1
|
Belcher DJ, Guitart M, Hain B, Kim HG, Waning D, Barreiro E, Nader GA. LP07 and LLC preclinical models of lung cancer induce divergent anabolic deficits and expression of pro-inflammatory effectors of muscle wasting. J Appl Physiol (1985) 2022; 133:1260-1272. [PMID: 36201324 PMCID: PMC9678411 DOI: 10.1152/japplphysiol.00246.2022] [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: 05/01/2022] [Revised: 09/12/2022] [Accepted: 09/29/2022] [Indexed: 11/22/2022] Open
Abstract
Preclinical models have been instrumental to elucidate the mechanisms underlying muscle wasting in lung cancer (LC). We investigated anabolic deficits and the expression of proinflammatory effectors of muscle wasting in the LP07 and Lewis lung carcinoma (LLC) tumor models. Tumor growth resulted in significant weakness in LP07 but not in LLC mice despite similar reductions in gastrocnemius muscle mass in both models. The LP07 tumors caused a reduction in ribosomal (r)RNA and a decrease in rRNA gene (rDNA) transcription elongation, whereas no changes in ribosomal capacity were evident in LLC tumor-bearing mice. Expression of RNA Polymerase I (Pol I) elongation-associated subunits Polr2f, PAF53, and Znrd1 mRNAs was significantly elevated in the LP07 model, whereas Pol I elongation-related factors FACT and Spt4/5 mRNAs were elevated in the LLC mice. Reductions in RPS6 and 4E-BP1 phosphorylation were similar in both models but were independent of mTOR phosphorylation in LP07 mice. Muscle inflammation was also tumor-specific, IL-6 and TNF-α mRNA increased with LLC tumors, and upregulation of NLRP3 mRNA was independent of tumor type. In summary, although both models caused muscle wasting, only the LP07 model displayed muscle weakness with reductions in ribosomal capacity. Intracellular signaling diverged at the mTOR level with similar reductions in RPS6 and 4E-BP1 phosphorylation regardless of tumor type. The increase in proinflammatory factors was more pronounced in the LLC model. Our results demonstrate novel divergent anabolic deficits and expression of proinflammatory effectors of muscle wasting in the LP07 and LLC preclinical models of lung cancer.NEW & NOTEWORTHY We provide novel data demonstrating significant divergence in anabolic deficits and the expression of proinflammatory effectors of muscle wasting consequent to different lung-derived tumors.
Collapse
Affiliation(s)
- Daniel J Belcher
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania
| | - Maria Guitart
- Pulmonology Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Barcelona, Spain
- Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Network of Excellence in Lung Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
| | - Brian Hain
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | - Hyo-Gun Kim
- Department of Kinesiology, The Pennsylvania State University, University Park, Pennsylvania
| | - David Waning
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
- Penn State Cancer Institute, The Pennsylvania State University, University Park, Pennsylvania
| | - Esther Barreiro
- Pulmonology Department-Muscle Wasting and Cachexia in Chronic Respiratory Diseases and Lung Cancer Research Group, IMIM-Hospital del Mar, Barcelona, Spain
- Department of Medicine and Life Sciences (MELIS), Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Network of Excellence in Lung Diseases (CIBERES), Instituto de Salud Carlos III (ISCIII), Barcelona, Spain
| | - Gustavo A Nader
- Huck Institutes of the Life Sciences, The Pennsylvania State University, University Park, Pennsylvania
- Department of Kinesiology, The Pennsylvania State University, University Park, Pennsylvania
- Penn State Cancer Institute, The Pennsylvania State University, University Park, Pennsylvania
| |
Collapse
|
2
|
Wilcox‐Hagerty JR, Xu H, Hain B, Waning D. TGFβ Induces Changes in Mitochondrial Homeostasis in Skeletal Muscle of Mice with Bone Metastases. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l7620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Haifang Xu
- The Pennsylvania State University College of MedicineHersheyPA
| | - Brian Hain
- Cellular and Molecular PhysiologyThe Pennsylvania State University College of MedicineHersheyPA
| | - David Waning
- Cellular and Molecular PhysiologyThe Pennsylvania State University College of MedicineHersheyPA
| |
Collapse
|
3
|
Belcher DJ, Rosa Guitart M, Hain B, Kim H, Waning D, Barreiro E, Nader GA. The LP07 and LLC pre‐clinical models of lung cancer present divergent anabolic deficits and expression of pro‐inflammatory effectors of muscle wasting. FASEB J 2022. [DOI: 10.1096/fasebj.2022.36.s1.l7889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Daniel J. Belcher
- Integrative and Biomedical PhysiologyPenn State UniversityUniversity ParkPA
| | | | - Brian Hain
- Department of Cellular and Molecular PhysiologyPenn State UniversityHersheyPA
| | - Hyo‐Gun Kim
- KinesiologyPenn State UniversityUniversity ParkPA
| | - David Waning
- Department of Cellular and Molecular PhysiologyPenn State UniversityHersheyPA
| | | | | |
Collapse
|
4
|
Stauch CM, Fanburg-Smith JC, Walley KC, King JL, Murie B, Kim M, Koroneos Z, Waning D, Elfar JC, Aynardi MC. Animal model detects early pathologic changes of Charcot neuropathic arthropathy. Ann Diagn Pathol 2022; 56:151878. [PMID: 34953234 DOI: 10.1016/j.anndiagpath.2021.151878] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 12/09/2021] [Indexed: 11/01/2022]
Abstract
Charcot neuropathic arthropathy is a degenerative, debilitating disease that affects the foot and ankle in patients with diabetes and peripheral neuropathy, often resulting in destruction, amputation. Proposed etiologies include neurotraumatic, inflammatory, and neurovascular. There has been no previous animal model for Charcot. This study proposes a novel rodent model of induced neuropathic arthropathy to understand the earliest progressive pathologic changes of human Charcot. High-fat-diet-induced obese (DIO) Wild-type C57BL/6J mice (n = 8, diabetic) and age-matched low-fat-diet controls (n = 6) were run on an inclined high-intensity treadmill protocol four times per week for 7 weeks to induce mechanical neurotrauma to the hind-paw, creating Charcot neuropathic arthropathy. Sensory function and radiologic correlation were assessed; animals were sacrificed to evaluate hindpaw soft tissue and joint pathology. With this model, Charcot-DIO mice reveals early pathologic features of Charcot neuropathic arthropathy, a distinctive subchondral microfracture callus, perichondral/subchondral osseous hypertrophy/osteosclerosis, that precedes fragmentation/destruction observed in human surgical pathology specimens. There is intraneural vacuolar-myxoid change and arteriolosclerosis. The DIO mice demonstrated significant hot plate sensory neuropathy compared (P < 0.01), radiographic collapse of the longitudinal arch in DIO mice (P < 0.001), and diminished bone density in DIO, compared with normal controls. Despite exercise, high-fat-DIO mice increased body weight and percentage of body fat (P < 0.001). This murine model of diet-induced obesity and peripheral neuropathy, combined with repetitive mechanical trauma, simulates the earliest changes observed in human Charcot neuropathic arthropathy, of vasculopathic-neuropathic etiology. An understanding of early pathophysiology may assist early diagnosis and intervention and reduce patient morbidity and mortality in Charcot neuropathic arthropathy.
Collapse
Affiliation(s)
- Christopher M Stauch
- Penn State College of Medicine, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - Julie C Fanburg-Smith
- Penn State College of Medicine, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Pathology, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Pediatrics, Milton S. Hershey Medical Center in Hershey, PA, United States of America.
| | - Kempland C Walley
- Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - Jesse L King
- Penn State College of Medicine, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - Benjamin Murie
- Department of Pathology, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - Morgan Kim
- Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - Zachary Koroneos
- Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - David Waning
- Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - John C Elfar
- Penn State College of Medicine, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| | - Michael C Aynardi
- Penn State College of Medicine, Milton S. Hershey Medical Center in Hershey, PA, United States of America; Department of Orthopedics, Milton S. Hershey Medical Center in Hershey, PA, United States of America
| |
Collapse
|