bionano Research Institute, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 461-701, Gyeonggi-do, Republic of Korea
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9
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Zablocki-Thomas P, Rebout N, Karaskiewicz CL, Bales KL. Survival rates and mortality risks of Plecturocebus cupreus at the California National Primate Research Center. Am J Primatol 2023; 85:e23531. [PMID: 37424137 PMCID: PMC10921862 DOI: 10.1002/ajp.23531] [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: 05/13/2022] [Revised: 04/27/2023] [Accepted: 06/14/2023] [Indexed: 07/11/2023]
Abstract
This article describes survivorship and explores factors affecting mortality risks in a captive colony of coppery titi monkeys (Plecturocebus cupreus) housed at the California National Primate Research Center (CNPRC), at UC Davis, in Davis, CA. We analyzed data collected on individuals since the colony's creation in the 1960s, with a sample of 600 animals with partially complete information (date of birth, age at death, body mass, parental lineage). We used three methods: (1) Kaplan-Meier regressions followed by a log-rank test to compare survival in male and female titi monkeys, (2) a breakpoint analysis to identify shifts in the survival curves, and (3) Cox regressions to test the effect of body mass change, parental pair tenure, and parental age on mortality risk. We found that males tend to have a longer median lifespan than females (14.9 and 11.4 years; p = 0.094) and that survival decreases earlier in males than in females during adulthood (9.8 and 16.2 years). A body mass loss of 10% from adulthood to the time of death led to a 26% higher risk of dying (p < 0.001) as compared to an individual with stable body mass. We found no evidence of sociobiological factors on mortality risks (parental age, parental pair tenure), but an exploratory analysis suggested that a higher rate of offspring conceptions increases mortality risks. This description of factors influencing survival and mortality in titi monkeys is a first step toward understanding aging in this species to consider titi monkeys as a primate model for socioemotional aging.
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Affiliation(s)
| | | | - Chloe L. Karaskiewicz
- California National Primate Research Center, Davis CA
- Department of Psychology, University of California, Davis, United States of America
| | - Karen L. Bales
- California National Primate Research Center, Davis CA
- Department of Psychology, University of California, Davis, United States of America
- Department of Neurobiology, Physiology, and Behavior, University of California, Davis, United States of America
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10
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Chen X, Liu Y, Pu J, Gui S, Wang D, Zhong X, Tao W, Chen X, Chen W, Chen Y, Qiao R, Xie P. Multi-Omics Analysis Reveals Age-Related Microbial and Metabolite Alterations in Non-Human Primates. Microorganisms 2023; 11:2406. [PMID: 37894064 PMCID: PMC10609416 DOI: 10.3390/microorganisms11102406] [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: 09/05/2023] [Revised: 09/22/2023] [Accepted: 09/23/2023] [Indexed: 10/29/2023] Open
Abstract
Aging is a systemic physiological degenerative process, with alterations in gut microbiota and host metabolism. However, due to the interference of multiple confounding factors, aging-associated molecular characteristics have not been elucidated completely. Therefore, based on 16S ribosomal RNA (rRNA) gene sequencing and non-targeted metabolomic detection, our study systematically analyzed the composition and function of the gut microbiome, serum, and fecal metabolome of 36 male rhesus monkeys spanning from 3 to 26 years old, which completely covers juvenile, adult, and old stages. We observed significant correlations between 41 gut genera and age. Moreover, 86 fecal and 49 serum metabolites exhibited significant age-related correlations, primarily categorized into lipids and lipid-like molecules, organic oxygen compounds, organic acids and derivatives, and organoheterocyclic compounds. Further results suggested that aging is associated with significant downregulation of various amino acids constituting proteins, elevation of lipids, particularly saturated fatty acids, and steroids. Additionally, age-dependent changes were observed in multiple immune-regulatory molecules, antioxidant stress metabolites, and neurotransmitters. Notably, multiple age-dependent genera showed strong correlations in these changes. Together, our results provided new evidence for changing characteristics of gut microbes and host metabolism during aging. However, more research is needed in the future to verify our findings.
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Affiliation(s)
- Xiang Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yiyun Liu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Juncai Pu
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Siwen Gui
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Dongfang Wang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiaogang Zhong
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Wei Tao
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Xiaopeng Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Weiyi Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Yue Chen
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Renjie Qiao
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
| | - Peng Xie
- Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China; (X.C.)
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, China
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11
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Van Zandt AR, MacLean AG. Advances in HIV therapeutics and cure strategies: findings obtained through non-human primate studies. J Neurovirol 2023; 29:389-399. [PMID: 37635184 DOI: 10.1007/s13365-023-01162-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Revised: 07/07/2023] [Accepted: 07/24/2023] [Indexed: 08/29/2023]
Abstract
Human immunodeficiency virus (HIV), the main contributor of the ongoing AIDS epidemic, remains one of the most challenging and complex viruses to target and eradicate due to frequent genome mutation and immune evasion. Despite the development of potent antiretroviral therapies, HIV remains an incurable infection as the virus persists in latent reservoirs throughout the body. To innovate a safe and effective cure strategy for HIV in humans, animal models are needed to better understand viral proliferation, disease progression, and therapeutic response. Nonhuman primates infected with simian immunodeficiency virus (SIV) provide an ideal model to study HIV infection and pathogenesis as they are closely related to humans genetically and express phenotypically similar immune systems. Examining the clinical outcomes of novel treatment strategies within nonhuman primates facilitates our understanding of HIV latency and advances the development of a true cure to HIV.
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Affiliation(s)
- Alison R Van Zandt
- Tulane National Primate Research Center, Covington, LA, USA
- Biomedical Sciences Training Program, Tulane University School of Medicine, New Orleans, LA, USA
| | - Andrew G MacLean
- Tulane National Primate Research Center, Covington, LA, USA.
- Biomedical Sciences Training Program, Tulane University School of Medicine, New Orleans, LA, USA.
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA.
- Tulane Brain Institute, New Orleans, LA, USA.
- Tulane Center for Aging, New Orleans, LA, USA.
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12
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Horkai D, Hadj-Moussa H, Whale AJ, Houseley J. Dietary change without caloric restriction maintains a youthful profile in ageing yeast. PLoS Biol 2023; 21:e3002245. [PMID: 37643155 PMCID: PMC10464975 DOI: 10.1371/journal.pbio.3002245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 07/12/2023] [Indexed: 08/31/2023] Open
Abstract
Caloric restriction increases lifespan and improves ageing health, but it is unknown whether these outcomes can be separated or achieved through less severe interventions. Here, we show that an unrestricted galactose diet in early life minimises change during replicative ageing in budding yeast, irrespective of diet later in life. Average mother cell division rate is comparable between glucose and galactose diets, and lifespan is shorter on galactose, but markers of senescence and the progressive dysregulation of gene expression observed on glucose are minimal on galactose, showing that these are not intrinsic aspects of replicative ageing but rather associated processes. Respiration on galactose is critical for minimising hallmarks of ageing, and forced respiration during ageing on glucose by overexpression of the mitochondrial biogenesis factor Hap4 also has the same effect though only in a fraction of cells. This fraction maintains Hap4 activity to advanced age with low senescence and a youthful gene expression profile, whereas other cells in the same population lose Hap4 activity, undergo dramatic dysregulation of gene expression and accumulate fragments of chromosome XII (ChrXIIr), which are tightly associated with senescence. Our findings support the existence of two separable ageing trajectories in yeast. We propose that a complete shift to the healthy ageing mode can be achieved in wild-type cells through dietary change in early life without caloric restriction.
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Affiliation(s)
- Dorottya Horkai
- Epigenetics Programme, Babraham Institute, Cambridge, United Kingdom
| | | | - Alex J. Whale
- Epigenetics Programme, Babraham Institute, Cambridge, United Kingdom
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13
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Dash S, Park B, Kroenke CD, Rooney WD, Urbanski HF, Kohama SG. Brain volumetrics across the lifespan of the rhesus macaque. Neurobiol Aging 2023; 126:34-43. [PMID: 36917864 PMCID: PMC10106431 DOI: 10.1016/j.neurobiolaging.2023.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 01/30/2023] [Accepted: 02/05/2023] [Indexed: 02/13/2023]
Abstract
The rhesus macaque is a long-lived nonhuman primate (NHP) with a brain structure similar to humans, which may represent a valuable translational animal model in which to study human brain aging. Previous magnetic resonance imaging (MRI) studies of age in rhesus macaque brains have been prone to low statistical power, unbalanced sex ratio and lack of a complete age range. To overcome these problems, the current study surveyed structural T1-weighted magnetic resonance imaging scans of 66 animals, 34 females (aged 6-31 years) and 32 males (aged 5-27 years). Differences observed in older animals, included enlargement of the lateral ventricles and a smaller volume in the frontal cortex, caudate, putamen, hypothalamus, and thalamus. Unexpected, greater volume, were measured in older animals in the hippocampus, amygdala, and globus pallidus. There were also numerous differences between males and females with respect to age in both white and gray matter regions. As an apparent model of normative human aging, the macaque is ideal for studying induction and mitigation of neurodegenerative disease.
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Affiliation(s)
- Steven Dash
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA
| | - Byung Park
- Biostatistics Shared Resource, Knight Cancer Institute, Oregon Health & Science University, Portland, OR, USA
| | - Christopher D Kroenke
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - William D Rooney
- Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA; Department of Neurology, Oregon Health & Science University, Portland, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Henryk F Urbanski
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - Steven G Kohama
- Division of Neuroscience, Oregon National Primate Research Center, Beaverton, OR, USA; Advanced Imaging Research Center, Oregon Health & Science University, Portland, OR, USA.
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14
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Morrison RE, Hirwa JP, Ndagijimana F, Vecellio V, Eckardt W, Stoinski TS. Cascading effects of social dynamics on the reproduction, survival, and population growth of mountain gorillas. Anim Conserv 2022. [DOI: 10.1111/acv.12830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- R. E. Morrison
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund Kinigi Rwanda
- Centre for Research in Animal Behaviour, Department of Psychology University of Exeter Exeter UK
| | - J. P. Hirwa
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund Kinigi Rwanda
| | - F. Ndagijimana
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund Kinigi Rwanda
| | - V. Vecellio
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund Kinigi Rwanda
| | - W. Eckardt
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund Kinigi Rwanda
| | - T. S. Stoinski
- Dian Fossey Gorilla Fund, Ellen DeGeneres Campus of the Dian Fossey Gorilla Fund Kinigi Rwanda
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15
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James SA, Parker A, Purse C, Telatin A, Baker D, Holmes S, Durham J, Funnell SGP, Carding SR. The Cynomolgus Macaque Intestinal Mycobiome Is Dominated by the Kazachstania Genus and K. pintolopesii Species. J Fungi (Basel) 2022; 8:1054. [PMID: 36294619 PMCID: PMC9605169 DOI: 10.3390/jof8101054] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 09/02/2022] [Accepted: 09/30/2022] [Indexed: 08/10/2023] Open
Abstract
The cynomolgus macaque, Macaca fascicularis, is a non-human primate (NHP) widely used in biomedical research as its genetics, immunology and physiology are similar to those of humans. They may also be a useful model of the intestinal microbiome as their prokaryome resembles that of humans. However, beyond the prokaryome relatively little is known about other constituents of the macaque intestinal microbiome including the mycobiome. Here, we conducted a region-by-region taxonomic survey of the cynomolgus intestinal mycobiota, from duodenum to distal colon, of sixteen captive animals of differing age (from young to old). Using a high-throughput ITS1 amplicon sequencing-based approach, the cynomolgus gut mycobiome was dominated by fungi from the Ascomycota phylum. The budding yeast genus Kazachstania was most abundant, with the thermotolerant species K. pintolopesii highly prevalent, and the predominant species in both the small and large intestines. This is in marked contrast to humans, in which the intestinal mycobiota is characterised by other fungal genera including Candida and Saccharomyces, and Candida albicans. This study provides a comprehensive insight into the fungal communities present within the captive cynomolgus gut, and for the first time identifies K. pintolopesii as a candidate primate gut commensal.
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Affiliation(s)
- Steve A. James
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
| | - Aimee Parker
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
| | - Catherine Purse
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
| | - Andrea Telatin
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
| | - David Baker
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
| | - Sandy Holmes
- UK Health Security Agency, Porton Down, Salisbury SP4 0JG, UK
| | - James Durham
- UK Health Security Agency, Porton Down, Salisbury SP4 0JG, UK
| | - Simon G. P. Funnell
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
- UK Health Security Agency, Porton Down, Salisbury SP4 0JG, UK
| | - Simon R. Carding
- Gut Microbes and Health, Quadram Institute Bioscience, Norwich Research Park, Norwich NR4 7UQ, UK
- Norwich Medical School, University of East Anglia, Norwich NR4 7TJ, UK
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16
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Tomiyama T, Yamamoto T, Takahama S, Toshima T, Itoh S, Harada N, Shimokawa M, Okuzaki D, Mori M, Yoshizumi T. Up-regulated LRRN2 expression as a marker for graft quality in living donor liver transplantation. Hepatol Commun 2022; 6:2836-2849. [PMID: 35894759 PMCID: PMC9512467 DOI: 10.1002/hep4.2033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/24/2022] [Accepted: 06/12/2022] [Indexed: 12/07/2022] Open
Abstract
The quality and size of liver grafts are critical factors that influence living‐donor liver transplantation (LDLT) function and safety. However, the biomarkers used for predicting graft quality are lacking. In this study, we sought to identify unique graft quality markers, aside from donor age, by using the livers of non‐human primates. Hepatic gene microarray expression data from young and elderly cynomolgus macaques revealed a total of 271 genes with significantly increased expression in the elderly. These candidate genes were then narrowed down to six through bioinformatics analyses. The expression patterns of these candidate genes in human donor liver tissues were subsequently examined. Importantly, we found that grafts exhibiting up‐regulated expression of these six candidate genes were associated with an increased incidence of liver graft failure. Multivariable analysis further revealed that up‐regulated expression of LRRN2 (encoding leucine‐rich repeat protein, neuronal 2) in donor liver tissue served as an independent risk factor for graft failure (odds ratio 4.50, confidence interval 2.08–9.72). Stratification based on graft expression of LRRN2 and donor age was also significantly associated with 6‐month graft survival rates. Conclusion: Up‐regulated LRRN2 expression of liver graft is significantly correlated with graft failure in LDLT. In addition, combination of graft LRRN2 expression and donor age may represent a promising marker for predicting LDLT graft quality.
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Affiliation(s)
- Takahiro Tomiyama
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Takuya Yamamoto
- Laboratory of Immunosenescence, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan.,Laboratory of Aging and Immune Regulation, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Department of Virology and Immunology, Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Shokichi Takahama
- Laboratory of Immunosenescence, National Institutes of Biomedical Innovation, Health and Nutrition, Osaka, Japan
| | - Takeo Toshima
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shinji Itoh
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Noboru Harada
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Mototsugu Shimokawa
- Department of Biostatistics, Yamaguchi University Graduate School of Medicine, Yamaguchi, Japan
| | - Daisuke Okuzaki
- Single Cell Genomics, Human Immunology, WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan.,Genome Information Research Center, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
| | - Masaki Mori
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Tomoharu Yoshizumi
- Department of Surgery and Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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17
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Crofts KF, Holbrook BC, D'Agostino RB, Alexander-Miller MA. Analysis of R848 as an Adjuvant to Improve Inactivated Influenza Vaccine Immunogenicity in Elderly Nonhuman Primates. Vaccines (Basel) 2022; 10:494. [PMID: 35455242 PMCID: PMC9032612 DOI: 10.3390/vaccines10040494] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Revised: 03/10/2022] [Accepted: 03/17/2022] [Indexed: 01/13/2023] Open
Abstract
Elderly individuals are highly susceptible to developing severe outcomes as a result of influenza A virus (IAV) infection. This can be attributed to alterations that span the aged immune system, which also result in reduced responsiveness to the seasonal inactivated vaccine. Given the rapidly increasing number of individuals in this age group, it is imperative that we develop strategies that can better protect this population from IAV-associated disease. Based on our previous findings that the TLR7/8 agonist resiquimod (R848) could efficiently boost responses in the newborn, another population with decreased vaccine responsiveness, we evaluated this adjuvant in an elderly African green monkey (AGM) model. AGM aged 16-24 years old (equivalent to 64-96 in human years) were primed and boosted with inactivated A/PuertoRico/8/1934 (H1N1) (IPR8) alone or directly linked to R848 (IPR8-R848). We observed increases in the level of circulating virus-specific IgM antibody 10 days following primary vaccination in AGM that were vaccinated with IPR8-R848, but not IPR8 alone. In addition, there were significant increases in virus-specific IgG after boosting selectively in the IPR8-R848 vaccinated animals. These findings provide insights into the ability of R848 to modulate the aged immune system in the context of IAV vaccination.
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Affiliation(s)
- Kali F Crofts
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA
| | - Beth C Holbrook
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA
| | - Ralph B D'Agostino
- Department of Biostatistical Sciences, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA
| | - Martha A Alexander-Miller
- Department of Microbiology and Immunology, Wake Forest School of Medicine, Winston-Salem, NC 27101, USA
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18
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Chan AWS, Cho IK, Li CX, Zhang X, Patel S, Rusnak R, Raper J, Bachevalier J, Moran SP, Chi T, Cannon KH, Hunter CE, Martin RC, Xiao H, Yang SH, Gumber S, Herndon JG, Rosen RF, Hu WT, Lah JJ, Levey AI, Smith Y, Walker LC. Cerebral Aβ deposition in an Aβ-precursor protein-transgenic rhesus monkey. AGING BRAIN 2022; 2:100044. [PMID: 36589695 PMCID: PMC9802652 DOI: 10.1016/j.nbas.2022.100044] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
With the ultimate goal of developing a more representative animal model of Alzheimer's disease (AD), two female amyloid-β-(Aβ) precursor protein-transgenic (APPtg) rhesus monkeys were generated by lentiviral transduction of the APP gene into rhesus oocytes, followed by in vitro fertilization and embryo transfer. The APP-transgene included the AD-associated Swedish K670N/M671L and Indiana V717F mutations (APPSWE/IND) regulated by the human polyubiquitin-C promoter. Overexpression of APP was confirmed in lymphocytes and brain tissue. Upon sacrifice at 10 years of age, one of the monkeys had developed Aβ plaques and cerebral Aβ-amyloid angiopathy in the occipital, parietal, and caudal temporal neocortices. The induction of Aβ deposition more than a decade prior to its usual emergence in the rhesus monkey supports the feasibility of creating a transgenic nonhuman primate model for mechanistic analyses and preclinical testing of treatments for Alzheimer's disease and cerebrovascular amyloidosis.
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Affiliation(s)
- Anthony W S Chan
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - In Ki Cho
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Chun-Xia Li
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Xiaodong Zhang
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Sudeep Patel
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Rebecca Rusnak
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Jessica Raper
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Pediatrics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Jocelyne Bachevalier
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Psychology, Emory College, Atlanta, GA 30322, USA
| | - Sean P Moran
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Tim Chi
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Katherine H Cannon
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Carissa E Hunter
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Ryan C Martin
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Hailian Xiao
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Shang-Hsun Yang
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Human Genetics, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Sanjeev Gumber
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - James G Herndon
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - Rebecca F Rosen
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA
| | - William T Hu
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - James J Lah
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Allan I Levey
- Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Yoland Smith
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
| | - Lary C Walker
- Emory National Primate Research Center, Emory University, Atlanta, GA 30329, USA.,Department of Neurology, Emory University School of Medicine, Atlanta, GA 30322, USA
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19
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Moresco A, Feltrer-Rambaud Y, Wolfman D, Agnew DW. Reproductive one health in primates. Am J Primatol 2021; 84:e23325. [PMID: 34516669 DOI: 10.1002/ajp.23325] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 07/28/2021] [Accepted: 08/21/2021] [Indexed: 12/13/2022]
Abstract
One Health is a collaborative trans-disciplinary approach to health; integrating human, animal, and environmental health. The focus is often on infection disease transmission and disease risk mitigation. However, One Health also includes the multidisciplinary and comparative approach to disease investigation and health of humans, animals, and the environment. One key aspect of environmental/ecosystem health is conservation, the maintenance of healthy, actively reproducing wildlife populations. Reproduction and reproductive health are an integral part of the One Health approach: the comparative aspects of reproduction can inform conservation policies or breeding strategies (in situ and ex situ) in addition to physiology and disease. Differences in reproductive strategies affect the impact poaching and habitat disruption might have on a given population, as well as ex situ breeding programs and the management of zoo and sanctuary populations. Much is known about chimpanzees, macaques, and marmosets as these are common animal models, but there is much that remains unknown regarding reproduction in many other primates. Examining the similarities and differences between and within taxonomic groups allows reasonable extrapolation for decision-making when there are knowledge gaps. For example: (1) knowing that a species has very low reproductive rates adds urgency to conservation policy for that region or species; (2) identifying species with short or absent lactation anestrus allows ex situ institutions to better plan contraception options for specific individuals or prepare for the immediate next pregnancy; (3) recognizing that progestin contraceptives are effective contraceptives, but may be associated with endometrial hyperplasia in some species (in Lemuridae but not great apes) better guides empirical contraceptive choice; (4) recognizing the variable endometriosis prevalence across taxa improves preventive medicine programs. A summary of anatomical variation, endocrinology, contraception, pathology, and diagnostics is provided to illustrate these features and aid in routine physical and postmortem examinations as well as primate management.
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Affiliation(s)
- Anneke Moresco
- International Primate Health & Welfare Group, Madrid, Spain.,Reproductive Health Surveillance Program, Morrison, Colorado, USA
| | - Yedra Feltrer-Rambaud
- International Primate Health & Welfare Group, Madrid, Spain.,EAZA Reproductive Management Group, Chester, UK
| | - Darcy Wolfman
- Department of Radiology and Radiological Sciences, Johns Hopkins University School of Medicine, National Capital Region, Baltimore, Maryland, USA
| | - Dalen W Agnew
- Reproductive Health Surveillance Program, Morrison, Colorado, USA.,Michigan State University, Lansing, Michigan, USA
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20
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Cooper CP, Shafer AT, Armstrong NM, Rossi SL, Young J, Herold C, Gu H, Yang Y, Stein EA, Resnick SM, Rapp PR. Recognition Memory is Associated with Distinct Patterns of Regional Gray Matter Volumes in Young and Aged Monkeys. Cereb Cortex 2021; 32:933-948. [PMID: 34448810 DOI: 10.1093/cercor/bhab257] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 07/02/2021] [Accepted: 07/03/2021] [Indexed: 11/13/2022] Open
Abstract
Cognitive aging varies tremendously across individuals and is often accompanied by regionally specific reductions in gray matter (GM) volume, even in the absence of disease. Rhesus monkeys provide a primate model unconfounded by advanced neurodegenerative disease, and the current study used a recognition memory test (delayed non-matching to sample; DNMS) in conjunction with structural imaging and voxel-based morphometry (VBM) to characterize age-related differences in GM volume and brain-behavior relationships. Consistent with expectations from a long history of neuropsychological research, DNMS performance in young animals prominently correlated with the volume of multiple structures in the medial temporal lobe memory system. Less anticipated correlations were also observed in the cingulate and cerebellum. In aged monkeys, significant volumetric correlations with DNMS performance were largely restricted to the prefrontal cortex and striatum. Importantly, interaction effects in an omnibus analysis directly confirmed that the associations between volume and task performance in the MTL and prefrontal cortex are age-dependent. These results demonstrate that the regional distribution of GM volumes coupled with DNMS performance changes across the lifespan, consistent with the perspective that the aged primate brain retains a substantial capacity for structural reorganization.
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Affiliation(s)
- C'iana P Cooper
- Neurocognitive Aging Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 21224, United States
| | - Andrea T Shafer
- Brain Aging and Behavior Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 02903, United States
| | - Nicole M Armstrong
- Department of Psychiatry and Human Behavior, Warren Alpert Medical School of Brown University, Providence, RI 02903, United States
| | - Sharyn L Rossi
- Neurocognitive Aging Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 21224, United States
| | - Jennifer Young
- Neurocognitive Aging Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 21224, United States
| | - Christa Herold
- Neurocognitive Aging Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 21224, United States
| | - Hong Gu
- Magnetic Resonance Imaging and Spectroscopy Section, Neuroimaging Research Branch, National Institute on Drug Abuse, Baltimore, MD 21224, United States
| | - Yihong Yang
- Magnetic Resonance Imaging and Spectroscopy Section, Neuroimaging Research Branch, National Institute on Drug Abuse, Baltimore, MD 21224, United States
| | - Elliot A Stein
- Cognitive and Affective Neuroscience of Addiction Section, Neuroimaging Research Branch, National Institute on Drug Abuse, Baltimore, MD 21224, United States
| | - Susan M Resnick
- Brain Aging and Behavior Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 02903, United States
| | - Peter R Rapp
- Neurocognitive Aging Section, Laboratory of Behavioral Neuroscience, National Institute on Aging, Baltimore, MD 21224, United States
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21
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Cacabelos R, Carrera I, Martínez-Iglesias O, Cacabelos N, Naidoo V. What is the gold standard model for Alzheimer's disease drug discovery and development? Expert Opin Drug Discov 2021; 16:1415-1440. [PMID: 34330186 DOI: 10.1080/17460441.2021.1960502] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Introduction: Alzheimer's disease models (ADMs) are currently used for drug development (DD). More than 20,000 molecules were screened for AD treatment over decades, with only one drug (Aducanumab)FDA-approved over the past 18 years. A revision of pathogenic concepts and ADMs are needed.Areas covered: The authors discuss herein preclinical models including: (i) in vitro models (cell lines, primary neuron cell cultures, iPSC-derived brain cells), (ii) ex vivo models, and (iii) in vivo models (artificial, transgenic, non-transgenic and induced).Expert opinion: The following types of ADMs have been reported: Mouse models (45.08%), Rat models (15.04%), Non-human Primate models (0.76%), Rabbit models (0.46%), Cat models (0.53%), Pig models (0.30%), Guinea pig models (0.15%), Octodon degu models (0.02%), Dog models (0.54%), Drosophila melanogaster models (1.79%), Zebrafish models (0.50%), Caenorhabditis elegans (1.21%), Cell culture models (3.31%), Cholinergic models (8.26%), Neurotoxic models (6.79%), Neuroinflammation models (6.92%), Neurovascular models (7.88%), and Microbiome models (0.45%).No single ADM faithfully reproduces all the pathogenic events in the human AD phenotype spectrum. ADMs should be different for (i) pathogenic studies vs basic DD, and (ii) preventive interventions vs symptomatic treatments. There cannot be an ideal ADM for DD, because AD is a spectrum of syndromes. DD can integrate pathogenic, mechanistic, metabolic, transporter and pleiotropic genes in a multisystem model.
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Affiliation(s)
- Ramón Cacabelos
- Departments of Genomic Medicine, International Center of Neuroscience and Genomic Medicine, EuroEspes Biomedical Research Center, Bergondo, Spain
| | - Iván Carrera
- Health Biotechnology, International Center of Neuroscience and Genomic Medicine, EuroEspes Biomedical Research Center, Bergondo, Spain
| | - Olaia Martínez-Iglesias
- Medical Epigenetics, International Center of Neuroscience and Genomic Medicine, EuroEspes Biomedical Research Center, Bergondo, Spain
| | - Natalia Cacabelos
- Medical Documentation, International Center of Neuroscience and Genomic Medicine, EuroEspes Biomedical Research Center, Bergondo, Spain
| | - Vinogran Naidoo
- Basic Neuroscience, International Center of Neuroscience and Genomic Medicine, EuroEspes Biomedical Research Center, Bergondo, Spain
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22
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Wu H, Bains RS, Morris A, Morales C. Affordability, Feasibility, and Accessibility: Companion Animal Guardians with (Dis)Abilities' Access to Veterinary Medical and Behavioral Services during COVID-19. Animals (Basel) 2021; 11:ani11082359. [PMID: 34438816 PMCID: PMC8388706 DOI: 10.3390/ani11082359] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 07/30/2021] [Accepted: 08/07/2021] [Indexed: 11/16/2022] Open
Abstract
The research aims to explore COVID-19 health and safety protocol impacts on companion animal guardians living with (dis)abilities relating to veterinary medical and behavioral service access. The COVID-19 global public health crisis has impacted almost all international communities; however, vulnerable and marginalized groups have been disproportionately affected. Within the human-companion animal domain, COVID-19-driven societal impacts (e.g., social, health, and economic) not only boomed with new companion animal guardians, but also negatively influenced guardians' access to veterinary services. Although studies have examined guardian-related COVID-19-specific challenges, there is a paucity of concentration on vulnerable populations, such as persons with disabilities (PWDs). Responding to this research deficit, this study recruited twelve companion animal guardians to participate in semi-structured in-depth interviews, and eight (67%) of the twelve participants self-identified as PWDs. From a PWD perspective, this research reveals three pandemic-triggered primary barriers, preventing PWDs from pursuing veterinary services: (1) service affordability, (2) assistance program feasibility, and (3) veterinary service accessibility. This article argues that PWD-driven approaches could improve existing assistance and support programs to address PWDs' unique requirements, promoting a healthy human-animal bond.
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Affiliation(s)
- Haorui Wu
- School of Social Work, Dalhousie University, Halifax, NS B3H 4R2, Canada;
- Natural Hazards Center, University of Colorado Boulder, Boulder, CO 80309, USA
- Correspondence: ; Tel.: +1-(902)-494-1188
| | | | - Amy Morris
- Vancouver Humane Society, Vancouver, BC V6P 5A2, Canada; (A.M.); (C.M.)
| | - Celeste Morales
- Vancouver Humane Society, Vancouver, BC V6P 5A2, Canada; (A.M.); (C.M.)
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23
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Rolle F, Torti V, Valente D, De Gregorio C, Giacoma C, Von Hardenberg A. Sex and age-specific survival and life expectancy in a free ranging population of Indri indri (Gmelin, 1788). THE EUROPEAN ZOOLOGICAL JOURNAL 2021. [DOI: 10.1080/24750263.2021.1947398] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Affiliation(s)
- F. Rolle
- Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - V. Torti
- Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - D. Valente
- Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - C. De Gregorio
- Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - C. Giacoma
- Department of Life Sciences and Systems Biology, University of Turin, Torino, Italy
| | - A. Von Hardenberg
- Conservation Biology Research Group, Department of Biological Sciences, University of Chester, Chester, UK
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24
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He Z, Fahlberg MD, Takahashi N, Slisarenko N, Rout N, Didier ES, Kuroda MJ. Declining neutrophil production despite increasing G-CSF levels is associated with chronic inflammation in elderly rhesus macaques. J Leukoc Biol 2021; 109:1033-1043. [PMID: 33974319 DOI: 10.1002/jlb.1hi1120-779r] [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: 11/25/2020] [Revised: 01/27/2021] [Accepted: 02/10/2021] [Indexed: 01/07/2023] Open
Abstract
Aging is characterized by a loss of bone marrow hematopoietic tissue, systemic chronic inflammation, and higher susceptibility to infectious and noninfectious diseases. We previously reported the tightly regulated kinetics and massive daily production of neutrophils during homeostasis in adult rhesus macaques aged 3 to 19 yr (equivalent to approximately 10 to 70 yr of age in humans). In the current study, we observed an earlier release of recently dividing neutrophils from bone marrow and greater in-group variability of neutrophil kinetics based on in vivo BrdU labeling in a group of older rhesus macaques of 20-26 yr of age. Comparing neutrophil numbers and circulating cytokine levels in rhesus macaques spanning 2 to 26 yr of age, we found a negative correlation between age and blood neutrophil counts and a positive correlation between age and plasma G-CSF levels. Hierarchic clustering analysis also identified strong associations between G-CSF with the proinflammatory cytokines, IL-1β and MIP-1α. Furthermore, neutrophils from older macaques expressed less myeloperoxidase and comprised higher frequencies of polymorphonuclear myeloid-derived suppressor cells (PMN-MDSCs) compared to the young adult macaques. In summary, we observed an earlier release from bone marrow and a reduced production of neutrophils despite the increased levels of plasma G-CSF, especially in the elderly rhesus macaques. This lower neutrophil production capacity associated with increased production of proinflammatory cytokines as well as an earlier release of less mature neutrophils and PMN-MDSCs may contribute to the chronic inflammation and greater susceptibility to infectious and noninfectious diseases during aging.
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Affiliation(s)
- Ziyuan He
- Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, Louisiana, USA.,Division of Immunology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Marissa D Fahlberg
- Division of Immunology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Naofumi Takahashi
- Division of Immunology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA.,Joint Research Center for Human Retrovirus Infections, Kumamoto University, Kumamoto, Japan
| | - Nadia Slisarenko
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Namita Rout
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA
| | - Elizabeth S Didier
- Division of Microbiology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA.,Center for Immunology and Infectious Diseases and the California National Primate Research Center, University of California Davis, Davis, California, USA
| | - Marcelo J Kuroda
- Division of Immunology, Tulane National Primate Research Center, Tulane University, Covington, Louisiana, USA.,Center for Immunology and Infectious Diseases and the California National Primate Research Center, University of California Davis, Davis, California, USA
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25
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Preclinical Marmoset Model for Targeting Chronic Inflammation as a Strategy to Prevent Alzheimer's Disease. Vaccines (Basel) 2021; 9:vaccines9040388. [PMID: 33920929 PMCID: PMC8071309 DOI: 10.3390/vaccines9040388] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/08/2021] [Accepted: 04/13/2021] [Indexed: 11/17/2022] Open
Abstract
Due to the aging population, modern society is facing an increasing prevalence of neurological diseases such as Alzheimer’s disease (AD). AD is an age-related chronic neurodegenerative disorder for which no satisfying therapy exists. Understanding the mechanisms underlying the onset of AD is necessary to find targets for protective treatment. There is growing awareness of the essential role of the immune system in the early AD pathology. Amyloidopathy, the main feature of early-stage AD, has a deregulating effect on the immune function. This is reciprocal as the immune system also affects amyloidopathy. It seems that the inflammatory reaction shows a heterogeneous pattern depending on the stage of the disease and the variation between individuals, making not only the target but also the timing of treatment important. The lack of relevant translational animal models that faithfully reproduce clinical and pathogenic features of AD is a major cause of the delay in developing new disease-modifying therapies and their optimal timing of administration. This review describes the communication between amyloidopathy and inflammation and the possibility of using nonhuman primates as a relevant animal model for preclinical AD research.
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26
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Janiak MC, Montague MJ, Villamil CI, Stock MK, Trujillo AE, DePasquale AN, Orkin JD, Bauman Surratt SE, Gonzalez O, Platt ML, Martínez MI, Antón SC, Dominguez-Bello MG, Melin AD, Higham JP. Age and sex-associated variation in the multi-site microbiome of an entire social group of free-ranging rhesus macaques. MICROBIOME 2021; 9:68. [PMID: 33752735 PMCID: PMC7986251 DOI: 10.1186/s40168-021-01009-w] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 02/02/2021] [Indexed: 05/07/2023]
Abstract
BACKGROUND An individual's microbiome changes over the course of its lifetime, especially during infancy, and again in old age. Confounding factors such as diet and healthcare make it difficult to disentangle the interactions between age, health, and microbial changes in humans. Animal models present an excellent opportunity to study age- and sex-linked variation in the microbiome, but captivity is known to influence animal microbial abundance and composition, while studies of free-ranging animals are typically limited to studies of the fecal microbiome using samples collected non-invasively. Here, we analyze a large dataset of oral, rectal, and genital swabs collected from 105 free-ranging rhesus macaques (Macaca mulatta, aged 1 month-26 years), comprising one entire social group, from the island of Cayo Santiago, Puerto Rico. We sequenced 16S V4 rRNA amplicons for all samples. RESULTS Infant gut microbial communities had significantly higher relative abundances of Bifidobacterium and Bacteroides and lower abundances of Ruminococcus, Fibrobacter, and Treponema compared to older age groups, consistent with a diet high in milk rather than solid foods. The genital microbiome varied widely between males and females in beta-diversity, taxonomic composition, and predicted functional profiles. Interestingly, only penile, but not vaginal, microbiomes exhibited distinct age-related changes in microbial beta-diversity, taxonomic composition, and predicted functions. Oral microbiome composition was associated with age, and was most distinctive between infants and other age classes. CONCLUSIONS Across all three body regions, with notable exceptions in the penile microbiome, while infants were distinctly different from other age groups, microbiomes of adults were relatively invariant, even in advanced age. While vaginal microbiomes were exceptionally stable, penile microbiomes were quite variable, especially at the onset of reproductive age. Relative invariance among adults, including elderly individuals, is contrary to findings in humans and mice. We discuss potential explanations for this observation, including that age-related microbiome variation seen in humans may be related to changes in diet and lifestyle. Video abstract.
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Affiliation(s)
- Mareike C Janiak
- Department of Anthropology and Archaeology, University of Calgary, Alberta, Canada.
- Alberta Children's Hospital Research Institute, Alberta, Canada.
- Department of Anthropology, New York University, New York, USA.
- School of Science, Engineering and Environment, University of Salford, Salford, UK.
| | - Michael J Montague
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA, USA
| | - Catalina I Villamil
- School of Chiropractic, Universidad Central del Caribe, Bayamón, Puerto Rico
| | - Michala K Stock
- Department of Sociology and Anthropology, Metropolitan State University of Denver, Denver, CO, USA
| | - Amber E Trujillo
- Department of Anthropology, New York University, New York, USA
- New York Consortium in Evolutionary Primatology, New York, NY, USA
| | - Allegra N DePasquale
- Department of Anthropology and Archaeology, University of Calgary, Alberta, Canada
| | - Joseph D Orkin
- Institut de Biologia Evolutiva, Universitat Pompeu Fabra-CSIC, Barcelona, Spain
| | | | - Olga Gonzalez
- Disease Intervention and Prevention, Southwest National Primate Research Center, San Antonio, TX, USA
| | - Michael L Platt
- Department of Neuroscience, University of Pennsylvania, Philadelphia, PA, USA
| | - Melween I Martínez
- Caribbean Primate Research Center, University of Puerto Rico, San Juan, Puerto Rico
| | - Susan C Antón
- Department of Anthropology, New York University, New York, USA
- New York Consortium in Evolutionary Primatology, New York, NY, USA
| | - Maria Gloria Dominguez-Bello
- Department of Biochemistry and Microbiology, Rutgers University, New Brunswick, NJ, USA
- Department of Anthropology, Rutgers University, New Brunswick, NJ, USA
| | - Amanda D Melin
- Department of Anthropology and Archaeology, University of Calgary, Alberta, Canada
- Alberta Children's Hospital Research Institute, Alberta, Canada
- Department of Medical Genetics, University of Calgary, Alberta, Canada
| | - James P Higham
- Department of Anthropology, New York University, New York, USA
- New York Consortium in Evolutionary Primatology, New York, NY, USA
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27
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Hopkins WD, Mareno MC, Webb SJN, Schapiro SJ, Raghanti MA, Sherwood CC. Age-related changes in chimpanzee (Pan troglodytes) cognition: Cross-sectional and longitudinal analyses. Am J Primatol 2021; 83:e23214. [PMID: 33169860 PMCID: PMC7904603 DOI: 10.1002/ajp.23214] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 08/17/2020] [Accepted: 10/25/2020] [Indexed: 01/06/2023]
Abstract
Chimpanzees are the species most closely related to humans, yet age-related changes in brain and cognition remain poorly understood. The lack of studies on age-related changes in cognition in chimpanzees is particularly unfortunate in light of the recent evidence demonstrating that this species naturally develops Alzheimer's disease (AD) neuropathology. Here, we tested 213 young, middle-aged, and elderly captive chimpanzees on the primate cognitive test battery (PCTB), a set of 13 tasks that assess physical and social cognition in nonhuman primates. A subset of these chimpanzees (n = 146) was tested a second time on a portion of the PCTB tasks as a means of evaluating longitudinal changes in cognition. Cross-sectional analyses revealed a significant quadratic association between age and cognition with younger and older chimpanzees performing more poorly than middle-aged individuals. Longitudinal analyses showed that the oldest chimpanzees at the time of the first test showed the greatest decline in cognition, although the effect was mild. The collective data show that chimpanzees, like other nonhuman primates, show age-related decline in cognition. Further investigations into whether the observed cognitive decline is associated with AD pathologies in chimpanzees would be invaluable in understanding the comparative biology of aging and neuropathology in primates.
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Affiliation(s)
- William D Hopkins
- Department of Comparative Medicine, University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - Mary Catherine Mareno
- Department of Comparative Medicine, University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - Sarah J Neal Webb
- Department of Comparative Medicine, University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
| | - Steven J Schapiro
- Department of Comparative Medicine, University of Texas MD Anderson Cancer Center, Bastrop, TX, USA
- Department of Experimental Medicine, University of Copenhagen, Copenhagen, Denmark
| | - Mary Ann Raghanti
- Department of Anthropology, School of Biomedical Sciences, and Brain Health Research Institute Kent State University, Kent, Ohio 44242, USA
| | - Chet C Sherwood
- Department of Anthropology and Center for the Advanced Study of Human Paleobiology, The George Washington University, Washington, DC, USA
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28
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Aged Monkeys Fed a High-Fat/High-Sugar Diet Recapitulate Metabolic Disorders and Cardiac Contractile Dysfunction. J Cardiovasc Transl Res 2021; 14:799-815. [PMID: 33591467 DOI: 10.1007/s12265-021-10105-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 01/27/2021] [Indexed: 12/28/2022]
Abstract
Aged nonhuman primate (NHP) models are of great value for studying the pathology of metabolic heart diseases and developing therapeutic strategies. In this study, aged male cynomolgus monkeys were fed a regular diet or a high-fat/high-sugar diet (HFSD) for 8 months. Metabolic disorders were diagnosed by 1H-NMR and serum biochemistry, and cardiac function was evaluated by echocardiography. Our results showed that serum metabolic profiles were altered in aged monkeys fed a HFSD, in line with aortic tissue damage, cardiac remodeling, and contractile dysfunction. This aged monkey model significantly increased expression of proinflammatory cytokines and altered expression and phosphorylation of intracellular signaling proteins in the heart, as compared to aged monkeys on a regular diet. Furthermore, the animals demonstrated increased phosphorylation of cardiac myofilament proteins which are causatively associated with decreased myofilament contractility. We conclude that the aged monkey model fed a HFSD exhibits metabolic disorders and cardiac contractile dysfunction.
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29
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Hocum Stone L, Oppler SH, Nugent JL, Gresch S, Hering BJ, Murtaugh MP, Hegstad-Davies RL, Ramachandran S, Graham ML. Serum cytokine profiles in healthy nonhuman primates are blunted by sedation and demonstrate sexual dimorphism as detected by a validated multiplex immunoassay. Sci Rep 2021; 11:2340. [PMID: 33504894 PMCID: PMC7840937 DOI: 10.1038/s41598-021-81953-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2020] [Accepted: 01/13/2021] [Indexed: 12/11/2022] Open
Abstract
Cytokine profiling is a valuable tool for monitoring immune responses associated with disease and treatment. This study assessed the impact of sex and sedation on serum cytokines in healthy nonhuman primates (NHPs). Twenty-three cytokines were measured from serum using a bead-based multiplex assay. Assay validation for precision, sensitivity, recovery, linearity, and stability was performed. Samples from male and female cynomolgus and rhesus macaques either cooperating or sedated were compared. All cytokines except TNFα demonstrated acceptable sensitivity and precision, with variable recovery and linearity. IFNγ, IL-2, IL-5, IL-6, IL-8, IL-12/23 (p40), IL-13, IL-15, MCP-1, TGFα, VEGF met acceptance criteria; G-CSF, IL-4, IL-10, MIP1α, sCD40L were marginal. Higher cytokine levels were observed in females and cytokine levels were blunted in sedated NHPs when compared to awake cooperating NHPs. Significant differences observed in cytokines related to sex, species, or imposed by handling highlight the importance of model design on translational relevance for clinical settings.
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Affiliation(s)
- Laura Hocum Stone
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | | | - Julia L Nugent
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Sarah Gresch
- Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, 55108, USA.,Veterinary Diagnostic Lab, College of Veterinary Medicine, University of Minnesota, St. Paul, MN, 55108, USA
| | - Bernhard J Hering
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Michael P Murtaugh
- Department of Veterinary and Biomedical Sciences, University of Minnesota, St. Paul, MN, 55108, USA
| | | | | | - Melanie L Graham
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA. .,Department of Veterinary Population Medicine, University of Minnesota, St. Paul, MN, 55108, USA.
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30
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Vitek MP, Araujo JA, Fossel M, Greenberg BD, Howell GR, Rizzo SJS, Seyfried NT, Tenner AJ, Territo PR, Windisch M, Bain LJ, Ross A, Carrillo MC, Lamb BT, Edelmayer RM. Translational animal models for Alzheimer's disease: An Alzheimer's Association Business Consortium Think Tank. ALZHEIMER'S & DEMENTIA (NEW YORK, N. Y.) 2021; 6:e12114. [PMID: 33457489 PMCID: PMC7798310 DOI: 10.1002/trc2.12114] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/04/2020] [Accepted: 07/09/2020] [Indexed: 12/12/2022]
Abstract
Over 5 million Americans and 50 million individuals worldwide are living with Alzheimer's disease (AD). The progressive dementia associated with AD currently has no cure. Although clinical trials in patients are ultimately required to find safe and effective drugs, animal models of AD permit the integration of brain pathologies with learning and memory deficits that are the first step in developing these new drugs. The purpose of the Alzheimer's Association Business Consortium Think Tank meeting was to address the unmet need to improve the discovery and successful development of Alzheimer's therapies. We hypothesize that positive responses to new therapies observed in validated models of AD will provide predictive evidence for positive responses to these same therapies in AD patients. To achieve this goal, we convened a meeting of experts to explore the current state of AD animal models, identify knowledge gaps, and recommend actions for development of next-generation models with better predictability. Among our findings, we all recognize that models reflecting only single aspects of AD pathogenesis do not mimic AD. Models or combinations of new models are needed that incorporate genetics with environmental interactions, timing of disease development, heterogeneous mechanisms and pathways, comorbidities, and other pathologies that lead to AD and related dementias. Selection of the best models requires us to address the following: (1) which animal species, strains, and genetic backgrounds are most appropriate; (2) which models permit efficient use throughout the drug development pipeline; (3) the translatability of behavioral-cognitive assays from animals to patients; and (4) how to match potential AD therapeutics with particular models. Best practice guidelines to improve reproducibility also need to be developed for consistent use of these models in different research settings. To enhance translational predictability, we discuss a multi-model evaluation strategy to de-risk the successful transition of pre-clinical drug assets to the clinic.
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Affiliation(s)
| | | | | | | | | | | | - Nicholas T. Seyfried
- Departments of Biochemistry and NeurologyEmory School of MedicineAtlantaGeorgiaUSA
| | - Andrea J. Tenner
- Department of Molecular Biology and BiochemistryUniversity of CaliforniaIrvineCaliforniaUSA
| | | | | | - Lisa J. Bain
- Independent Science and Medical WriterElversonPennsylvaniaUSA
| | - April Ross
- Former Alzheimer's Association EmployeeChicagoIllinoisUSA
| | | | - Bruce T. Lamb
- Indiana University School of MedicineStark Neurosciences Research InstituteIndianapolisIndianaUSA
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31
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Lee JR, Choe SH, Kim YH, Cho HM, Park HR, Lee HE, Jin YB, Kim JS, Jeong KJ, Park SJ, Huh JW. Longitudinal profiling of the blood transcriptome in an African green monkey aging model. Aging (Albany NY) 2020; 13:846-864. [PMID: 33290253 PMCID: PMC7834999 DOI: 10.18632/aging.202190] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Accepted: 10/22/2020] [Indexed: 12/14/2022]
Abstract
African green monkeys (AGMs, Chlorocebus aethiops) are Old World monkeys which are used as experimental models in biomedical research. Recent technological advances in next generation sequencing are useful for unraveling the genetic mechanisms underlying senescence, aging, and age-related disease. To elucidate the normal aging mechanisms in older age, the blood transcriptomes of nine healthy, aged AGMs (15‒23 years old), were analyzed over two years. We identified 910‒1399 accumulated differentially expressed genes (DEGs) in each individual, which increased with age. Aging-related DEGs were sorted across the three time points. A major proportion of the aging-related DEGs belonged to gene ontology (GO) categories involved in translation and rRNA metabolic processes. Next, we sorted common aging-related DEGs across three time points over two years. Common aging-related DEGs belonged to GO categories involved in translation, cellular component biogenesis, rRNA metabolic processes, cellular component organization, biogenesis, and RNA metabolic processes. Furthermore, we identified 29 candidate aging genes that were upregulated across the time series analysis. These candidate aging genes were linked to protein synthesis. This study describes a changing gene expression pattern in AGMs during aging using longitudinal transcriptome sequencing. The candidate aging genes identified here may be potential targets for the treatment of aging.
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Affiliation(s)
- Ja-Rang Lee
- Primate Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56216, Republic of Korea
| | - Se-Hee Choe
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea.,Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Young-Hyun Kim
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Hyeon-Mu Cho
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea.,Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Hye-Ri Park
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea.,Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
| | - Hee-Eun Lee
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Yeung Bae Jin
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Ji-Su Kim
- Primate Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup 56216, Republic of Korea
| | - Kang Jin Jeong
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Sang-Je Park
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea
| | - Jae-Won Huh
- National Primate Research Center, Korea Research Institute of Bioscience and Biotechnology, Cheongju 28116, Republic of Korea.,Department of Functional Genomics, KRIBB School of Bioscience, Korea University of Science and Technology (UST), Daejeon 34113, Republic of Korea
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32
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Wey TW, Roberge É, Legault V, Kemnitz JW, Ferrucci L, Cohen AA. An Emergent Integrated Aging Process Conserved Across Primates. J Gerontol A Biol Sci Med Sci 2020; 74:1689-1698. [PMID: 31046108 DOI: 10.1093/gerona/glz110] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Indexed: 12/22/2022] Open
Abstract
Aging is a complex process emerging from integrated physiological networks. Recent work using principal component analysis (PCA) of multisystem biomarkers proposed a novel fundamental physiological process, "integrated albunemia," which was consistent across human populations and more strongly associated with age and mortality risk than individual biomarkers. Here we tested for integrated albunemia and associations with age and mortality across six diverse nonhuman primate species and humans. PCA of 13 physiological biomarkers recovered in all species a primary axis of variation (PC1) resembling integrated albunemia, which increased with age in all but one species but was less predictive of mortality risk. Within species, PC1 scores were often reliably recovered with a minimal biomarker subset and usually stable between sexes. Even among species, correlations in PC1 structure were often strong, but the effect of phylogeny was inconclusive. Thus, integrated albunemia likely reflects an evolutionarily conserved process across primates and appears to be generally associated with aging but not necessarily with negative impacts on survival. Integrated albunemia is unlikely to be the only conserved emergent physiological process; our findings hence have implications both for the evolution of the aging process and of physiological networks more generally.
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Affiliation(s)
- Tina W Wey
- Groupe de recherche PRIMUS, Department of Family Medicine, University of Sherbrooke, Canada
| | - Émy Roberge
- Groupe de recherche PRIMUS, Department of Family Medicine, University of Sherbrooke, Canada
| | - Véronique Legault
- Groupe de recherche PRIMUS, Department of Family Medicine, University of Sherbrooke, Canada
| | - Joseph W Kemnitz
- Department of Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison.,Wisconsin National Primate Research Center, University of Wisconsin-Madison
| | - Luigi Ferrucci
- Translational Gerontology Branch, Longitudinal Studies Section, National Institute on Aging, National Institutes of Health, MedStar Harbor Hospital, Baltimore, Maryland
| | - Alan A Cohen
- Groupe de recherche PRIMUS, Department of Family Medicine, University of Sherbrooke, Canada
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33
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Olstad KJ, Imai DM, Keesler RI, Reader R, Morrison JH, Roberts JA, Capitanio JP, Didier ES, Kuroda MJ, Simmons H, Salimi S, Mattison JA, Ikeno Y, Ladiges W. Development of a Geropathology Grading Platform for nonhuman primates. ACTA ACUST UNITED AC 2020; 2:16-19. [PMID: 33283205 PMCID: PMC7717498 DOI: 10.31491/apt.2020.03.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A geropathology grading platform (GGP) for assessing age-related lesions has been established and validated for in inbred strain of mice. Because nonhuman primates (NHPs) share significant similarities in aging and spontaneous chronic diseases with humans, they provide excellent translational value for correlating histopathology with biological and pathological events associated with increasing age. Descriptive age-associated pathology has been described for rhesus macaques and marmosets, but a grading platform similar to the mouse GGP does not exist. The value of these NHP models is enhanced by considerable historical data from clinical, bio-behavioral, and social domains that align with health span in these animals. Successful adaptation of the mouse GGP for NHPs will include 1) expanding the range of organs examined; 2) standardizing necropsy collection, tissue trimming, and descriptive lesion terminology; 3) expanding beyond rhesus macaques and marmosets to include other commonly used NHPs in research; and 4) creating a national resource for age-related pathology to complement the extensive in-life datasets. Adaptation of the GGP to include translational models other than mice will be crucial to advance geropathology designed to enhance aging research.
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Affiliation(s)
- Katie J Olstad
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Denise M Imai
- Comparative Pathology Laboratory, University of California, Davis, CA, USA
| | - Rebekah I Keesler
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Rachel Reader
- California National Primate Research Center, University of California, Davis, CA, USA
| | - John H Morrison
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Jeffery A Roberts
- California National Primate Research Center, University of California, Davis, CA, USA
| | - John P Capitanio
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Elizabeth S Didier
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Marcelo J Kuroda
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Heather Simmons
- Wisconsin National Primate Research Center, University of Wisconsin-Madison, Madison, WI, USA
| | - Shabnam Salimi
- School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Julie A Mattison
- Translational Gerontology Branch, National Institute on Aging, NIH, Dickerson, MD, USA
| | - Yuji Ikeno
- Barshop Institute for Longevity and Aging Studies and Department of Pathology, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
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34
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Alzheimer's disease: A clinical perspective and future nonhuman primate research opportunities. Proc Natl Acad Sci U S A 2019; 116:26224-26229. [PMID: 31871211 DOI: 10.1073/pnas.1912954116] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that is the sixth leading cause of death and the most common cause of dementia worldwide. Over the last few decades, significant advancements have been made in our understanding of AD by investigating the molecular mechanisms underlying amyloid-β and tau pathology. Despite this progress, no disease-modifying treatments exist for AD, an issue that will exacerbated by the rising costs and prevalence of the disorder. Moreover, effective therapies to address the devastating cognitive and behavioral symptoms are also urgently needed. This perspective focuses on the value of nonhuman primate (NHP) models in bridging the molecular, circuit, and behavioral levels of analysis to better understand the complex genetic and environmental/lifestyle factors that contribute to AD pathogenesis. These investigations could provide an opportunity for translating our understanding of the pathogenesis and physiological mechanisms underlying AD and related disorders into new diagnostic approaches and disease-modifying therapies to prevent disease or restore brain function for symptomatic individuals.
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35
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Duan J, Yin B, Li W, Chai T, Liang W, Huang Y, Tan X, Zheng P, Wu J, Li Y, Li Y, Zhou W, Xie P. Age-related changes in microbial composition and function in cynomolgus macaques. Aging (Albany NY) 2019; 11:12080-12096. [PMID: 31837260 PMCID: PMC6949106 DOI: 10.18632/aging.102541] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 11/19/2019] [Indexed: 12/24/2022]
Abstract
Age can significantly affect human physiology and disease risk. Recent studies have shown that age may affect the composition and function of the gut microbiota, but the underlying mechanisms remain largely unknown. Non-human primates are an ideal model for uncovering how age shapes the gut microbiota, as their microbial composition is highly similar to that of humans and is not easily affected by confounding factors. Here, using the 16S rRNA and metagenomic sequencing methods, we characterized the microbial phenotypes of 16 female cynomolgus macaques from three age groups (young, adult and old). Our findings revealed significant differences in microbial composition among the three groups. With increased age, the relative abundances of Veillonellaceae, Coriobacteriaceae and Succinivibrionaceae were significantly increased, Ruminococcaceae and Rikenellaceae were significantly decreased at the family level. Functional enrichment showed that genes that differed among the three groups were mainly involved in arginine biosynthesis, purine metabolism and microbial polysaccharides metabolism. Moreover, CAZymes corresponding to polysaccharide degrading activities were also observed among the three groups. In conclusion, we characterized the composition and function of the gut microbiota at different ages, and our findings provide a new entry point for understanding the effects of age on the human body.
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Affiliation(s)
- Jiajia Duan
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Bangmin Yin
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Li
- Department of Neurology, Army Medical Center of PLA, Chongqing, China
| | - Tingjia Chai
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China
| | - Weiwei Liang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Yu Huang
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Xunmin Tan
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Peng Zheng
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Jing Wu
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, Chongqing, China
| | - Yifan Li
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China.,Department of Neurology, Army Medical Center of PLA, Chongqing, China
| | - Yan Li
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Wei Zhou
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China
| | - Peng Xie
- NHC Key Laboratory of Diagnosis and Treatment on Brain Functional Diseases, Chongqing Medical University, Chongqing, China.,The M.O.E. Key Laboratory of Laboratory Medical Diagnostics, The College of Laboratory Medicine, Chongqing Medical University, Chongqing, China.,Department of Neurology, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
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36
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Walker EM, Slisarenko N, Gerrets GL, Kissinger PJ, Didier ES, Kuroda MJ, Veazey RS, Jazwinski SM, Rout N. Inflammaging phenotype in rhesus macaques is associated with a decline in epithelial barrier-protective functions and increased pro-inflammatory function in CD161-expressing cells. GeroScience 2019; 41:739-757. [PMID: 31713098 PMCID: PMC6925095 DOI: 10.1007/s11357-019-00099-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Accepted: 08/29/2019] [Indexed: 02/06/2023] Open
Abstract
The development of chronic inflammation, called inflammaging, contributes to the pathogenesis of age-related diseases. Although it is known that both B and T lymphocyte compartments of the adaptive immune system deteriorate with advancing age, the impact of aging on immune functions of Th17-type CD161-expressing innate immune cells and their role in inflammaging remain incompletely understood. Here, utilizing the nonhuman primate model of rhesus macaques, we report that a dysregulated Th17-type effector function of CD161+ immune cells is associated with leaky gut and inflammatory phenotype of aging. Higher plasma levels of inflammatory cytokines IL-6, TNF-α, IL-1β, GM-CSF, IL-12, and Eotaxin correlated with elevated markers of gut permeability including LPS-binding protein (LBP), intestinal fatty acid binding protein (I-FABP), and sCD14 in aging macaques. Further, older macaques displayed significantly lower frequencies of circulating Th17-type immune cells comprised of CD161+ T cell subsets, NK cells, and innate lymphoid cells. Corresponding with the increased markers of gut permeability, production of the type-17 cytokines IL-17 and IL-22 was impaired in CD161+ T cell subsets and NK cells, along with a skewing towards IFN-γ cytokine production. These findings suggest that reduced frequencies of CD161+ immune cells along with a specific loss in Th17-type effector functions contribute to impaired gut barrier integrity and systemic inflammation in aging macaques. Modulating type-17 immune cell functions via cytokine therapy or dietary interventions towards reducing chronic inflammation in inflammaging individuals may have the potential to prevent or delay age-related chronic diseases and improve immune responses in the elderly population.
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Affiliation(s)
- Edith M Walker
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, USA
| | - Nadia Slisarenko
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, USA
| | - Giovanni L Gerrets
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, USA
| | - Patricia J Kissinger
- School of Public Health & Tropical Medicine, Tulane University, New Orleans, LA, USA
| | - Elizabeth S Didier
- Center for Comparative Medicine and California National Primate Research Center, University of California Davis, Davis, CA, USA
| | - Marcelo J Kuroda
- Center for Comparative Medicine and California National Primate Research Center, University of California Davis, Davis, CA, USA
| | - Ronald S Veazey
- Division of Comparative Pathology, Tulane National Primate Research Center, Covington, LA, USA
| | | | - Namita Rout
- Division of Microbiology, Tulane National Primate Research Center, Covington, LA, USA.
- Tulane Center for Aging, Tulane University, New Orleans, LA, USA.
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37
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Madimenos FC, Liebert MA, Cepon‐Robins TJ, Urlacher SS, Josh Snodgrass J, Sugiyama LS, Stieglitz J. Disparities in bone density across contemporary Amazonian forager‐horticulturalists: Cross‐population comparison of the Tsimane and Shuar. AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY 2019; 171:50-64. [DOI: 10.1002/ajpa.23949] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 09/26/2019] [Accepted: 10/07/2019] [Indexed: 01/12/2023]
Affiliation(s)
- Felicia C. Madimenos
- Department of Anthropology Queens College (CUNY) Flushing New York
- New York Consortium on Evolutionary Primatology (NYCEP) New York New York
| | - Melissa A. Liebert
- Department of Anthropology Northern Arizona University Flagstaff Arizona
| | | | | | | | - Lawrence S. Sugiyama
- Department of Anthropology University of Oregon Eugene
- Institute of Cognitive and Decision Sciences University of Oregon Eugene Oregon
| | - Jonathan Stieglitz
- Université Toulouse 1 Capitole Toulouse France
- Institute for Advanced Study in Toulouse Toulouse France
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38
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Abstract
Traditional animal models have been used to make seminal discoveries in biomedical research including a better understanding of the biology of the aging process. However, translation of these findings from laboratory to clinical populations has likely been hindered due to fundamental biological and physiological differences between common laboratory animals and humans. Non-human primates (NHP) may serve as an effective bridge towards translation, and short-lived NHP like the common marmoset offer many advantages as models for aging research. Here, we address these advantages and discuss what is currently understood about the changes in physiology and pathology that occur with age in the marmoset. In addition, we discuss how aging research might best utilize this model resource, and outline an ongoing study to address whether pharmaceutical intervention can slow aging in the marmoset. With this manuscript, we clarify how common marmosets might assist researchers in geroscience as a potential model for pre-clinical translation.
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Affiliation(s)
- Corinna N Ross
- Department of Science and Mathematics, Texas A&M University San Antonio, San Antonio, TX, USA.,The Sam and Ann Barshop Institute for Longevity and Aging Studies and The University of Texas Health Science Center at San Antonio, San Antonio TX, USA
| | - Adam B Salmon
- The Sam and Ann Barshop Institute for Longevity and Aging Studies and The University of Texas Health Science Center at San Antonio, San Antonio TX, USA.,Department of Molecular Medicine, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA.,Geriatric Research, Education and Clinical Center, South Texas Veterans Health Care System, San Antonio, TX, USA
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39
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Chen ZZ, Niu YY. Stem cell therapy for Parkinson's disease using non-human primate models. Zool Res 2019; 40:349-357. [PMID: 31343853 PMCID: PMC6755115 DOI: 10.24272/j.issn.2095-8137.2019.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/26/2019] [Indexed: 12/23/2022] Open
Abstract
Stem cell therapy (SCT) for Parkinson's disease (PD) has received considerable attention in recent years. Non-human primate (NHP) models of PD have played an instrumental role in the safety and efficacy of emerging PD therapies and facilitated the translation of initiatives for human patients. NHP models of PD include primates with 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced parkinsonism, who are responsive to dopamine replacement therapies, similar to human PD patients. Extensive research in SCT has been conducted to better treat the progressive dopaminergic neurodegeneration that underlies PD. For effective application of SCT in PD, however, a number of basic parameters still need to be tested and optimized in NHP models, including preparation and storage of cells for engraftment, methods of transplantation, choice of target sites, and timelines for recovery. In this review, we discuss the current status of NHP models of PD in stem cell research. We also analyze the advances and remaining challenges for successful clinical translation of SCT for this persistent disease.
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Affiliation(s)
- Zhen-Zhen Chen
- Faculty of Life Science and Technology, Kunming University of Science and Technology, Kunming Yunnan 650500, China
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming Yunnan 650500
| | - Yu-Yu Niu
- Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming Yunnan 650500, China; E-mail:
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40
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Noninvasive spinal neuromodulation to map and augment lower urinary tract function in rhesus macaques. Exp Neurol 2019; 322:113033. [PMID: 31400304 DOI: 10.1016/j.expneurol.2019.113033] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 07/15/2019] [Accepted: 08/06/2019] [Indexed: 12/25/2022]
Abstract
Dysfunction of the lower urinary tract (LUT) is prevalent in neurological disorders, including multiple sclerosis, stroke, spinal cord injury and neurodegenerative conditions. Common symptoms include urgency, incontinence, and urinary retention. Recent advances in neuromodulation have resulted in improved treatments for overactive bladder symptoms of urgency, frequency, and nocturia. However, there are presently no treatments available for the induction of voiding to overcome urinary retention. We demonstrate that transcutaneous spinal cord stimulation (TSCS), a non-invasive intervention, applied over the thoracolumbar spine in neurologically intact rhesus macaques can activate the LUT, including activation of the bladder detrusor muscle, the urethral sphincter and pelvic floor muscles. Urodynamic studies show improved voiding efficiency and decreased post-voiding residual volumes in the bladder, while maintaining coordinated activity in the detrusor and sphincter with physiologic detrusor peak pressure, contraction duration, and urine flow rate remaining unchanged. We conclude that TSCS may represent a novel approach to activate the LUT and enable voiding in select neurological conditions.
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41
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Belyakov AV, Semenov DG. Stimulation of Cognitive Abilities in Aged Macaques via Moderate Hypobaric Hypoxia. ADVANCES IN GERONTOLOGY 2019. [DOI: 10.1134/s207905701902005x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Rodriguez-Polo I, Stauske M, Becker A, Bartels I, Dressel R, Behr R. Baboon induced pluripotent stem cell generation by piggyBac transposition of reprogramming factors. Primate Biol 2019; 6:75-86. [PMID: 32110718 PMCID: PMC7041535 DOI: 10.5194/pb-6-75-2019] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2019] [Accepted: 07/01/2019] [Indexed: 12/13/2022] Open
Abstract
Clinical application of regenerative therapies using embryonic or induced pluripotent stem cells is within reach. Progress made during recent years has encouraged researchers to address remaining open questions in order to finally translate experimental cell replacement therapies into application in patients. To achieve this, studies in translationally relevant animal models are required to make the final step to the clinic. In this context, the baboon (Papio anubis) may represent a valuable nonhuman primate (NHP) model to test cell replacement therapies because of its close evolutionary relationship to humans and its large body size. In this study, we describe the reprogramming of adult baboon skin fibroblasts using the piggyBac transposon system. Via transposon-mediated overexpression of six reprogramming factors, we generated five baboon induced pluripotent stem cell (iPSC) lines. The iPSC lines were characterized with respect to alkaline phosphatase activity, pluripotency factor expression analysis, teratoma formation potential, and karyotype. Furthermore, after initial cocultivation with mouse embryonic fibroblasts, we were able to adapt iPSC lines to feeder-free conditions. In conclusion, we established a robust and efficient protocol for iPSC generation from adult baboon fibroblasts.
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Affiliation(s)
- Ignacio Rodriguez-Polo
- Research Platform Degenerative Diseases, German Primate Center –
Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen,
Germany
- German Center for Cardiovascular Research (DZHK), Partner site,
Göttingen, Germany
| | - Michael Stauske
- Research Platform Degenerative Diseases, German Primate Center –
Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen,
Germany
- German Center for Cardiovascular Research (DZHK), Partner site,
Göttingen, Germany
- current address: BlueRock Therapeutics, 101 College St, PMCRT 14-301,
Toronto, ON M5G 1L7, Canada
| | - Alexander Becker
- Research Platform Degenerative Diseases, German Primate Center –
Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen,
Germany
| | - Iris Bartels
- Institute of Human Genetics, University Medical Center Göttingen,
Robert-Koch-Str. 40, 37075 Göttingen, Germany
| | - Ralf Dressel
- German Center for Cardiovascular Research (DZHK), Partner site,
Göttingen, Germany
- Institute of Cellular and Molecular Immunology, University Medical
Center Göttingen, Robert-Koch-Str. 40, 37075 Göttingen, Germany
| | - Rüdiger Behr
- Research Platform Degenerative Diseases, German Primate Center –
Leibniz Institute for Primate Research, Kellnerweg 4, 37077 Göttingen,
Germany
- German Center for Cardiovascular Research (DZHK), Partner site,
Göttingen, Germany
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43
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Chiu KB, Lee KM, Robillard KN, MacLean AG. A Method to Investigate Astrocyte and Microglial Morphological Changes in the Aging Brain of the Rhesus Macaque. Methods Mol Biol 2019; 1938:265-276. [PMID: 30617987 DOI: 10.1007/978-1-4939-9068-9_19] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
With a rapidly aging population, studies of neuroinflammation and degeneration associated with eugeric aging are becoming critical. Using the unique archive at the Tulane National Primate Research Center as a resource, we have developed tools to quantify morphological changes in astrocytes and microglia across the life span of monkeys. This method can be used for morphometric studies of multiple parameters simultaneously in an unbiased manner.
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Affiliation(s)
- Kevin B Chiu
- Tulane National Primate Research Center, Covington, LA, USA.,Department of Biomedical Engineering, Tulane University, New Orleans, LA, USA
| | - Kim M Lee
- Tulane National Primate Research Center, Covington, LA, USA.,Vanderbilt Hospital Nashville, Nashville, TN, USA.,Tulane Program in Biomedical Sciences, Tulane University School of Medicine, New Orleans, LA, USA
| | - Katelyn N Robillard
- Tulane National Primate Research Center, Covington, LA, USA.,Neuroscience Center of Excellence, Louisiana State University Health Sciences Center, New Orleans, LA, USA
| | - Andrew G MacLean
- Tulane National Primate Research Center, Covington, LA, USA. .,Tulane Program in Biomedical Sciences, Tulane University School of Medicine, New Orleans, LA, USA. .,Tulane Brain Institute, Tulane University, New Orleans, LA, USA. .,Department of Microbiology and Immunology, Tulane University School of Medicine, New Orleans, LA, USA.
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44
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Long H, Wang Y, Wang L, Lu Y, Nie Y, Cai Y, Liu Z, Jia M, Lyu Q, Kuang Y, Sun Q. Age-related nomograms of serum anti-Mullerian hormone levels in female monkeys: Comparison of rhesus (Macaca mulatta) and cynomolgus (Macaca fascicularis) monkeys. Gen Comp Endocrinol 2018; 269:171-176. [PMID: 30243886 DOI: 10.1016/j.ygcen.2018.09.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 09/19/2018] [Accepted: 09/19/2018] [Indexed: 01/09/2023]
Abstract
AMH is regarded as a promising predictor for ovarian reserve in humans and non-human primate, and widely used in human medicine to predict ovarian response to gonadotropin, menopause and premature ovarian failure. However, large data set on the range of AMH levels in nonhuman primates is still scarce, which limited its applications largely. In this study, age-related AMH nomograms of rhesus (Macaca mulatta) and cynomolgus (Macaca fascicularis) were produced and compared. 219 rhesus and 529 cynomolgus monkeys ranging from infancy to adult were included. In total, the mean serum AMH levels in cynomolgus monkeys were higher than that of rhesus monkeys (14.6 ± 5.3 ng/ml vs 9.5 ± 6.0 ng/ml, P < 0.001). AMH was inversely correlated with age (r = -0.371, P < 0.001) in rhesus, while the negative correlation did not reach statistical significance in cynomolgus monkeys (r = -0.044, P = 0.156). The maximum mean AMH levels were attained at the subgroup of 4-11 yr and the lowest AMH levels were obtained at the subgroup of ≧12 yr in both primates, corresponding to their fertility potential. In rhesus monkeys, from 1 to 11 years old, AMH level remained stable (1-3 yr: ß = 2.784, P = 0.340; 4-11 yr: r = 0.100, P = 0.110) whereas from 12 yr onward, an inverse correlation between AMH and age (r = -0.450, P = 0.02) was observed. Similarly, AMH appeared stable from 1 to 3 yr (ß = -2.289, P = 0.429) and showed an inverse correlation with age (r = -0.521, P < 0.001) from 12 yr onward in cynomolgus monkeys, while a positive correlation was observed (r = 0.156, P = 0.001) from 4 to 11 yr. AMH levels were relatively stable across the menstrual cycle in both primates and no seasonal difference for AMH levels was observed in rhesus monkeys. Body mass index did not affect serum AMH levels in both primates. Our nomograms of serum AMH provide a reference guide on AMH longitudinal distribution by age for Macaca monkeys and might facilitate its applications.
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Affiliation(s)
- Hui Long
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Rd, Shanghai 200001, China
| | - Yan Wang
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 120 Yueyang Road, Shanghai 200031, China
| | - Li Wang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Rd, Shanghai 200001, China
| | - Yong Lu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 120 Yueyang Road, Shanghai 200031, China
| | - Yanhong Nie
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 120 Yueyang Road, Shanghai 200031, China
| | - Yijun Cai
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 120 Yueyang Road, Shanghai 200031, China
| | - Zhen Liu
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 120 Yueyang Road, Shanghai 200031, China
| | - Miaomiao Jia
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Rd, Shanghai 200001, China
| | - Qifeng Lyu
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Rd, Shanghai 200001, China.
| | - Yanping Kuang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, 639 Zhizaoju Rd, Shanghai 200001, China.
| | - Qiang Sun
- Institute of Neuroscience, State Key Laboratory of Neuroscience, Key Laboratory of Primate Neurobiology, CAS Center for Excellence in Brain Science and Intelligence Technology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, 120 Yueyang Road, Shanghai 200031, China.
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45
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Bentley RA, Ross CN, O'Brien MJ. Obesity, Metabolism, and Aging: A Multiscalar Approach. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 155:25-42. [PMID: 29653680 DOI: 10.1016/bs.pmbts.2017.11.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Obesity contributes to the aging process through the alteration of metabolic pathways evidenced biochemically in the relationship between caloric restriction and longevity. Humans have entered into an era of metabolism and aging entirely unprecedented in their evolution, with a diet that, for many, contains a majority of calories as sugar and yields an expected lifespan of over 80years in industrialized nations. Deeply embedded in the complex issue of obesity are questions of behavior, causality versus correlation, and appropriate models. For example, are primates a better reference than mice for studying metabolic connections between obesity and aging? We consider those issues from the standpoint of life-history theory, especially implications of the interplay of refined sugar and socioeconomic disparities for the future of human health.
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Affiliation(s)
| | - Corinna N Ross
- Texas A&M University-San Antonio, San Antonio, TX, United States
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46
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Gad PN, Kokikian N, Christe KL, Edgerton VR, Havton LA. Noninvasive neurophysiological mapping of the lower urinary tract in adult and aging rhesus macaques. J Neurophysiol 2018; 119:1521-1527. [PMID: 29361664 DOI: 10.1152/jn.00840.2017] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The lower urinary tract (LUT) may be activated by spinal cord stimulation, but the physiological mapping characteristics of LUT activation with noninvasive transcutaneous spinal cord stimulation (TSCS) are not known. The effects of aging on the contractile properties of the detrusor are also not well understood. Therefore, TSCS was applied over the T10/T11 to L6/L7 spinous processes in adult ( n = 6) and aged ( n = 9) female rhesus macaques. A combination of urodynamic studies and electromyography recordings of the external urethral sphincter (EUS), external anal sphincter (EAS), and pelvic floor muscles was performed. Distinct functional maps were demonstrated for TSCS-evoked detrusor and urethral pressures and for the activation of the EUS, EAS, and pelvic floor muscles. The magnitude of responses for each peripheral target organ was dependent on TSCS location and strength. The strongest detrusor contraction was observed with TSCS at the L1/L2 site in adults and the L3/L4 site in aged subjects. TSCS-evoked bladder pressure at the L1/L2 site was significantly higher for the adults compared with the aged subjects ( P < 0.05). Cumulative normalized TSCS-evoked pressures, calculated for five consecutive sites between the T11/T12 and L3/L4 levels, were significantly lower for aged compared with adult subjects ( P < 0.05). The aged animals also showed a caudal shift for the TSCS site that generated the strongest detrusor contraction. We conclude that natural aging in rhesus macaques is associated with decreased detrusor contractility, a finding of significant translational research relevance as detrusor underactivity is a common occurrence with aging in humans. NEW & NOTEWORTHY Transcutaneous spinal cord stimulation (TSCS) was used to map lower urinary tract function in adult and aged rhesus macaques. Aging was associated with decreased peak pressure responses to TSCS, reduced cumulative normalized evoked bladder pressure responses, and a caudal shift for the site generating the strongest TSCS-induced detrusor contraction. We demonstrate the utility of TSCS as a new diagnostic tool for detrusor contractility assessments and conclude that aging is associated with decreased detrusor contractility in primates.
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Affiliation(s)
- Parag N Gad
- Department of Integrative Biology and Physiology, University of California , Los Angeles, California
| | - Nelly Kokikian
- Department of Integrative Biology and Physiology, University of California , Los Angeles, California
| | - Kari L Christe
- California National Primate Research Center, University of California , Davis, California
| | - V Reggie Edgerton
- Department of Integrative Biology and Physiology, University of California , Los Angeles, California.,Department of Neurobiology, David Geffen School of Medicine at University of California , Los Angeles, California.,Department of Neurosurgery, David Geffen School of Medicine at University of California , Los Angeles, California.,Brain Research Institute, University of California , Los Angeles, California.,Institut Guttmann, Hospital de Neurorehabilitació, Universitat Autònoma de Barcelona, Badalona, Spain.,Centre for Neuroscience and Regenerative Medicine, University of Technology , Sydney , Australia
| | - Leif A Havton
- Department of Neurobiology, David Geffen School of Medicine at University of California , Los Angeles, California.,Department of Neurology, David Geffen School of Medicine at University of California , Los Angeles, California
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47
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Drury SS, Howell BR, Jones C, Esteves K, Morin E, Schlesinger R, Meyer JS, Baker K, Sanchez MM. Shaping long-term primate development: Telomere length trajectory as an indicator of early maternal maltreatment and predictor of future physiologic regulation. Dev Psychopathol 2017; 29:1539-1551. [PMID: 29162166 PMCID: PMC5864972 DOI: 10.1017/s0954579417001225] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The molecular, neurobiological, and physical health impacts of child maltreatment are well established, yet mechanistic pathways remain inadequately defined. Telomere length (TL) decline is an emerging molecular indicator of stress exposure with definitive links to negative health outcomes in maltreated individuals. The multiple confounders endemic to human maltreatment research impede the identification of causal pathways. This study leverages a unique randomized, cross-foster, study design in a naturalistic translational nonhuman primate model of infant maltreatment. At birth, newborn macaques were randomly assigned to either a maltreating or a competent control mother, balancing for sex, biological mother parenting history, and social rank. Offspring TL was measured longitudinally across the first 6 months of life (infancy) from peripheral blood. Hair cortisol accumulation was also determined at 6, 12, and 18 months of age. TL decline was greater in animals randomized to maltreatment, but also interacted with biological mother group. Shorter TL at 6 months was associated with higher mean cortisol levels through 18 months (juvenile period) when controlling for relevant covariates. These results suggest that even under the equivalent social, nutritional, and environmental conditions feasible in naturalistic translational nonhuman primate models, early adverse caregiving results in lasting molecular scars that foreshadow elevated health risk and physiologic dysregulation.
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48
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Ibáñez-Contreras A, Hernández-Arciga U, Poblano A, Arteaga-Silva M, Hernández-Godínez B, Mendoza-Cuevas GI, Toledo-Pérez R, Alarcón-Aguilar A, González-Puertos VY, Konigsberg M. Electrical activity of sensory pathways in female and male geriatric Rhesus monkeys (Macaca mulatta), and its relation to oxidative stress. Exp Gerontol 2017; 101:80-94. [PMID: 29146475 DOI: 10.1016/j.exger.2017.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2017] [Revised: 10/21/2017] [Accepted: 11/07/2017] [Indexed: 10/18/2022]
Abstract
Synapses loss during aging has been related to decreased neuronal excitability and reduced electrophysiological activity in the nervous system, as well as to increased brain damage. Those physiological and biochemical alterations have been related to the oxidative stress increase associated with old age. The main substrate of lipid peroxidation (LPX) in the central and peripheral nervous systems are the myelin sheaths, and their damage generates a delayed nerve conduction velocity. However, studies in which the neural conduction velocity is related to changes in the redox state are still lacking. Therefore, our aim was to correlate the sensory neural pathways delay in healthy geriatric Rhesus monkeys (Macaca mulatta) with the oxidative stress associated with physiological aging. Twenty-four monkeys were divided into four groups according to age and gender. Auditory, visual, and somatosensory evoked potentials were obtained. Superoxide dismutase, catalase, and glutathione peroxidase enzymatic activity, as well as LPX, were determined from blood samples. Our results showed significant differences between the older and younger age groups in all neural generators of the different sensory pathways evaluated, along with an increase in LPX and the antioxidant enzymatic activities. It suggests that, even though the enzymatic activity was found to be higher in older monkeys, probably as a compensatory effect, it was not enough to avoid LPX damage and the declined electric activity associated with age.
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Affiliation(s)
- A Ibáñez-Contreras
- Posgrado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico; APREXBIO S.A.S. de C.V., Laboratorio de Primatología, Ciudad de México, México D.F., Mexico; Biología Integral para Vertebrados (BIOINVERT®), Unidad de Experimentación Animal, Estado de México, Mexico; Centro de Investigación, Proyecto CAMINA A.C. Unidad de Primates No Humanos, Ciudad de México, México D.F., Mexico; Laboratorio de Bioenergética y envejecimiento celular, Depto. de Ciencias de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico
| | - U Hernández-Arciga
- Laboratorio de Bioenergética y envejecimiento celular, Depto. de Ciencias de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico
| | - A Poblano
- Laboratorio de Neurofisiología Cognoscitiva, Instituto Nacional de Rehabilitación, Ciudad de México, México D.F., Mexico
| | - M Arteaga-Silva
- Depto. Biología de la Reproducción, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico
| | - B Hernández-Godínez
- Posgrado en Ciencias Biológicas y de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico; APREXBIO S.A.S. de C.V., Laboratorio de Primatología, Ciudad de México, México D.F., Mexico; Biología Integral para Vertebrados (BIOINVERT®), Unidad de Experimentación Animal, Estado de México, Mexico; Centro de Investigación, Proyecto CAMINA A.C. Unidad de Primates No Humanos, Ciudad de México, México D.F., Mexico; Centro Nacional de Investigación en Instrumentación e Imagenología Médica (CI3M), Universidad Autónoma Metropolitana-Unidad Iztapalapa (UAM-I), México D.F., Mexico
| | - G I Mendoza-Cuevas
- APREXBIO S.A.S. de C.V., Laboratorio de Primatología, Ciudad de México, México D.F., Mexico; Biología Integral para Vertebrados (BIOINVERT®), Unidad de Experimentación Animal, Estado de México, Mexico; Centro de Investigación, Proyecto CAMINA A.C. Unidad de Primates No Humanos, Ciudad de México, México D.F., Mexico
| | - R Toledo-Pérez
- Laboratorio de Bioenergética y envejecimiento celular, Depto. de Ciencias de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico
| | - A Alarcón-Aguilar
- Laboratorio de Bioenergética y envejecimiento celular, Depto. de Ciencias de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico
| | - V Y González-Puertos
- Laboratorio de Bioenergética y envejecimiento celular, Depto. de Ciencias de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico
| | - M Konigsberg
- Laboratorio de Bioenergética y envejecimiento celular, Depto. de Ciencias de la Salud, Universidad Autónoma Metropolitana, Unidad Iztapalapa, México D.F., Mexico.
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49
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Walker LC, Jucker M. The Exceptional Vulnerability of Humans to Alzheimer's Disease. Trends Mol Med 2017; 23:534-545. [PMID: 28483344 DOI: 10.1016/j.molmed.2017.04.001] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 03/22/2017] [Accepted: 04/04/2017] [Indexed: 12/31/2022]
Abstract
Like many humans, non-human primates deposit copious misfolded Aβ protein in the brain as they age. Nevertheless, the complete behavioral and pathologic phenotype of Alzheimer's disease, including Aβ plaques, neurofibrillary (tau) tangles, and dementia, has not yet been identified in a non-human species. Recent research suggests that the crucial link between Aβ aggregation and tauopathy is somehow disengaged in aged monkeys. Understanding why Alzheimer's disease fails to develop in species that are biologically proximal to humans could disclose new therapeutic targets in the chain of events leading to neurodegeneration and dementia.
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Affiliation(s)
- Lary C Walker
- Department of Neurology and Yerkes National Primate Research Center, Emory University, Atlanta, GA 30322, USA.
| | - Mathias Jucker
- Department of Cellular Neurology, Hertie Institute for Clinical Brain Research, University of Tübingen, and the German Center for Neurodegenerative Diseases (DZNE), D-72076 Tübingen, Germany.
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50
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Ward JM, Youssef SA, Treuting PM. Why Animals Die: An Introduction to the Pathology of Aging. Vet Pathol 2017; 53:229-32. [PMID: 26936750 DOI: 10.1177/0300985815612151] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- J M Ward
- Global VetPathology, Montgomery Village, MD, USA
| | - S A Youssef
- Dutch Molecular Pathology Center, Faculty of Veterinary Medicine, Department of Pathobiology, Utrecht University, Utrecht, The Netherlands
| | - P M Treuting
- School of Medicine, Department of Comparative Medicine, University of Washington, Seattle, WA, USA
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