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Kobak KA, Batushansky A, Jopkiewicz A, Peelor FF, Kinter MT, Miller BF, Griffin TM. Effect of biological sex and short-term high-fat diet on cellular proliferation, ribosomal biogenesis, and targeted protein abundance in murine articular cartilage. OSTEOARTHRITIS AND CARTILAGE OPEN 2024; 6:100495. [PMID: 39040627 PMCID: PMC11260562 DOI: 10.1016/j.ocarto.2024.100495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 06/13/2024] [Indexed: 07/24/2024] Open
Abstract
Objective To identify factors contributing to sex-differences in OA risk by evaluating the short-term effect of high-fat (HF) diet on sex-specific changes in cartilage cell proliferation, ribosomal biogenesis, and targeted extra-cellular and cellular protein abundance. Materials and methods Knee cartilage was harvested to the subchondral bone from 20-week-old female and male C57BL/6J mice fed a low-fat or HF diet for 4 weeks and labeled with deuterium oxide for 1, 3, 5, 7, 15, or 21 days. Deuterium enrichment was quantified in isolated DNA and RNA to measure cell proliferation and ribosomal biogenesis, respectively. Protein concentration was measured using targeted high resolution accurate mass spectrometry. Results HF diet increased the maximal deuterium incorporation into DNA from approximately 40 to 50%, albeit at a slower rate. These findings, which were magnified in female versus male mice, indicate a greater number of proliferating cells with longer half-lives under HF diet conditions. HF diet caused distinct sex-dependent effects on deuterium incorporation into RNA, increasing the fraction of ribosomes undergoing biogenesis in male mice and doubling the rate of ribosome biogenesis in female mice. HF diet altered cartilage protein abundance similarly in both sexes, except for matrilin-3, which was more abundant in HF versus LF conditions in female mice only. Overall, HF diet treatment had a stronger effect than sex on cartilage protein abundance, with most changes involving extracellular matrix and matrix-associated proteins. Conclusions Short-term HF diet broadly altered cartilage matrix protein abundance, while sex-dependent effects primarily involved differences in cell proliferation and ribosomal biogenesis.
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Affiliation(s)
- Kamil A. Kobak
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Albert Batushansky
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Anita Jopkiewicz
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Frederick F. Peelor
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Michael T. Kinter
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
| | - Benjamin F. Miller
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
- Veterans Affairs Medical Center, Oklahoma City, OK, 73104, USA
| | - Timothy M. Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, USA
- Oklahoma Center for Geroscience and Healthy Brain Aging, Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA
- Veterans Affairs Medical Center, Oklahoma City, OK, 73104, USA
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Xiong T, Huang S, Wang X, Shi Y, He J, Yuan Y, Wang R, Gu H, Liu L. n-3 polyunsaturated fatty acids alleviate the progression of obesity-related osteoarthritis and protect cartilage through inhibiting the HMGB1-RAGE/TLR4 signaling pathway. Int Immunopharmacol 2024; 128:111498. [PMID: 38218011 DOI: 10.1016/j.intimp.2024.111498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/02/2024] [Accepted: 01/03/2024] [Indexed: 01/15/2024]
Abstract
Osteoarthritis (OA) is a common joint degenerative disease. There is currently no cure for OA. Dietary fatty acids have potential value in the prevention and treatment of OA. n-3 polyunsaturated fatty acids (PUFAs) have anti-inflammatory effects, but their anti-OA mechanism remains unclear. High-mobility group box 1 (HMGB1) promotes inflammation and participates the pathogenesis of OA. The purpose of this study was to investigate the protective effect of n-3 PUFAs on cartilage and whether n-3 PUFAs could exert an anti-OA effect through inhibiting HMGB1-RAGE/TLR4 signaling pathway. We established an obesity-related post-traumatic OA mice model and an in vitro study was conducted to explore the regulatory mechanism of n-3 PUFAs on HMGB1 and its signal pathway against OA. We found that diet rich in n-3 PUFAs alleviated OA-like lesions of articular cartilage with the decrease of HMGB1-RAGE/TLR4 signaling protein in mice. In SW1353 cells, DHA significantly reduced the expression of HMGB1-RAGE/TLR4 signaling protein which was up-regulated by IL-1β stimulation. HMGB1 overexpression reversed the inhibitory effect of DHA on HMGB1-RAGE/TLR4 signaling pathway. The activation of SIRT1 may participate the inhibitory effect of DHA on HMGB1-RAGE/TLR4 signaling pathway. In conclusion, n-3 PUFAs could attenuate the progression of obesity-related OA and exert protective effect on cartilage by inhibiting HMGB1-RAGE/TLR4 signaling pathway, which may be associated with the activation of SIRT1. Dietary n-3 PUFAs supplements can be considered as a potential therapeutic substance for OA.
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Affiliation(s)
- Tao Xiong
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Shiqi Huang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Xinjuan Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Yu Shi
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Jianyi He
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Ye Yuan
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Ruiqi Wang
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
| | - Hailun Gu
- Department of Orthopedics, Shengjing Hospital, China Medical University, 110004, PR China.
| | - Li Liu
- Key Laboratory of Environmental Stress and Chronic Disease Control & Prevention (China Medical University), Ministry of Education, Shenyang, Liaoning 110122, PR China; Department of Nutrition and Food Hygiene, School of Public Health, China Medical University, 110122, PR China.
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3
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Warmink K, Rios JL, van Valkengoed DR, Vinod P, Korthagen NM, Weinans H. Effects of different obesogenic diets on joint integrity, inflammation and intermediate monocyte levels in a rat groove model of osteoarthritis. Front Physiol 2023; 14:1211972. [PMID: 37520829 PMCID: PMC10372350 DOI: 10.3389/fphys.2023.1211972] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Accepted: 07/05/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction: Obesogenic diets aggravate osteoarthritis (OA) by inducing low-grade systemic inflammation, and diet composition may affect OA severity. Here, we investigated the effect of diet on joint damage and inflammation in an OA rat model. Methods: Wistar-Han rats (n = 24) were fed a chow, a high-fat (HF) diet, or a high-fat/high-sucrose (HFS) for 24 weeks. OA was induced unilaterally 12 weeks after the diet onset by groove surgery, and compared to sham surgery or no surgical intervention (contralateral limb). Knee OA severity was determined by OARSI histopathology scoring system. At several timepoints monocyte populations were measured using flow cytometry, and joint macrophage response was determined via CD68 immunohistochemistry staining. Results: Groove surgery combined with HF or HFS diet resulted in higher OARSI scores, and both HF and HFS diet showed increased circulating intermediate monocytes compared to chow fed rats. Additionally, in the HFS group, minimal damage by sham surgery resulted in an increased OARSI score. HFS diet resulted in the largest metabolic dysregulation, synovial inflammation and increased CD68 staining in tibia epiphysis bone marrow. Conclusion: Obesogenic diets resulted in aggravated OA development, even with very minimal joint damage when combined with the sucrose/fat-rich diet. We hypothesize that diet-induced low-grade inflammation primes monocytes and macrophages in the blood, bone marrow, and synovium, resulting in joint damage when triggered by groove OA inducing surgery. When the metabolic dysregulation is larger, as observed here for the HFS diet, the surgical trigger required to induce joint damage may be smaller, or even redundant.
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Affiliation(s)
- K. Warmink
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - J. L. Rios
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - D. R. van Valkengoed
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - P. Vinod
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
| | - N. M. Korthagen
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
- Department of Equine Sciences, Utrecht University, Utrecht, Netherlands
| | - H. Weinans
- Department of Orthopedics, University Medical Center Utrecht (UMCU), Utrecht, Netherlands
- Department of Biomechanical Engineering, TU Delft, Delft, Netherlands
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Zhu S, Liu H, Davis T, Willis CR, Basu R, Witzigreuter L, Bell S, Szewczyk N, Lotz MK, Hill M, Fajardo RJ, O’Connor PM, Berryman DE, Kopchick JJ. Promotion of Joint Degeneration and Chondrocyte Metabolic Dysfunction by Excessive Growth Hormone in Mice. Arthritis Rheumatol 2023; 75:1139-1151. [PMID: 36762426 PMCID: PMC10313765 DOI: 10.1002/art.42470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 01/25/2023] [Accepted: 02/02/2023] [Indexed: 02/11/2023]
Abstract
OBJECTIVE Many patients with acromegaly, a hormonal disorder with excessive growth hormone (GH) production, report pain in joints. We undertook this study to characterize the joint pathology of mice with overexpression of bovine GH (bGH) or a GH receptor antagonist (GHa) and to investigate the effect of GH on regulation of chondrocyte cellular metabolism. METHODS Knee joints from mice overexpressing bGH or GHa and wild-type (WT) control mice were examined using histology and micro-computed tomography for osteoarthritic (OA) pathologies. Additionally, cartilage from bGH mice was used for metabolomics analysis. Mouse primary chondrocytes from bGH and WT mice, with or without pegvisomant treatment, were used for quantitative polymerase chain reaction and Seahorse respirometry analyses. RESULTS Both male and female bGH mice at ~13 months of age had increased knee joint degeneration, which was characterized by loss of cartilage structure, expansion of hypertrophic chondrocytes, synovitis, and subchondral plate thinning. The joint pathologies were also demonstrated by significantly higher Osteoarthritis Research Society International and Mankin scores in bGH mice compared to WT control mice. Metabolomics analysis revealed changes in a wide range of metabolic pathways in bGH mice, including beta-alanine metabolism, tryptophan metabolism, lysine degradation, and ascorbate and aldarate metabolism. Also, bGH chondrocytes up-regulated fatty acid oxidation and increased expression of Col10a. Joints of GHa mice were remarkably protected from developing age-associated joint degeneration, with smooth articular joint surface. CONCLUSION This study showed that an excessive amount of GH promotes joint degeneration in mice, which was associated with chondrocyte metabolic dysfunction and hypertrophic changes, whereas antagonizing GH action through a GHa protects mice from OA development.
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Affiliation(s)
- Shouan Zhu
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA
- Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
| | - Huanhuan Liu
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA
- Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
| | - Trent Davis
- Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
| | - Craig R.G. Willis
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA
- Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
- School of Chemistry and Biosciences, Faculty of Life Sciences, University of Bradford, Bradford, UK
| | - Reetobrata Basu
- Edison Biotechnology Institute, Ohio University, OH, 45701, USA
| | - Luke Witzigreuter
- Department of Biological Sciences, Ohio University, Athens, OH, 45701, USA
| | - Stephen Bell
- Edison Biotechnology Institute, Ohio University, OH, 45701, USA
| | - Nathaniel Szewczyk
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA
- Ohio Musculoskeletal and Neurological Institute (OMNI), Ohio University, OH, 45701, USA
| | - Martin K. Lotz
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Marcheta Hill
- School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX, 78209, USA
| | - Roberto J. Fajardo
- School of Osteopathic Medicine, University of the Incarnate Word, San Antonio, TX, 78209, USA
| | | | - Darlene E. Berryman
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA
- Edison Biotechnology Institute, Ohio University, OH, 45701, USA
- Diabetes Institute, Ohio University, OH, 45701, USA
| | - John J. Kopchick
- Department of Biomedical Sciences, Ohio University, OH, 45701, USA
- Edison Biotechnology Institute, Ohio University, OH, 45701, USA
- Diabetes Institute, Ohio University, OH, 45701, USA
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5
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Fu Y, Batushansky A, Kinter M, Huebner JL, Kraus VB, Griffin TM. Effects of Leptin and Body Weight on Inflammation and Knee Osteoarthritis Phenotypes in Female Rats. JBMR Plus 2023; 7:e10754. [PMID: 37457883 PMCID: PMC10339097 DOI: 10.1002/jbm4.10754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/22/2023] [Accepted: 04/13/2023] [Indexed: 07/18/2023] Open
Abstract
Leptin is a proinflammatory adipokine that contributes to obesity-associated osteoarthritis (OA), especially in women. However, the extent to which leptin causes knee OA separate from the effect of increased body weight is not clear. We hypothesized that leptin is necessary to induce knee OA in obese female rats but not sufficient to induce knee OA in lean rats lacking systemic metabolic inflammation. The effect of obesity without leptin signaling was modeled by comparing female lean Zucker rats to pair fed obese Zucker rats, which possess mutant fa alleles of the leptin receptor gene. The effect of leptin without obesity was modeled in female F344BN F1 hybrid rats by systemically administering recombinant rat leptin versus saline for 23 weeks via osmotic pumps. Primary OA outcomes included cartilage histopathology and subchondral bone micro-computed tomography. Secondary outcomes included targeted cartilage proteomics, serum inflammation, and synovial fluid inflammation following an acute intra-articular challenge with interleukin-1β (IL-1β). Compared to lean Zucker rats, obese Zucker rats developed more severe tibial osteophytes and focal cartilage lesions in the medial tibial plateau, with modest changes in proximal tibial epiphysis trabecular bone structure. In contrast, exogenous leptin treatment, which increased plasma leptin sixfold without altering body weight, caused mild generalized cartilage fibrillation and reduced Safranin O staining compared to vehicle-treated animals. Leptin also significantly increased subchondral and trabecular bone volume and bone mineral density in the proximal tibia. Cartilage metabolic and antioxidant enzyme protein levels were substantially elevated with leptin deficiency and minimally suppressed with leptin treatment. In contrast, leptin treatment induced greater changes in systemic and local inflammatory mediators compared to leptin receptor deficiency, including reduced serum IL-6 and increased synovial fluid IL-1β. In conclusion, rat models that separately elevate leptin or body weight develop distinct OA-associated phenotypes, revealing how obesity increases OA pathology through both leptin-dependent and independent pathways. © 2023 The Authors. JBMR Plus published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research.
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Affiliation(s)
- Yao Fu
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
| | - Albert Batushansky
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
| | - Michael Kinter
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
- Oklahoma Center for GeroscienceUniversity of Oklahoma Health Sciences CenterOklahoma CityOklahomaUSA
| | - Janet L. Huebner
- Duke Molecular Physiology InstituteDuke University, School of Medicine, Duke UniversityDurhamNorth CarolinaUSA
| | - Virginia B. Kraus
- Duke Molecular Physiology InstituteDuke University, School of Medicine, Duke UniversityDurhamNorth CarolinaUSA
- Division of Rheumatology, Department of MedicineDuke University, School of Medicine, Duke UniversityDurhamNorth CarolinaUSA
| | - Timothy M. Griffin
- Aging and Metabolism Research ProgramOklahoma Medical Research FoundationOklahoma CityOklahomaUSA
- Oklahoma Center for GeroscienceUniversity of Oklahoma Health Sciences CenterOklahoma CityOklahomaUSA
- Department of Biochemistry and Molecular BiologyUniversity of Oklahoma Health Sciences CenterOklahoma CityOklahomaUSA
- Veterans Affairs Medical CenterOklahoma CityOklahomaUSA
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6
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Floramo JS, Molchanov V, Liu H, Liu Y, Craig SEL, Yang T. An Integrated View of Stressors as Causative Agents in OA Pathogenesis. Biomolecules 2023; 13:biom13050721. [PMID: 37238590 DOI: 10.3390/biom13050721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 04/14/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Cells in the body are exposed to dynamic external and internal environments, many of which cause cell damage. The cell's response to this damage, broadly called the stress response, is meant to promote survival and repair or remove damage. However, not all damage can be repaired, and sometimes, even worse, the stress response can overtax the system itself, further aggravating homeostasis and leading to its loss. Aging phenotypes are considered a manifestation of accumulated cellular damage and defective repair. This is particularly apparent in the primary cell type of the articular joint, the articular chondrocytes. Articular chondrocytes are constantly facing the challenge of stressors, including mechanical overloading, oxidation, DNA damage, proteostatic stress, and metabolic imbalance. The consequence of the accumulation of stress on articular chondrocytes is aberrant mitogenesis and differentiation, defective extracellular matrix production and turnover, cellular senescence, and cell death. The most severe form of stress-induced chondrocyte dysfunction in the joints is osteoarthritis (OA). Here, we summarize studies on the cellular effects of stressors on articular chondrocytes and demonstrate that the molecular effectors of the stress pathways connect to amplify articular joint dysfunction and OA development.
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Affiliation(s)
- Joseph S Floramo
- Laboratory of Skeletal Biology, Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave NE, Grand Rapids, MI 49503, USA
| | - Vladimir Molchanov
- Laboratory of Skeletal Biology, Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave NE, Grand Rapids, MI 49503, USA
| | - Huadie Liu
- Laboratory of Skeletal Biology, Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave NE, Grand Rapids, MI 49503, USA
| | - Ye Liu
- Laboratory of Skeletal Biology, Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave NE, Grand Rapids, MI 49503, USA
| | - Sonya E L Craig
- Laboratory of Skeletal Biology, Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave NE, Grand Rapids, MI 49503, USA
| | - Tao Yang
- Laboratory of Skeletal Biology, Department of Cell Biology, Van Andel Institute, 333 Bostwick Ave NE, Grand Rapids, MI 49503, USA
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7
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Min Y, Ahn D, Truong TMT, Kim M, Heo Y, Jee Y, Son YO, Kang I. Excessive sucrose exacerbates high fat diet-induced hepatic inflammation and fibrosis promoting osteoarthritis in mice model. J Nutr Biochem 2023; 112:109223. [PMID: 36410638 DOI: 10.1016/j.jnutbio.2022.109223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 11/21/2022]
Abstract
Osteoarthritis (OA) is marked by chronic low-grade systemic inflammation and cartilage destruction. High fat diet causes obesity and increases the risk of knee OA-development. However, the impact of high dietary sugar intake on OA pathogenesis has not been elucidated yet. Therefore, we investigated the effects of a high-fat and high-sucrose (HF+HS) diet in experimental OA mouse models. Eight-week-old male C57BL/6J mice were fed a standard chow (n=6), high-fat (HF) (n=5), or HF+HS (n=7) diets for 12 weeks; thereafter, the mice underwent surgical destabilization of the medial meniscus (DMM) and received the same experimental diets for an additional 8 weeks. The pathogenesis of knee OA, obesogenic parameters, and inflammation levels in the liver and adipose tissue were investigated. HF+HS diet induced severe cartilage erosion with osteophyte development and subchondral bone plate thickening, indicating that HF+HS diet exacerbated OA. Despite marginal differences in metabolic parameters, hepatic free cholesterol accumulation increased in mice with DMM-induced OA fed on HF+HS diet than in those fed HF diet. Notably, the levels of inflammatory cytokines and fibrosis markers were greater in the livers of mice with DMM-induced OA, fed on HF+HS diet than those in the control group. However, adipose tissue remodeling was not affected by the HF+HS diet. These findings indicate that excess sucrose intake along with a HF diet triggers hepatic inflammation and fibrosis, thereby, contributing to OA pathogenesis.
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Affiliation(s)
- Yunhui Min
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea
| | - Dohyun Ahn
- Department of Food Science and Nutrition, Jeju National University Jeju Special Self-Governing Province, Republic of Korea
| | - Thi My Tien Truong
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea
| | - Mangeun Kim
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea
| | - Yunji Heo
- Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea
| | - Youngheun Jee
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea; Department of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea
| | - Young-Ok Son
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea; Department of Animal Biotechnology, Faculty of Biotechnology, College of Applied Life Sciences, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea; Bio-Health Materials Core-Facility Center, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea; Practical Translational Research Center, Jeju National University, Jeju Special Self-Governing Province,, Republic of Korea.
| | - Inhae Kang
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju Special Self-Governing Province, Republic of Korea; Department of Food Science and Nutrition, Jeju National University Jeju Special Self-Governing Province, Republic of Korea.
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8
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Zhu S, Donovan EL, Makosa D, Mehta-D'souza P, Jopkiewicz A, Batushansky A, Cortassa D, Simmons AD, Lopes EBP, Kinter M, Griffin TM. Sirt3 Promotes Chondrogenesis, Chondrocyte Mitochondrial Respiration and the Development of High-Fat Diet-Induced Osteoarthritis in Mice. J Bone Miner Res 2022; 37:2531-2547. [PMID: 36214465 PMCID: PMC10091721 DOI: 10.1002/jbmr.4721] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 09/09/2022] [Accepted: 10/06/2022] [Indexed: 12/31/2022]
Abstract
Understanding how obesity-induced metabolic stress contributes to synovial joint tissue damage is difficult because of the complex role of metabolism in joint development, maintenance, and repair. Chondrocyte mitochondrial dysfunction is implicated in osteoarthritis (OA) pathology, which motivated us to study the mitochondrial deacetylase enzyme sirtuin 3 (Sirt3). We hypothesized that combining high-fat-diet (HFD)-induced obesity and cartilage Sirt3 loss at a young age would impair chondrocyte mitochondrial function, leading to cellular stress and accelerated OA. Instead, we unexpectedly found that depleting cartilage Sirt3 at 5 weeks of age using Sirt3-flox and Acan-CreERT2 mice protected against the development of cartilage degeneration and synovial hyperplasia following 20 weeks of HFD. This protection was associated with increased cartilage glycolysis proteins and reduced mitochondrial fatty acid metabolism proteins. Seahorse-based assays supported a mitochondrial-to-glycolytic shift in chondrocyte metabolism with Sirt3 deletion. Additional studies with primary murine juvenile chondrocytes under hypoxic and inflammatory conditions showed an increased expression of hypoxia-inducible factor (HIF-1) target genes with Sirt3 deletion. However, Sirt3 deletion impaired chondrogenesis using a murine bone marrow stem/stromal cell pellet model, suggesting a context-dependent role of Sirt3 in cartilage homeostasis. Overall, our data indicate that Sirt3 coordinates HFD-induced changes in mature chondrocyte metabolism that promote OA. © 2022 The Authors. Journal of Bone and Mineral Research published by Wiley Periodicals LLC on behalf of American Society for Bone and Mineral Research (ASBMR).
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Affiliation(s)
- Shouan Zhu
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Elise L Donovan
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Dawid Makosa
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Padmaja Mehta-D'souza
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Anita Jopkiewicz
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Albert Batushansky
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Dominic Cortassa
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Aaron D Simmons
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | | | - Michael Kinter
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
| | - Timothy M Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA.,Department of Biochemistry and Molecular Biology, Department of Physiology, Oklahoma Center for Geroscience, University of Oklahoma Health Sciences Center, Oklahoma City, USA.,Biomedical Laboratory Research and Development, Veterans Affairs Medical Center, Oklahoma City, USA
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9
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Nedunchezhiyan U, Varughese I, Sun AR, Wu X, Crawford R, Prasadam I. Obesity, Inflammation, and Immune System in Osteoarthritis. Front Immunol 2022; 13:907750. [PMID: 35860250 PMCID: PMC9289681 DOI: 10.3389/fimmu.2022.907750] [Citation(s) in RCA: 98] [Impact Index Per Article: 49.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 06/10/2022] [Indexed: 12/12/2022] Open
Abstract
Obesity remains the most important risk factor for the incidence and progression of osteoarthritis (OA). The leading cause of OA was believed to be overloading the joints due to excess weight which in turn leads to the destruction of articular cartilage. However, recent studies have proved otherwise, various other factors like adipose deposition, insulin resistance, and especially the improper coordination of innate and adaptive immune responses may lead to the initiation and progression of obesity-associated OA. It is becoming increasingly evident that multiple inflammatory cells are recruited into the synovial joint that serves an important role in pathological changes in the synovial joint. Polarization of macrophages and macrophage-produced mediators are extensively studied and linked to the inflammatory and destructive responses in the OA synovium and cartilage. However, the role of other major innate immune cells such as neutrophils, eosinophils, and dendritic cells in the pathogenesis of OA has not been fully evaluated. Although cells of the adaptive immune system contribute to the pathogenesis of obesity-induced OA is still under exploration, a quantity of literature indicates OA synovium has an enriched population of T cells and B cells compared with healthy control. The interplay between a variety of immune cells and other cells that reside in the articular joints may constitute a vicious cycle, leading to pathological changes of the articular joint in obese individuals. This review addresses obesity and the role of all the immune cells that are involved in OA and summarised animal studies and human trials and knowledge gaps between the studies have been highlighted. The review also touches base on the interventions currently in clinical trials, different stages of the testing, and their shortcomings are also discussed to understand the future direction which could help in understanding the multifactorial aspects of OA where inflammation has a significant function.
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Affiliation(s)
- Udhaya Nedunchezhiyan
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Ibin Varughese
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Antonia RuJia Sun
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
| | - Xiaoxin Wu
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- Department of Orthopedic Surgery, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Ross Crawford
- Orthopedic Department, The Prince Charles Hospital, Brisbane, QLD, Australia
| | - Indira Prasadam
- Centre for Biomedical Technologies, Faculty of Engineering, Queensland University of Technology, Brisbane, QLD, Australia
- *Correspondence: Indira Prasadam,
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10
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Li Z, Lin Z, Liu S, Yagi H, Zhang X, Yocum L, Romero‐Lopez M, Rhee C, Makarcyzk MJ, Yu I, Li EN, Fritch MR, Gao Q, Goh KB, O'Donnell B, Hao T, Alexander PG, Mahadik B, Fisher JP, Goodman SB, Bunnell BA, Tuan RS, Lin H. Human Mesenchymal Stem Cell-Derived Miniature Joint System for Disease Modeling and Drug Testing. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2105909. [PMID: 35436042 PMCID: PMC9313499 DOI: 10.1002/advs.202105909] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 04/04/2022] [Indexed: 05/12/2023]
Abstract
Diseases of the knee joint such as osteoarthritis (OA) affect all joint elements. An in vitro human cell-derived microphysiological system capable of simulating intraarticular tissue crosstalk is desirable for studying etiologies/pathogenesis of joint diseases and testing potential therapeutics. Herein, a human mesenchymal stem cell-derived miniature joint system (miniJoint) is generated, in which engineered osteochondral complex, synovial-like fibrous tissue, and adipose tissue are integrated into a microfluidics-enabled bioreactor. This novel design facilitates different tissues communicating while still maintaining their respective phenotypes. The miniJoint exhibits physiologically relevant changes when exposed to interleukin-1β mediated inflammation, which are similar to observations in joint diseases in humans. The potential of the miniJoint in predicting in vivo efficacy of drug treatment is confirmed by testing the "therapeutic effect" of the nonsteroidal anti-inflammatory drug, naproxen, as well as four other potential disease-modifying OA drugs. The data demonstrate that the miniJoint recapitulates complex tissue interactions, thus providing a robust organ chip model for the study of joint pathology and the development of novel therapeutic interventions.
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Affiliation(s)
- Zhong Li
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Zixuan Lin
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Silvia Liu
- Department of PathologyUniversity of Pittsburgh School of MedicinePittsburghPA15261USA
| | - Haruyo Yagi
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Xiurui Zhang
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Lauren Yocum
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | | | - Claire Rhee
- Department of Orthopaedic SurgeryStanford UniversityStanfordCA94305USA
| | - Meagan J. Makarcyzk
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
- Department of BioengineeringUniversity of Pittsburgh Swanson School of EngineeringPittsburghPA15260USA
| | - Ilhan Yu
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Eileen N. Li
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
- Department of BioengineeringUniversity of Pittsburgh Swanson School of EngineeringPittsburghPA15260USA
| | - Madalyn R. Fritch
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Qi Gao
- Department of Orthopaedic SurgeryStanford UniversityStanfordCA94305USA
| | - Kek Boon Goh
- Institute of PhysicsUniversity of FreiburgFreiburg79104Germany
- School of EngineeringMonash University MalaysiaSelangor47500Malaysia
| | - Benjamen O'Donnell
- Center for Stem Cell Research and Regenerative MedicineTulane University School of MedicineOrleansLA70112USA
| | - Tingjun Hao
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Peter G. Alexander
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
| | - Bhushan Mahadik
- Fischell Department of BioengineeringUniversity of MarylandCollege ParkMD20742USA
| | - John P. Fisher
- Fischell Department of BioengineeringUniversity of MarylandCollege ParkMD20742USA
| | - Stuart B. Goodman
- Department of Orthopaedic SurgeryStanford UniversityStanfordCA94305USA
| | - Bruce A. Bunnell
- Center for Stem Cell Research and Regenerative MedicineTulane University School of MedicineOrleansLA70112USA
- Present address:
Department of Microbiology, Immunology, and GeneticsUniversity of North Texas Health Science CenterFort WorthTX76107USA
| | - Rocky S. Tuan
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
- Department of BioengineeringUniversity of Pittsburgh Swanson School of EngineeringPittsburghPA15260USA
- McGowan Institute for Regenerative MedicineUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
- Present address:
The Chinese University of Hong KongShatinHong Kong SAR999077China
| | - Hang Lin
- Center for Cellular and Molecular EngineeringDepartment of Orthopaedic SurgeryUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
- Department of BioengineeringUniversity of Pittsburgh Swanson School of EngineeringPittsburghPA15260USA
- McGowan Institute for Regenerative MedicineUniversity of Pittsburgh School of MedicinePittsburghPA15219USA
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11
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Hahn AK, Batushansky A, Rawle RA, Prado Lopes EB, June RK, Griffin TM. Effects of long-term exercise and a high-fat diet on synovial fluid metabolomics and joint structural phenotypes in mice: an integrated network analysis. Osteoarthritis Cartilage 2021; 29:1549-1563. [PMID: 34461226 PMCID: PMC8542629 DOI: 10.1016/j.joca.2021.08.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 07/18/2021] [Accepted: 08/04/2021] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To explore how systemic factors that modify knee osteoarthritis risk are connected to 'whole-joint' structural changes by evaluating the effects of high-fat diet and wheel running exercise on synovial fluid (SF) metabolomics. METHODS Male mice were fed a defined control or high-fat (60% kcal fat) diet from 6 to 52 weeks of age, and half the animals were housed with running wheels from 26 to 52 weeks of age (n = 9-13 per group). Joint tissue structure and osteoarthritis pathology were evaluated by histology and micro-computed tomography. Systemic metabolic and inflammatory changes were evaluated by body composition, glucose tolerance testing, and serum biomarkers. SF metabolites were analyzed by high performance-liquid chromatography mass spectrometry. We built correlation-based network models to evaluate the connectivity between systemic and local metabolic biomarkers and osteoarthritis structural pathology within each experimental group. RESULTS High-fat diet caused moderate osteoarthritis, including cartilage pathology, synovitis and increased subchondral bone density. In contrast, voluntary exercise had a negligible effect on these joint structure components. 1,412 SF metabolite features were detected, with high-fat sedentary mice being the most distinct. Diet and activity uniquely altered SF metabolites attributed to amino acids, lipids, and steroids. Notably, high-fat diet increased network connections to systemic biomarkers such as interleukin-1β and glucose intolerance. In contrast, exercise increased local joint-level network connections, especially among subchondral bone features and SF metabolites. CONCLUSION Network mapping showed that obesity strengthened SF metabolite links to blood glucose and inflammation, whereas exercise strengthened SF metabolite links to subchondral bone structure.
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Affiliation(s)
- A K Hahn
- Molecular Biosciences Program, Montana State University, Bozeman, MT, 59717, USA; Department of Cell Biology & Neuroscience, Montana State University, Bozeman, MT, 59717, USA; Department of Biological and Environmental Sciences, Carroll College, Helena, MT, 59625, USA
| | - A Batushansky
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK, 73104, USA
| | - R A Rawle
- Molecular Biosciences Program, Montana State University, Bozeman, MT, 59717, USA; Department of Microbiology & Immunology, Montana State University, Bozeman, MT, 59717, USA
| | - E B Prado Lopes
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK, 73104, USA
| | - R K June
- Molecular Biosciences Program, Montana State University, Bozeman, MT, 59717, USA; Department of Cell Biology & Neuroscience, Montana State University, Bozeman, MT, 59717, USA; Department of Mechanical & Industrial Engineering, Montana State University, Bozeman, USA.
| | - T M Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK, 73104, USA; Reynolds Oklahoma Center on Aging, Department of Biochemistry and Molecular Biology, Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, USA; Veterans Affairs Medical Center, Oklahoma City, OK, 73104, USA.
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12
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Gu LF, Chen JQ, Lin QY, Yang YZ. Roles of mitochondrial unfolded protein response in mammalian stem cells. World J Stem Cells 2021; 13:737-752. [PMID: 34367475 PMCID: PMC8316864 DOI: 10.4252/wjsc.v13.i7.737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 05/13/2021] [Accepted: 06/15/2021] [Indexed: 02/06/2023] Open
Abstract
The mitochondrial unfolded protein response (UPRmt) is an evolutionarily conserved adaptive mechanism for improving cell survival under mitochondrial stress. Under physiological and pathological conditions, the UPRmt is the key to maintaining intracellular homeostasis and proteostasis. Important roles of the UPRmt have been demonstrated in a variety of cell types and in cell development, metabolism, and immune processes. UPRmt dysfunction leads to a variety of pathologies, including cancer, inflammation, neurodegenerative disease, metabolic disease, and immune disease. Stem cells have a special ability to self-renew and differentiate into a variety of somatic cells and have been shown to exist in a variety of tissues. These cells are involved in development, tissue renewal, and some disease processes. Although the roles and regulatory mechanisms of the UPRmt in somatic cells have been widely reported, the roles of the UPRmt in stem cells are not fully understood. The roles and functions of the UPRmt depend on stem cell type. Therefore, this paper summarizes the potential significance of the UPRmt in embryonic stem cells, tissue stem cells, tumor stem cells, and induced pluripotent stem cells. The purpose of this review is to provide new insights into stem cell differentiation and tumor pathogenesis.
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Affiliation(s)
- Li-Fang Gu
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Jia-Qi Chen
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Qing-Yin Lin
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan 750004, Ningxia Hui Autonomous Region, China
| | - Yan-Zhou Yang
- Key Laboratory of Fertility Preservation and Maintenance, Ministry of Education, Key Laboratory of Reproduction and Genetics in Ningxia, Department of Histology and Embryology, School of Basic Medicine, Ningxia Medical University, Yinchuan 750001, Ningxia Hui Autonomous Region, China,
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13
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Kerr GJ, To B, White I, Millecamps M, Beier F, Grol MW, Stone LS, Séguin CA. Diet-induced obesity leads to behavioral indicators of pain preceding structural joint damage in wild-type mice. Arthritis Res Ther 2021; 23:93. [PMID: 33752736 PMCID: PMC7983381 DOI: 10.1186/s13075-021-02463-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Accepted: 02/22/2021] [Indexed: 02/06/2023] Open
Abstract
Introduction Obesity is one of the largest modifiable risk factors for the development of musculoskeletal diseases, including intervertebral disc (IVD) degeneration and back pain. Despite the clinical association, no studies have directly assessed whether diet-induced obesity accelerates IVD degeneration, back pain, or investigated the biological mediators underlying this association. In this study, we examine the effects of chronic consumption of a high-fat or high-fat/high-sugar (western) diet on the IVD, knee joint, and pain-associated outcomes. Methods Male C57BL/6N mice were randomized into one of three diet groups (chow control; high-fat; high-fat, high-sugar western diet) at 10 weeks of age and remained on the diet for 12, 24, or 40 weeks. At endpoint, animals were assessed for behavioral indicators of pain, joint tissues were collected for histological and molecular analysis, serum was collected to assess for markers of systemic inflammation, and IBA-1, GFAP, and CGRP were measured in spinal cords by immunohistochemistry. Results Animals fed obesogenic (high-fat or western) diets showed behavioral indicators of pain beginning at 12 weeks and persisting up to 40 weeks of diet consumption. Histological indicators of moderate joint degeneration were detected in the IVD and knee following 40 weeks on the experimental diets. Mice fed the obesogenic diets showed synovitis, increased intradiscal expression of inflammatory cytokines and circulating levels of MCP-1 compared to control. Linear regression modeling demonstrated that age and diet were both significant predictors of most pain-related behavioral outcomes, but not histopathological joint degeneration. Synovitis was associated with alterations in spontaneous activity. Conclusion Diet-induced obesity accelerates IVD degeneration and knee OA in mice; however, pain-related behaviors precede and are independent of histopathological structural damage. These findings contribute to understanding the source of obesity-related back pain and the contribution of structural IVD degeneration.
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Affiliation(s)
- Geoffrey J Kerr
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Bethia To
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Ian White
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Magali Millecamps
- Alan Edwards Centre for Research on Pain, Faculty of Dentistry, McGill University, Montreal, Quebec, Canada
| | - Frank Beier
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Matthew W Grol
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, N6A 5C1, Canada
| | - Laura S Stone
- Department of Anesthesiology, Faculty of Medicine, University of Minnesota, Minneapolis, Minnesota, USA
| | - Cheryle A Séguin
- Department of Physiology & Pharmacology, Schulich School of Medicine & Dentistry, Bone and Joint Institute, The University of Western Ontario, London, Ontario, N6A 5C1, Canada.
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14
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Makarczyk MJ, Gao Q, He Y, Li Z, Gold MS, Hochberg MC, Bunnell BA, Tuan RS, Goodman SB, Lin H. Current Models for Development of Disease-Modifying Osteoarthritis Drugs. Tissue Eng Part C Methods 2021; 27:124-138. [PMID: 33403944 PMCID: PMC8098772 DOI: 10.1089/ten.tec.2020.0309] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 12/18/2020] [Indexed: 12/12/2022] Open
Abstract
Osteoarthritis (OA) is a painful and disabling disease that affects millions of people worldwide. Symptom-alleviating treatments exist, although none with long-term efficacy. Furthermore, there are currently no disease-modifying OA drugs (DMOADs) with demonstrated efficacy in OA patients, which is, in part, attributed to a lack of full understanding of the pathogenesis of OA. The inability to translate findings from basic research to clinical applications also highlights the deficiencies in the available OA models at simulating the clinically relevant pathologies and responses to treatments in humans. In this review, the current status in the development of DMOADs will be first presented, with special attention to those in Phase II-IV clinical trials. Next, current in vitro, ex vivo, and in vivo OA models are summarized and the respective advantages and disadvantages of each are highlighted. Of note, the development and application of microphysiological or tissue-on-a-chip systems for modeling OA in humans are presented and the issues that need to be addressed in the future are discussed. Microphysiological systems should be given serious consideration for their inclusion in the DMOAD development pipeline, both for their ability to predict drug safety and efficacy in human clinical trials at present, as well as for their potential to serve as a test platform for personalized medicine. Impact statement At present, no disease-modifying osteoarthritis (OA) drugs (DMOADs) have been approved for widespread clinical use by regulatory bodies. The failure of developing effective DMOADs is likely owing to multiple factors, not the least of which are the intrinsic differences between the intact human knee joint and the preclinical models. This work summarizes the current OA models for the development of DMOADs, discusses the advantages/disadvantages of each, and then proposes future model development to aid in the discovery of effective and personalized DMOADs. The review also highlights the microphysiological systems, which are emerging as a new platform for drug development.
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Affiliation(s)
- Meagan J. Makarczyk
- Department of Orthopaedic Surgery, Center for Cellular and Molecular Engineering, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Qi Gao
- Department of Orthopaedic Surgery, Stanford University, California, USA
| | - Yuchen He
- Department of Orthopaedic Surgery, Center for Cellular and Molecular Engineering, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Zhong Li
- Department of Orthopaedic Surgery, Center for Cellular and Molecular Engineering, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Michael S. Gold
- Department of Neurobiology, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Mark C. Hochberg
- Department of Medicine and Epidemiology and Public Health, University of Maryland, Baltimore, Maryland, USA
| | - Bruce A. Bunnell
- Department of Microbiology, Immunology, and Genetics, University of North Texas Health Science Center, Fort Worth, Texas, USA
| | - Rocky S. Tuan
- Institute for Tissue Engineering and Regenerative Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Stuart B. Goodman
- Department of Orthopaedic Surgery, Stanford University, California, USA
- Department of Bioengineering, Stanford University, California, USA
| | - Hang Lin
- Department of Orthopaedic Surgery, Center for Cellular and Molecular Engineering, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
- McGowan Institute for Regenerative Medicine, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
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Effects of Curcumin in a Mouse Model of Very High Fat Diet-Induced Obesity. Biomolecules 2020; 10:biom10101368. [PMID: 32992936 PMCID: PMC7650718 DOI: 10.3390/biom10101368] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/10/2020] [Accepted: 09/18/2020] [Indexed: 02/08/2023] Open
Abstract
Worldwide rates of Western-diet-induced obesity epidemics are growing dramatically. Being linked with numerous comorbidities and complications, including cardiovascular disease, type 2 diabetes, cancer, chronic inflammation, and osteoarthritis (OA), obesity represents one of the most threatening challenges for modern healthcare. Mouse models are an invaluable tool for investigating the effects of diets and their bioactive components against high fat diet (HFD)-induced obesity and its comorbidities. During recent years, very high fat diets (VHFDs), providing 58–60% kcal fat, have become a popular alternative to more traditional HFDs, providing 40–45% total kcal fat, due to the faster induction of obesity and stronger metabolic responses. This project aims to investigate if the 60% fat VHFD is suitable to evaluate the protective effects of curcumin in diet-induced obesity and osteoarthritis. B6 male mice, prone to diet-induced metabolic dysfunction, were supplemented with VHFD without or with curcumin for 13 weeks. Under these experimental conditions, feeding mice a VHFD for 13 weeks did not result in expected robust manifestations of the targeted pathophysiologic conditions. Supplementing the diet with curcumin, in turn, protected the animals against obesity without significant changes in white adipocyte size, glucose clearance, and knee cartilage integrity. Additional research is needed to optimize diet composition, curcumin dosage, and duration of dietary interventions to establish the VHFD-induced obesity for evaluating the effects of curcumin on metabolic dysfunctions related to obesity and osteoarthritis.
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A Shift in Glycerolipid Metabolism Defines the Follicular Fluid of IVF Patients with Unexplained Infertility. Biomolecules 2020; 10:biom10081135. [PMID: 32752038 PMCID: PMC7465802 DOI: 10.3390/biom10081135] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/26/2020] [Accepted: 07/29/2020] [Indexed: 01/05/2023] Open
Abstract
Follicular fluid (FF) constitutes the microenvironment of the developing oocyte. We recently characterized its lipid composition and found lipid signatures of positive pregnancy outcome after in vitro fertilization (IVF). In the current study, we aimed to test the hypothesis that unexplained female infertility is related to lipid metabolism, given the lipid signature of positive-outcome IVF patients we previously found. Assuming that FF samples from IVF patients with male factor infertility can represent a non-hindered metabolic microenvironment, we compared them to FF taken from women with unexplained infertility. FF from patients undergoing IVF was examined for its lipid composition. We found highly increased triacylglycerol levels, with a lower abundance of monoacylglycerols, phospholipids and sphingolipids in the FF of patients with unexplained infertility. The alterations in the lipid class accumulation were independent of the body mass index (BMI) and were altogether kept across the age groups. Potential lipid biomarkers for pregnancy outcomes showed a highly discriminative abundance in the FF of unexplained infertility patients. Lipid abundance distinguished IVF patients with unrecognized infertility and provided a potential means for the evaluation of female fertility.
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Griffin TM, Batushansky A, Hudson J, Lopes EBP. Correlation network analysis shows divergent effects of a long-term, high-fat diet and exercise on early stage osteoarthritis phenotypes in mice. JOURNAL OF SPORT AND HEALTH SCIENCE 2020; 9:119-131. [PMID: 32099720 PMCID: PMC7031811 DOI: 10.1016/j.jshs.2019.05.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Revised: 04/02/2019] [Accepted: 04/23/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Obesity increases knee osteoarthritis (OA) risk through metabolic, inflammatory, and biomechanical factors, but how these systemic and local mediators interact to drive OA pathology is not well understood. We tested the effect of voluntary running exercise after chronic diet-induced obesity on knee OA-related cartilage and bone pathology in mice. We then used a correlation-based network analysis to identify systemic and local factors associated with early-stage knee OA phenotypes among the different diet and exercise groups. METHODS Male C57BL/6J mice were fed a defined control (10% kcal fat) or high fat (HF) (60% kcal fat) diet from 6 to 37 weeks of age. At 25 weeks, one-half of the mice from each diet group were housed in cages with running wheels for the remainder of the study. Histology, micro computed tomography, and magnetic resonance imaging were used to evaluate changes in joint tissue structure and OA pathology. These local variables were then compared to systemic metabolic (body mass, body fat, and glucose tolerance), inflammatory (serum adipokines and inflammatory mediators), and functional (mechanical tactile sensitivity and grip strength) outcomes using a correlation-based network analysis. Diet and exercise effects were evaluated by two-way analysis of variance. RESULTS An HF diet increased the infrapatellar fat pad size and posterior joint osteophytes, and wheel running primarily altered the subchondral cortical and trabecular bone. Neither HF diet nor exercise altered average knee cartilage OA scores compared to control groups. However, the coefficient of variation was ≥25% for many outcomes, and some mice in both diet groups developed moderate OA (≥33% maximum score). This supported using correlation-based network analyses to identify systemic and local factors associated with early-stage knee OA phenotypes. In wheel-running cohorts, an HF diet reduced the network size compared to the control diet group despite similar running distances, suggesting that diet-induced obesity dampens the effects of exercise on systemic and local OA-related factors. Each of the 4 diet and activity groups showed mostly unique networks of local and systemic factors correlated with early-stage knee OA. CONCLUSION Despite minimal group-level effects of chronic diet-induced obesity and voluntary wheel running on knee OA pathology under the current test durations, diet and exercise substantially altered the relationships among systemic and local variables associated with early-stage knee OA. These results suggest that distinct pre-OA phenotypes may exist prior to the development of disease.
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MESH Headings
- Adipokines/blood
- Animals
- Cartilage, Articular/pathology
- Cartilage, Articular/physiopathology
- Diet, High-Fat/adverse effects
- Disease Models, Animal
- Hand Strength
- Hyperalgesia/physiopathology
- Inflammation Mediators/blood
- Male
- Mice, Inbred C57BL
- Obesity/complications
- Obesity/physiopathology
- Osteoarthritis, Knee/etiology
- Osteoarthritis, Knee/metabolism
- Osteoarthritis, Knee/pathology
- Osteoarthritis, Knee/physiopathology
- Physical Conditioning, Animal
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Affiliation(s)
- Timothy M Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK 73104, USA; Reynolds Oklahoma Center on Aging and Departments of Biochemistry and Molecular Biology, Physiology, and Geriatric Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| | - Albert Batushansky
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK 73104, USA
| | - Joanna Hudson
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK 73104, USA
| | - Erika Barboza Prado Lopes
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation (OMRF), Oklahoma City, OK 73104, USA
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Sansone V, Applefield RC, De Luca P, Pecoraro V, Gianola S, Pascale W, Pascale V. Does a high-fat diet affect the development and progression of osteoarthritis in mice?: A systematic review. Bone Joint Res 2020; 8:582-592. [PMID: 31934329 PMCID: PMC6946912 DOI: 10.1302/2046-3758.812.bjr-2019-0038.r1] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
Abstract
Aims The aim of this study was to systematically review the literature for evidence of the effect of a high-fat diet (HFD) on the onset or progression of osteoarthritis (OA) in mice. Methods A literature search was performed in PubMed, Embase, Web of Science, and Scopus to find all studies on mice investigating the effects of HFD or Western-type diet on OA when compared with a control diet (CD). The primary outcome was the determination of cartilage loss and alteration. Secondary outcomes regarding local and systemic levels of proteins involved in inflammatory processes or cartilage metabolism were also examined when reported. Results In total, 14 publications met our inclusion criteria and were included in our review. Our meta-analysis showed that, when measured by the modified Mankin Histological-Histochemical Grading System, there was a significantly higher rate of OA in mice fed a HFD than in mice on a CD (standardized mean difference (SMD) 1.27, 95% confidence interval (CI) 0.63 to 1.91). Using the Osteoarthritis Research Society International (OARSI) score, there was a trend towards HFD causing OA (SMD 0.78, 95% CI -0.04 to 1.61). In terms of OA progression, a HFD consistently worsened the progression of surgically induced OA when compared with a CD. Finally, numerous inflammatory cytokines such as tumour necrosis factor alpha (TNF-α), interleukin (IL)-1β, and leptin, among others, were found to be altered by a HFD. Conclusion A HFD seems to induce or exacerbate the progression of OA in mice. The metabolic changes and systemic inflammation brought about by a HFD appear to be key players in the onset and progression of OA. Cite this article:Bone Joint Res 2019;8:582–592.
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Affiliation(s)
- Valerio Sansone
- Department of Orthopaedics, Universitá degli Studi di Milano and IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
| | | | | | - Valentina Pecoraro
- Department of Laboratory Medicine, Ospedale Civile Sant'Agostino Estense di Baggiovra, Baggiovara, Italy
| | | | | | - Valerio Pascale
- Department of Orthopaedics, Universitá degli Studi di Milano and IRCCS Istituto Ortopedico Galeazzi, Milan, Italy
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Griffin TM, Scanzello CR. Innate inflammation and synovial macrophages in osteoarthritis pathophysiology. Clin Exp Rheumatol 2019; 37 Suppl 120:57-63. [PMID: 31621560 PMCID: PMC6842324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 09/09/2019] [Indexed: 06/10/2023]
Abstract
Although osteoarthritis (OA) was historically referred to as the non-inflammatory arthritis, it is now considered a condition involving persistent low-grade inflammation and activation of innate inflammatory pathways. Synovitis increases the risk of OA onset and progression and involves the recruitment of monocytes, lymphocytes, and other leukocytes. In particular, macrophages are important mediators of synovial inflammatory activity and pathologic cartilage and bone responses that are characteristic of OA. Advances in understanding how damage-associated molecular patterns (DAMPs) trigger monocyte/macrophage recruitment and activation in joints provide opportunities for disease-modifying therapies. However, the complexity and plasticity of macrophage phenotypes that exist in vivo have thus far prevented the successful development of macrophage-targeted treatments. Current studies show that synovial macrophages are derived from distinct cellular lineages, which correspond to unique functional roles for maintaining joint homeostasis. An improved understanding of the aetiology of synovial inflammation in specific OA-subtypes, such as with obesity or genetic risk, is a potential strategy for developing patient selection criteria for future precision therapies.
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Affiliation(s)
- Timothy M Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, and Reynolds Oklahoma Center on Aging, Department of Biochemistry and Molecular Biology, Dept.of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA.
| | - Carla R Scanzello
- Translational Musculoskeletal Research Center & Dept. of Medicine, Corporal Michael J. Crescenz Department of Veterans Affairs Medical Center, Philadelphia, and Div. of Rheumatology, Univ. of Pennsylvania Perelman School of Medicine, Philadelphia, PA, USA
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Batushansky A, Matsuzaki S, Newhardt MF, West MS, Griffin TM, Humphries KM. GC-MS metabolic profiling reveals fructose-2,6-bisphosphate regulates branched chain amino acid metabolism in the heart during fasting. Metabolomics 2019; 15:18. [PMID: 30830475 PMCID: PMC6478396 DOI: 10.1007/s11306-019-1478-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Accepted: 01/16/2019] [Indexed: 12/24/2022]
Abstract
INTRODUCTION As an insulin sensitive tissue, the heart decreases glucose usage during fasting. This response is mediated, in part, by decreasing phosphofructokinase-2 (PFK-2) activity and levels of its product fructose-2,6-bisphosphate. However, the importance of fructose-2,6-bisphosphate in the fasting response on other metabolic pathways has not been evaluated. OBJECTIVES The goal of this study is to determine how sustaining cardiac fructose-2,6-bisphosphate levels during fasting affects the metabolomic profile. METHODS Control and transgenic mice expressing a constitutively active form of PFK-2 (GlycoHi) were subjected to either 12-h fasting or regular feeding. Animals (n = 4 per group) were used for whole-heart extraction, followed by gas chromatography-mass spectrometry metabolic profiling and multivariate data analysis. RESULTS Principal component analysis displayed differences between Control and GlycoHi groups under both fasting and fed conditions while a clear response to fasting was observed only for Control animals. However, pathway analysis revealed that these smaller changes in the GlycoHi group were significantly associated with branched-chain amino acid (BCAA) metabolism (~ 40% increase in all BCAAs). Correlation network analysis demonstrated clear differences in response to fasting between Control and GlycoHi groups amongst most parameters. Notably, fasting caused an increase in network density in the Control group from 0.12 to 0.14 while the GlycoHi group responded oppositely (0.17-0.15). CONCLUSIONS Elevated cardiac PFK-2 activity during fasting selectively increases BCAAs levels and decreases global changes in metabolism.
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Affiliation(s)
- Albert Batushansky
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, US
| | - Satoshi Matsuzaki
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, US
| | - Maria F Newhardt
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, US
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, US
| | - Melinda S West
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, US
| | - Timothy M Griffin
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, US
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, US
- Department of Physiology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, US
| | - Kenneth M Humphries
- Aging and Metabolism Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, 73104, US.
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, 73104, US.
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