1
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Sheehan S, Mawe S, Chen M, Klug J, Ladiges W, Korstanje R, Mahoney JM. A machine learning approach for quantifying age-related histological changes in the mouse kidney. GeroScience 2024; 46:2571-2581. [PMID: 38103095 PMCID: PMC10828469 DOI: 10.1007/s11357-023-01013-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: 07/10/2023] [Accepted: 11/07/2023] [Indexed: 12/17/2023] Open
Abstract
The ability to quantify aging-related changes in histological samples is important, as it allows for evaluation of interventions intended to effect health span. We used a machine learning architecture that can be trained to detect and quantify these changes in the mouse kidney. Using additional held out data, we show validation of our model, correlation with scores given by pathologists using the Geropathology Research Network aging grading scheme, and its application in providing reproducible and quantifiable age scores for histological samples. Aging quantification also provides the insights into possible changes in image appearance that are independent of specific geropathology-specified lesions. Furthermore, we provide trained classifiers for H&E-stained slides, as well as tutorials on how to use these and how to create additional classifiers for other histological stains and tissues using our architecture. This architecture and combined resources allow for the high throughput quantification of mouse aging studies in general and specifically applicable to kidney tissues.
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Affiliation(s)
| | - Seamus Mawe
- The Jackson Laboratory, Bar Harbor, ME, 04609, USA
| | - Mandy Chen
- The Jackson Laboratory, Bar Harbor, ME, 04609, USA
| | - Jenna Klug
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | | | - J Matthew Mahoney
- The Jackson Laboratory, Bar Harbor, ME, 04609, USA.
- Department of Neurological Sciences, Larner College of Medicine, University of Vermont, Burlington, VT, USA.
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2
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Amor C, Fernández-Maestre I, Chowdhury S, Ho YJ, Nadella S, Graham C, Carrasco SE, Nnuji-John E, Feucht J, Hinterleitner C, Barthet VJA, Boyer JA, Mezzadra R, Wereski MG, Tuveson DA, Levine RL, Jones LW, Sadelain M, Lowe SW. Prophylactic and long-lasting efficacy of senolytic CAR T cells against age-related metabolic dysfunction. NATURE AGING 2024; 4:336-349. [PMID: 38267706 PMCID: PMC10950785 DOI: 10.1038/s43587-023-00560-5] [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: 01/31/2023] [Accepted: 12/18/2023] [Indexed: 01/26/2024]
Abstract
Senescent cells, which accumulate in organisms over time, contribute to age-related tissue decline. Genetic ablation of senescent cells can ameliorate various age-related pathologies, including metabolic dysfunction and decreased physical fitness. While small-molecule drugs that eliminate senescent cells ('senolytics') partially replicate these phenotypes, they require continuous administration. We have developed a senolytic therapy based on chimeric antigen receptor (CAR) T cells targeting the senescence-associated protein urokinase plasminogen activator receptor (uPAR), and we previously showed these can safely eliminate senescent cells in young animals. We now show that uPAR-positive senescent cells accumulate during aging and that they can be safely targeted with senolytic CAR T cells. Treatment with anti-uPAR CAR T cells improves exercise capacity in physiological aging, and it ameliorates metabolic dysfunction (for example, improving glucose tolerance) in aged mice and in mice on a high-fat diet. Importantly, a single administration of these senolytic CAR T cells is sufficient to achieve long-term therapeutic and preventive effects.
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Grants
- R01 CA188134 NCI NIH HHS
- R01 CA190092 NCI NIH HHS
- DP5 OD033055 NIH HHS
- U01 CA224013 NCI NIH HHS
- R35 CA197594 NCI NIH HHS
- P30 CA045508 NCI NIH HHS
- R01 AG065396 NIA NIH HHS
- R01 CA229699 NCI NIH HHS
- P30 CA008748 NCI NIH HHS
- R01 AG082800 NIA NIH HHS
- U01 AG077925 NIA NIH HHS
- S10 OD028632 NIH HHS
- U01 CA210240 NCI NIH HHS
- U.S. Department of Health & Human Services | NIH | National Cancer Institute (NCI)
- NIH-NIA: 1R01 AG082800-01 NIH-Common Fund: 1DP5OD033055-01 Longevity Impetus Grant
- European Research Council (ERC-StG-949667).
- JLM Benevolent Fund. Cancer Research Institute.
- Netherlands Organization for Scientific Research Cancer Research Institute
- Lustgarten Foundation, Thompson Foundation, the Pershing Square Foundation, the Cold Spring Harbor Laboratory and Northwell Health Affiliation, the Northwell Health Tissue Donation Program, the Cold Spring Harbor Laboratory Association, the Simons Foundation (552716), and the National Institutes of Health (5P30CA45508, U01CA210240, R01CA229699, U01CA224013, 1R01CA188134, and 1R01CA190092).
- NIH-NCI (R35CA197594) NIH-NIA (U01AG077925)
- NIH: S10OD028632-01 and P30 CA008748 NIH-NIA: AG065396 Pasteur-Weizmann/Servier Award Leopold Griffuel Award Stephen and Barbara Friedman Chair at MSKCC
- NIH: S10OD028632-01 and P30 CA008748 NIH-NIA: AG065396 Technology Development Fund project grant from MSKCC Geoffrey Beene Chair of Cancer Biology at MSKCC Howard Hughes Medical Institute
- La Caixa Foundation.Mark Foundation.
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Affiliation(s)
- Corina Amor
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA.
| | - Inés Fernández-Maestre
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Louis V. Gerstner Jr Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Yu-Jui Ho
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Courtenay Graham
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sebastian E Carrasco
- Laboratory of Comparative Pathology. Weill Cornell Medicine, Memorial Sloan Kettering Cancer Center, and Rockefeller University, New York, NY, USA
| | - Emmanuella Nnuji-John
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY, USA
- Cold Spring Harbor School of Biological Sciences, Cold Spring Harbor, NY, USA
| | - Judith Feucht
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Cluster of Excellence iFIT, University Children's Hospital Tuebingen, Tuebingen, Germany
| | - Clemens Hinterleitner
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Valentin J A Barthet
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jacob A Boyer
- Lewis Sigler Institute for Integrative Genomics and Department of Chemistry, Princeton University, Princeton, NJ, USA
- Ludwig Institute for Cancer Research, Princeton Branch, Princeton, NJ, USA
| | - Riccardo Mezzadra
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Matthew G Wereski
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Ross L Levine
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Lee W Jones
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Michel Sadelain
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Scott W Lowe
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY, USA
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3
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Sheehan S, Mawe S, Chen M, Klug J, Ladiges W, Korstanje R, Mahoney JM. A machine learning approach for quantifying age-related histological changes in the mouse kidney. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.07.548002. [PMID: 37461572 PMCID: PMC10350062 DOI: 10.1101/2023.07.07.548002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2023]
Abstract
The ability to quantify aging-related changes in histological samples is important, as it allows for evaluation of interventions intended to effect health span. We used a machine learning architecture that can be trained to detect and quantify these changes in the mouse kidney. Using additional held out data, we show validation of our model, correlation with scores given by pathologists using the Geropathology Research Network aging grading scheme, and its application in providing reproducible and quantifiable age scores for histological samples. Aging quantification also provides the insights into possible changes in image appearance that are independent of specific geropathology-specified lesions. Furthermore, we provide trained classifiers for H&E-stained slides, as well as tutorials on how to use these and how to create additional classifiers for other histological stains and tissues using our architecture.This architecture and combined resources allow for the high throughput quantification of mouse aging studies in general and specifically applicable to kidney tissues.
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4
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Amor C, Fernández-Maestre I, Chowdhury S, Ho YJ, Nadella S, Graham C, Carrasco SE, Nnuji-John E, Feucht J, Hinterleitner C, Barthet VJ, Boyer JA, Mezzadra R, Wereski MG, Tuveson DA, Levine RL, Jones LW, Sadelain M, Lowe SW. Prophylactic and long-lasting efficacy of senolytic CAR T cells against age-related metabolic dysfunction. RESEARCH SQUARE 2023:rs.3.rs-3385749. [PMID: 37841853 PMCID: PMC10571605 DOI: 10.21203/rs.3.rs-3385749/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2023]
Abstract
Senescent cells accumulate in organisms over time because of tissue damage and impaired immune surveillance and contribute to age-related tissue decline1,2. In agreement, genetic ablation studies reveal that elimination of senescent cells from aged tissues can ameliorate various age-related pathologies, including metabolic dysfunction and decreased physical fitness3-7. While small-molecule drugs capable of eliminating senescent cells (known as 'senolytics') partially replicate these phenotypes, many have undefined mechanisms of action and all require continuous administration to be effective. As an alternative approach, we have developed a cell-based senolytic therapy based on chimeric antigen receptor (CAR) T cells targeting uPAR, a cell-surface protein upregulated on senescent cells, and previously showed these can safely and efficiently eliminate senescent cells in young animals and reverse liver fibrosis8. We now show that uPAR-positive senescent cells accumulate during physiological aging and that they can be safely targeted with senolytic CAR T cells. Treatment with anti uPAR CAR T cells ameliorates metabolic dysfunction by improving glucose tolerance and exercise capacity in physiological aging as well as in a model of metabolic syndrome. Importantly, a single administration of a low dose of these senolytic CAR T cells is sufficient to achieve long-term therapeutic and preventive effects.
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Affiliation(s)
- Corina Amor
- Cold Spring Harbor Laboratory. Cold Spring Harbor, NY, USA
| | - Inés Fernández-Maestre
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Louis V. Gerstner Jr Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Yu-Jui Ho
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Courtenay Graham
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sebastian E. Carrasco
- Laboratory of Comparative Pathology. Weill Cornell Medicine, Memorial Sloan Kettering Cancer Center, and Rockefeller University, New York, NY, USA
| | - Emmanuella Nnuji-John
- Cold Spring Harbor Laboratory. Cold Spring Harbor, NY, USA
- Cold Spring Harbor School of Biological Sciences, Cold Spring Harbor, NY, USA
| | - Judith Feucht
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Cluster of Excellence iFIT, University Children’s Hospital Tuebingen, Tuebingen, Germany
| | - Clemens Hinterleitner
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Valentin J.A. Barthet
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Jacob A. Boyer
- Lewis Sigler Institute for Integrative Genomics and Department of Chemistry, Princeton University, Princeton, NJ, USA
| | - Riccardo Mezzadra
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Matthew G Wereski
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | | | - Ross L. Levine
- Human Oncology and Pathogenesis Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Lee W Jones
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Michel Sadelain
- Center for Cell Engineering, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Scott W Lowe
- Department of Cancer Biology and Genetics. Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, USA
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5
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Duregon E, Fernandez ME, Martinez Romero J, Di Germanio C, Cabassa M, Voloshchuk R, Ehrlich-Mora MR, Moats JM, Wong S, Bosompra O, Rudderow A, Morrell CH, Camandola S, Price NL, Aon MA, Bernier M, de Cabo R. Prolonged fasting times reap greater geroprotective effects when combined with caloric restriction in adult female mice. Cell Metab 2023; 35:1179-1194.e5. [PMID: 37437544 PMCID: PMC10369303 DOI: 10.1016/j.cmet.2023.05.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/12/2022] [Revised: 01/27/2023] [Accepted: 05/08/2023] [Indexed: 07/14/2023]
Abstract
Emerging new evidence highlights the importance of prolonged daily fasting periods for the health and survival benefits of calorie restriction (CR) and time-restricted feeding (TRF) in male mice; however, little is known about the impact of these feeding regimens in females. We placed 14-month-old female mice on five different dietary regimens, either CR or TRF with different feeding windows, and determined the effects of these regimens on physiological responses, progression of neoplasms and inflammatory diseases, serum metabolite levels, and lifespan. Compared with TRF feeding, CR elicited a robust systemic response, as it relates to energetics and healthspan metrics, a unique serum metabolomics signature in overnight fasted animals, and was associated with an increase in lifespan. These results indicate that daytime (rest-phase) feeding with prolonged fasting periods initiated late in life confer greater benefits when combined with imposed lower energy intake.
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Affiliation(s)
- Eleonora Duregon
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Maria Emilia Fernandez
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Jorge Martinez Romero
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA; Laboratory of Epidemiology and Population Sciences, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Clara Di Germanio
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Meaghan Cabassa
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Romaniya Voloshchuk
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Margaux R Ehrlich-Mora
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Jacqueline M Moats
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Sarah Wong
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Oye Bosompra
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Annamaria Rudderow
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Christopher H Morrell
- Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD 21224, USA
| | - Simonetta Camandola
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Nathan L Price
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Miguel A Aon
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA; Laboratory of Cardiovascular Science, National Institute on Aging, NIH, Baltimore, MD 21224, USA
| | - Michel Bernier
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA
| | - Rafael de Cabo
- Translational Gerontology Branch, National Institute on Aging, National Institutes of Health, Baltimore, MD 21224, USA.
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6
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Wezeman J, Ladiges W. Sex Matters in Aging. The Canagliflozin Story. AGING PATHOBIOLOGY AND THERAPEUTICS 2022; 4:84-86. [PMID: 36540066 PMCID: PMC9762679 DOI: 10.31491/apt.2022.09.091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
A promising and novel approach for identifying anti-aging therapeutics has been the repurposing of clinically approved and readily available drugs in mice. Canagliflozin, a clinically approved safe, and effective drug for type 2 diabetic patients, was recently shown to robustly retard age-related lesions in male mice but less so in female mice. While this type of sex disparity is often seen in the field of aging, it does represent a dilemma of not knowing the cause or how translationally relevant the sex differences would be in older humans treated with Canagliflozin. Thoughtful and mechanistic investigations are needed to understand why these differences are present and whether they can be eliminated by new drugs or drug combinations. Success in using repurposed drugs for aging intervention studies in humans will depend on preclinical research to uncover pathways that can be targeted for the benefit of both sexes.
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Affiliation(s)
- Jackson Wezeman
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
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7
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Canagliflozin retards age-related lesions in heart, kidney, liver, and adrenal gland in genetically heterogenous male mice. GeroScience 2022; 45:385-397. [PMID: 35974129 PMCID: PMC9886729 DOI: 10.1007/s11357-022-00641-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/04/2022] [Indexed: 02/04/2023] Open
Abstract
Canagliflozin (Cana), a clinically important anti-diabetes drug, leads to a 14% increase in median lifespan and a 9% increase in the 90th percentile age when given to genetically heterogeneous male mice from 7 months of age, but does not increase lifespan in female mice. A histopathological study was conducted on 22-month-old mice to see if Cana retarded diverse forms of age-dependent pathology. This agent was found to diminish incidence or severity, in male mice only, of cardiomyopathy, glomerulonephropathy, arteriosclerosis, hepatic microvesicular cytoplasmic vacuolation (lipidosis), and adrenal cortical neoplasms. Protection against atrophy of the exocrine pancreas was seen in both males and females. Thus, the extension of lifespan in Cana-treated male mice, which is likely to reflect host- or tumor-mediated delay in lethal neoplasms, is accompanied by parallel retardation of lesions, in multiple tissues, that seldom if ever lead to death in these mice. Canagliflozin thus can be considered a drug that acts to slow the aging process and should be evaluated for potential protective effects against many other late-life conditions.
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8
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Mishkin N, Ricart Arbona RJ, Carrasco SE, Lawton S, Henderson KS, Momtsios P, Sigar IM, Ramsey KH, Cheleuitte-Nieves C, Monette S, Lipman NS. Reemergence of the Murine Bacterial Pathogen Chlamydia muridarum in Research Mouse Colonies. Comp Med 2022; 72:230-242. [PMID: 35803706 PMCID: PMC9413529 DOI: 10.30802/aalas-cm-22-000045] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Chlamydia muridarum (Cm) was detected in 2 colonies of mice with lymphoplasmacytic pulmonary infiltrates by using PCR and immunohistochemistry. This discovery was unexpected, as Cm infection had not been reported in laboratory mice since the 1940s. A Cm specific PCR assay was developed and testing implemented for the resident colonies of 8 vivaria from 3 academic institutions, 58 incoming mouse shipments from 39 academic institutions, and mice received from 55 commercial breeding colonies (4 vendors). To estimate Cm's global prevalence in research colonies, a database containing 11,387 metagenomic fecal microbiota samples from 120 institutions and a cohort of 900 diagnostic samples from 96 institutions were examined. Results indicate significant prevalence among academic institutions, with Cm detected in 63% of soiled bedding sentinels from 3 institutions; 33% of incoming mouse shipments from 39 academic institutions; 14% of 120 institutions submitting microbiota samples; and 16% of the diagnostic sample cohort. All samples from commercial breeding colonies were negative. In addition, naïve NOD. Cg-PrkdcscidIl2rgtm1Wjl/SzJ (NSG) mice exposed to Cm-shedding mice and/or their soiled bedding developed clinical disease at 21 to 28 d after exposure. These mice had a moderate-to-severe histiocytic and neutro- philic bronchointerstitial pneumonia, with their respiratory epithelium demonstrating inclusions, chlamydial major outer membrane protein immunostaining, and hybridization with a Cm reference sequence (GenBank accession no. U68436). Cm was isolated from lungs, cecum, and feces of a Cm-infected NSG mouse by using HeLa 229 cells. The considerable prevalence of Cm is likely due to widespread global interinstitutional distribution of unique mouse strains and failure to recognize that some of these mice were from enzootically infected colonies. Given that experimental Cm colonization of mice results in a robust immune response and, on occasion, pathology, natural infection may confound experimental results. Therefore, Cm should be excluded and eradicated from enzootically infected mouse colonies.
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Key Words
- cm, chlamydia muridarum
- eb, elementary body
- ffpe, formalin-fixed paraffin embedded
- gem, genetically engineered mouse
- ib, inclusion body
- ifa, immunofluorescence
- ifu, inclusion forming units
- ihc, immunohistochemistry
- ish, in-situ hybridization
- momp, major outer membrane protein
- mopn, mouse pneumonitis virus
- msk, memorial sloan kettering
- nsg, nod.cg-prkdcscid il2rgtm1wjl/szj
- rb, reticulate body
- tlr, toll-like receptor
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Affiliation(s)
- Noah Mishkin
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York,,Corresponding authors. Emails: ,
| | - Rodolfo J Ricart Arbona
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York,,Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York
| | - Sebastian E Carrasco
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York,,Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York
| | | | - Kenneth S Henderson
- Research Animal Diagnostic Services, Charles River Laboratories, Wilmington, Massachusetts, and
| | - Panagiota Momtsios
- Research Animal Diagnostic Services, Charles River Laboratories, Wilmington, Massachusetts, and
| | - Ira M Sigar
- Department of Microbiology and Immunology, Midwestern University, Downers Grove, Illinois
| | - Kyle H Ramsey
- Department of Microbiology and Immunology, Midwestern University, Downers Grove, Illinois
| | - Christopher Cheleuitte-Nieves
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York,,Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York
| | - Sebastien Monette
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York,,Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York
| | - Neil S Lipman
- Tri-Institutional Training Program in Laboratory Animal Medicine and Science, Memorial Sloan Kettering Cancer Center, Weill Cornell Medicine, and The Rockefeller University, New York, New York,,Center of Comparative Medicine and Pathology, Memorial Sloan Kettering Cancer Center and Weill Cornell Medicine, New York, New York,,Corresponding authors. Emails: ,
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9
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Jiang Z, Wang J, Imai D, Snider T, Klug J, Mangalindan R, Morton J, Zhu L, Salmon AB, Wezeman J, Hu J, Menon V, Marka N, Neidernhofer L, Ladiges W. Short term treatment with a cocktail of rapamycin, acarbose and phenylbutyrate delays aging phenotypes in mice. Sci Rep 2022; 12:7300. [PMID: 35508491 PMCID: PMC9067553 DOI: 10.1038/s41598-022-11229-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 04/14/2022] [Indexed: 12/18/2022] Open
Abstract
Pharmaceutical intervention of aging requires targeting multiple pathways, thus there is rationale to test combinations of drugs targeting different but overlapping processes. In order to determine if combining drugs shown to extend lifespan and healthy aging in mice would have greater impact than any individual drug, a cocktail diet containing 14 ppm rapamycin, 1000 ppm acarbose, and 1000 ppm phenylbutyrate was fed to 20-month-old C57BL/6 and HET3 4-way cross mice of both sexes for three months. Mice treated with the cocktail showed a sex and strain-dependent phenotype consistent with healthy aging including decreased body fat, improved cognition, increased strength and endurance, and decreased age-related pathology compared to mice treated with individual drugs or control. The severity of age-related lesions in heart, lungs, liver, and kidney was consistently decreased in mice treated with the cocktail compared to mice treated with individual drugs or control, suggesting an interactive advantage of the three drugs. This study shows that a combination of three drugs, each previously shown to enhance lifespan and health span in mice, is able to delay aging phenotypes in middle-aged mice more effectively than any individual drug in the cocktail over a 3-month treatment period.
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Affiliation(s)
- Zhou Jiang
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Juan Wang
- Biological Sciences Division, Pacific Northwest National Laboratory, Richland, WA, USA
| | - Denise Imai
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Tim Snider
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA
| | - Jenna Klug
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Ruby Mangalindan
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - John Morton
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Lida Zhu
- In Vivo Pharmacology, HD Bioscience Co., Ltd, Shanghai, China
| | - Adam B Salmon
- Department of Molecular Medicine, San Antonio Sam and Ann Barshop Institute for Longevity and Aging Studies, South Texas Veterans Health Care System, Geriatric Research Education and Clinical Center, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Jackson Wezeman
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Jiayi Hu
- Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Saint Paul, MN, USA
| | - Vinal Menon
- Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Saint Paul, MN, USA
| | - Nicholas Marka
- Clinical and Translational Sciences Institute, Biostatistical Design and Analysis Center, University of Minnesota, Minneapolis, MN, USA
| | - Laura Neidernhofer
- Department of Biochemistry, Molecular Biology, and Biophysics, Institute on the Biology of Aging and Metabolism, University of Minnesota, Saint Paul, MN, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA.
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10
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Ladiges W. Geropathology. An inside view of biological aging. AGING PATHOBIOLOGY AND THERAPEUTICS 2022; 4:23-24. [PMID: 35497910 PMCID: PMC9053873 DOI: 10.31491/apt.2022.03.078] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The geropathology concept assumes all age-related lesions are relevant, which allows the ability to grade each lesion in an organ with a severity score resulting in a quantitative value. Because aging pet cats have similar age-related diseases as older humans, knowledge of histopathology occurring during aging would be invaluable to determine how age-related lesions progress with increasing age and the connection with comorbidities. The ability to use the severity of specific organ geropathology to predict biological aging would provide new approaches to study pathways of aging and their role in the development of age-related diseases in animal models.
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Affiliation(s)
- Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA
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11
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Salimi S, Pettan-Brewer C, Ladiges W. PathoClock and PhysioClock in mice recapitulate human multimorbidity and heterogeneous aging. AGING PATHOBIOLOGY AND THERAPEUTICS 2021; 3:107-126. [PMID: 35083456 PMCID: PMC8789194 DOI: 10.31491/apt.2021.12.074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND Multimorbidity is a public health concern and an essential component of aging and healthspan but understudied because investigative tools are lacking that can be translatable to capture similarities and differences of the aging process across species and variability between individuals and individual organs. METHODS To help address this need, body organ disease number (BODN) borrowed from human studies was applied to C57BL/6 (B6) and CB6F1 mouse strains at 8, 16, 24, and 32 months of age, as a measure of systems morbidity based on pathology lesions to develop a mouse PathoClock resembling clinically-based Body Clock in humans, using Bayesian inference. A mouse PhysioClock was also developed based on measures of physiological domains including cardiovascular, neuromuscular, and cognitive function in the same two mouse strains so that alignment with BODN was predictable. RESULTS Between- and within-age variabilities in PathoClock and PhysioClock, as well as between-strain variabilities. Both PathoClock and PhysioClock correlated with chronological age more strongly in CB6F1 than C57BL/6. Prediction models were then developed, designated as PathoAge and PhysioAge, using regression models of pathology and physiology measures on chronological age. PathoAge better predicted chronological age than PhysioAge as the predicted chronological and observed chronological age for PhysioAge were complex rather than linear. CONCLUSION PathoClock and PhathoAge can be used to capture biological changes that predict BODN, a metric developed in humans, and compare multimorbidity across species. These mouse clocks are potential translational tools that could be used in aging intervention studies.
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Affiliation(s)
- Shabnam Salimi
- Department of Epidemiology and Public Health, University of Maryland Baltimore, School of Medicine, Baltimore, MD, USA
| | - Christina Pettan-Brewer
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA
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12
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Van Remmen H, Freeman WM, Miller BF, Kinter M, Wren JD, Chiao A, Towner RA, Snider TA, Sonntag WE, Richardson A. Oklahoma Nathan Shock Aging Center - assessing the basic biology of aging from genetics to protein and function. GeroScience 2021; 43:2183-2203. [PMID: 34606039 PMCID: PMC8599778 DOI: 10.1007/s11357-021-00454-7] [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: 09/02/2021] [Accepted: 09/03/2021] [Indexed: 01/21/2023] Open
Abstract
The Oklahoma Shock Nathan Shock Center is designed to deliver unique, innovative services that are not currently available at most institutions. The focus of the Center is on geroscience and the development of careers of young investigators. Pilot grants are provided through the Research Development Core to junior investigators studying aging/geroscience throughout the USA. However, the services of our Center are available to the entire research community studying aging and geroscience. The Oklahoma Nathan Shock Center provides researchers with unique services through four research cores. The Multiplexing Protein Analysis Core uses the latest mass spectrometry technology to simultaneously measure the levels, synthesis, and turnover of hundreds of proteins associated with pathways of importance to aging, e.g., metabolism, antioxidant defense system, proteostasis, and mitochondria function. The Genomic Sciences Core uses novel next-generation sequencing that allows investigators to study the effect of age, or anti-aging manipulations, on DNA methylation, mitochondrial genome heteroplasmy, and the transcriptome of single cells. The Geroscience Redox Biology Core provides investigators with a comprehensive state-of-the-art assessment of the oxidative stress status of a cell, e.g., measures of oxidative damage and redox couples, which are important in aging as well as many major age-related diseases as well as assays of mitochondrial function. The GeroInformatics Core provides investigators assistance with data analysis, which includes both statistical support as well as analysis of large datasets. The Core also has developed number of unique software packages to help with interpretation of results and discovery of new leads relevant to aging. In addition, the Geropathology Research Resource in the Program Enhancement Core provides investigators with pathological assessments of mice using the recently developed Geropathology Grading Platform.
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Affiliation(s)
- Holly Van Remmen
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA.
- Biochemistry & Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma, City, OK, USA.
| | - Willard M Freeman
- Biochemistry & Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma, City, OK, USA
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Benjamin F Miller
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
- Biochemistry & Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma, City, OK, USA
| | - Michael Kinter
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Jonathan D Wren
- Genes & Human Disease Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Ann Chiao
- Aging & Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Rheal A Towner
- Advanced Magnetic Resonance Center, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Timothy A Snider
- Department of Veterinary Pathology, Center for Veterinary Health Sciences at, Oklahoma State University, Stillwater, OK, USA
| | - William E Sonntag
- Biochemistry & Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma, City, OK, USA
| | - Arlan Richardson
- Biochemistry & Molecular Biology, The University of Oklahoma Health Sciences Center, Oklahoma, City, OK, USA
- Oklahoma City VA Medical Center, Oklahoma City, OK, USA
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13
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Einstein-Nathan Shock Center: translating the hallmarks of aging to extend human health span. GeroScience 2021; 43:2167-2182. [PMID: 34463901 DOI: 10.1007/s11357-021-00428-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 10/20/2022] Open
Abstract
The overarching mission of the Einstein-Nathan Shock Center (E-NSC) is to make scientific discoveries in geroscience, leveraging on the expertise in our center in 6 out of the 7 pillars of aging, and to translate their effects towards drug discovery. The relevance of this basic biology of aging discoveries to humans will be confirmed through the unique gero-human resource at E-NSC. This is achieved through services provided by E-NSC, connectivity among its members, attracting worldwide investigators, and providing them with the opportunities to become future leaders. The two central components of the E-NSC are (a) cutting-edge research programs and (b) unique E-NSC research support cores. E-NSC scientists lead NIH-supported cutting-edge research programs that integrate key hallmarks of aging including proteostasis/autophagy, metabolism/inflammaging, genetic/epigenetics, stem cells/regeneration, and translational aging/longevity. Since the inception of the E-NSC, the well-integrated, collaborative, and innovative nature of the multiple supporting state-of-the-art E-NSC research cores form the bedrock of research success at the E-NSC. The three state-of-the-art E-NSC research cores, (i) Proteostasis of Aging Core (PAC), (ii) the Health Span Core (HSC), and (iii) the Human Multi-Omics Core (HMOC), have allowed impressive expansion of translational biological research programs. Expansion was facilitated through the wealth of data coming from genomics/proteomics and metabolomic analysis on human longevity studies, due to access to a variety of biological samples from elderly subjects in clinical trials with aging-targeting drugs, and new drug design services via the PAC to target the hallmarks of aging.
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14
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The Jackson Laboratory Nathan Shock Center: impact of genetic diversity on aging. GeroScience 2021; 43:2129-2137. [PMID: 34297313 DOI: 10.1007/s11357-021-00421-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Accepted: 07/11/2021] [Indexed: 12/25/2022] Open
Abstract
Healthspan is a complex trait, influenced by many genes and environmental factors that accelerate or delay aging, reduce or increase disease risk, and extend or reduce lifespan. Thus, assessing the role of genetic variation in aging requires an experimental strategy capable of modeling the genetic and biological complexity of human populations. The goal of the The Jackson Laboratory Nathan Shock Center (JAX NSC) is to provide research resources and training for geroscience investigators that seek to understand the role of genetics and genetic diversity on the fundamental process of aging and diseases of human aging using the laboratory mouse as a model system. The JAX NSC has available novel, deeply characterized populations of aged mice, performs state-of-the-art phenotyping of age-relevant traits, provides systems genetics analysis of complex data sets, and provides all of these resources to the geroscience community. The aged animal resources, phenotyping capacity, and genetic expertise available through the JAX NSC benefit the geroscience community by fostering cutting-edge, novel lines of research that otherwise would not be possible. Over the past 15 years, the JAX NSC has transformed aging research across the geroscience community, providing aging mouse resources and tissues to researchers. All JAX NSC data and tools are publicly disseminated on the Mouse Phenome Database and the JAX NSC website, thus ensuring that the resources generated and expertise acquired through the Center are readily available to the aging research community. The JAX NSC will continue to enhance its ability to perform innovative research using a mammalian model to illuminate novel genotype-phenotype relationships and provide a rational basis for designing effective risk assessments and therapeutic interventions to boost longevity and disease-free healthspan.
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15
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Kaeberlein M, Bitto A, Dunham MJ, Ladiges W, Lee SI, MacCoss MJ, Mendenhall A, Promislow DEL, Rabinovitch PS, Villén J, Wang L, Wang Y, Young JE. University of Washington Nathan Shock Center: innovation to advance aging research. GeroScience 2021; 43:2161-2165. [PMID: 34232461 DOI: 10.1007/s11357-021-00413-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 06/29/2021] [Indexed: 10/20/2022] Open
Abstract
The University of Washington Nathan Shock Center of Excellence in the Basic Biology of Aging provides leadership and resources to support the geroscience community locally, nationally, and internationally. Services are provided through our Resource Cores and funds are available annually to support pilot projects by external investigators. Aging-related studies involving proteomics, metabolomics, invertebrate model organisms, and bioinformatics/artificial intelligence are supported by our Cores. The UW Nathan Shock Center also serves as the administrative home for a Geropathology Research Resource. In addition, the Center works in conjunction with the University of Washington Healthy Aging and Longevity Research Institute to organize and support an annual Seminar Series in the Biology of Aging, an annual 1-day Geroscience Symposium, didactic training for the Biological Mechanisms of Healthy Aging Training Program, and other strategic initiatives. Our Center also supports the American Aging Association Annual Meeting, and we have recently partnered with the American Aging Association and the JAX Aging Center to create a set of video lectures on select topics in geroscience as part of the AGE Presents Video Lecture Series.
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Affiliation(s)
- Matt Kaeberlein
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195-7470, USA.
| | - Alessandro Bitto
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195-7470, USA
| | - Maitreya J Dunham
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195-5065, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, 98195-7340, USA
| | - Su-In Lee
- Paul G. Allen School of Computer Science & Engineering, University of Washington, Seattle, WA, 98195-7470, USA
| | - Michael J MacCoss
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195-5065, USA
| | - Alexander Mendenhall
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195-7470, USA
| | - Daniel E L Promislow
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195-7470, USA.,Department of Biology, University of Washington, Seattle, WA, USA
| | - Peter S Rabinovitch
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195-7470, USA
| | - Judit Villén
- Department of Genome Sciences, University of Washington, Seattle, WA, 98195-5065, USA
| | - Lu Wang
- Department of Environmental and Occupational Health Sciences, University of Washington, Seattle, WA, 98105, USA
| | - Yuliang Wang
- Paul G. Allen School of Computer Science & Engineering, University of Washington, Seattle, WA, 98195-7470, USA
| | - Jessica E Young
- Department of Laboratory Medicine and Pathology, University of Washington, Seattle, WA, 98195-7470, USA
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16
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Gupta S, Jiang Z, Ladiges W. The antidiabetic drug acarbose suppresses age-related lesions in C57BL/6 mice in an organ dependent manner. AGING PATHOBIOLOGY AND THERAPEUTICS 2021; 3:41-42. [PMID: 35083454 PMCID: PMC8789153 DOI: 10.31491/apt.2021.06.060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Acarbose (Acb) is an antidiabetic drug used to reduce blood glucose by inhibiting the conversion of complex carbohydrates into simple sugars. It has also shown promise as an anti-aging drug by increasing lifespan in mice but studies have not been reported on the effects of short-term treatment in aging mice. To address this question, 20-month-old C57BL/6 male and female mice were given a standard diet, or a diet supplemented with 1000 ppm Acb for 3 months. After this period, mice were assessed for age-related lesions as readouts for the delay in the progression of aging. Results showed there was a significant decrease in lesions of the heart and kidney in mice treated with Acb suggesting that Acb can suppress cardiac and renal pathology associated with increasing age.
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Affiliation(s)
- Sneh Gupta
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Zhou Jiang
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA 98195, USA
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17
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Klug J, Christensen S, Imai DM, Snider TA, Ladiges W. The geropathology of organ-specific aging. JOURNAL OF TRANSLATIONAL SCIENCE 2021; 7:458. [PMID: 34504718 PMCID: PMC8425292 DOI: 10.15761/jts.1000458] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Aging is a complex multidimensional process of progressive decline affecting multiple organ systems by a number of processes that are still not well understood. While many studies have focused on the approach of studying aging across multiple organs, assessment of the contribution of individual organs to overall aging processes is under appreciated. The ability to study and compare organs in the context of organismal aging has been documented recently using a geropathology grading platform in laboratory mice. This concept consists of identifying and grading age-related histologic lesions within organs to generate a quantitative lesion score for each organ, which is representative of the presence and degree of organ-related pathology, and can be compared to scores from other organs examined. This geropathology approach provides a powerful tool to elucidate the basic mechanisms of aging in multiple organs, as well as the response of organs to therapeutic interventions. Furthermore, ongoing work with the concept has expanded and adapted the geropathology grading system to other preclinical animal model species that are commonly used to understand disease associated phenotypes in aging humans, ultimately adding to the utility of the concept.
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Affiliation(s)
- Jenna Klug
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Sara Christensen
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA
| | - Denise M. Imai
- Department of Pathology, Microbiology and Immunology, School of Veterinary Medicine, University of California, Davis, CA, USA
| | - Timothy A. Snider
- Department of Veterinary Pathobiology, College of Veterinary Medicine, Oklahoma State University, Stillwater, OK, USA
| | - Warren Ladiges
- Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA, USA,Correspondence to: Warren Ladiges, Department of Comparative Medicine, School of Medicine, University of Washington, Seattle, WA Warren Ladiges, USA,
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18
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Ge Z, Carrasco SE, Feng Y, Bakthavatchalu V, Annamalai D, Kramer R, Muthupalani S, Fox JG. Identification of a new strain of mouse kidney parvovirus associated with inclusion body nephropathy in immunocompromised laboratory mice. Emerg Microbes Infect 2020; 9:1814-1823. [PMID: 32686622 PMCID: PMC7473309 DOI: 10.1080/22221751.2020.1798288] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Accepted: 07/14/2020] [Indexed: 12/18/2022]
Abstract
Inclusion body nephropathy (IBN) and kidney fibrosis in aged immunodeficient mice and, to lesser extent, in immunocompetent mice have been recently linked to infection of mouse kidney parvovirus (MKPV), also known as murine chapparvovirus (MuCPV). Knowledge about its prevalence and the complete genome sequence of more MKPV strains is essential for understanding phylogenetic relationships and pathogenicity among MKPV strains. In the present study using PCR and genome walking, we determined the complete 4440-nucleotide genome of a new MKPV strain, namely MIT-WI1, which was identified in IBN-affected Il2rg-/-Rag2-/- c-Kit W-sh/W-sh mice housed in the vivarium at Whitehead Institute for Biomedical Research (WI). The overall nucleotide (>94%) and deduced amino acid sequences (>98%) of p10, p15, NS1 (replicase), NS2 and VP1 (capsid protein) within the MIT-WI1 genome, are closely related to MKPV/MuCPV strains described in laboratory and wild Mus musculus mice. In addition, PCR and qPCR assays using newly designed primers conserved among the known MKPV/MuCPV genomes were developed and utilized to assess MKPV status in selected laboratory mice. MKPV was also detected in immunodeficient (NSG) and immunocompetent (Crl:CD1(ICR), UTXflox) mouse strains/stocks. The abundance of the MKPV genome copies was significantly correlated with the severity of IBN. Our data indicate that MKPV is present in selected mouse strains/stocks, and provides new insights into the genome evolution of MKPV.
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Affiliation(s)
- Zhongming Ge
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Sebastian E. Carrasco
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Yan Feng
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - Damodaran Annamalai
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | - Robin Kramer
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
| | | | - James G. Fox
- Division of Comparative Medicine, Massachusetts Institute of Technology, Cambridge, MA, USA
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19
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Miller RA, Harrison DE, Allison DB, Bogue M, Debarba L, Diaz V, Fernandez E, Galecki A, Garvey WT, Jayarathne H, Kumar N, Javors MA, Ladiges WC, Macchiarini F, Nelson J, Reifsnyder P, Rosenthal NA, Sadagurski M, Salmon AB, Smith DL, Snyder JM, Lombard DB, Strong R. Canagliflozin extends life span in genetically heterogeneous male but not female mice. JCI Insight 2020; 5:140019. [PMID: 32990681 PMCID: PMC7710304 DOI: 10.1172/jci.insight.140019] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 09/23/2020] [Indexed: 12/22/2022] Open
Abstract
Canagliflozin (Cana) is an FDA-approved diabetes drug that protects against cardiovascular and kidney diseases. It also inhibits the sodium glucose transporter 2 by blocking renal reuptake and intestinal absorption of glucose. In the context of the mouse Interventions Testing Program, genetically heterogeneous mice were given chow containing Cana at 180 ppm at 7 months of age until their death. Cana extended median survival of male mice by 14%. Cana also increased by 9% the age for 90th percentile survival, with parallel effects seen at each of 3 test sites. Neither the distribution of inferred cause of death nor incidental pathology findings at end-of-life necropsies were altered by Cana. Moreover, although no life span benefits were seen in female mice, Cana led to lower fasting glucose and improved glucose tolerance in both sexes, diminishing fat mass in females only. Therefore, the life span benefit of Cana is likely to reflect blunting of peak glucose levels, because similar longevity effects are seen in male mice given acarbose, a diabetes drug that blocks glucose surges through a distinct mechanism, i.e., slowing breakdown of carbohydrate in the intestine. Interventions that control daily peak glucose levels deserve attention as possible preventive medicines to protect from a wide range of late-life neoplastic and degenerative diseases. The SGLT2 inhibitor canagliflozin extends median life span of male mice but does not increase life span of female mice.
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Affiliation(s)
- Richard A Miller
- Department of Pathology and Geriatrics Center, University of Michigan, Ann Arbor, Michigan, USA
| | | | - David B Allison
- Department of Epidemiology and Biostatistics, Indiana University School of Public Health, Bloomington, Indiana, USA
| | - Molly Bogue
- The Jackson Laboratory, Bar Harbor, Maine, USA
| | - Lucas Debarba
- Department of Biological Sciences, Integrative Biosciences Center, Wayne State University, Detroit, Michigan, USA
| | - Vivian Diaz
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Departments of Physiology and Molecular Medicine, UT Health San Antonio, San Antonio, Texas, USA; South Texas Veterans Healthcare System, San Antonio, Texas, USA
| | - Elizabeth Fernandez
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Departments of Physiology and Molecular Medicine, UT Health San Antonio, San Antonio, Texas, USA; South Texas Veterans Healthcare System, San Antonio, Texas, USA
| | - Andrzej Galecki
- Departments of Internal Medicine and Biostatistics, University of Michigan School of Medicine and School of Public Health, Ann Arbor, Michigan, USA
| | - W Timothy Garvey
- Department of Nutrition Sciences and Diabetes Research Center, University of Alabama at Birmingham, Birmingham, Alabama, USA; Birmingham VA Medical Center, Birmingham, Alabama, USA
| | - Hashan Jayarathne
- Department of Biological Sciences, Integrative Biosciences Center, Wayne State University, Detroit, Michigan, USA
| | - Navasuja Kumar
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
| | - Martin A Javors
- Department of Psychiatry, University of Texas Health Science Center, San Antonio, Texas, USA
| | - Warren C Ladiges
- Department of Comparative Medicine, University of Washington, Seattle, Washington, USA
| | | | - James Nelson
- Sam and Ann Barshop Institute for Longevity and Aging Research and Department of Cellular and Integrative Physiology, UT Health San Antonio, San Antonio, Texas, USA
| | | | | | - Marianna Sadagurski
- Department of Biological Sciences, Integrative Biosciences Center, Wayne State University, Detroit, Michigan, USA
| | - Adam B Salmon
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Departments of Physiology and Molecular Medicine, UT Health San Antonio, San Antonio, Texas, USA; South Texas Veterans Healthcare System, San Antonio, Texas, USA
| | - Daniel L Smith
- Department of Nutrition Sciences and Nutrition Obesity Research Center, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Jessica M Snyder
- Department of Comparative Medicine, University of Washington, Seattle, Washington, USA
| | - David B Lombard
- Department of Pathology and Geriatrics Center, University of Michigan, Ann Arbor, Michigan, USA
| | - Randy Strong
- Sam and Ann Barshop Institute for Longevity and Aging Studies and Departments of Physiology and Molecular Medicine, UT Health San Antonio, San Antonio, Texas, USA; South Texas Veterans Healthcare System, San Antonio, Texas, USA
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20
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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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