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Dark C, Ali N, Golenkina S, Dhyani V, Blazev R, Parker BL, Murphy KT, Lynch GS, Senapati T, Millard SS, Judge SM, Judge AR, Giri L, Russell SM, Cheng LY. Mitochondrial fusion and altered beta-oxidation drive muscle wasting in a Drosophila cachexia model. EMBO Rep 2024; 25:1835-1858. [PMID: 38429578 PMCID: PMC11014992 DOI: 10.1038/s44319-024-00102-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Revised: 01/28/2024] [Accepted: 02/08/2024] [Indexed: 03/03/2024] Open
Abstract
Cancer cachexia is a tumour-induced wasting syndrome, characterised by extreme loss of skeletal muscle. Defective mitochondria can contribute to muscle wasting; however, the underlying mechanisms remain unclear. Using a Drosophila larval model of cancer cachexia, we observed enlarged and dysfunctional muscle mitochondria. Morphological changes were accompanied by upregulation of beta-oxidation proteins and depletion of muscle glycogen and lipid stores. Muscle lipid stores were also decreased in Colon-26 adenocarcinoma mouse muscle samples, and expression of the beta-oxidation gene CPT1A was negatively associated with muscle quality in cachectic patients. Mechanistically, mitochondrial defects result from reduced muscle insulin signalling, downstream of tumour-secreted insulin growth factor binding protein (IGFBP) homologue ImpL2. Strikingly, muscle-specific inhibition of Forkhead box O (FOXO), mitochondrial fusion, or beta-oxidation in tumour-bearing animals preserved muscle integrity. Finally, dietary supplementation with nicotinamide or lipids, improved muscle health in tumour-bearing animals. Overall, our work demonstrates that muscle FOXO, mitochondria dynamics/beta-oxidation and lipid utilisation are key regulators of muscle wasting in cancer cachexia.
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Affiliation(s)
- Callum Dark
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Nashia Ali
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Sofya Golenkina
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Vaibhav Dhyani
- Bioimaging and Data Analysis Lab, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
- Optical Science Centre, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Melbourne, VIC, Australia
| | - Ronnie Blazev
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Benjamin L Parker
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Kate T Murphy
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Gordon S Lynch
- Centre for Muscle Research, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia
| | - Tarosi Senapati
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Queensland, QLD, 4072, Australia
| | - S Sean Millard
- School of Biomedical Sciences, Faculty of Medicine, The University of Queensland, Queensland, QLD, 4072, Australia
| | - Sarah M Judge
- Department of Physical Therapy, College of Public Health and Health Professions, University of Florida, Florida, FL, 32603, USA
| | - Andrew R Judge
- Department of Physical Therapy, College of Public Health and Health Professions, University of Florida, Florida, FL, 32603, USA
| | - Lopamudra Giri
- Bioimaging and Data Analysis Lab, Department of Chemical Engineering, Indian Institute of Technology Hyderabad, Sangareddy, Telangana, India
| | - Sarah M Russell
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia
- Optical Science Centre, Faculty of Science, Engineering & Technology, Swinburne University of Technology, Hawthorn, Melbourne, VIC, Australia
- Immune Signalling Laboratory, Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia
| | - Louise Y Cheng
- Peter MacCallum Cancer Centre, Melbourne, VIC, 3000, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
- Department of Anatomy and Physiology, The University of Melbourne, Melbourne, VIC, 3010, Australia.
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Riner AN, Herremans KM, Vudatha V, Han S, Qu X, Liu J, Mukhopadhyay N, Freudenberger DC, George TJ, Judge SM, Judge AR, Hughes SJ, Trevino JG. Heterogeneity of weight loss and transcriptomic signatures in pancreatic ductal adenocarcinoma. J Cachexia Sarcopenia Muscle 2024; 15:149-158. [PMID: 38123146 PMCID: PMC10834348 DOI: 10.1002/jcsm.13390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 09/27/2023] [Accepted: 11/02/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND Pancreatic ductal adenocarcinoma (PDAC) is highly associated with cachexia and weight loss, which is driven by the tumour's effect on the body. Data are lacking on differences in these metrics based on PDAC anatomic location. We hypothesize that the primary tumour's anatomic region influences the prevalence and severity of unintentional weight loss. METHODS Treatment naïve patients with PDAC who underwent pancreatectomy at a single institution between 2012 and 2020 were identified retrospectively. Patients with pancreatic head or distal tumours were matched by sex, age, N and T stage. Serologic and anthropometric variables were obtained at the time of diagnosis. Skeletal muscle index (SMI), muscle radiation attenuation (MRA) and adiposity were measured. The primary outcome was presence of significant weight loss [>5% body weight (BW) loss in past 6 months]. Signed rank tests, Cochran Mantel Haenszel tests and Kaplan-Meier survival analysis are presented. RNA-seq of tumours was performed to explore enriched pathways related to cachexia and weight loss. RESULTS Pancreatic head tumours (n = 24) were associated with higher prevalence (70.8% vs. 41.7%, P = 0.081) and degree of weight loss (7.9% vs. 2.5%, P = 0.014) compared to distal tumours (n = 24). BMI (P = 0.642), SMI (P = 0.738) and MRA (P = 0.478) were similar between groups. Combining BW loss, SMI and MRA into a composite score, patients with pancreatic head cancers met more criteria associated with poor prognosis (P = 0.142). Serum albumin (3.9 vs. 4.4 g/dL, P = 0.002) was lower and bilirubin (4.5 vs. 0.4 mg/dL, P < 0.001) were higher with pancreatic head tumours. Survival differed by tumour location (P = 0.014) with numerically higher median overall survival with distal tumours (11.1 vs. 21.8 months; P = 0.066). Transcriptomic analysis revealed inactivation of appetite stimulation, weight regulation and nutrient digestion/metabolism pathways in pancreatic head tumours. CONCLUSIONS Resectable pancreatic head PDAC is associated with higher prevalence of significant weight loss and more poor prognosis features. Pancreaticobiliary obstruction and hypoalbuminemia in patients with head tumours suggests compounding effects of nutrient malabsorption and systemic inflammation on molecular drivers of cachexia, possibly contributing to shorter survival. Therefore, PDAC-associated cachexia is a heterogenous syndrome, which may be influenced by the primary tumour location. Select patients with resectable pancreatic head tumours may benefit from nutritional rehabilitation to improve outcomes.
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Affiliation(s)
- Andrea N Riner
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Kelly M Herremans
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Vignesh Vudatha
- Department of Surgery, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Song Han
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Xufeng Qu
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Jinze Liu
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Nitai Mukhopadhyay
- Department of Biostatistics, Virginia Commonwealth University, Richmond, Virginia, USA
| | | | - Thomas J George
- Department of Medicine, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida, USA
| | - Steven J Hughes
- Department of Surgery, University of Florida College of Medicine, Gainesville, Florida, USA
| | - Jose G Trevino
- Department of Surgery, Virginia Commonwealth University, Richmond, Virginia, USA
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Ebert SM, Nicolas CS, Schreiber P, Lopez JG, Taylor AT, Judge AR, Judge SM, Rasmussen BB, Talley JJ, Rème CA, Adams CM. Ursolic Acid Induces Beneficial Changes in Skeletal Muscle mRNA Expression and Increases Exercise Participation and Performance in Dogs with Age-Related Muscle Atrophy. Animals (Basel) 2024; 14:186. [PMID: 38254356 PMCID: PMC10812546 DOI: 10.3390/ani14020186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 12/22/2023] [Accepted: 12/30/2023] [Indexed: 01/24/2024] Open
Abstract
Muscle atrophy and weakness are prevalent and debilitating conditions in dogs that cannot be reliably prevented or treated by current approaches. In non-canine species, the natural dietary compound ursolic acid inhibits molecular mechanisms of muscle atrophy, leading to improvements in muscle health. To begin to translate ursolic acid to canine health, we developed a novel ursolic acid dietary supplement for dogs and confirmed its safety and tolerability in dogs. We then conducted a randomized, placebo-controlled, proof-of-concept efficacy study in older beagles with age-related muscle atrophy, also known as sarcopenia. Animals received placebo or ursolic acid dietary supplements once a day for 60 days. To assess the study's primary outcome, we biopsied the quadriceps muscle and quantified atrophy-associated mRNA expression. Additionally, to determine whether the molecular effects of ursolic acid might have functional correlates consistent with improvements in muscle health, we assessed secondary outcomes of exercise participation and T-maze performance. Importantly, in canine skeletal muscle, ursolic acid inhibited numerous mRNA expression changes that are known to promote muscle atrophy and weakness. Furthermore, ursolic acid significantly improved exercise participation and T-maze performance. These findings identify ursolic acid as a natural dietary compound that inhibits molecular mechanisms of muscle atrophy and improves functional performance in dogs.
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Affiliation(s)
- Scott M. Ebert
- Emmyon, Inc., Rochester, MN 55902, USA; (S.M.E.); (A.R.J.); (S.M.J.); (J.J.T.); (C.M.A.)
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Department of Medicine, and Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
| | | | - Paul Schreiber
- Research & Development—Biopharmacy Department, Virbac SA, 06511 Carros, France
| | - Jaime G. Lopez
- US Petcare Innovation, Virbac NA, Westlake, TX 76262, USA
| | - Alan T. Taylor
- Innovation, Business Development, Virbac NA, Westlake, TX 76262, USA
| | - Andrew R. Judge
- Emmyon, Inc., Rochester, MN 55902, USA; (S.M.E.); (A.R.J.); (S.M.J.); (J.J.T.); (C.M.A.)
- Department of Physical Therapy and Myology Institute, University of Florida, Gainesville, FL 32610, USA
| | - Sarah M. Judge
- Emmyon, Inc., Rochester, MN 55902, USA; (S.M.E.); (A.R.J.); (S.M.J.); (J.J.T.); (C.M.A.)
- Department of Physical Therapy and Myology Institute, University of Florida, Gainesville, FL 32610, USA
| | - Blake B. Rasmussen
- Emmyon, Inc., Rochester, MN 55902, USA; (S.M.E.); (A.R.J.); (S.M.J.); (J.J.T.); (C.M.A.)
- Department of Biochemistry and Structural Biology and Center for Metabolic Health, University of Texas Health Science Center, San Antonio, TX 77021, USA
| | - John J. Talley
- Emmyon, Inc., Rochester, MN 55902, USA; (S.M.E.); (A.R.J.); (S.M.J.); (J.J.T.); (C.M.A.)
| | | | - Christopher M. Adams
- Emmyon, Inc., Rochester, MN 55902, USA; (S.M.E.); (A.R.J.); (S.M.J.); (J.J.T.); (C.M.A.)
- Division of Endocrinology, Diabetes, Metabolism, and Nutrition, Department of Medicine, and Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN 55905, USA
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Neyroud D, Laitano O, Dasgupta A, Lopez C, Schmitt RE, Schneider JZ, Hammers DW, Sweeney HL, Walter GA, Doles J, Judge SM, Judge AR. Blocking muscle wasting via deletion of the muscle-specific E3 ligase MuRF1 impedes pancreatic tumor growth. Commun Biol 2023; 6:519. [PMID: 37179425 PMCID: PMC10183033 DOI: 10.1038/s42003-023-04902-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Accepted: 05/02/2023] [Indexed: 05/15/2023] Open
Abstract
Cancer-induced muscle wasting reduces quality of life, complicates or precludes cancer treatments, and predicts early mortality. Herein, we investigate the requirement of the muscle-specific E3 ubiquitin ligase, MuRF1, for muscle wasting induced by pancreatic cancer. Murine pancreatic cancer (KPC) cells, or saline, were injected into the pancreas of WT and MuRF1-/- mice, and tissues analyzed throughout tumor progression. KPC tumors induces progressive wasting of skeletal muscle and systemic metabolic reprogramming in WT mice, but not MuRF1-/- mice. KPC tumors from MuRF1-/- mice also grow slower, and show an accumulation of metabolites normally depleted by rapidly growing tumors. Mechanistically, MuRF1 is necessary for the KPC-induced increases in cytoskeletal and muscle contractile protein ubiquitination, and the depression of proteins that support protein synthesis. Together, these data demonstrate that MuRF1 is required for KPC-induced skeletal muscle wasting, whose deletion reprograms the systemic and tumor metabolome and delays tumor growth.
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Affiliation(s)
- Daria Neyroud
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
- Myology Institute, University of Florida, Gainesville, FL, USA
- Institute of Sports Sciences, University of Lausanne, Lausanne, Switzerland
| | - Orlando Laitano
- Myology Institute, University of Florida, Gainesville, FL, USA
- Department of Applied Physiology & Kinesiology, University of Florida, Gainesville, FL, USA
| | - Aneesha Dasgupta
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Christopher Lopez
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
- Myology Institute, University of Florida, Gainesville, FL, USA
| | - Rebecca E Schmitt
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Jessica Z Schneider
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - David W Hammers
- Myology Institute, University of Florida, Gainesville, FL, USA
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
| | - H Lee Sweeney
- Myology Institute, University of Florida, Gainesville, FL, USA
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, FL, USA
| | - Glenn A Walter
- Myology Institute, University of Florida, Gainesville, FL, USA
- Department of Physiology and Aging, University of Florida, Gainesville, FL, USA
| | - Jason Doles
- Department of Anatomy, Cell Biology and Physiology, Indiana University School of Medicine, Indianapolis, IN, USA
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, MN, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
- Myology Institute, University of Florida, Gainesville, FL, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA.
- Myology Institute, University of Florida, Gainesville, FL, USA.
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Cameron ME, Ayzengart AL, Oduntan O, Judge SM, Judge AR, Awad ZT. Low Muscle Mass and Radiodensity Associate with Impaired Pulmonary Function and Respiratory Complications in Patients with Esophageal Cancer. J Am Coll Surg 2023; 236:677-684. [PMID: 36728466 PMCID: PMC10023327 DOI: 10.1097/xcs.0000000000000535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Sixty percent of patients with esophageal cancer display signs of cachexia at diagnosis. Changes in body composition are common, and muscle mass and quality are measurable through imaging studies. Cachexia leads to functional impairments that complicate treatments, including surgery. We hypothesize that low muscle mass and quality associate with pulmonary function testing parameters, highlighting ventilatory deficits, and postoperative complications in patients receiving esophagectomy. STUDY DESIGN We performed a retrospective review of patients receiving esophagectomy between 2012 and 2021 at our facility. PET/CT scans were used to quantify skeletal muscle at the L3 and T4 levels. Patient characteristics were recorded, including pulmonary function testing parameters. Regression models were created to characterize predictive associations. RESULTS One hundred eight patients were identified. All were included in the final analysis. In linear regression adjusted for sex, age, and COPD status, low L3 muscle mass independently associated with low forced vital capacity (p < 0.005, β 0.354) and forced expiratory volume in 1 second (p < 0.001, β 0.392). Similarly, T4 muscle mass independently predicted forced vital capacity (p < 0.005, β 0.524) and forced expiratory volume in 1 second (p < 0.01, β 0.480). L3 muscle quality correlated with total lung capacity ( R 0.2463, p < 0.05). Twenty-six patients had pleural effusions postoperatively, associated with low muscle quality on L3 images (p < 0.05). Similarly, patients with hospitalization more than 2 weeks presented with lower muscle quality (p < 0.005). CONCLUSIONS Cachexia and low muscle mass are common. Reduced muscle mass and quality independently associate with impaired forced vital capacity, forced expiratory volume in 1 second, and total lung capacity. We propose that respiratory muscle atrophy occurs with weight loss. Body composition analyses may aid in stratifying patients. Pulmonary function testing may also serve as a functional endpoint for clinical trials. These findings highlight the need to study mechanisms that lead to respiratory muscle pathology and dysfunction in tumor-bearing hosts.
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Affiliation(s)
- Miles E Cameron
- Department of Physical Therapy, University of Florida, Gainesville, FL
- MD-PhD Training Program, University of Florida, Gainesville, FL
| | - Alexander L Ayzengart
- Department of Surgery, University of Nevada, Reno, NV
- Nevada Surgical Associates, Reno, NV
| | - Olusola Oduntan
- Department of Surgery, University of Florida, Gainesville, FL
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL
| | - Ziad T Awad
- Department of Surgery, University of Florida, Jacksonville, FL
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Neyroud D, Laitano O, Daguspta A, Lopez C, Schmitt RE, Schneider JZ, Hammers DW, Sweeney HL, Walter GA, Doles J, Judge SM, Judge AR. Blocking muscle wasting via deletion of the muscle-specific E3 ubiquitin ligase MuRF1 impedes pancreatic tumor growth. Res Sq 2023:rs.3.rs-2524562. [PMID: 36798266 PMCID: PMC9934780 DOI: 10.21203/rs.3.rs-2524562/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Cancer-induced muscle wasting reduces quality of life, complicates or precludes cancer treatments, and predicts early mortality. Herein, we investigated the requirement of the muscle-specific E3 ubiquitin ligase, MuRF1, for muscle wasting induced by pancreatic cancer. Murine pancreatic cancer (KPC) cells, or saline, were injected into the pancreas of WT and MuRF1-/- mice, and tissues analyzed throughout tumor progression. KPC tumors induced progressive wasting of skeletal muscle and systemic metabolic reprogramming in WT mice, but not MuRF1-/- mice. KPC tumors from MuRF1-/- mice also grew slower, and showed an accumulation of metabolites normally depleted by rapidly growing tumors. Mechanistically, MuRF1 was necessary for the KPC-induced increases in cytoskeletal and muscle contractile protein ubiquitination, and the depression of proteins that support protein synthesis. Together, these data demonstrate that MuRF1 is required for KPC-induced skeletal muscle wasting, whose deletion reprograms the systemic and tumor metabolome and delays tumor growth.
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Affiliation(s)
- Daria Neyroud
- Department of Physical Therapy, University of Florida, Gainesville, USA
- Myology Institute, University of Florida, Gainesville, USA
- Institute of Sports Sciences, University of Lausanne, Lausanne, Switzerland
| | - Orlando Laitano
- Myology Institute, University of Florida, Gainesville, USA
- Department of Applied Physiology & Kinesiology, University of Florida, Gainesville, USA
| | - Aneesha Daguspta
- Department of Anatomy, Cell Biology and Physiology, Indiana university school of medicine, Indianapolis, Indiana
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Christopher Lopez
- Department of Physical Therapy, University of Florida, Gainesville, USA
- Myology Institute, University of Florida, Gainesville, USA
| | - Rebecca E. Schmitt
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Jessica Z. Schneider
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - David W. Hammers
- Myology Institute, University of Florida, Gainesville, USA
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, USA
| | - H. Lee Sweeney
- Myology Institute, University of Florida, Gainesville, USA
- Department of Pharmacology and Therapeutics, University of Florida, Gainesville, USA
| | - Glenn A Walter
- Myology Institute, University of Florida, Gainesville, USA
- Department of Physiology and Aging, University of Florida, Gainesville, USA
| | - Jason Doles
- Department of Anatomy, Cell Biology and Physiology, Indiana university school of medicine, Indianapolis, Indiana
- Department of Biochemistry and Molecular Biology, Mayo Clinic, Rochester, Minnesota
| | - Sarah M. Judge
- Department of Physical Therapy, University of Florida, Gainesville, USA
- Myology Institute, University of Florida, Gainesville, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida, Gainesville, USA
- Myology Institute, University of Florida, Gainesville, USA
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D'Lugos AC, Lamm JH, Callaway CS, Judge SM, Judge AR, Neyroud D. Voluntary Physical Activity Prevents Pancreatic Cancer Cachexia, Immobility, And Dysfunction. Med Sci Sports Exerc 2022. [DOI: 10.1249/01.mss.0000879844.02955.e1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Deyhle MR, Callaway CS, Neyroud D, D’Lugos AC, Judge SM, Judge AR. Depleting Ly6G Positive Myeloid Cells Reduces Pancreatic Cancer-Induced Skeletal Muscle Atrophy. Cells 2022; 11:1893. [PMID: 35741022 PMCID: PMC9221479 DOI: 10.3390/cells11121893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 06/02/2022] [Accepted: 06/08/2022] [Indexed: 12/22/2022] Open
Abstract
Immune cells can mount desirable anti-cancer immunity. However, some immune cells can support cancer disease progression. The presence of cancer can lead to production of immature myeloid cells from the bone marrow known as myeloid-derived suppressor cells (MDSCs). The immunosuppressive and pro-tumorigenic effects of MDSCs are well understood. Whether MDSCs are involved in promoting cancer cachexia is not well understood. We orthotopically injected the pancreas of mice with KPC cells or PBS. One group of tumor-bearing mice was treated with an anti-Ly6G antibody that depletes granulocytic MDSCs and neutrophils; the other received a control antibody. Anti-Ly6G treatment delayed body mass loss, reduced tibialis anterior (TA) muscle wasting, abolished TA muscle fiber atrophy, reduced diaphragm muscle fiber atrophy of type IIb and IIx fibers, and reduced atrophic gene expression in the TA muscles. Anti-ly6G treatment resulted in greater than 50% Ly6G+ cell depletion efficiency in the tumors and TA muscles. These data show that, in the orthotopic KPC model, anti-Ly6G treatment reduces the number of Ly6G+ cells in the tumor and skeletal muscle and reduces skeletal muscle atrophy. These data implicate Ly6G+ cells, including granulocytic MDSCs and neutrophils, as possible contributors to the development of pancreatic cancer-induced skeletal muscle wasting.
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Affiliation(s)
- Michael R. Deyhle
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (M.R.D.); (C.S.C.); (D.N.); (A.C.D.); (S.M.J.)
- Department of Health, Exercise & Sports Sciences, University of New Mexico, Albuquerque, NM 87131, USA
| | - Chandler S. Callaway
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (M.R.D.); (C.S.C.); (D.N.); (A.C.D.); (S.M.J.)
| | - Daria Neyroud
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (M.R.D.); (C.S.C.); (D.N.); (A.C.D.); (S.M.J.)
- Faculty of Biology and Medicine, Institute of Sport Sciences, University of Lausanne, Quartier UNIL-Centre, Building Synathlon, 1015 Lausanne, Switzerland
| | - Andrew C. D’Lugos
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (M.R.D.); (C.S.C.); (D.N.); (A.C.D.); (S.M.J.)
| | - Sarah M. Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (M.R.D.); (C.S.C.); (D.N.); (A.C.D.); (S.M.J.)
| | - Andrew R. Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (M.R.D.); (C.S.C.); (D.N.); (A.C.D.); (S.M.J.)
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Ebert SM, Rasmussen BB, Judge AR, Judge SM, Larsson L, Wek RC, Anthony TG, Marcotte GR, Miller MJ, Yorek MA, Vella A, Volpi E, Stern JI, Strub MD, Ryan Z, Talley JJ, Adams CM. Biology of Activating Transcription Factor 4 (ATF4) and Its Role in Skeletal Muscle Atrophy. J Nutr 2022; 152:926-938. [PMID: 34958390 PMCID: PMC8970988 DOI: 10.1093/jn/nxab440] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 12/17/2021] [Accepted: 12/23/2021] [Indexed: 12/30/2022] Open
Abstract
Activating transcription factor 4 (ATF4) is a multifunctional transcription regulatory protein in the basic leucine zipper superfamily. ATF4 can be expressed in most if not all mammalian cell types, and it can participate in a variety of cellular responses to specific environmental stresses, intracellular derangements, or growth factors. Because ATF4 is involved in a wide range of biological processes, its roles in human health and disease are not yet fully understood. Much of our current knowledge about ATF4 comes from investigations in cultured cell models, where ATF4 was originally characterized and where further investigations continue to provide new insights. ATF4 is also an increasingly prominent topic of in vivo investigations in fully differentiated mammalian cell types, where our current understanding of ATF4 is less complete. Here, we review some important high-level concepts and questions concerning the basic biology of ATF4. We then discuss current knowledge and emerging questions about the in vivo role of ATF4 in one fully differentiated cell type, mammalian skeletal muscle fibers.
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Affiliation(s)
- Scott M Ebert
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Emmyon, Inc., Rochester, MN, USA
| | - Blake B Rasmussen
- Emmyon, Inc., Rochester, MN, USA
- Department of Nutrition, Metabolism and Rehabilitation Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | - Andrew R Judge
- Emmyon, Inc., Rochester, MN, USA
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Lars Larsson
- Department of Physiology and Pharmacology, Karolinska, Stockholm, Sweden
| | - Ronald C Wek
- Department of Biochemistry and Molecular Biology, Indiana University, Indianapolis, IN, USA
| | - Tracy G Anthony
- Department of Nutritional Sciences, Rutgers University, New Brunswick, NJ, USA
| | - George R Marcotte
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Matthew J Miller
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
| | - Mark A Yorek
- Department of Internal Medicine, University of Iowa, Iowa City, IA, USA
- Department of Internal Medicine, Iowa City VA Medical Center, Iowa City, IA, USA
| | - Adrian Vella
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Emmyon, Inc., Rochester, MN, USA
| | - Elena Volpi
- Department of Nutrition, Metabolism and Rehabilitation Sciences, University of Texas Medical Branch, Galveston, TX, USA
| | - Jennifer I Stern
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Matthew D Strub
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | - Zachary Ryan
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
| | | | - Christopher M Adams
- Department of Internal Medicine, Division of Endocrinology, Diabetes, Metabolism and Nutrition, Mayo Clinic, Rochester, MN, USA
- Emmyon, Inc., Rochester, MN, USA
- Department of Internal Medicine, Iowa City VA Medical Center, Iowa City, IA, USA
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10
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Cameron ME, Underwood PW, Williams IE, George TJ, Judge SM, Yarrow JF, Trevino JG, Judge AR. Osteopenia is associated with wasting in pancreatic adenocarcinoma and predicts survival after surgery. Cancer Med 2021; 11:50-60. [PMID: 34791809 PMCID: PMC8704155 DOI: 10.1002/cam4.4416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Revised: 10/14/2021] [Accepted: 10/28/2021] [Indexed: 11/11/2022] Open
Abstract
Pancreatic ductal adenocarcinoma (PDAC) is among the deadliest of all common malignancies. Treatment is difficult and often complicated by the presence of cachexia. The clinical portrait of cachexia contributes to the poor prognosis experienced by PDAC patients and worsens therapeutic outcomes. We propose that low bone mineral density is a component of cachexia, which we explore herein through a retrospective review of all patients at our facility that underwent surgery for PDAC between 2011 and 2018 and compared to sex-, age- and comorbidity-matched control individuals. Data were abstracted from the medical record and pre-operative computed tomography scans. Muscle mass and quality were measured at the L3 level and bone mineral density was measured as the radiation attenuation of the lumbar vertebral bodies. Patients with PDAC displayed typical signs of cachexia such as weight loss and radiologically appreciable deterioration of skeletal muscle. Critically, PDAC patients had significantly lower bone mineral density than controls, with 61.2% of PDAC patients categorized as osteopenic compared to 36.8% of controls. PDAC patients classified as osteopenic had significantly reduced survival (1.01 years) compared to patients without osteopenia (2.77 years). The presence of osteopenia was the strongest clinical predictor of 1- and 2-year disease-specific mortality, increasing the risk of death by 107% and 80%, respectively. Osteopenia serves as a test of 2-year mortality with sensitivity of 76% and specificity of 58%. These data therefore identify impaired bone mineral density as a key component of cachexia and predictor of postoperative survival in patients with PDAC. The mechanisms that lead to bone wasting in tumor-bearing hosts deserve further study.
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Affiliation(s)
- Miles E Cameron
- Department of Physical Therapy, University of Florida, Gainesville, Florida, USA.,Department of Surgery, University of Florida, Gainesville, Florida, USA.,MD-PhD Training Program, University of Florida, Gainesville, Florida, USA
| | | | | | - Thomas J George
- Department of Medicine, University of Florida, Gainesville, Florida, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
| | - Joshua F Yarrow
- Malcolm Randall VA Medical Center, Gainesville, Florida, USA
| | - Jose G Trevino
- Department of Surgery, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida, Gainesville, Florida, USA
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11
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Neyroud D, Nosacka RL, Callaway CS, Trevino JG, Hu H, Judge SM, Judge AR. FoxP1 is a transcriptional repressor associated with cancer cachexia that induces skeletal muscle wasting and weakness. J Cachexia Sarcopenia Muscle 2021; 12:421-442. [PMID: 33527776 PMCID: PMC8061399 DOI: 10.1002/jcsm.12666] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 12/05/2020] [Accepted: 12/16/2020] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Skeletal muscle wasting is a devastating consequence of cancer that affects up to 80% of cancer patients and associates with reduced survival. Herein, we investigated the biological significance of Forkhead box P1 (FoxP1), a transcriptional repressor that we demonstrate is up-regulated in skeletal muscle in multiple models of cancer cachexia and in cachectic cancer patients. METHODS Inducible, skeletal muscle-specific FoxP1 over-expressing (FoxP1iSkmTg/Tg ) mice were generated through crossing conditional Foxp1a transgenic mice with HSA-MCM mice that express tamoxifen-inducible Cre recombinase under control of the skeletal muscle actin promoter. To determine the requirement of FoxP1 for cancer-induced skeletal muscle wasting, FoxP1-shRNA was packaged and targeted to muscles using AAV9 delivery prior to inoculation of mice with Colon-26 Adenocarcinoma (C26) cells. RESULTS Up-regulation of FoxP1 in adult skeletal muscle was sufficient to induce features of cachexia, including 15% reduction in body mass (P < 0.05), and a 16-27% reduction in skeletal muscle mass (P < 0.05) that was characterized by a 20% reduction in muscle fibre cross-sectional area of type IIX/B muscle fibres (P = 0.020). Skeletal muscles from FoxP1iSkmTg/Tg mice also showed significant damage and myopathy characterized by the presence of centrally nucleated myofibres, extracellular matrix expansion, and were 19-26% weaker than controls (P < 0.05). Transcriptomic analysis revealed FoxP1 as a potent transcriptional repressor of skeletal muscle gene expression, with enrichment of pathways related to skeletal muscle structure and function, growth signalling, and cell quality control. Because FoxP1 functions, at least in part, as a transcriptional repressor through its interaction with histone deacetylase proteins, we treated FoxP1iSkmTg/Tg mice with Trichostatin A, and found that this completely prevented the loss of muscle mass (p = 0.007) and fibre atrophy (P < 0.001) in the tibialis anterior. In the context of cancer, FoxP1 knockdown blocked the cancer-induced repression of myocyte enhancer factor 2 (MEF2)-target genes critical to muscle differentiation and repair, improved muscle ultrastructure, and attenuated muscle fibre atrophy by 50% (P < 0.05). CONCLUSIONS In summary, we identify FoxP1 as a novel repressor of skeletal muscle gene expression that is increased in cancer cachexia, whose up-regulation is sufficient to induce skeletal muscle wasting and weakness, and required for the normal wasting response to cancer.
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Affiliation(s)
- Daria Neyroud
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Rachel L Nosacka
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | | | - Jose G Trevino
- Department of Surgery, University of Florida, Gainesville, FL, USA
| | - Hui Hu
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, USA
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12
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Permuth JB, Dezsi KB, Vyas S, Ali KN, Basinski TL, Utuama OA, Denbo JW, Klapman J, Dam A, Carballido E, Kim DW, Pimiento JM, Powers BD, Otto AK, Choi JW, Chen DT, Teer JK, Beato F, Ward A, Cortizas EM, Whisner SY, Williams IE, Riner AN, Tardif K, Velanovich V, Karachristos A, Douglas WG, Legaspi A, Allan BJ, Meredith K, Molina-Vega MA, Bao P, St. Julien J, Huguet KL, Green L, Odedina FT, Kumar NB, Simmons VN, George TJ, Vadaparampil ST, Hodul PJ, Arnoletti JP, Awad ZT, Bose D, Jiang K, Centeno BA, Gwede CK, Malafa M, Judge SM, Judge AR, Jeong D, Bloomston M, Merchant NB, Fleming JB, Trevino JG. The Florida Pancreas Collaborative Next-Generation Biobank: Infrastructure to Reduce Disparities and Improve Survival for a Diverse Cohort of Patients with Pancreatic Cancer. Cancers (Basel) 2021; 13:809. [PMID: 33671939 PMCID: PMC7919015 DOI: 10.3390/cancers13040809] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 12/15/2022] Open
Abstract
Background: Well-annotated, high-quality biorepositories provide a valuable platform to support translational research. However, most biorepositories have poor representation of minority groups, limiting the ability to address health disparities. Methods: We describe the establishment of the Florida Pancreas Collaborative (FPC), the first state-wide prospective cohort study and biorepository designed to address the higher burden of pancreatic cancer (PaCa) in African Americans (AA) compared to Non-Hispanic Whites (NHW) and Hispanic/Latinx (H/L). We provide an overview of stakeholders; study eligibility and design; recruitment strategies; standard operating procedures to collect, process, store, and transfer biospecimens, medical images, and data; our cloud-based data management platform; and progress regarding recruitment and biobanking. Results: The FPC consists of multidisciplinary teams from fifteen Florida medical institutions. From March 2019 through August 2020, 350 patients were assessed for eligibility, 323 met inclusion/exclusion criteria, and 305 (94%) enrolled, including 228 NHW, 30 AA, and 47 H/L, with 94%, 100%, and 94% participation rates, respectively. A high percentage of participants have donated blood (87%), pancreatic tumor tissue (41%), computed tomography scans (76%), and questionnaires (62%). Conclusions: This biorepository addresses a critical gap in PaCa research and has potential to advance translational studies intended to minimize disparities and reduce PaCa-related morbidity and mortality.
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Affiliation(s)
- Jennifer B. Permuth
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Kaleena B. Dezsi
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
| | - Shraddha Vyas
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
| | - Karla N. Ali
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
| | - Toni L. Basinski
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
| | - Ovie A. Utuama
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
| | - Jason W. Denbo
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Jason Klapman
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Aamir Dam
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Estrella Carballido
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Dae Won Kim
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Jose M. Pimiento
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Benjamin D. Powers
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Amy K. Otto
- Department of Public Health Sciences, University of Miami Miller School of Medicine, Miami, FL 33612, USA;
| | - Jung W. Choi
- Department of Diagnostic Imaging and Interventional Radiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.C.); (D.J.)
| | - Dung-Tsa Chen
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (D.-T.C.); (J.K.T.)
| | - Jamie K. Teer
- Department of Biostatistics and Bioinformatics, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (D.-T.C.); (J.K.T.)
| | - Francisca Beato
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Alina Ward
- Lee Health Regional Cancer Center, Fort Myers, FL 33905, USA; (A.W.); (B.J.A.); (M.B.)
| | - Elena M. Cortizas
- Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | | | - Iverson E. Williams
- College of Medicine, University of Florida, Gainesville, FL 32610, USA; (I.E.W.); (A.N.R.); (J.G.T.)
| | - Andrea N. Riner
- College of Medicine, University of Florida, Gainesville, FL 32610, USA; (I.E.W.); (A.N.R.); (J.G.T.)
| | - Kenneth Tardif
- Department of Surgery, St. Anthony’s Hospital, St. Petersburg, FL 33705, USA; (K.T.); (J.S.J.); (K.L.H.)
| | - Vic Velanovich
- Tampa General Hospital, University of South Florida, Tampa, FL 33606, USA; (V.V.); (A.K.)
| | - Andreas Karachristos
- Tampa General Hospital, University of South Florida, Tampa, FL 33606, USA; (V.V.); (A.K.)
| | - Wade G. Douglas
- Division of Surgery, Tallahassee Memorial Healthcare, Department of Clinical Sciences, College of Medicine, Florida State University, Tallahassee, FL 32308, USA;
| | - Adrian Legaspi
- Center for Advanced Surgical Oncology at Palmetto General Hospital, Tenet Healthcare Palmetto General, Hialeah, FL 33016, USA;
| | - Bassan J. Allan
- Lee Health Regional Cancer Center, Fort Myers, FL 33905, USA; (A.W.); (B.J.A.); (M.B.)
| | - Kenneth Meredith
- Department of Gastrointestinal Oncology, Brian Jellison Cancer Institute, Sarasota Memorial Hospital, Sarasota, FL 34239, USA;
| | | | - Philip Bao
- Department of Surgical Oncology, Mount Sinai Medical Center, Miami Beach, FL 33140, USA;
| | - Jamii St. Julien
- Department of Surgery, St. Anthony’s Hospital, St. Petersburg, FL 33705, USA; (K.T.); (J.S.J.); (K.L.H.)
| | - Kevin L. Huguet
- Department of Surgery, St. Anthony’s Hospital, St. Petersburg, FL 33705, USA; (K.T.); (J.S.J.); (K.L.H.)
| | - Lee Green
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (L.G.); (V.N.S.); (S.T.V.); (C.K.G.)
| | - Folakemi T. Odedina
- Department of Pharmacotherapy and Translational Research, University of Florida, Gainesville, FL 32610, USA;
| | - Nagi B. Kumar
- Department of Cancer Epidemiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.B.D.); (S.V.); (K.N.A.); (T.L.B.); (O.A.U.); (N.B.K.)
| | - Vani N. Simmons
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (L.G.); (V.N.S.); (S.T.V.); (C.K.G.)
| | - Thomas J. George
- Division of Oncology, Department of Medicine, University of Florida, Gainesville, FL 32610, USA;
| | - Susan T. Vadaparampil
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (L.G.); (V.N.S.); (S.T.V.); (C.K.G.)
- Office of Community Outreach, Engagement, and Equity, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA
| | - Pamela J. Hodul
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - J. Pablo Arnoletti
- Center for Surgical Oncology, Advent Health Orlando, Orlando, FL 32804, USA;
| | - Ziad T. Awad
- Surgery, University of Florida-Jacksonville, Jacksonville, FL 32209, USA;
| | - Debashish Bose
- Surgical Oncology, University of Florida-Orlando, Orlando, FL 32806, USA;
| | - Kun Jiang
- Department of Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.J.); (B.A.C.)
| | - Barbara A. Centeno
- Department of Pathology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (K.J.); (B.A.C.)
| | - Clement K. Gwede
- Department of Health Outcomes and Behavior, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (L.G.); (V.N.S.); (S.T.V.); (C.K.G.)
| | - Mokenge Malafa
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Sarah M. Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (S.M.J.); (A.R.J.)
| | - Andrew R. Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL 32610, USA; (S.M.J.); (A.R.J.)
| | - Daniel Jeong
- Department of Diagnostic Imaging and Interventional Radiology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.C.); (D.J.)
| | - Mark Bloomston
- Lee Health Regional Cancer Center, Fort Myers, FL 33905, USA; (A.W.); (B.J.A.); (M.B.)
| | - Nipun B. Merchant
- Department of Surgical Oncology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA;
| | - Jason B. Fleming
- Department of Gastrointestinal Oncology, H. Lee Moffitt Cancer Center & Research Institute, Tampa, FL 33612, USA; (J.W.D.); (J.K.); (A.D.); (E.C.); (D.W.K.); (J.M.P.); (B.D.P.); (F.B.); (P.J.H.); (M.M.); (J.B.F.)
| | - Jose G. Trevino
- College of Medicine, University of Florida, Gainesville, FL 32610, USA; (I.E.W.); (A.N.R.); (J.G.T.)
- Division of Surgical Oncology, Department of Surgery, School of Medicine, Virginia Commonwealth University, Richmond, VA 23219, USA
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13
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Carroll RJ, Podolyák Z, Berry T, Grawe H, Alexander T, Andreyev AN, Ansari S, Borge MJG, Brunet M, Creswell JR, Fraile LM, Fahlander C, Fynbo HOU, Gamba ER, Gelletly W, Gerst RB, Górska M, Gredley A, Greenlees PT, Harkness-Brennan LJ, Huyse M, Judge SM, Judson DS, Konki J, Kurcewicz J, Kuti I, Lalkovski S, Lazarus IH, Lică R, Lund M, Madurga M, Marginean N, Marginean R, Marroquin I, Mihai C, Mihai RE, Nácher E, Negret A, Nita C, Pascu S, Page RD, Patel Z, Perea A, Phrompao J, Piersa M, Pucknell V, Rahkila P, Rapisarda E, Regan PH, Rotaru F, Rudigier M, Shand CM, Shearman R, Stegemann S, Stora T, Sotty C, Tengblad O, Van Duppen P, Vedia V, Wadsworth R, Walker PM, Warr N, Wearing F, De Witte H. Competition between Allowed and First-Forbidden β Decay: The Case of ^{208}Hg→^{208}Tl. Phys Rev Lett 2020; 125:192501. [PMID: 33216605 DOI: 10.1103/physrevlett.125.192501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 09/21/2020] [Accepted: 10/07/2020] [Indexed: 06/11/2023]
Abstract
The β decay of ^{208}Hg into the one-proton hole, one neutron-particle _{81}^{208}Tl_{127} nucleus was investigated at CERN-ISOLDE. Shell-model calculations describe well the level scheme deduced, validating the proton-neutron interactions used, with implications for the whole of the N>126, Z<82 quadrant of neutron-rich nuclei. While both negative and positive parity states with spin 0 and 1 are expected within the Q_{β} window, only three negative parity states are populated directly in the β decay. The data provide a unique test of the competition between allowed Gamow-Teller and Fermi, and first-forbidden β decays, essential for the understanding of the nucleosynthesis of heavy nuclei in the rapid neutron capture process. Furthermore, the observation of the parity changing 0^{+}→0^{-}β decay where the daughter state is core excited is unique, and can provide information on mesonic corrections of effective operators.
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Affiliation(s)
- R J Carroll
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - Zs Podolyák
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- ExtreMe Matter Institute EMMI, GSI Helmholtzzentrum für Schwerionenforschung, Planckstrasse 1, 64291 Darmstadt, Germany
| | - T Berry
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - H Grawe
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - T Alexander
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A N Andreyev
- University of York, Dept Phys, North Yorkshire YO10 5DD, United Kingdom
- Advanced Science Research Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki 319-1195, Japan
| | - S Ansari
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - M J G Borge
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - M Brunet
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - J R Creswell
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - L M Fraile
- Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid, Spain
| | - C Fahlander
- Department of Physics, Lund University, S-22100 Lund, Sweden
| | - H O U Fynbo
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, Denmark
| | - E R Gamba
- University of Brighton, Brighton BN2 4GJ, United Kingdom
| | - W Gelletly
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - R-B Gerst
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - M Górska
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, Planckstrasse 1, 64291 Darmstadt, Germany
| | - A Gredley
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - P T Greenlees
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - L J Harkness-Brennan
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - M Huyse
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - S M Judge
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - D S Judson
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - J Konki
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - J Kurcewicz
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - I Kuti
- Institute of Nuclear Research of the Hungarian Academy of Sciences, 4026 Debrecen, Hungary
| | - S Lalkovski
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - I H Lazarus
- STFC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - R Lică
- CERN, Physics Department, 1211 Geneva 23, Switzerland
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Lund
- Department of Physics and Astronomy, Aarhus University, DK-8000 Aarhus, Denmark
| | - M Madurga
- CERN, Physics Department, 1211 Geneva 23, Switzerland
- Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA
| | - N Marginean
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R Marginean
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - I Marroquin
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - C Mihai
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R E Mihai
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - E Nácher
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - A Negret
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - C Nita
- University of Brighton, Brighton BN2 4GJ, United Kingdom
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - S Pascu
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - R D Page
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - Z Patel
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - A Perea
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - J Phrompao
- Department of Physics and Materials Science, Chiang Mai University, 50200 Chiang Mai, Thailand
| | - M Piersa
- Faculty of Physics, University of Warsaw, PL 02-093 Warsaw, Poland
| | - V Pucknell
- STFC, Daresbury Laboratory, Warrington WA4 4AD, United Kingdom
| | - P Rahkila
- University of Jyvaskyla, Department of Physics, University of Jyvaskyla, P.O. Box 35, FI-40014 Jyvaskyla, Finland
- Helsinki Institute of Physics, University of Helsinki, P.O. Box 64, FI-00014 Helsinki, Finland
| | - E Rapisarda
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - P H Regan
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - F Rotaru
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - M Rudigier
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - C M Shand
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - R Shearman
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, United Kingdom
| | - S Stegemann
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - T Stora
- CERN, Physics Department, 1211 Geneva 23, Switzerland
| | - Ch Sotty
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
- Horea Hulubei National Institute for Physics and Nuclear Engineering, RO-077125 Bucharest, Romania
| | - O Tengblad
- Instituto de Estructura de la Materia, CSIC, Serrano 113 bis, E-28006 Madrid, Spain
| | - P Van Duppen
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
| | - V Vedia
- Grupo de Física Nuclear & IPARCOS, Universidad Complutense de Madrid, CEI Moncloa, E-28040 Madrid, Spain
| | - R Wadsworth
- University of York, Dept Phys, North Yorkshire YO10 5DD, United Kingdom
| | - P M Walker
- Department of Physics, University of Surrey, Guildford GU2 7XH, United Kingdom
| | - N Warr
- Institut für Kernphysik der Universität zu Köln, Zülpicher Str. 77, 50937 Köln, Germany
| | - F Wearing
- Department of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, United Kingdom
| | - H De Witte
- KU Leuven, Instituut voor Kern- en Stralingsfysica, Celestijnenlaan 200D, 3001 Leuven, Belgium
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14
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Fitzgerald R, Bergeron DE, Giblin SP, Jarrett DG, Judge SM, Michotte C, Scherer H, Zimmerman NM. The next generation of current measurement for ionization chambers. Appl Radiat Isot 2020; 163:109216. [PMID: 32561054 DOI: 10.1016/j.apradiso.2020.109216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Revised: 03/23/2020] [Accepted: 05/03/2020] [Indexed: 11/18/2022]
Abstract
Re-entrant ionization chambers (ICs) are essential to radionuclide metrology and nuclear medicine for maintaining standards and measuring half-lives. The requirements of top-level metrology demand that systems must be precise and stable to 0.1 % over many years, and linear from 10-14 A to 10-8 A. Thus, laboratories depend on bespoke current measurement systems and often rely on sealed sources to generate reference currents. To maintain and improve present capabilities, metrologists need to overcome two looming challenges: ageing electronics and decreasing availability of sealed sources. Possible solutions using Ultrastable Low-Noise Current Amplifiers (ULCAs), resistive-feedback electrometers, and (quantum) single-electron pumps are reviewed. Broader discussions of IC design and methodology are discussed. ULCAs show promise and resistive-feedback systems which take advantage of standard resistor calibrations offer an alternative.
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15
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Nosacka RL, Delitto AE, Delitto D, Patel R, Judge SM, Trevino JG, Judge AR. Distinct cachexia profiles in response to human pancreatic tumours in mouse limb and respiratory muscle. J Cachexia Sarcopenia Muscle 2020; 11:820-837. [PMID: 32039571 PMCID: PMC7296265 DOI: 10.1002/jcsm.12550] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/20/2019] [Accepted: 01/07/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Cancer cachexia is a life-threatening metabolic syndrome that causes significant loss of skeletal muscle mass and significantly increases mortality in cancer patients. Currently, there is an urgent need for better understanding of the molecular pathophysiology of this disease so that effective therapies can be developed. The majority of pre-clinical studies evaluating skeletal muscle's response to cancer have focused on one or two pre-clinical models, and almost all have focused specifically on limb muscles. In the current study, we reveal key differences in the histology and transcriptomic signatures of a limb muscle and a respiratory muscle in orthotopic pancreatic cancer patient-derived xenograft (PDX) mice. METHODS To create four cohorts of PDX mice evaluated in this study, tumours resected from four pancreatic ductal adenocarcinoma patients were portioned and attached to the pancreas of immunodeficient NSG mice. RESULTS Body weight, muscle mass, and fat mass were significantly decreased in each PDX line. Histological assessment of cryosections taken from the tibialis anterior (TA) and diaphragm (DIA) revealed differential effects of tumour burden on their morphology. Subsequent genome-wide microarray analysis on TA and DIA also revealed key differences between their transcriptomes in response to cancer. Genes up-regulated in the DIA were enriched for extracellular matrix protein-encoding genes and genes related to the inflammatory response, while down-regulated genes were enriched for mitochondria related protein-encoding genes. Conversely, the TA showed up-regulation of canonical atrophy-associated pathways such as ubiquitin-mediated protein degradation and apoptosis, and down-regulation of genes encoding extracellular matrix proteins. CONCLUSIONS These data suggest that distinct biological processes may account for wasting in different skeletal muscles in response to the same tumour burden. Further investigation into these differences will be critical for the future development of effective clinical strategies to counter cancer cachexia.
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Affiliation(s)
- Rachel L Nosacka
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, USA
| | - Andrea E Delitto
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, USA
| | - Dan Delitto
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, USA
| | - Rohan Patel
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, USA
| | - Jose G Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, USA
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16
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Judge SM, Deyhle MR, Neyroud D, Nosacka RL, D'Lugos AC, Cameron ME, Vohra RS, Smuder AJ, Roberts BM, Callaway CS, Underwood PW, Chrzanowski SM, Batra A, Murphy ME, Heaven JD, Walter GA, Trevino JG, Judge AR. MEF2c-Dependent Downregulation of Myocilin Mediates Cancer-Induced Muscle Wasting and Associates with Cachexia in Patients with Cancer. Cancer Res 2020; 80:1861-1874. [PMID: 32132110 DOI: 10.1158/0008-5472.can-19-1558] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 11/27/2019] [Accepted: 02/24/2020] [Indexed: 12/27/2022]
Abstract
Skeletal muscle wasting is a devastating consequence of cancer that contributes to increased complications and poor survival, but is not well understood at the molecular level. Herein, we investigated the role of Myocilin (Myoc), a skeletal muscle hypertrophy-promoting protein that we showed is downregulated in multiple mouse models of cancer cachexia. Loss of Myoc alone was sufficient to induce phenotypes identified in mouse models of cancer cachexia, including muscle fiber atrophy, sarcolemmal fragility, and impaired muscle regeneration. By 18 months of age, mice deficient in Myoc showed significant skeletal muscle remodeling, characterized by increased fat and collagen deposition compared with wild-type mice, thus also supporting Myoc as a regulator of muscle quality. In cancer cachexia models, maintaining skeletal muscle expression of Myoc significantly attenuated muscle loss, while mice lacking Myoc showed enhanced muscle wasting. Furthermore, we identified the myocyte enhancer factor 2 C (MEF2C) transcription factor as a key upstream activator of Myoc whose gain of function significantly deterred cancer-induced muscle wasting and dysfunction in a preclinical model of pancreatic ductal adenocarcinoma (PDAC). Finally, compared with noncancer control patients, MYOC was significantly reduced in skeletal muscle of patients with PDAC defined as cachectic and correlated with MEF2c. These data therefore identify disruptions in MEF2c-dependent transcription of Myoc as a novel mechanism of cancer-associated muscle wasting that is similarly disrupted in muscle of patients with cachectic cancer. SIGNIFICANCE: This work identifies a novel transcriptional mechanism that mediates skeletal muscle wasting in murine models of cancer cachexia that is disrupted in skeletal muscle of patients with cancer exhibiting cachexia.
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Affiliation(s)
- Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida.
| | - Michael R Deyhle
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Daria Neyroud
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Rachel L Nosacka
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Andrew C D'Lugos
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Miles E Cameron
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida.,Department of Surgery, University of Florida Health Science Center, Gainesville, Florida
| | - Ravneet S Vohra
- Department of Physiology, College of Medicine, University of Florida Health Science Center, Gainesville, Florida
| | - Ashley J Smuder
- Department of Health and Human Performance, University of Florida, Gainesville, Florida
| | - Brandon M Roberts
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Chandler S Callaway
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Patrick W Underwood
- Department of Surgery, University of Florida Health Science Center, Gainesville, Florida
| | - Stephen M Chrzanowski
- Department of Physiology, College of Medicine, University of Florida Health Science Center, Gainesville, Florida
| | - Abhinandan Batra
- Department of Physiology, College of Medicine, University of Florida Health Science Center, Gainesville, Florida
| | - Meghan E Murphy
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Jonathan D Heaven
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Glenn A Walter
- Department of Physiology, College of Medicine, University of Florida Health Science Center, Gainesville, Florida
| | - Jose G Trevino
- Department of Surgery, University of Florida Health Science Center, Gainesville, Florida
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida.
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17
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Underwood PW, Zhang DY, Cameron ME, Gerber MH, Delitto D, Maduka MU, Cooper KJ, Han S, Hughes SJ, Judge SM, Judge AR, Trevino JG. Nicotine Induces IL-8 Secretion from Pancreatic Cancer Stroma and Worsens Cancer-Induced Cachexia. Cancers (Basel) 2020; 12:cancers12020329. [PMID: 32024069 PMCID: PMC7072641 DOI: 10.3390/cancers12020329] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 01/20/2020] [Accepted: 01/22/2020] [Indexed: 01/18/2023] Open
Abstract
Smoking is highly associated with pancreatic cancer. Nicotine, the addictive component of tobacco, is involved in pancreatic cancer tumorigenesis, metastasis, and chemoresistance. This work aimed to describe the role of nicotine within the pancreatic cancer tumor microenvironment. Nicotine treatment was used in vitro to assess its effect on tumor-associated stromal cells and pancreatic cancer cells. Nicotine treatment was then used in a pancreatic cancer patient-derived xenograft model to study the effects in vivo. Nicotine induced secretion of interleukin 8 (IL-8) by tumor-associated stroma cells in an extracellular signal-regulated kinase (ERK)-dependent fashion. The secreted IL-8 and nicotine acted on the pancreatic cancer cell, resulting in upregulation of IL-8 receptor. Nicotine treatment of mice bearing pancreatic cancer patient-derived xenografts had significantly increased tumor mass, increased tumor-free weight loss, and decreased muscle mass. These represent important pathways through which nicotine acts within the tumor microenvironment and worsens pancreatic cancer-induced cachexia, potentially representing future therapeutic targets.
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Affiliation(s)
- Patrick W. Underwood
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Dong Yu Zhang
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Miles E. Cameron
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Michael H. Gerber
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Daniel Delitto
- Department of Surgery, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA;
| | - Michael U. Maduka
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Kyle J. Cooper
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Song Han
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Steven J. Hughes
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
| | - Sarah M. Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL 32610, USA; (S.M.J.); (A.R.J.)
| | - Andrew R. Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL 32610, USA; (S.M.J.); (A.R.J.)
| | - Jose G. Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA; (P.W.U.); (D.Y.Z.); (M.E.C.); (M.H.G.); (M.U.M.); (K.J.C.); (S.H.); (S.J.H.)
- Correspondence:
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18
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Kandarian SC, Nosacka RL, Delitto AE, Judge AR, Judge SM, Ganey JD, Moreira JD, Jackman RW. Tumour-derived leukaemia inhibitory factor is a major driver of cancer cachexia and morbidity in C26 tumour-bearing mice. J Cachexia Sarcopenia Muscle 2018; 9:1109-1120. [PMID: 30270531 PMCID: PMC6240747 DOI: 10.1002/jcsm.12346] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 08/15/2018] [Accepted: 08/19/2018] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Cancer cachexia is a metabolic wasting syndrome that is strongly associated with a poor prognosis. The initiating factors causing fat and muscle loss are largely unknown. Previously, we found that leukaemia inhibitory factor (LIF) secreted by C26 colon carcinoma cells was responsible for atrophy in treated myotubes. In the present study, we tested whether C26 tumour-derived LIF is required for cancer cachexia in mice by knockout of Lif in C26 cells. METHODS A C26 Lif null tumour cell line was made using CRISPR-Cas9. Measurements of cachexia were compared in mice inoculated with C26 vs. C26Lif-/- tumour cells, and atrophy was compared in myotubes treated with medium from C26 vs. C26Lif-/- tumour cells. Levels of 25 cytokines/chemokines were compared in serum of mice bearing C26 vs. C26Lif-/- tumours and in the medium from these tumour cell lines. RESULTS At study endpoint, C26 mice showed outward signs of sickness while mice with C26Lif-/- tumours appeared healthy. Mice with C26Lif-/- tumours showed a 55-75% amelioration of body weight loss, muscle loss, fat loss, and splenomegaly compared with mice with C26 tumours (P < 0.05). The heart was not affected by LIF levels because the loss of cardiac mass was the same in C26 and C26Lif-/- tumour-bearing mice. LIF levels in mouse serum was entirely dependent on secretion from the tumour cells. Serum levels of interleukin-6 and G-CSF were increased by 79-fold and 68-fold, respectively, in C26 mice but only by five-fold and two-fold, respectively, in C26Lif-/- mice, suggesting that interleukin-6 and G-CSF increases are dependent on tumour-derived LIF. CONCLUSIONS This study shows the first use of CRISPR-Cas9 knockout of a candidate cachexia factor in tumour cells. The results provide direct evidence for LIF as a major cachexia initiating factor for the C26 tumour in vivo. Tumour-derived LIF was also a regulator of multiple cytokines in C26 tumour cells and in C26 tumour-bearing mice. The identification of tumour-derived factors such as LIF that initiate the cachectic process is immediately applicable to the development of therapeutics to treat cachexia. This is a proof of principle for studies that when carried out in human cells, will make possible an understanding of the factors causing cachexia in a patient-specific manner.
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Affiliation(s)
| | - Rachel L. Nosacka
- Department of Physical TherapyUniversity of FloridaGainesvilleFL32610USA
| | - Andrea E. Delitto
- Department of Oral Biology, College of DentistryUniversity of Florida Health Science CenterGainesvilleFL32610USA
| | - Andrew R. Judge
- Department of Physical TherapyUniversity of FloridaGainesvilleFL32610USA
| | - Sarah M. Judge
- Department of Physical TherapyUniversity of FloridaGainesvilleFL32610USA
| | - John D. Ganey
- Department of Health SciencesBoston UniversityBostonMA02215USA
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19
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Murphy KT, Hossain MI, Swiderski K, Chee A, Naim T, Trieu J, Haynes V, Read SJ, Stapleton DI, Judge SM, Trevino JG, Judge AR, Lynch GS. Mas Receptor Activation Slows Tumor Growth and Attenuates Muscle Wasting in Cancer. Cancer Res 2018; 79:706-719. [PMID: 30420474 DOI: 10.1158/0008-5472.can-18-1207] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 09/27/2018] [Accepted: 11/07/2018] [Indexed: 01/06/2023]
Abstract
Cancer cachexia is a multifactorial syndrome characterized by a progressive loss of skeletal muscle mass associated with significant functional impairment. Cachexia robs patients of their strength and capacity to perform daily tasks and live independently. Effective treatments are needed urgently. Here, we investigated the therapeutic potential of activating the "alternative" axis of the renin-angiotensin system, involving ACE2, angiotensin-(1-7), and the mitochondrial assembly receptor (MasR), for treating cancer cachexia. Plasmid overexpression of the MasR or pharmacologic angiotensin-(1-7)/MasR activation did not affect healthy muscle fiber size in vitro or in vivo but attenuated atrophy induced by coculture with cancer cells in vitro. In mice with cancer cachexia, the MasR agonist AVE 0991 slowed tumor development, reduced weight loss, improved locomotor activity, and attenuated muscle wasting, with the majority of these effects dependent on the orexigenic and not antitumor properties of AVE 0991. Proteomic profiling and IHC revealed that mechanisms underlying AVE 0991 effects on skeletal muscle involved miR-23a-regulated preservation of the fast, glycolytic fibers. MasR activation is a novel regulator of muscle phenotype, and AVE 0991 has orexigenic, anticachectic, and antitumorigenic effects, identifying it as a promising adjunct therapy for cancer and other serious muscle wasting conditions. SIGNIFICANCE: These findings demonstrate that MasR activation has multiple benefits of being orexigenic, anticachectic, and antitumorigenic, revealing it as a potential adjunct therapy for cancer.Graphical Abstract: http://cancerres.aacrjournals.org/content/canres/79/4/706/F1.large.jpg.See related commentary by Rupert et al., p. 699.
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Affiliation(s)
- Kate T Murphy
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia.
| | - Mohammed I Hossain
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Kristy Swiderski
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Annabel Chee
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Timur Naim
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Jennifer Trieu
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Vanessa Haynes
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Suzannah J Read
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - David I Stapleton
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Jose G Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, Florida
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, Florida
| | - Gordon S Lynch
- Centre for Muscle Research, Department of Physiology, The University of Melbourne, Victoria, Australia
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20
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Judge SM, Nosacka RL, Delitto D, Gerber MH, Cameron ME, Trevino JG, Judge AR. Skeletal Muscle Fibrosis in Pancreatic Cancer Patients with Respect to Survival. JNCI Cancer Spectr 2018; 2:pky043. [PMID: 30637373 PMCID: PMC6322478 DOI: 10.1093/jncics/pky043] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 06/20/2018] [Accepted: 07/25/2018] [Indexed: 12/18/2022] Open
Abstract
Background Cancer cachexia is a catabolic condition characterized by skeletal muscle wasting, consequent to tumor burden, which negatively impacts tolerance to cancer therapies and contributes to increased mortality. Partly because of the limited knowledge of the underlying mechanisms of cancer cachexia derived from human studies, however, the ability to therapeutically intervene remains elusive. The purpose of the current study was therefore to better define the phenotype of skeletal muscle obtained from patients with pancreatic ductal adenocarcinoma (PDAC), which has one of the highest rates of cachexia. Methods Morphological analyses were performed on rectus abdominis muscle biopsies obtained from resectable PDAC patients undergoing tumor resection surgery (N = 20) and from weight-stable non-cancer control subjects undergoing benign abdominal surgery (N = 16). PDAC patients with a body weight loss of greater than 5% during the previous 6 months were considered cachectic (N = 15). Statistical tests were two sided. Results Skeletal muscle from cachectic PDAC patients had increased collagen content compared with non-cancer control subjects (1.43% vs 9.66%, P = .0004, Dunn test). Across all PDAC patients, collagen content positively correlated with body weight loss (P = .0016, r = 0.672), was increased in patients with lymph node metastasis (P = .007, Mann-Whitney U test), and was associated with survival on univariate (HR = 1.08, 95% confidence interval [CI] = 1.02 to 1.04, P = .008) and multivariable analyses (HR = 1.08, 95% CI = 1.00 to 1.17, P = .038). Cachectic PDAC patients also displayed increased lipid deposition (2.63% vs 5.72%, P = .042), infiltration of CD68+ macrophages (63.6 cells/mm2 vs 233.8 cells/mm2, P = .0238), calcium deposition (0.21% vs 2.51%, P = .030), and evidence of deficient cellular quality control mechanisms (Mann-Whitney U test). Transcriptional profiling of all patients supported these findings by identifying gene clusters related to wounding, inflammation, and cellular response to TGF-β upregulated in cachectic PDAC patients compared with non-cancer control subjects. Conclusions To our knowledge, this work is the first to demonstrate increased collagen content in cachectic PDAC patients that is associated with poor survival.
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Affiliation(s)
- Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL
| | - Rachel L Nosacka
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL
| | - Daniel Delitto
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Michael H Gerber
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Miles E Cameron
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Jose G Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL
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Delitto D, Judge SM, Delitto AE, Nosacka RL, Rocha FG, DiVita BB, Gerber MH, George TJ, Behrns KE, Hughes SJ, Wallet SM, Judge AR, Trevino JG. Human pancreatic cancer xenografts recapitulate key aspects of cancer cachexia. Oncotarget 2018; 8:1177-1189. [PMID: 27901481 PMCID: PMC5352045 DOI: 10.18632/oncotarget.13593] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 11/08/2016] [Indexed: 12/27/2022] Open
Abstract
Cancer cachexia represents a debilitating syndrome that diminishes quality of life and augments the toxicities of conventional treatments. Cancer cachexia is particularly debilitating in patients with pancreatic cancer (PC). Mechanisms responsible for cancer cachexia are under investigation and are largely derived from observations in syngeneic murine models of cancer which are limited in PC. We evaluate the effect of human PC cells on both muscle wasting and the systemic inflammatory milieu potentially contributing to PC-associated cachexia. Specifically, human PC xenografts were generated by implantation of pancreatic cancer cells, L3.6pl and PANC-1, either in the flank or orthotopically within the pancreas. Mice bearing orthotopic xenografts demonstrated significant muscle wasting and atrophy-associated gene expression changes compared to controls. Further, despite the absence of adaptive immunity, splenic tissue from orthotopically engrafted mice demonstrated elevations in several pro-inflammatory cytokines associated with cancer cachexia, including TNFα, IL1β, IL6 and KC (murine IL8 homologue), when compared to controls. Therefore, data presented here support further investigation into the complexity of cancer cachexia in PC to identify potential targets for this debilitating syndrome.
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Affiliation(s)
- Daniel Delitto
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Andrea E Delitto
- Department of Oral Biology, College of Dentistry, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Rachel L Nosacka
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Fernanda G Rocha
- Department of Oral Biology, College of Dentistry, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Bayli B DiVita
- Department of Oral Biology, College of Dentistry, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Michael H Gerber
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Thomas J George
- Department of Medicine, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Kevin E Behrns
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Steven J Hughes
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Shannon M Wallet
- Department of Oral Biology, College of Dentistry, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL 32610, USA
| | - Jose G Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL 32610, USA
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Delitto D, Judge SM, George TJ, Sarosi GA, Thomas RM, Behrns KE, Hughes SJ, Judge AR, Trevino JG. A clinically applicable muscular index predicts long-term survival in resectable pancreatic cancer. Surgery 2016; 161:930-938. [PMID: 27932030 DOI: 10.1016/j.surg.2016.09.038] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/30/2016] [Accepted: 09/07/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND The relationship between myopenia, nutritional status, and long-term oncologic outcomes remains poorly characterized in patients with clinically resectable pancreatic cancer. We sought to reliably quantify prognostic indicators of preoperative cachexia in a manner applicable to any clinical setting. METHODS Preoperative computed tomographies were available electronically and suitable for analysis in 73 of 82 consecutive patients with pancreatic cancer undergoing pancreatoduodenectomy between November 2010 and February 2014. The psoas index was computed from the cross-sectional area of the psoas muscles normalized to vertebral body area at the third lumbar vertebra. Correlation and proportional hazards analyses were performed to identify relationships between muscularity, preoperative nutritional markers, clinicopathologic parameters, and long-term survival. RESULTS The psoas index correlated strongly with preoperative hemoglobin and albumin levels (P = .001 and .014, respectively) identifying a pattern of preoperative frailty. High psoas index and the albumin and hemoglobin levels were associated with improved long-term survival (hazard ratio 0.014, P < .001; hazard ratio 0.43, P < .001; and hazard ratio = 0.80, P = .014); however, on multivariate analysis, the psoas index proved to be the only independent predictor of survival (hazard ratio 0.021; P = .003). Rapid decreases in the psoas index during neoadjuvant chemotherapy were associated with poor postoperative outcomes, as were decreases in the psoas index during the postoperative period. CONCLUSION The data indicate that the psoas index, a calculation derived from a clinically mandated, preoperative computed tomography, is a statistically powerful and easily calculated predictor of survival in pancreatic cancer when compared to tumor grade and stage as well as previously validated nutritional parameters.
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Affiliation(s)
- Daniel Delitto
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Sarah M Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL
| | - Thomas J George
- Department of Medicine, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - George A Sarosi
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL; North Florida/South Georgia Veterans Health System, Department of Surgery, University of Florida College of Medicine, Gainesville, FL
| | - Ryan M Thomas
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL; North Florida/South Georgia Veterans Health System, Department of Surgery, University of Florida College of Medicine, Gainesville, FL
| | - Kevin E Behrns
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Steven J Hughes
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida Health Science Center, Gainesville, FL
| | - Jose G Trevino
- Department of Surgery, College of Medicine, University of Florida Health Science Center, Gainesville, FL.
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Delitto D, Judge SM, Nosacka RL, Knowlton A, Rocha FG, Behrns KE, Hughes SJ, Wallet SM, Judge AR, Treviño. JG. Abstract 1017: Pro-inflammatory cytokine secretion and gene networks associate with pancreatic cancer induced cachexia. Cancer Res 2016. [DOI: 10.1158/1538-7445.am2016-1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Introduction: Pancreatic cancer (PC) is associated with a high rate of cachexia, which specifically diminishes quality of life, prohibits effective therapies, and subsequently contributes to morbidity and mortality. Unfortunately, mechanisms underlying this cancer-induced muscle wasting in the human disease remain incompletely described, in part due to limited translational models. Therefore, we hypothesize that the development of more representative models of PC cachexia will allow for development of therapeutic targets for cachexia. To test our hypothesis, we propose to 1) establish the first patient-derived xenograft (PDX) cancer cachexia models to identify the muscle associated with PC induced cachexia and 2) support these results by examining the corresponding skeletal muscle of PC patients whom contributed to the PDX models. Methods: Rectus abdominis muscle was biopsied from surgically resected PC patients and matched non-cancer controls. After surgical harvest of PC specimen, PDX models were derived in NOD.Cg-PrkdcscidIl2rgtm1Wjl/SzJ (NSG) mice and skeletal muscle was subsequently harvested for histologic investigations on ultrastructural disorganization and qRT-PCR for atrophy-related transcription factors differentially regulated in PC patients. Systemic cytokine expression profiles were analyzed with luminex technology and confirmed by ELISA. Results: Rectus biopsies from patients with resected PC displayed marked muscle fiber atrophy, increased extracellular space, greater variation in fiber size and shape and more centralized nuclei compared to controls. These architectural abnormalities were also present in mice bearing xenografts from corresponding PC patients. Despite the absence of an adaptive immune system, PDX mice demonstrated high levels of systemic TNFα, IL-1β, IL6 and KC (IL8) with a concomitant decrease in anti-inflammatory cytokine IL10 when compared to matched controls. Further, skeletal muscle from both patients with PC and mice bearing PDX tumors demonstrated increased expression of the Forkhead boxO1 (FoxO1) transcription factor and FoxO target gene and E3 ubiquitin ligase, MuRF1, both of which have been directly implicated in the regulation of muscle mass. Conclusions: Preoperative muscle wasting in PC is associated with characteristic architectural abnormalities and elevated FoxO1-MuRF1 levels. Mice bearing PDX demonstrate comparable elevations in circulating pro-inflammatory cytokines, muscle pathology and FoxO1-MuRF1 levels. These results provide a valid translational model of cachexia which suggests a central role for FoxO1 and MuRF1 in PC-associated muscle wasting.
Citation Format: Daniel Delitto, Sarah M. Judge, Rachel L. Nosacka, Andrea Knowlton, Fernanda G. Rocha, Kevin E. Behrns, Steven J. Hughes, Shannon M. Wallet, Andrew R. Judge, Jose G. Treviño. Pro-inflammatory cytokine secretion and gene networks associate with pancreatic cancer induced cachexia. [abstract]. In: Proceedings of the 107th Annual Meeting of the American Association for Cancer Research; 2016 Apr 16-20; New Orleans, LA. Philadelphia (PA): AACR; Cancer Res 2016;76(14 Suppl):Abstract nr 1017.
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Lorusso G, Shearman R, Regan PH, Judge SM, Bell S, Collins SM, Larijani C, Ivanov P, Jerome SM, Keightley JD, Lalkovski S, Pearce AK, Podolyak Z. Development of the NPL gamma-ray spectrometer NANA for traceable nuclear decay and structure studies. Appl Radiat Isot 2016; 109:507-511. [PMID: 26795270 DOI: 10.1016/j.apradiso.2015.12.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 12/17/2015] [Indexed: 11/18/2022]
Abstract
We present a brief report on the progress towards the construction of the National Nuclear Array (NANA), a gamma-ray coincidence spectrometer for discrete-line nuclear structure and decay measurements. The proposed spectrometer will combine a gamma-ray energy resolution of approximately 3% at 1MeV with sub-nanosecond timing discrimination between successive gamma rays in mutually coincident decay cascades. We also review a number of recent measurements using coincidence fast-timing gamma-ray spectroscopy for nuclear structure studies, which have helped to inform the design criteria for the NANA spectrometer.
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Affiliation(s)
- G Lorusso
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - R Shearman
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - P H Regan
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK.
| | - S M Judge
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - S Bell
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - S M Collins
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
| | - C Larijani
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK; Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - P Ivanov
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
| | - S M Jerome
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
| | - J D Keightley
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
| | - S Lalkovski
- Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - A K Pearce
- Department of Physics, University of Surrey, Guildford GU2 7XH, UK
| | - Zs Podolyak
- National Physical Laboratory, Teddington, Middlesex TW11 0LW, UK
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Ryder DJ, Judge SM, Beharry AW, Farnsworth CL, Silva JC, Judge AR. Identification of the Acetylation and Ubiquitin-Modified Proteome during the Progression of Skeletal Muscle Atrophy. PLoS One 2015; 10:e0136247. [PMID: 26302492 PMCID: PMC4547751 DOI: 10.1371/journal.pone.0136247] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 07/31/2015] [Indexed: 02/07/2023] Open
Abstract
Skeletal muscle atrophy is a consequence of several physiological and pathophysiological conditions including muscle disuse, aging and diseases such as cancer and heart failure. In each of these conditions, the predominant mechanism contributing to the loss of skeletal muscle mass is increased protein turnover. Two important mechanisms which regulate protein stability and degradation are lysine acetylation and ubiquitination, respectively. However our understanding of the skeletal muscle proteins regulated through acetylation and ubiquitination during muscle atrophy is limited. Therefore, the purpose of the current study was to conduct an unbiased assessment of the acetylation and ubiquitin-modified proteome in skeletal muscle during a physiological condition of muscle atrophy. To induce progressive, physiologically relevant, muscle atrophy, rats were cast immobilized for 0, 2, 4 or 6 days and muscles harvested. Acetylated and ubiquitinated peptides were identified via a peptide IP proteomic approach using an anti-acetyl lysine antibody or a ubiquitin remnant motif antibody followed by mass spectrometry. In control skeletal muscle we identified and mapped the acetylation of 1,326 lysine residues to 425 different proteins and the ubiquitination of 4,948 lysine residues to 1,131 different proteins. Of these proteins 43, 47 and 50 proteins were differentially acetylated and 183, 227 and 172 were differentially ubiquitinated following 2, 4 and 6 days of disuse, respectively. Bioinformatics analysis identified contractile proteins as being enriched among proteins decreased in acetylation and increased in ubiquitination, whereas histone proteins were enriched among proteins increased in acetylation and decreased in ubiquitination. These findings provide the first proteome-wide identification of skeletal muscle proteins exhibiting changes in lysine acetylation and ubiquitination during any atrophy condition, and provide a basis for future mechanistic studies into how the acetylation and ubiquitination status of these identified proteins regulates the muscle atrophy phenotype.
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Affiliation(s)
- Daniel J. Ryder
- Department of Physical Therapy, University of Florida, Gainesville, FL, United States of America
| | - Sarah M. Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, United States of America
| | - Adam W. Beharry
- Department of Physical Therapy, University of Florida, Gainesville, FL, United States of America
| | | | - Jeffrey C. Silva
- Cell Signaling Technology, Danvers, MA, United States of America
| | - Andrew R. Judge
- Department of Physical Therapy, University of Florida, Gainesville, FL, United States of America
- * E-mail:
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Chittoor-Vinod VG, Lee S, Judge SM, Notterpek L. Inducible HSP70 is critical in preventing the aggregation and enhancing the processing of PMP22. ASN Neuro 2015; 7:7/1/1759091415569909. [PMID: 25694550 PMCID: PMC4342366 DOI: 10.1177/1759091415569909] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Chaperones, also called heat shock proteins (HSPs), transiently interact with proteins to aid their folding, trafficking, and degradation, thereby directly influencing the transport of newly synthesized molecules. Induction of chaperones provides a potential therapeutic approach for protein misfolding disorders, such as peripheral myelin protein 22 (PMP22)-associated peripheral neuropathies. Cytosolic aggregates of PMP22, linked with a demyelinating Schwann cell phenotype, result in suppression of proteasome activity and activation of proteostatic mechanisms, including the heat shock pathway. Although the beneficial effects of chaperones in preventing the aggregation and improving the trafficking of PMP22 have been repeatedly observed, the requirement for HSP70 in events remains elusive. In this study, we show that activation of the chaperone pathway in fibroblasts from PMP22 duplication-associated Charcot–Marie–Tooth disease type 1A patient with an FDA-approved small molecule increases HSP70 expression and attenuates proteasome dysfunction. Using cells from an HSP70.1/3−/− (inducible HSP70) mouse model, we demonstrate that under proteotoxic stress, this chaperone is critical in preventing the aggregation of PMP22, and this effect is aided by macroautophagy. When examined at steady-state, HSP70 appears to play a minor role in the trafficking of wild-type-PMP22, while it is crucial for preventing the buildup of the aggregation-prone Trembler-J-PMP22. HSP70 aids the processing of Trembler-J-PMP22 through the Golgi and its delivery to lysosomes via Rab7-positive vesicles. Together, these results demonstrate a key role for inducible HSP70 in aiding the processing and hindering the accumulation of misfolded PMP22, which in turn alleviates proteotoxicity within the cells.
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Affiliation(s)
- Vinita G Chittoor-Vinod
- Departments of Neuroscience and Neurology, College of Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Sooyeon Lee
- Departments of Neuroscience and Neurology, College of Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL, USA
| | - Sarah M Judge
- Department of Physical Therapy, College of Public Health & Health Professions, University of Florida, Gainesville, FL, USA
| | - Lucia Notterpek
- Departments of Neuroscience and Neurology, College of Medicine, McKnight Brain Institute, University of Florida, Gainesville, FL, USA
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Judge SM, Wu CL, Beharry AW, Roberts BM, Ferreira LF, Kandarian SC, Judge AR. Genome-wide identification of FoxO-dependent gene networks in skeletal muscle during C26 cancer cachexia. BMC Cancer 2014; 14:997. [PMID: 25539728 PMCID: PMC4391468 DOI: 10.1186/1471-2407-14-997] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Accepted: 12/11/2014] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Evidence from cachectic cancer patients and animal models of cancer cachexia supports the involvement of Forkhead box O (FoxO) transcription factors in driving cancer-induced skeletal muscle wasting. However, the genome-wide gene networks and associated biological processes regulated by FoxO during cancer cachexia are unknown. We hypothesize that FoxO is a central upstream regulator of diverse gene networks in skeletal muscle during cancer that may act coordinately to promote the wasting phenotype. METHODS To inhibit endogenous FoxO DNA-binding, we transduced limb and diaphragm muscles of mice with AAV9 containing the cDNA for a dominant negative (d.n.) FoxO protein (or GFP control). The d.n.FoxO construct consists of only the FoxO3a DNA-binding domain that is highly homologous to that of FoxO1 and FoxO4, and which outcompetes and blocks endogenous FoxO DNA binding. Mice were subsequently inoculated with Colon-26 (C26) cells and muscles harvested 26 days later. RESULTS Blocking FoxO prevented C26-induced muscle fiber atrophy of both locomotor muscles and the diaphragm and significantly spared force deficits. This sparing of muscle size and function was associated with the differential regulation of 543 transcripts (out of 2,093) which changed in response to C26. Bioinformatics analysis of upregulated gene transcripts that required FoxO revealed enrichment of the proteasome, AP-1 and IL-6 pathways, and included several atrophy-related transcription factors, including Stat3, Fos, and Cebpb. FoxO was also necessary for the cancer-induced downregulation of several gene transcripts that were enriched for extracellular matrix and sarcomere protein-encoding genes. We validated these findings in limb muscles and the diaphragm through qRT-PCR, and further demonstrate that FoxO1 and/or FoxO3a are sufficient to increase Stat3, Fos, Cebpb, and the C/EBPβ target gene, Ubr2. Analysis of the Cebpb proximal promoter revealed two bona fide FoxO binding elements, which we further establish are necessary for Cebpb promoter activation in response to IL-6, a predominant cytokine in the C26 cancer model. CONCLUSIONS These findings provide new evidence that FoxO-dependent transcription is a central node controlling diverse gene networks in skeletal muscle during cancer cachexia, and identifies novel candidate genes and networks for further investigation as causative factors in cancer-induced wasting.
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Affiliation(s)
- Sarah M Judge
- Department of Physical Therapy, University of Florida, 1225 Center Drive, HPNP Building 1142, Gainesville, Florida, USA.
| | - Chia-Ling Wu
- Department of Health Sciences, Boston University, Boston, Massachusetts, USA.
| | - Adam W Beharry
- Department of Physical Therapy, University of Florida, 1225 Center Drive, HPNP Building 1142, Gainesville, Florida, USA.
| | - Brandon M Roberts
- Department of Physical Therapy, University of Florida, 1225 Center Drive, HPNP Building 1142, Gainesville, Florida, USA.
| | - Leonardo F Ferreira
- Department of Applied Physiology and Kinesiology, University of Florida, Gainesville, Florida, USA.
| | - Susan C Kandarian
- Department of Health Sciences, Boston University, Boston, Massachusetts, USA.
| | - Andrew R Judge
- Department of Physical Therapy, University of Florida, 1225 Center Drive, HPNP Building 1142, Gainesville, Florida, USA.
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Judge SM, Krusche B, Schreckenbach K, Tsertos H, Kienle P. Search for long-lived neutral resonances in Bhabha scattering around 1.8 MeV/c2. Phys Rev Lett 1990; 65:972-975. [PMID: 10043073 DOI: 10.1103/physrevlett.65.972] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Chodak GW, Hospelhorn V, Judge SM, Mayforth R, Koeppen H, Sasse J. Increased levels of fibroblast growth factor-like activity in urine from patients with bladder or kidney cancer. Cancer Res 1988; 48:2083-8. [PMID: 3349479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Growth factor activity was partially purified from human renal tumors and a human bladder cancer cell line by heparin-Sepharose chromatography. This activity stimulated bovine capillary endothelial cell proliferation and DNA synthesis in BALB/c 3T3 cells. Partially purified growth factor preparations from these tumors contained a protein with an approximate molecular weight of 17,000 which was recognized by a polyclonal antiserum raised against a peptide fragment of basic fibroblast growth factor (FGF). This growth factor activity appears to be related to basic fibroblast growth factor. Measurement of FGF-like activity in 50 urine samples from 32 adult males showed that 55% (6 of 11) of the urine samples from patients with bladder cancer and 100% (7 of 7) of the urine samples from patients with kidney cancer contained activity equivalent to more than 20 ng of basic FGF/h of urine production. In contrast, only 6% (2 of 32) of the urine samples from controls, patients with a benign disease, or patients with a history of bladder or kidney cancer contained this level of growth factor activity. These results suggest that patients with bladder or kidney cancer release an FGF-like factor into urine which may be used as a marker for these tumors.
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Affiliation(s)
- G W Chodak
- Department of Surgery/Urology, University of Chicago, Illinois 60637
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Abstract
The relationship between growth factor responses and androgen-induced cell proliferation was studied in a mouse renal tumor (RAG) cell line, a hybrid (F614B16) rat prostate x RAG cell line, and an 8-azaguanine-resistant revertant of the F614B16 cell line. The hybrid F614B16 cells are very sensitive to androgens; treatment with 20 nM 5 alpha-dihydrotestosterone accelerated cell growth in the presence or absence of serum. In contrast, the RAG cells and 8-azaguanine-resistant F614B16 cells responded to 5 alpha-dihydrotestosterone only in the absence of serum. Variation in the proliferative response to androgens among these cell lines was associated with variation in growth factor sensitivity. Basic fibroblast growth factor (bFGF) stimulated basal and androgen-induced growth of F614B16 cells in serum-free and serum-supplemented media, whereas it inhibited RAG cell growth. Basic FGF stimulated basal, but not androgen-induced growth of revertant F614B16 cells. The cell lines also differed in sensitivity to epidermal growth factor, which had no effect on hybrid cell growth but inhibited RAG and revertant cell growth in a dose-dependent fashion in serum-free media. The results of these studies suggest that androgen-sensitivity is associated with a positive response to FGF and insensitivity to exogenous epidermal growth factor.
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Affiliation(s)
- S M Judge
- Department of Urology Surgery, University of Chicago, Illinois 60637
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Judge SM, Woods MJ, Waters SL, Butler KR. A partial decay scheme study of 82Rb and consequences for radiation dose measurements. Int J Rad Appl Instrum A 1987; 38:185-90. [PMID: 3034826 DOI: 10.1016/0883-2889(87)90085-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Measurements of the relative emission rates of the 776 keV gamma ray, the positrons and the K x-rays in the decay of 82Rb have been repeated. This has led to the finding that the gamma ray to positron ratio is 0.1578 +/- 0.0019 and that the 776 keV gamma-ray probability per decay is (15.12 +/- 0.18)%.
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Chodak GW, Shing Y, Borge M, Judge SM, Klagsbrun M. Presence of heparin binding growth factor in mouse bladder tumors and urine from mice with bladder cancer. Cancer Res 1986; 46:5507-10. [PMID: 3756899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Heparin affinity chromatography has been used to partially purify angiogenic factors from normal and neoplastic tissue. The same technique was used to partially purify angiogenic-like factors from two mouse bladder tumors and urine from mice with bladder cancer. Both MBT-2 and MB49 tumors contained heparin-binding 3T3 cell growth factor activity that was eluted by 1.2 to 1.4 M salt. The growth factor isolated from MBT-2 tumor was mitogenic for capillary endothelial cells. Analysis of the 1.2 M heparin eluate by high-pressure liquid chromatography showed that it consisted of two 3T3 cell growth factors with molecular weights of 16,000 and 26,000. The growth factor activity isolated from MB49 tumors had an affinity for Bio-rex 70 which was similar to other cationic heparin binding growth factors. Analysis of urine pooled from tumor-bearing mice by heparin-Sepharose chromatography demonstrated 3T3 cell growth factor activity in fractions eluted with 1 to 1.4 and 2.5 M dsalt, whereas no significant growth factor activity was detected in pooled urine from control mice. The growth factor activity found in mouse bladder tumors differed from epidermal growth factor, transforming growth factor-alpha, and platelet-derived growth factor in terms of affinity for heparin-Sepharose and molecular weight. The observation that urine from tumor-bearing mice contains increased concentrations of this growth factor compared to normal urine suggests that a similar relationship may exist for human urine.
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Judge SM, Phillips MM, Liao S. Steroid metabolism and binding activity in a murine renal tumor cell line. J Steroid Biochem 1984; 21:505-11. [PMID: 6334789 DOI: 10.1016/0022-4731(84)90323-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The purpose of this study was to partially characterize the steroid binding activity of murine renal tumor cells in continuous culture. The steroid receptor content of a cloned renal tumor cell line (RAG) and a subline RAG-2 was examined by sucrose gradient analysis, hydroxylapatite and dextran-coated charcoal methods. The RAG cells lacked estrogen- and progestin-binding activity, whereas specific 5 alpha-dihydrotestosterone (DHT) and dexamethasone (Dx) binding activities were detected as 8S peaks on low salt gradients. The specificity of DHT binding was examined by sucrose gradient analysis: DHT, R1881 and ORG2058 all completely inhibited [3H]DHT binding whereas diethylstilbestrol and Dx were ineffective. The androgen receptor content of the RAG cells was approx. 15 fmol/mg cytosol protein by the hydroxylapatite-filter assay, with an estimated Kd for methyltrienolone (R1881) of 5 nM at 0 degrees C. Scatchard analysis of [3H]Dx binding by RAG cytosol showed a Kd of 6 nM for Dx and 44 nM for corticosterone at 0 degrees C. Glucocorticoid receptor levels were estimated to be 182 fmol/mg cytosol protein by dextran-coated charcoal assay. Metabolism of [3H]testosterone and [3H]DHT by RAG cells was examined 1, 4 and 6 h after exposure to labeled hormone. Radioactive DHT was the primary intracellular metabolite recovered after exposure to [3H]testosterone. There was little conversion of DHT to androstanediol.
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Abstract
Variant androgen-sensitive cell lines were produced by fusing freshly isolated epithelial cells from the rat ventral prostate with a line of murine renal tumor (RAG) cells. The properties of the cloned lines of the prostate X RAG hybrids can be summarized as follows: (1) the modal chromosome number of the hybrid cell lines ranged from 68 to 176; (2) the cells had doubling times of 7.6-49.5 h; and (3) epitheloid, ameboid and intermediate morphologies were observed among the various lines. The proliferative response of various hybrid lines to treatment with 10 nM 5 alpha-dihydrotestosterone was used to classify the hybrids as either very sensitive (greater than 40% reduction in cell doubling time), sensitive (greater than 10% reduction in doubling time) to androgens, or insensitive (less than 10% reduction in doubling time) to androgens. There was no direct relationship between the androgen-sensitivity of the cells and their androgen receptor content, suggesting that these variant cell lines may be useful for the study of the genetic factors involved in cellular responses to androgens.
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Judge SM, Chatterton RT. Progesterone-specific stimulation of triglyceride biosynthesis in a breast cancer cell line (T-47D). Cancer Res 1983; 43:4407-12. [PMID: 6871874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The purpose of this study was to examine the lactogenic response of human mammary cancer cell lines to hormones in vitro. Progesterone was found to stimulate the incorporation of 14C from [14C]acetate into triglycerides (TG) and to promote accumulation of TG with a fatty acid composition similar to that of human milk fat in T-47D cells. Lipid droplets were observed in larger numbers without concomitant accumulation of casein granules in cells incubated with progesterone, but secretion of lipid into the medium did not occur. An effect of progesterone on TG accumulation was detectable after 12 hr and was maximal at 72 hr. Increasing doses of progesterone (10(-9) to 10(-5) M) caused a progressive increase in TG accumulation. The presence of cortisol and/or prolactin did not alter TG formation nor the dose response of the cells to progesterone. The growth rate of T-47D cells was not altered by the presence of progesterone in the medium. Neither of the human mammary cancer cell lines, MCF-7 and HBL-100, nor the human fibroblast cell lines, 28 and 857, responded to progesterone. The data indicate that, while the normally lactogenic hormones do not stimulate milk product biosynthesis in the cell lines tested, progesterone specifically stimulated synthesis and accumulation of TG in the T-47D cells.
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Judge SM, Quade JP, Arrata WS, Chatterton RT. Time-course relationships between serum LH, serum progesterone and urinary preganediol concentrations in normal women. Steroids 1978; 31:175-87. [PMID: 663962 DOI: 10.1016/0039-128x(78)90111-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A specific and sensitive gas chromatographic method was used to investigate the concentration of pregnanediol glucuronide in urine in relation to the time of ovulation. Serum LH and progesterone concentrations in the same subjects were used as evidence for the occurrence of ovulation. The urinary concentration of pregnanediol glucuronide in 24-hour collections and in overnight specimens increased 2-fold or more from the day of the midcycle LH peak to the time of predicted ovulation (24-48 hour after the LH peak) in parallel with the rise in serum progesterone concentration.
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