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Langer HT, Ramsamooj S, Dantas E, Murthy A, Ahmed M, Ahmed T, Hwang SK, Grover R, Pozovskiy R, Liang RJ, Queiroz AL, Brown JC, White EP, Janowitz T, Goncalves MD. Restoring adiponectin via rosiglitazone ameliorates tissue wasting in mice with lung cancer. Acta Physiol (Oxf) 2024; 240:e14167. [PMID: 38779820 PMCID: PMC11250533 DOI: 10.1111/apha.14167] [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: 07/20/2023] [Revised: 05/02/2024] [Accepted: 05/07/2024] [Indexed: 05/25/2024]
Abstract
AIM To investigate systemic regulators of the cancer-associated cachexia syndrome (CACS) in a pre-clinical model for lung cancer with the goal to identify therapeutic targets for tissue wasting. METHODS Using the Kras/Lkb1 (KL) mouse model, we found that CACS is associated with white adipose tissue (WAT) dysfunction that directly affects skeletal muscle homeostasis. WAT transcriptomes showed evidence of reduced adipogenesis, and, in agreement, we found low levels of circulating adiponectin. To preserve adipogenesis and restore adiponectin levels, we treated mice with the PPAR-γ agonist, rosiglitazone. RESULTS Rosiglitazone treatment increased serum adiponectin levels, delayed weight loss, and preserved skeletal muscle and adipose tissue mass, as compared to vehicle-treated mice. The preservation of muscle mass with rosiglitazone was associated with increases in AMPK and AKT activity. Similarly, activation of the adiponectin receptors in muscle cells increased AMPK activity, anabolic signaling, and protein synthesis. CONCLUSION Our data suggest that PPAR-γ agonists may be a useful adjuvant therapy to preserve tissue mass in lung cancer.
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Affiliation(s)
- Henning Tim Langer
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Shakti Ramsamooj
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Ezequiel Dantas
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Anirudh Murthy
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Mujmmail Ahmed
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Tanvir Ahmed
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Seo-Kyoung Hwang
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Rahul Grover
- Weill Cornell Medical College, Weill Cornell Medicine, New York, New York, USA
| | - Rita Pozovskiy
- Department of Chemistry, Hunter College, The City University of New York, New York, New York, USA
| | - Roger J Liang
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Andre Lima Queiroz
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
| | - Justin C Brown
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, Louisiana, USA
| | - Eileen P White
- Department of Genetics, Rutgers Cancer Institute of New Jersey, The State University of New Jersey, New Brunswick, New Jersey, USA
| | - Tobias Janowitz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York, USA
| | - Marcus D Goncalves
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, New York, USA
- Meyer Cancer Center, Weill Cornell Medicine, New York, New York, USA
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2
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Langer HT, Taylor SR, Ahmed M, Perrier T, Ahmed T, Goncalves MD. The proteasome regulates body weight and systemic nutrient metabolism during fasting. Am J Physiol Endocrinol Metab 2023; 325:E500-E512. [PMID: 37672249 PMCID: PMC10864006 DOI: 10.1152/ajpendo.00069.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 08/30/2023] [Accepted: 08/30/2023] [Indexed: 09/07/2023]
Abstract
The ubiquitin-proteasome system (UPS) and the autophagy-lysosome pathway are the primary means of degradation in mammalian tissues. We sought to determine the individual contribution of the UPS and autophagy to tissue catabolism during fasting. Mice were overnight fasted for 15 h before regaining food access ("Fed" group, n = 6) or continuing to fast ("Fast" group, n = 7) for 3 h. In addition, to investigate the effects of autophagy on systemic metabolism and tissue degradation, one group of mice was fasted for 18 h and treated with chloroquine ("Fast + CLQ" group, n = 7) and a fourth group of mice was treated with bortezomib ("Fast + Bort" group, n = 7) to assess the contribution of the UPS. Body weight, tissue weight, circulating hormones and metabolites, intracellular signaling pathways, and protein synthesis were investigated. Fasting induced the loss of body weight, liver mass, and white adipose tissue in the Fast and the Fast + CLQ group, whereas the Fast + Bort group maintained tissue and body weight. Fasting reduced glucose and increased β hydroxybutyrate in the circulation of all mice. Both changes were most profound in the Fast + Bort group compared with the other fasting conditions. Molecular signaling indicated a successful inhibition of hepatic UPS with bortezomib and an upregulation of the PI3K/AKT/mTOR pathway. The latter was further supported by an increase in hepatic protein synthesis with bortezomib. Inhibition of the UPS through bortezomib blocks body weight loss and tissue catabolism during an acute overnight fast in mice. The effects were likely mediated through a combined effect of the drug on biomolecule degradation and synthesis.NEW & NOTEWORTHY Bortezomib treatment prevents tissue and body weight loss during fasting. The loss of proteasome activity with bortezomib exacerbates fasting-induced ketogenesis. During fasting, bortezomib increases AMPK and PI3K/AKT signaling in the liver, which promotes protein synthesis.
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Affiliation(s)
- Henning Tim Langer
- Department of Medicine, Weill Cornell Medicine, New York, New York, United States
| | - Samuel R Taylor
- Department of Medicine, Weill Cornell Medicine, New York, New York, United States
| | - Mujmmail Ahmed
- Department of Medicine, Weill Cornell Medicine, New York, New York, United States
| | - Tiffany Perrier
- Department of Medicine, Weill Cornell Medicine, New York, New York, United States
| | - Tanvir Ahmed
- Department of Medicine, Weill Cornell Medicine, New York, New York, United States
| | - Marcus D Goncalves
- Department of Medicine, Weill Cornell Medicine, New York, New York, United States
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Langer HT, Ramsamooj S, Dantas E, Murthy A, Ahmed M, Hwang SK, Grover R, Pozovskiy R, Liang RJ, Queiroz AL, Brown JC, White EP, Janowitz T, Goncalves AMD. Restoring adiponectin via rosiglitazone ameliorates tissue wasting in mice with lung cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.31.551241. [PMID: 37577571 PMCID: PMC10418114 DOI: 10.1101/2023.07.31.551241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
The cancer associated cachexia syndrome (CACS) is a systemic metabolic disorder resulting in loss of body weight due to skeletal muscle and adipose tissues atrophy. CACS is particularly prominent in lung cancer patients, where it contributes to poor quality of life and excess mortality. Using the Kras/Lkb1 (KL) mouse model, we found that CACS is associated with white adipose tissue (WAT) dysfunction that directly affects skeletal muscle homeostasis. WAT transcriptomes showed evidence of reduced adipogenesis, and, in agreement, we found low levels of circulating adiponectin. To preserve adipogenesis and restore adiponectin levels, we treated mice with the PPAR-γ agonist, rosiglitazone. Rosiglitazone treatment increased serum adiponectin levels, delayed weight loss, and preserved skeletal muscle and adipose tissue mass, as compared to vehicle-treated mice. The preservation of muscle mass with rosiglitazone was associated with increases in AMPK and AKT activity. Similarly, activation of the adiponectin receptors in muscle cells increased AMPK activity, anabolic signaling, and protein synthesis. Our data suggest that PPAR-γ agonists may be a useful adjuvant therapy to preserve tissue mass in lung cancer.
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Affiliation(s)
- Henning Tim Langer
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Shakti Ramsamooj
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Ezequiel Dantas
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Anirudh Murthy
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Mujmmail Ahmed
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Seo-Kyoung Hwang
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Rahul Grover
- Weill Cornell Medical College, New York, NY, USA
| | - Rita Pozovskiy
- Hunter College, City University of New York, New York, NY, 10065, USA
| | - Roger J Liang
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Andre Lima Queiroz
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
| | - Justin C Brown
- Pennington Biomedical Research Center, Louisiana State University System, Baton Rouge, LA 70808, USA
| | - Eileen P White
- Department of Genetics, Rutgers Cancer Institute of New Jersey, The State University of New Jersey, New Brunswick, NJ 08901, USA
| | - Tobias Janowitz
- Cold Spring Harbor Laboratory, Cold Spring Harbor, NY 11724, USA
| | - And Marcus D Goncalves
- Division of Endocrinology, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
- Meyer Cancer Center, Weill Department of Medicine, Weill Cornell Medicine, New York, NY, USA
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Meyer GA, Thomopoulos S, Abu-Amer Y, Shen KC. Tenotomy-induced muscle atrophy is sex-specific and independent of NFκB. eLife 2022; 11:e82016. [PMID: 36508247 PMCID: PMC9873255 DOI: 10.7554/elife.82016] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022] Open
Abstract
The nuclear factor-κB (NFκB) pathway is a major thoroughfare for skeletal muscle atrophy and is driven by diverse stimuli. Targeted inhibition of NFκB through its canonical mediator IKKβ effectively mitigates loss of muscle mass across many conditions, from denervation to unloading to cancer. In this study, we used gain- and loss-of-function mouse models to examine the role of NFκB in muscle atrophy following rotator cuff tenotomy - a model of chronic rotator cuff tear. IKKβ was knocked down or constitutively activated in muscle-specific inducible transgenic mice to elicit a twofold gain or loss of NFκB signaling. Surprisingly, neither knockdown of IKKβ nor overexpression of caIKKβ significantly altered the loss of muscle mass following tenotomy. This finding was consistent across measures of morphological adaptation (fiber cross-sectional area, fiber length, fiber number), tissue pathology (fibrosis and fatty infiltration), and intracellular signaling (ubiquitin-proteasome, autophagy). Intriguingly, late-stage tenotomy-induced atrophy was exacerbated in male mice compared with female mice. This sex specificity was driven by ongoing decreases in fiber cross-sectional area, which paralleled the accumulation of large autophagic vesicles in male, but not female muscle. These findings suggest that tenotomy-induced atrophy is not dependent on NFκB and instead may be regulated by autophagy in a sex-specific manner.
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Affiliation(s)
- Gretchen A Meyer
- Program in Physical Therapy, Washington University School of MedicineSt. LouisUnited States
- Department of Orthopaedic Surgery, Washington University School of MedicineSt LouisUnited States
- Departments of Neurology and Biomedical Engineering, Washington University School of MedicineSt. LouisUnited States
| | - Stavros Thomopoulos
- Departments of Orthopaedic Surgery and Biomedical Engineering, Columbia UniversityNew YorkUnited States
| | - Yousef Abu-Amer
- Department of Orthopaedic Surgery, Washington University School of MedicineSt LouisUnited States
- Department of Cell Biology & Physiology, Washington University School of MedicineSt. LouisUnited States
- Shriners Hospital for ChildrenSt. LouisUnited States
| | - Karen C Shen
- Program in Physical Therapy, Washington University School of MedicineSt. LouisUnited States
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5
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Dominant-negative p53-overexpression in skeletal muscle induces cell death and fiber atrophy in rats. Cell Death Dis 2022; 13:716. [PMID: 35977948 PMCID: PMC9385859 DOI: 10.1038/s41419-022-05160-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 01/21/2023]
Abstract
The tumor suppressor p53 is thought to play a key role in the maintenance of cell size and homeostasis, but relatively little is known about its role in skeletal muscle. Based on its ability to suppress cell growth, we hypothesized that inhibiting the function of wild-type p53 through the overexpression of a dominant-negative p53 mutant (DDp53) could result in muscle fiber hypertrophy. To test this hypothesis, we electroporated adult rat tibialis anterior muscles with DDp53 and collected the tissue three weeks later. We confirmed successful overexpression of DDp53 on a histological and biochemical level and found pronounced changes to muscle architecture, metabolism, and molecular signaling. Muscle mass, fiber cross-sectional area, and fiber diameter significantly decreased with DDp53 overexpression. We found histopathological changes in DDp53 transfected muscle which were accompanied by increased levels of proteins that are associated with membrane damage and repair. In addition, DDp53 decreased oxidative phosphorylation complex I and V protein levels, and despite its negative effects on muscle mass and fiber size, caused an increase in muscle protein synthesis as assessed via the SUnSET technique. Interestingly, the increase in muscle protein synthesis was concomitant with a decrease in phospho-S6K1 (Thr389). Furthermore, the muscle wasting in the DDp53 electroporated leg was accompanied by a decrease in global protein ubiquitination and an increase in proteasome activity. In conclusion, overexpression of a dominant-negative p53 mutant in skeletal muscle results in decreased muscle mass, myofiber size, histological muscle damage, a metabolic phenotype, and perturbed homeostasis between muscle protein synthesis and degradation.
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Spörrer M, Kah D, Gerum RC, Reischl B, Huraskin D, Dessalles CA, Schneider W, Goldmann WH, Herrmann H, Thievessen I, Clemen CS, Friedrich O, Hashemolhosseini S, Schröder R, Fabry B. The desmin mutation R349P increases contractility and fragility of stem cell-generated muscle micro-tissues. Neuropathol Appl Neurobiol 2021; 48:e12784. [PMID: 34850968 DOI: 10.1111/nan.12784] [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: 07/27/2021] [Revised: 10/18/2021] [Accepted: 11/16/2021] [Indexed: 12/01/2022]
Abstract
AIMS Desminopathies comprise hereditary myopathies and cardiomyopathies caused by mutations in the intermediate filament protein desmin that lead to severe and often lethal degeneration of striated muscle tissue. Animal and single cell studies hinted that this degeneration process is associated with massive ultrastructural defects correlating with increased susceptibility of the muscle to acute mechanical stress. The underlying mechanism of mechanical susceptibility, and how muscle degeneration develops over time, however, has remained elusive. METHODS Here, we investigated the effect of a desmin mutation on the formation, differentiation, and contractile function of in vitro-engineered three-dimensional micro-tissues grown from muscle stem cells (satellite cells) isolated from heterozygous R349P desmin knock-in mice. RESULTS Micro-tissues grown from desmin-mutated cells exhibited spontaneous unsynchronised contractions, higher contractile forces in response to electrical stimulation, and faster force recovery compared with tissues grown from wild-type cells. Within 1 week of culture, the majority of R349P desmin-mutated tissues disintegrated, whereas wild-type tissues remained intact over at least three weeks. Moreover, under tetanic stimulation lasting less than 5 s, desmin-mutated tissues partially or completely ruptured, whereas wild-type tissues did not display signs of damage. CONCLUSIONS Our results demonstrate that the progressive degeneration of desmin-mutated micro-tissues is closely linked to extracellular matrix fibre breakage associated with increased contractile forces and unevenly distributed tensile stress. This suggests that the age-related degeneration of skeletal and cardiac muscle in patients suffering from desminopathies may be similarly exacerbated by mechanical damage from high-intensity muscle contractions. We conclude that micro-tissues may provide a valuable tool for studying the organization of myocytes and the pathogenic mechanisms of myopathies.
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Affiliation(s)
- Marina Spörrer
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Delf Kah
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Richard C Gerum
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Barbara Reischl
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, FAU, Erlangen, Germany
| | - Danyil Huraskin
- Institute of Biochemistry, Medical Faculty, FAU, Erlangen, Germany
| | - Claire A Dessalles
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany.,LadHyX, CNRS, Ecole Polytechnique, Institut Polytechnique de Paris, Palaiseau, France
| | - Werner Schneider
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany
| | - Wolfgang H Goldmann
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany.,Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany
| | - Harald Herrmann
- Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany.,Institute of Neuropathology, University Hospital Erlangen, FAU, Erlangen, Germany
| | - Ingo Thievessen
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany.,Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany
| | - Christoph S Clemen
- Institute of Aerospace Medicine, German Aerospace Center (DLR), Cologne, Germany.,Center for Physiology and Pathophysiology, Institute of Vegetative Physiology, Medical Faculty, University of Cologne, Cologne, Germany
| | - Oliver Friedrich
- Institute of Medical Biotechnology, Department of Chemical and Biological Engineering, FAU, Erlangen, Germany.,Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany
| | - Said Hashemolhosseini
- Institute of Biochemistry, Medical Faculty, FAU, Erlangen, Germany.,Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany
| | - Rolf Schröder
- Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany.,Institute of Neuropathology, University Hospital Erlangen, FAU, Erlangen, Germany
| | - Ben Fabry
- Biophysics Group, Department of Physics, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany.,Muscle Research Center Erlangen (MURCE), FAU, Erlangen, Germany
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