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Yang J, Sun HM, Yang H, Hu L, Niu JL. The quantitative parameters derived from IDEAL-IQ in the lumbar vertebrae of healthy children: a pilot study of bone development. Quant Imaging Med Surg 2024; 14:136-143. [PMID: 38223122 PMCID: PMC10784005 DOI: 10.21037/qims-23-696] [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: 05/18/2023] [Accepted: 10/17/2023] [Indexed: 01/16/2024]
Abstract
Background Early childhood bone development affects that of bone disease in adolescence and adulthood. Many diseases can affect the cancellous bone or bone marrow. Therefore, it is of great significance to quantify the bone development of healthy children. The evaluation methods of bone development include bone age (BA) assessment and dual-energy X-ray bone mineral densitometry (DXA), both of which have strong subjectivity. The present study was conducted to improve our understanding of the bone development of healthy children using the quantitative parameters derived from iterative decomposition of water and fat with echo asymmetry and least squares estimation quantification (IDEAL-IQ) sequence. Methods Our study enrolled healthy children between January 2022 to December 2022 consecutively in Children's Hospital of Shanxi. The inclusion criteria were as follows: (I) age ≤18 years; (II) no contraindications (surgical and interventional devices for ferromagnetic materials, cardiac implantable electronic devices, cochlear implants, insulin pumps, dental implants containing metal or alloy) to magnetic resonance imaging (MRI) scan. The exclusion criteria were as follows: (I) previous malignant disease, (II) previous chemoradiotherapy, (III) previous spine surgery, (IV) previous or acute vertebral compression fracture, (V) artifacts present in images. Participants underwent MRI scans using IDEAL-IQ sequence in the lumbar vertebrae. The IDEAL-IQ parameters [proton density fat fraction (PDFF), 1/T2* (R2*)] were obtained. The factor analysis of variance was applied to compare the differences of PDFF and R2* in different lumbar vertebral groups. The Kruskal-Wallis H test or Mann-Whitney U test was applied to compare the differences of quantitative data among different gender or age groups. Spearman correlation analysis was applied to study the relationship among the age, PDFF, and R2*. Results A total of 145 participants (76 males, 69 females) were evaluated. There were no significant differences in PDFF and R2* of different lumbar vertebrae (PPDFF=0.338, PR2*=0.868). The average age was 36 [13-72] months. They were assigned into 4 groups (0-11, 12-35, 36-71, and 72-144 months). As the age increased, the average PDFF and R2* both increased significantly (rPDFF=0.659, rR2*=0.359, P<0.001). There were significant statistical differences in PDFF and R2* between the 4 age groups (ZPDFF=46.651, ZR2*=27.537, P<0.001). Moreover, the PDFF was also positively correlated with R2* (r=0.576, P<0.001). No association was found between the gender and PDFF, R2* (PPDFF=0.949, PR2*=0.177). Conclusions The quantitative parameters derived from IDEAL-IQ in the lumbar vertebrae of healthy children will improve our understanding of bone development and provide a basis for further exploring the diseases that affect children's bone development.
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Affiliation(s)
- Jie Yang
- Department of Magnetic Resonance Imaging, The Affiliated Children’s Hospital of Shanxi Medical University, Taiyuan, China
| | - Hui-Miao Sun
- Department of Magnetic Resonance Imaging, Children’s Hospital of Shanxi, Women Health Center of Shanxi, Taiyuan, China
| | - Hong Yang
- Department of Magnetic Resonance Imaging, Children’s Hospital of Shanxi, Women Health Center of Shanxi, Taiyuan, China
| | - Lei Hu
- Department of Magnetic Resonance Imaging, Children’s Hospital of Shanxi, Women Health Center of Shanxi, Taiyuan, China
| | - Jin-Liang Niu
- Department of Magnetic Resonance Imaging, The Second Hospital of Shanxi Medical University, Taiyuan, China
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Gong Y, Bu Y, Li Y, Hao D, He B, Kong L, Huang W, Gao X, Zhang B, Qu Z, Wang D, Yan L. Hydrogel-based delivery system applied in the local anti-osteoporotic bone defects. Front Bioeng Biotechnol 2022; 10:1058300. [PMID: 36440439 PMCID: PMC9691673 DOI: 10.3389/fbioe.2022.1058300] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Accepted: 10/27/2022] [Indexed: 10/29/2023] Open
Abstract
Osteoporosis is an age-related systemic skeletal disease leading to bone mass loss and microarchitectural deterioration. It affects a large number of patients, thereby economically burdening healthcare systems worldwide. The low bioavailability and complications, associated with systemic drug consumption, limit the efficacy of anti-osteoporosis drugs currently available. Thus, a combination of therapies, including local treatment and systemic intervention, may be more beneficial over a singular pharmacological treatment. Hydrogels are attractive materials as fillers for bone injuries with irregular shapes and as carriers for local therapeutic treatments. They exhibit low cytotoxicity, excellent biocompatibility, and biodegradability, and some with excellent mechanical and swelling properties, and a controlled degradation rate. This review reports the advantages of hydrogels for adjuvants loading, including nature-based, synthetic, and composite hydrogels. In addition, we discuss functional adjuvants loaded with hydrogels, primarily focusing on drugs and cells that inhibit osteoclast and promote osteoblast. Selecting appropriate hydrogels and adjuvants is the key to successful treatment. We hope this review serves as a reference for subsequent research and clinical application of hydrogel-based delivery systems in osteoporosis therapy.
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Affiliation(s)
- Yining Gong
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Yazhong Bu
- Department of Biophysics, Institute of Medical Engineering, School of Basic Medical Sciences, Health Science Center, Xi’an Jiaotong University, Xi’an, China
| | - Yongliang Li
- Department of Rehabilitation, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Dingjun Hao
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Baorong He
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Lingbo Kong
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Wangli Huang
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Xiangcheng Gao
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Bo Zhang
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Zechao Qu
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Dong Wang
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
| | - Liang Yan
- Department of Spine Surgery, Honghui Hospital, Xi’an Jiaotong University, Xi’an, China
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Araújo R, Martin V, Ferreira R, Fernandes MH, Gomes PS. A new ex vivo model of the bone tissue response to the hyperglycemic environment - The embryonic chicken femur organotypic culture in high glucose conditions. Bone 2022; 158:116355. [PMID: 35151894 DOI: 10.1016/j.bone.2022.116355] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Revised: 02/01/2022] [Accepted: 02/07/2022] [Indexed: 11/02/2022]
Abstract
Diabetes mellitus (DM) embrace a group of chronic metabolic conditions with a high morbidity, causing deleterious effects in different tissues and organs, including bone. Hyperglycemia seems to be one of the most contributing etiological factors of bone-related alterations, altering metabolic functionality and inducing morphological adaptations. Despite the established models for the assessment of bone functionality in hyperglycemic conditions, in vitro studies present a limited representativeness given the imperfect cell-cell and cell-matrix interactions, and restricted three-dimensional spatial arrangement; while in vivo studies raise ethical issues and offer limited mechanistic characterization, given the modulatory influence of many systemic factors and/or regulatory systems. Accordingly, the aim of this study is to establish and characterize an innovative ex vivo model of the bone tissue response to hyperglycemia, reaching hand of the organotypic culture of embryonic chicken femurs in high glucose conditions, showcasing the integrative responsiveness of the model regarding hyperglycemia-induced alterations. A thorough assessment of the cellular and tissue functionality was further conducted. Results show that, in high glucose conditions, femurs presented an increased cell proliferation and enhanced collagen production, despite the altered protein synthesis, substantiated by the increased carbonyl content. Gene expression analysis evidenced that high glucose levels induced the expression of pro-inflammatory and early osteogenic markers, further impairing the expression of late osteogenic markers. Furthermore, the tissue morphological organization and matrix mineralization were significantly altered by high glucose levels, as evidenced by histological, histochemical and microtomographic evaluations. Attained data is coherent with acknowledged hyperglycemia-induced bone tissue alterations, validating the models' effectiveness, and evidencing its integrative responsiveness regarding cell proliferation, gene and protein expression, and tissue morpho-functional organization. The assessed ex vivo model conjoins the capability to access both cellular and tissue outcomes in the absence of a systemic modulatory influence, outreaching the functionality of current experimental in vitro and in vivo models of the diabetic bone condition.
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Affiliation(s)
- Rita Araújo
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, Porto, Portugal; REQUIMTE/LAQV, University of Porto, Porto, Portugal
| | - Victor Martin
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, Porto, Portugal; REQUIMTE/LAQV, University of Porto, Porto, Portugal
| | - Rita Ferreira
- Department of Chemistry, University of Aveiro, Portugal; REQUIMTE/LAQV, University of Aveiro, Aveiro, Portugal
| | - Maria Helena Fernandes
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, Porto, Portugal; REQUIMTE/LAQV, University of Porto, Porto, Portugal
| | - Pedro Sousa Gomes
- Laboratory for Bone Metabolism and Regeneration, Faculty of Dental Medicine, University of Porto, Porto, Portugal; REQUIMTE/LAQV, University of Porto, Porto, Portugal.
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Wagner JM, Steubing Y, Dadras M, Wallner C, Lotzien S, Huber J, Sogorski A, Sacher M, Reinkemeier F, Dittfeld S, Becerikli M, Lehnhardt M, Behr B. Wnt3a and ASCs are capable of restoring mineralization in staph aureus-infected primary murine osteoblasts. J Bone Miner Metab 2022; 40:20-28. [PMID: 34562154 DOI: 10.1007/s00774-021-01269-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 08/23/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Bone infections are one of the main reasons for impaired bone regeneration and non-union formation. In previous experimental animal studies we could already demonstrate that bone defects due to prior infections showed a markedly reduced healing capacity, which could effectively be enhanced via application of Wnt3a and Adipose-derived stromal cells (ASCs). For a more in-depth analysis, we investigated proliferation and mineralization of cultured osteoblasts infected with staph aureus and sought to investigate effects of Wnt3a and ASCs on infected osteoblasts. MATERIALS AND METHODS Primary murine osteoblasts were isolated from calvariae and infected with staph aureus. Infected osteoblasts received treatment via application of recombinant Wnt3a, ASC conditioned medium and were furthermore cocultured with ASCs. Osteoblasts were evaluated by Alamar blue assay for metabolic activity, TUNEL-assay for apoptosis, ALP and Alizarin Red staining for mineralization. In addition, immunoflourescent staining (IF) and qRT-PCR analyses were performed. RESULTS Infected osteoblasts showed a markedly reduced ability for mineralization and increased apoptosis, which could be restored to physiological levels by Wnt3a and ASC treatment. Interestingly, metabolic activity of osteoblasts seemed to be unaffected by staph aureus infection. Additional analyses of Wnt-pathway activity revealed effective enhancement of canonical Wnt-pathway activity in Wnt3a-treated osteoblasts. CONCLUSIONS In summary, we gained further osteoblast-related insights into pathomechanisms of reduced bone healing capacity upon infections.
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Affiliation(s)
| | - Yonca Steubing
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Mehran Dadras
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Christoph Wallner
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Sebastian Lotzien
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Julika Huber
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Alexander Sogorski
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Maxi Sacher
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Felix Reinkemeier
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Stephanie Dittfeld
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Mustafa Becerikli
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Marcus Lehnhardt
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
| | - Björn Behr
- University Hospital BG Bergmannsheil Bochum, Bürkle-de-la-Camp Platz 1, 44789, Bochum, Germany
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Häussling V, Aspera-Werz RH, Rinderknecht H, Springer F, Arnscheidt C, Menger MM, Histing T, Nussler AK, Ehnert S. 3D Environment Is Required In Vitro to Demonstrate Altered Bone Metabolism Characteristic for Type 2 Diabetics. Int J Mol Sci 2021; 22:ijms22062925. [PMID: 33805833 PMCID: PMC8002142 DOI: 10.3390/ijms22062925] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 12/19/2022] Open
Abstract
A large British study, with almost 3000 patients, identified diabetes as main risk factor for delayed and nonunion fracture healing, the treatment of which causes large costs for the health system. In the past years, much progress has been made to treat common complications in diabetics. However, there is still a lack of advanced strategies to treat diabetic bone diseases. To develop such therapeutic strategies, mechanisms leading to massive bone alterations in diabetics have to be well understood. We herein describe an in vitro model displaying bone metabolism frequently observed in diabetics. The model is based on osteoblastic SaOS-2 cells, which in direct coculture, stimulate THP-1 cells to form osteoclasts. While in conventional 2D cocultures formation of mineralized matrix is decreased under pre-/diabetic conditions, formation of mineralized matrix is increased in 3D cocultures. Furthermore, we demonstrate a matrix stability of the 3D carrier that is decreased under pre-/diabetic conditions, resembling the in vivo situation in type 2 diabetics. In summary, our results show that a 3D environment is required in this in vitro model to mimic alterations in bone metabolism characteristic for pre-/diabetes. The ability to measure both osteoblast and osteoclast function, and their effect on mineralization and stability of the 3D carrier offers the possibility to use this model also for other purposes, e.g., drug screenings.
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Affiliation(s)
- Victor Häussling
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Romina H. Aspera-Werz
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Helen Rinderknecht
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Fabian Springer
- Department of Diagnostic and Interventional Radiology, University of Tübingen, Hoppe-Seyler-Str. 3, D-72076 Tübingen, Germany;
- Radiology Department, BG Trauma Center Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany
| | - Christian Arnscheidt
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Maximilian M. Menger
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Tina Histing
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
| | - Andreas K. Nussler
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
- Correspondence: ; Tel.: +49-7071-606-1065
| | - Sabrina Ehnert
- Siegfried Weller Research Institute, BG Trauma Center Tübingen, Department of Trauma and Reconstructive Surgery, University of Tübingen, Schnarrenbergstr. 95, D-72076 Tübingen, Germany; (V.H.); (R.H.A.-W.); (H.R.); (C.A.); (M.M.M.); (T.H.); (S.E.)
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Mertz D, Sentosa J, Luker G, Takayama S. Studying Adipose Tissue in the Breast Tumor Microenvironment In Vitro: Progress and Opportunities. Tissue Eng Regen Med 2020; 17:773-785. [PMID: 32939672 DOI: 10.1007/s13770-020-00299-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 08/14/2020] [Accepted: 08/28/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND The breast cancer microenvironment contains a variety of stromal cells that are widely implicated in worse patient outcomes. While many in vitro models of the breast tumor microenvironment have been published, only a small fraction of these feature adipocytes. Adipocytes are a cell type increasingly recognized to have complex functions in breast cancer. METHODS In this review, we examine findings from recent examples of in vitro experiments modeling adipocytes within the local breast tumor microenvironment. RESULTS Both two-dimensional and three-dimensional models of adipocytes in the breast tumor microenvironment are covered in this review and both have uncovered interesting phenomena related to breast tumor progression. CONCLUSION Certain aspects of breast cancer and associated adipocyte biology: extracellular matrix effects, cell-cell contact, and physiological mass transport can only be examined with a three-dimensional culture platform. Opportunities remain for innovative improvements to be made to in vitro models that further increase what is known about adipocytes during breast cancer progression.
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Affiliation(s)
- David Mertz
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Jason Sentosa
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA
| | - Gary Luker
- Departments of Radiology, Biomedical Engineering, Microbiology and Immunology, University of Michigan, 500 S State St, Ann Arbor, MI, 48109, USA
| | - Shuichi Takayama
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, 313 Ferst Dr NW, Atlanta, GA, 30332, USA. .,Parker H. Petit Institute of Bioengineering and Bioscience, Georgia Institute of Technology, 313 Ferst Dr NW, Atlanta, GA, 30332, USA.
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Haylett WL, Ferris WF. Adipocyte-progenitor cell communication that influences adipogenesis. Cell Mol Life Sci 2020; 77:115-128. [PMID: 31352534 PMCID: PMC11104918 DOI: 10.1007/s00018-019-03256-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 07/05/2019] [Accepted: 07/24/2019] [Indexed: 12/12/2022]
Abstract
Adipose tissue is located in discrete depots that are differentially associated with elevated risk of metabolic complications, with fat accretion in visceral depots being most detrimental to metabolic health. Currently, the regulation of specific adipose depot expansion, by adipocyte hypertrophy and hyperplasia and consequently fat distribution, is not well understood. However, a growing body of evidence from in vitro investigations indicates that mature adipocytes secrete factors that modulate the proliferation and differentiation of progenitor, adipose-derived stem cells (ADSCs). It is therefore plausible that endocrine communication between adipocytes and ADSCs located in different depots influences fat distribution, and may therefore contribute to the adverse health outcomes associated with visceral adiposity. This review will explore the available evidence of paracrine and endocrine crosstalk between mature adipocytes and ADSCs that affects adipogenesis, as a better understanding of the regulatory roles of the extracellular signalling mechanisms within- and between adipose depots may profoundly change the way we view adipose tissue growth in obesity and related comorbidities.
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Affiliation(s)
- William Lloyd Haylett
- Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - William Frank Ferris
- Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa.
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Eller-Vainicher C, Cairoli E, Grassi G, Grassi F, Catalano A, Merlotti D, Falchetti A, Gaudio A, Chiodini I, Gennari L. Pathophysiology and Management of Type 2 Diabetes Mellitus Bone Fragility. J Diabetes Res 2020; 2020:7608964. [PMID: 32566682 PMCID: PMC7262667 DOI: 10.1155/2020/7608964] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 04/29/2020] [Accepted: 05/04/2020] [Indexed: 12/14/2022] Open
Abstract
Individuals with type 2 diabetes mellitus (T2DM) have an increased risk of bone fragility fractures compared to nondiabetic subjects. This increased fracture risk may occur despite normal or even increased values of bone mineral density (BMD), and poor bone quality is suggested to contribute to skeletal fragility in this population. These concepts explain why the only evaluation of BMD could not be considered an adequate tool for evaluating the risk of fracture in the individual T2DM patient. Unfortunately, nowadays, the bone quality could not be reliably evaluated in the routine clinical practice. On the other hand, getting further insight on the pathogenesis of T2DM-related bone fragility could consent to ameliorate both the detection of the patients at risk for fracture and their appropriate treatment. The pathophysiological mechanisms underlying the increased risk of fragility fractures in a T2DM population are complex. Indeed, in T2DM, bone health is negatively affected by several factors, such as inflammatory cytokines, muscle-derived hormones, incretins, hydrogen sulfide (H2S) production and cortisol secretion, peripheral activation, and sensitivity. All these factors may alter bone formation and resorption, collagen formation, and bone marrow adiposity, ultimately leading to reduced bone strength. Additional factors such as hypoglycemia and the consequent increased propensity for falls and the direct effects on bone and mineral metabolism of certain antidiabetic medications may contribute to the increased fracture risk in this population. The purpose of this review is to summarize the literature evidence that faces the pathophysiological mechanisms underlying bone fragility in T2DM patients.
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Affiliation(s)
- C. Eller-Vainicher
- Unit of Endocrinology, Fondazione IRCCS Cà Granda-Ospedale Maggiore Policlinico, Milan, Italy
| | - E. Cairoli
- Istituto Auxologico Italiano, IRCCS, Unit for Bone Metabolism Diseases and Diabetes & Lab of Endocrine and Metabolic Research, Italy
- Dept. of Clinical Sciences & Community Health, University of Milan, Milan, Italy
| | - G. Grassi
- Unit of Endocrinology, Fondazione IRCCS Cà Granda-Ospedale Maggiore Policlinico, Milan, Italy
- Dept. of Clinical Sciences & Community Health, University of Milan, Milan, Italy
| | - F. Grassi
- Ramses Lab, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - A. Catalano
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - D. Merlotti
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
| | - A. Falchetti
- Istituto Auxologico Italiano, IRCCS, Unit for Bone Metabolism Diseases and Diabetes & Lab of Endocrine and Metabolic Research, Italy
| | - A. Gaudio
- Department of Clinical and Experimental Medicine, University of Catania, University Hospital ‘G. Rodolico', Catania, Italy
| | - I. Chiodini
- Istituto Auxologico Italiano, IRCCS, Unit for Bone Metabolism Diseases and Diabetes & Lab of Endocrine and Metabolic Research, Italy
- Dept. of Clinical Sciences & Community Health, University of Milan, Milan, Italy
| | - L. Gennari
- Department of Medicine, Surgery and Neurosciences, University of Siena, Italy
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Glucose Restriction Promotes Osteocyte Specification by Activating a PGC-1α-Dependent Transcriptional Program. iScience 2019; 15:79-94. [PMID: 31039455 PMCID: PMC6488568 DOI: 10.1016/j.isci.2019.04.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 01/16/2019] [Accepted: 04/08/2019] [Indexed: 12/16/2022] Open
Abstract
Osteocytes, the most abundant of bone cells, differentiate while they remain buried within the bone matrix. This encasement limits their access to nutrients and likely affects their differentiation, a process that remains poorly defined. Here, we show that restriction in glucose supply promotes the osteocyte transcriptional program while also being associated with increased mitochondrial DNA levels. Glucose deprivation triggered the activation of the AMPK/PGC-1 pathway. AMPK and SIRT1 activators or PGC-1α overexpression are sufficient to enhance osteocyte gene expression in IDG-SW3 cells, murine primary osteoblasts, osteocytes, and organotypic/ex vivo bone cultures. Conversely, osteoblasts and osteocytes deficient in Ppargc1a and b were refractory to the effects of glucose restriction. Finally, conditional ablation of both genes in osteoblasts and osteocytes generate osteopenia and reduce osteocytic gene expression in mice. Altogether, we uncovered a role for PGC-1 in the regulation of osteocyte gene expression.
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Zhang K, Liu F, Jin D, Guo T, Hou R, Zhang J, Lu B, Hou Y, Zhao X, Li Y. Autophagy preserves the osteogenic ability of periodontal ligament stem cells under high glucose conditions in rats. Arch Oral Biol 2019; 101:172-179. [PMID: 30951955 DOI: 10.1016/j.archoralbio.2019.03.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 03/25/2019] [Accepted: 03/25/2019] [Indexed: 01/08/2023]
Abstract
OBJECTIVE To investigate how a high glucose environment influences the osteogenic ability of periodontal ligament stem cells (PDLSCs) and the function of autophagy in this process, we explored whether the osteogenic ability of PDLSCs could be protected by autophagy. DESIGN PDLSC proliferation and osteogenesis were evaluated by CCK-8 and western blotting under gradient glucose conditions. The Autophagy RT2 Profiler PCR Array was used to screen autophagy-related mRNA expression during PDLSC osteoblastic differentiation on 5.5 mM + osteogenic induction (OI) medium or 25 mM + OI medium on day 3. Autophagy was regulated by an inducer (rapamycin) and inhibitor (bafilomycin) to investigate its protective effects on PDLSCs. A periodontal trauma model was established in diabetic rats to verify the effects of enhanced autophagy activity on PDLSCs. RESULTS A high glucose concentration (25 mM) impeded PDLSC proliferation on day 1, and compared with the control condition, high glucose also decreased the osteogenic ability of PDLSCs. The Autophagy RT2 Profiler PCR Array showed obvious fluctuations in many autophagy-related genes, such as ULK1 (9.27), MTOR (3.15), MAP1LC3B (4.22), GABARAPL1 (7.09), ATG10 (6.5), AMPK14 (4.47), WIPI1 (3.29), and IGF1 (24.65). Compared with the control condition, an autophagy inducer or inhibitor markedly impaired or enhanced osteogenic differentiation in cells. The diabetic rat periodontal trauma model demonstrated that periodontium tissue partly recovered in the autophagy-enhanced cell injection diabetic rat group. CONCLUSIONS High glucose inhibited the activity of PDLSCs, and regulating autophagy protected cell function. Upregulating autophagy partially reversed the adverse effect of high glucose conditions on PDLSCs.
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Affiliation(s)
- Kai Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Fuwei Liu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Dan Jin
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Ting Guo
- Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiang Su, China
| | - Rui Hou
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Junrui Zhang
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Bin Lu
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Yan Hou
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China
| | - Xin Zhao
- Out-patient department, The Fourth Military Medical University, China
| | - Yunpeng Li
- State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Oral and Maxillofacial Surgery, School of Stomatology, The Fourth Military Medical University, China.
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11
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Usala RL, Fernandez SJ, Mete M, Shara NM, Verbalis JG. Hyponatremia Is Associated With Increased Osteoporosis and Bone Fractures in Patients With Diabetes With Matched Glycemic Control. J Endocr Soc 2019; 3:411-426. [PMID: 30746503 PMCID: PMC6364625 DOI: 10.1210/js.2018-00320] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 12/28/2018] [Indexed: 12/18/2022] Open
Abstract
Context Patients with diabetes mellitus are at increased risk for bone fragility fracture secondary to multiple mechanisms. Hyperglycemia can induce true dilutional hyponatremia. Hyponatremia is associated with gait instability, osteoporosis, and increased falls and bone fractures, and studies suggest that compromised bone quality with hyponatremia may be independent of plasma osmolality. We performed a case-control study of patients with diabetes mellitus matched by median glycated hemoglobin (HbA1c) to assess whether hyponatremia was associated with increased risk of osteoporosis and/or fragility fracture. Design Osteoporosis (n = 823) and fragility fracture (n = 840) cases from the MedStar Health database were matched on age of first HbA1c ≥6.5%, sex, race, median HbA1c over an interval from first HbA1c ≥6.5% to the end of the encounter window, diabetic encounter window length, and type 1 vs type 2 diabetes mellitus with controls without osteoporosis (n = 823) and without fragility fractures (n = 840), respectively. Clinical variables, including coefficient of glucose variation and hyponatremia (defined as serum [Na+] <135 mmol/dL within 30 days of the end of the diabetic window), were included in a multivariate analysis. Results Multivariate conditional logistic regression models demonstrated that hyponatremia within 30 days of the outcome measure was independently associated with osteoporosis and fragility fractures (osteoporosis OR 3.09; 95% CI, 1.37 to 6.98; fracture OR, 6.41; 95% CI, 2.44 to 16.82). Conclusions Our analyses support the hypothesis that hyponatremia is an additional risk factor for osteoporosis and fragility fracture among patients with diabetes mellitus.
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Affiliation(s)
- Rachel L Usala
- Graduate Medical Education, Department of Medicine, MedStar Georgetown University Hospital, Washington, District of Columbia
| | - Stephen J Fernandez
- Department of Biostatistics and Bioinformatics, MedStar Health Research Institute, Washington, District of Columbia
| | - Mihriye Mete
- Department of Biostatistics and Bioinformatics, MedStar Health Research Institute, Washington, District of Columbia
| | - Nawar M Shara
- Department of Biostatistics and Bioinformatics, MedStar Health Research Institute, Washington, District of Columbia
| | - Joseph G Verbalis
- Division of Endocrinology and Metabolism, Georgetown University Medical Center, Washington, District of Columbia
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12
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Barthes J, Dollinger C, Muller CB, Liivas U, Dupret-Bories A, Knopf-Marques H, Vrana NE. Immune Assisted Tissue Engineering via Incorporation of Macrophages in Cell-Laden Hydrogels Under Cytokine Stimulation. Front Bioeng Biotechnol 2018; 6:108. [PMID: 30177966 PMCID: PMC6110199 DOI: 10.3389/fbioe.2018.00108] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Accepted: 07/13/2018] [Indexed: 02/01/2023] Open
Abstract
The function of soft tissues is intricately linked to their connections with the other systems of the body such as circulation, nervous system, and immune system. The presence of resident macrophages in tissues provides a means to control tissue homeostasis and also a way to react to the physical/biological insults and tissue damage. Thus, incorporation of resident macrophage like phenotype-controlled macrophages in engineered tissues can improve their fidelity as model tissues and also improve their rate of integration and facilitate the resolution of inflammation for regenerative medicine applications. Herein, we demonstrate two potential ways to immunoassist the remodeling process of engineered soft tissues in three-dimensional (3-D) gelatin based hydrogels containing fibroblasts and/or endothelial cells: (i) with supplementation of interleukin-4 (IL-4) in the presence of macrophages and (ii) in tri-culture via naive monocytes or differentiated macrophages. The presence of IL-4 had a proliferative effect on fibroblasts, with a significant boosting effect on proliferation and cytokine secretion in the presence of differentiated macrophages with an upregulation of activin, interleukin-1 receptor antagonist (IL-1RA), tumor necrosis factor alpha (TNF-α), and interleukin-1 beta (IL-1β), creating a more stimulating microenvironment. The addition of IL-4 in endothelial cell/macrophage co-culture configuration improved the organization of the sprout-like structures, with a boost in proliferation at day 1 and with an upregulation of IL-6 and IL-1RA at the earliest stage in the presence of differentiated macrophages creating a favorable microenvironment for angiogenesis. In tri-culture conditions, the presence of monocytes or macrophages resulted in a denser tissue-like structure with highly remodeled hydrogels. The presence of differentiated macrophages had a boosting effect on the angiogenic secretory microenvironment, such as IL-6 and IL-8, without any additional cytokine supplementation. The presence of fibroblasts in combination with endothelial cells also had a significant effect on the secretion of angiopoietin. Our results demonstrate that incorporation of macrophages in a resident macrophage function and their phenotype control have significant effects on the maturation and cytokine microenvironment of 3-D multiple cell type-laden hydrogels, which can be harnessed for better integration of implantable systems and for more physiologically relevant in vitro tissue models with an immune component.
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Affiliation(s)
- Julien Barthes
- PROTiP Medical, Strasbourg, France.,INSERM UMR 1121, Strasbourg, France
| | | | | | | | - Agnes Dupret-Bories
- Institut Claudius Regaud, Institut Universitaire du Cancer Toulouse-Oncopole, Toulouse, France
| | - Helena Knopf-Marques
- INSERM UMR 1121, Strasbourg, France.,Faculté de Chirurgie Dentaire, Université de Strasbourg, Strasbourg, France
| | - Nihal E Vrana
- PROTiP Medical, Strasbourg, France.,INSERM UMR 1121, Strasbourg, France
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13
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Ort C, Dayekh K, Xing M, Mequanint K. Emerging Strategies for Stem Cell Lineage Commitment in Tissue Engineering and Regenerative Medicine. ACS Biomater Sci Eng 2018; 4:3644-3657. [PMID: 33429592 DOI: 10.1021/acsbiomaterials.8b00532] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Stem cells have transformed the fields of tissue engineering and regenerative medicine, and their potential to further advance these fields cannot be overstated. The stem cell niche is a dynamic microenvironment that determines cell fate during development and tissue repair following an injury. Classically, stem cells were studied in isolation of their microenvironment; however, contemporary research has produced a myriad of evidence that shows the importance of multiple aspects of the stem cell niche in regulating their processes. In the context of tissue engineering and regenerative medicine studies, the niche is an artificial environment provided by culture conditions. In vitro culture conditions may involve coculturing with other cell types, developing specific biomaterials, and applying relevant forces to promote the desired lineage commitment. Considerable advance has been made over the past few years toward directed stem cell differentiation; however, the unspecific differentiation of stem cells yielding a mixed population of cells has been a challenge. In this review, we provide a systematic review of the emerging strategies used for lineage commitment within the context of tissue engineering and regenerative medicine. These strategies include scaffold pore-size and pore-shape gradients, stress relaxation, sonic and electromagnetic effects, and magnetic forces. Finally, we provide insights and perspectives into future directions focusing on signaling pathways activated during lineage commitment using external stimuli.
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Affiliation(s)
| | | | - Malcolm Xing
- Department of Mechanical Engineering, University of Manitoba, 66 Chancellors Circle, Winnipeg R3T 2N2, Canada
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14
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Lei J, Murphy WL, Temenoff JS. Combination of Heparin Binding Peptide and Heparin Cell Surface Coatings for Mesenchymal Stem Cell Spheroid Assembly. Bioconjug Chem 2018; 29:878-884. [PMID: 29341600 DOI: 10.1021/acs.bioconjchem.7b00757] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Microtissues containing multiple cell types have been used in both in vitro models and in vivo tissue repair applications. However, to improve throughput, there is a need to develop a platform that supports self-assembly of a large number of 3D microtissues containing multiple cell types in a dynamic suspension system. Thus, the objective of this study was to exploit the binding interaction between the negatively charged glycosaminoglycan, heparin, and a known heparin binding peptide to establish a method that promotes assembly of mesenchymal stem cell (MSC) spheroids into larger aggregates. We characterized heparin binding peptide (HEPpep) and heparin coatings on cell surfaces and determined the specificity of these coatings in promoting assembly of MSC spheroids in dynamic culture. Overall, combining spheroids with both coatings promoted up to 70 ± 11% of spheroids to assemble into multiaggregate structures, as compared to only 10 ± 4% assembly when cells having the heparin coating were cultured with cells coated with a scrambled peptide. These results suggest that this self-assembly method represents an exciting approach that may be applicable for a wide range of applications in which cell aggregation is desired.
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Affiliation(s)
| | - William L Murphy
- Department of Biomedical Engineering , University of Wisconsin-Madison , Madison , Wisconsin 53706 , United States.,Department of Orthopedics and Rehabilitation , University of Wisconsin-Madison , Madison , Wisconsin 53705 , United States
| | - Johnna S Temenoff
- Coulter Department of Biomedical Engineering , Georgia Tech/Emory University , Atlanta , Georgia 30332 , United States
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15
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Retinoic acid exacerbates chlorpyrifos action in ensuing adipogenic differentiation of C3H10T½ cells in a GSK3β dependent pathway. PLoS One 2017; 12:e0173031. [PMID: 28291828 PMCID: PMC5349446 DOI: 10.1371/journal.pone.0173031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 02/14/2017] [Indexed: 01/15/2023] Open
Abstract
The cell differentiation can be exploited as a paradigm to evaluate the effects of noxious chemicals, on human health, either alone or in combinations. In this regard, the effect of a known cell differentiation agent, retinoic acid (RA) was analyzed in the presence of a noxious chemical chlorpyrifos (CPF), an organophosphate (OP), the receptors of which have recently been localized to mesenchymal stem cells (MSCs). The observed imbalance of adipogenic to skeletal differentiation by CPF together with conundrum about adipogenic potential of RA prompted us to delineate their combinatorial effects on C3H10T½MSC-like undifferentiated cells. Based on MTT assay, the cellular viability was retained by CPF at concentrations ranging from 0.01–50μM, beyond which it caused cytotoxicity. These non-toxic concentrations also mildly interfered with adipogenesis of C3H10T½ cells following exposure to adipogenic cocktail. However, upon exposure to RA alone, these MSCs adopted elongated morphology and accumulated lipid vesicles, by day 20, as discerned by phase-contrast and transmission electron microscopy (TEM), in concert with enhanced Oil Red O stained cells. This effect got strongly augmented upon exposure to combination of CPF and RA in a dose-dependent manner. Simultaneous up-regulation in perilipin-1 (PLIN1) and adipsin (ADN) genes, additionally reiterated the adipogenic differentiation. Mechanistically, GSK3β pathway was found to be a major player, whereby inhibiting it with lithium chloride (LiCl) resulted in complete blockage of lipid accumulation, accompanied by complete down regulation of PLIN1 and ADN gene expression. In conclusion, these observations for the first time, lend evidence that exposure of CPF accompanied by RA directs commitment of C3H10T½ cells to adipogenic differentiation through a process involving a crosstalk at GSK3β signaling.
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16
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Palermo A, D'Onofrio L, Buzzetti R, Manfrini S, Napoli N. Pathophysiology of Bone Fragility in Patients with Diabetes. Calcif Tissue Int 2017; 100:122-132. [PMID: 28180919 DOI: 10.1007/s00223-016-0226-3] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/29/2016] [Accepted: 12/20/2016] [Indexed: 02/07/2023]
Abstract
It has been well established that bone fragility is one of the chronic complications of diabetes mellitus, and both type 1 and type 2 diabetes are risk factors for fragility fractures. Diabetes may negatively affect bone health by unbalancing several pathways: bone formation, bone resorption, collagen formation, inflammatory cytokine, muscular and incretin system, bone marrow adiposity and calcium metabolism. The purpose of this narrative review is to explore the current understanding of pathophysiological pathways underlying bone fragility in diabetics. In particular, the review will focus on the peculiar cellular and molecular system impairment that may lead to increased risk of fracture in type 1 and type 2 diabetes.
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Affiliation(s)
- Andrea Palermo
- Diabetes and Bone network, Department Endocrinology and Diabetes, University Campus Bio-Medico of Rome, Via Alvaro del Portillo, 21 - 00128, Rome, Italy
| | - Luca D'Onofrio
- Department of Experimental Medicine, Polo Pontino, Sapienza University of Rome, Rome, Italy
| | - Raffaella Buzzetti
- Department of Experimental Medicine, Polo Pontino, Sapienza University of Rome, Rome, Italy
| | - Silvia Manfrini
- Diabetes and Bone network, Department Endocrinology and Diabetes, University Campus Bio-Medico of Rome, Via Alvaro del Portillo, 21 - 00128, Rome, Italy
| | - Nicola Napoli
- Diabetes and Bone network, Department Endocrinology and Diabetes, University Campus Bio-Medico of Rome, Via Alvaro del Portillo, 21 - 00128, Rome, Italy.
- Division of Bone and Mineral Diseases, Washington University in St Louis, St Louis, USA.
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17
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Subramaniyan SA, Kim S, Hwang I. Cell-Cell Communication Between Fibroblast and 3T3-L1 Cells Under Co-culturing in Oxidative Stress Condition Induced by H 2O 2. Appl Biochem Biotechnol 2016; 180:668-681. [PMID: 27193258 DOI: 10.1007/s12010-016-2123-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Accepted: 05/06/2016] [Indexed: 11/26/2022]
Abstract
The present study was carried out to understand the interaction between fibroblast and 3T3-L1 preadipocyte cells under H2O2-induced oxidative stress condition. H2O2 (40 μM) was added in co-culture and monoculture of fibroblast and 3T3-L1 cell. The cells in the lower well were harvested for analysis and the process was carried out for both cells. The cell growth, oxidative stress markers, and antioxidant enzymes were analyzed. Additionally, the mRNA expressions of caspase-3 and caspase-7 were selected for analysis of apoptotic pathways and TNF-α and NF-κB were analyzed for inflammatory pathways. The adipogenic marker such as adiponectin and PPAR-γ and collagen synthesis markers such as LOX and BMP-1 were analyzed in the co-culture of fibroblast and 3T3-L1 cells. Cell viability and antioxidant enzymes were significantly increased in the co-culture compared to the monoculture under stress condition. The apoptotic, inflammatory, adipogenic, and collagen-synthesized markers were significantly altered in H2O2-induced co-culture of fibroblast and 3T3-L1 cells when compared with the monoculture of H2O2-induced fibroblast and 3T3-L1 cells. In addition, the confocal microscopical investigation indicated that the co-culture of H2O2-induced 3T3-L1 and fibroblast cells increases collagen type I and type III expression. From our results, we suggested that co-culture of fat cell (3T3-L1) and fibroblast cells may influence/regulate each other and made the cells able to withstand against oxidative stress and aging. It is conceivable that the same mechanism might have been occurring from cell to cell while animals are stressed by various environmental conditions.
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Affiliation(s)
| | - Sidong Kim
- Animal Research Institute, National Institute of Animal Science, Daegangrungmyun Pyuygchanggun, Kwangwondo, Seoul, 25340, South Korea
| | - Inho Hwang
- Department of Animal Science and BK21 PLUS Program, Chonbuk National University, Jeonju, 561-756, South Korea.
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18
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Nelson MR, Roy K. Bone-marrow mimicking biomaterial niches for studying hematopoietic stem and progenitor cells. J Mater Chem B 2016; 4:3490-3503. [DOI: 10.1039/c5tb02644j] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This review discusses the considerations and approaches that have been employed for designing biomaterial based cultures for replicating the hematopoietic stem and progenitor cell niche.
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Affiliation(s)
- Michael R. Nelson
- Wallace H. Coulter Department of Biomedical Engineering at the Georgia Tech and Emory University
- The Parker H. Petit Institute for Bioengineering and Biosciences
- Georgia Institute of Technology
- Atlanta
- USA
| | - Krishnendu Roy
- Wallace H. Coulter Department of Biomedical Engineering at the Georgia Tech and Emory University
- The Parker H. Petit Institute for Bioengineering and Biosciences
- Georgia Institute of Technology
- Atlanta
- USA
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19
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Occhetta P, Glass N, Otte E, Rasponi M, Cooper-White JJ. Stoichiometric control of live cell mixing to enable fluidically-encoded co-culture models in perfused microbioreactor arrays. Integr Biol (Camb) 2016; 8:194-204. [DOI: 10.1039/c5ib00311c] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A cell mixer microbioreactor array platform that permits the rapid establishment of perfused cell co-culture models in a high-throughput, programmable fashion.
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Affiliation(s)
- P Occhetta
- Australian Institute of Bioengineering and Nanotechnology, The University of Queensland, Brisbane, QLD, Australia.
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20
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Zhou Z, Gao M, Liu Q, Tao MDJ. Comprehensive transcriptome analysis of mesenchymal stem cells in elderly patients with osteoporosis. Aging Clin Exp Res 2015; 27:595-601. [PMID: 25771989 DOI: 10.1007/s40520-015-0346-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2014] [Accepted: 02/12/2015] [Indexed: 02/07/2023]
Abstract
OBJECTIVE To explore the role of aging in the pathogenesis of osteoporosis, several differentially expressed genes (DEGs) and altered biological pathways were identified in mesenchymal stem cells (MSCs) in elderly patients with osteoporosis. METHODS Raw data were downloaded from Gene Expression Omnibus database. A total of 14 human MSC samples were available, including five samples from elderly patients suffering from osteoporosis, five controls from young non-osteoporotic donors and five controls from old non-osteoporotic donors. The DEGs were identified using LIMMA package among the three groups. Gene ontology and KEGG pathway analysis were carried out using DAVID. A protein-protein interaction (PPI) network of DEGs was constructed with STRING and then visualized with Cytoscape. RESULTS A total of 3179 DEGs were screened, including 1071 up- and 2108 down-regulated genes. Compared with young and old controls, 271 and 781 genes were up-regulated in osteoporosis, respectively, and 17 genes were shared. Function and pathway enrichment showed that the up-regulated genes in osteoporosis were involved in extracellular matrix (ECM)-receptor interaction, focal adhesion and mammalian target of rapamycin signaling pathway. Moreover, a range of genes linked to cell adhesion, ECM-receptor interaction and cell cycle were revealed in the PPI network, such as transforming growth factor beta 1, insulin-like growth factor 2 and integrin beta 2. CONCLUSION A number of DEGs and altered pathways were screened in osteoporosis. Our study provided insights into the role of aging in the pathogenesis of osteoporosis and some DEGs might be potential biomarkers for osteoporosis.
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Unser AM, Tian Y, Xie Y. Opportunities and challenges in three-dimensional brown adipogenesis of stem cells. Biotechnol Adv 2015; 33:962-79. [PMID: 26231586 DOI: 10.1016/j.biotechadv.2015.07.005] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2015] [Revised: 07/07/2015] [Accepted: 07/23/2015] [Indexed: 12/21/2022]
Abstract
The formation of brown adipose tissue (BAT) via brown adipogenesis has become a notable process due to its ability to expend energy as heat with implications in the treatment of metabolic disorders and obesity. With the advent of complexity within white adipose tissue (WAT) along with inducible brown adipocytes (also known as brite and beige), there has been a surge in deciphering adipocyte biology as well as in vivo adipogenic microenvironments. A therapeutic outcome would benefit from understanding early events in brown adipogenesis, which can be accomplished by studying cellular differentiation. Pluripotent stem cells are an efficient model for differentiation and have been directed towards both white adipogenic and brown adipogenic lineages. The stem cell microenvironment greatly contributes to terminal cell fate and as such, has been mimicked extensively by various polymers including those that can form 3D hydrogel constructs capable of biochemical and/or mechanical modifications and modulations. Using bioengineering approaches towards the creation of 3D cell culture arrangements is more beneficial than traditional 2D culture in that it better recapitulates the native tissue biochemically and biomechanically. In addition, such an approach could potentially protect the tissue formed from necrosis and allow for more efficient implantation. In this review, we highlight the promise of brown adipocytes with a focus on brown adipogenic differentiation of stem cells using bioengineering approaches, along with potential challenges and opportunities that arise when considering the energy expenditure of BAT for prospective therapeutics.
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Affiliation(s)
- Andrea M Unser
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road Albany, NY 12203, USA
| | - Yangzi Tian
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road Albany, NY 12203, USA
| | - Yubing Xie
- Colleges of Nanoscale Science and Engineering, SUNY Polytechnic Institute, 257 Fuller Road Albany, NY 12203, USA.
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Cosson S, Otte EA, Hezaveh H, Cooper-White JJ. Concise review: tailoring bioengineered scaffolds for stem cell applications in tissue engineering and regenerative medicine. Stem Cells Transl Med 2015; 4:156-64. [PMID: 25575526 PMCID: PMC4303362 DOI: 10.5966/sctm.2014-0203] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2014] [Accepted: 12/10/2014] [Indexed: 01/16/2023] Open
Abstract
The potential for the clinical application of stem cells in tissue regeneration is clearly significant. However, this potential has remained largely unrealized owing to the persistent challenges in reproducibly, with tight quality criteria, and expanding and controlling the fate of stem cells in vitro and in vivo. Tissue engineering approaches that rely on reformatting traditional Food and Drug Administration-approved biomedical polymers from fixation devices to porous scaffolds have been shown to lack the complexity required for in vitro stem cell culture models or translation to in vivo applications with high efficacy. This realization has spurred the development of advanced mimetic biomaterials and scaffolds to increasingly enhance our ability to control the cellular microenvironment and, consequently, stem cell fate. New insights into the biology of stem cells are expected to eventuate from these advances in material science, in particular, from synthetic hydrogels that display physicochemical properties reminiscent of the natural cell microenvironment and that can be engineered to display or encode essential biological cues. Merging these advanced biomaterials with high-throughput methods to systematically, and in an unbiased manner, probe the role of scaffold biophysical and biochemical elements on stem cell fate will permit the identification of novel key stem cell behavioral effectors, allow improved in vitro replication of requisite in vivo niche functions, and, ultimately, have a profound impact on our understanding of stem cell biology and unlock their clinical potential in tissue engineering and regenerative medicine.
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Affiliation(s)
- Steffen Cosson
- Tissue Engineering and Microfluidics Laboratory, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Queensland, Australia; Commonwealth Scientific and Industrial Research Organization, Material Science and Engineering, Clayton, Victoria, Australia; University of Queensland School of Chemical Engineering, St. Lucia, Queensland, Australia
| | - Ellen A Otte
- Tissue Engineering and Microfluidics Laboratory, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Queensland, Australia; Commonwealth Scientific and Industrial Research Organization, Material Science and Engineering, Clayton, Victoria, Australia; University of Queensland School of Chemical Engineering, St. Lucia, Queensland, Australia
| | - Hadi Hezaveh
- Tissue Engineering and Microfluidics Laboratory, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Queensland, Australia; Commonwealth Scientific and Industrial Research Organization, Material Science and Engineering, Clayton, Victoria, Australia; University of Queensland School of Chemical Engineering, St. Lucia, Queensland, Australia
| | - Justin J Cooper-White
- Tissue Engineering and Microfluidics Laboratory, Australian Institute for Bioengineering and Nanotechnology, University of Queensland, St. Lucia, Queensland, Australia; Commonwealth Scientific and Industrial Research Organization, Material Science and Engineering, Clayton, Victoria, Australia; University of Queensland School of Chemical Engineering, St. Lucia, Queensland, Australia
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Janeczek AA, Scarpa E, A. Newman T, Oreffo ROC, S. Tare R, Evans ND. Skeletal Stem Cell Niche of the Bone Marrow. TISSUE-SPECIFIC STEM CELL NICHE 2015. [DOI: 10.1007/978-3-319-21705-5_11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Jin X, Yu H, Kong N, Chang J, Li H, Ye J. Superparamagnetic plasmonic nanoshells for improved imaging, separation and seeding of co-cultured cells. J Mater Chem B 2015; 3:7787-7795. [DOI: 10.1039/c5tb01420d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional superparamagnetic nanoshells were applied for improved 2D and 3D two-photon luminescence imaging, separation and seeding of co-cultured cells.
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Affiliation(s)
- Xiulong Jin
- School of Biomedical Engineering & Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Hongfei Yu
- School of Biomedical Engineering & Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Ni Kong
- School of Biomedical Engineering & Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Jiang Chang
- Shanghai institute of Ceramics
- Chinese Academy of Sciences
- Shanghai 200050
- China
| | - Haiyan Li
- School of Biomedical Engineering & Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- China
| | - Jian Ye
- School of Biomedical Engineering & Med-X Research Institute
- Shanghai Jiao Tong University
- Shanghai 200030
- China
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Abstract
Osteopenia and osteoporosis are common manifestations in inflammatory bowel diseases (IBD) but the pathogenetic mechanism of bone loss in IBD is only partially understood. There is evidence that fat mass is an important determinant of the bone mineral density and adipose-derived factors seem to play an important role for the association between fat mass and bone mass. The association between adiposity and low bone density is rather poorly studied in IBD, but emerging data on adipokines in IBD in relation to osteoporosis provide a novel pathophysiological concept that may shed light on the etiology of bone loss in IBD. It could be suggested that adipokines interfere in bone metabolism by altering the sensitive balance between osteoblasts and osteoclasts although further studies in this setting are needed.
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Brandau S, Jakob M, Bruderek K, Bootz F, Giebel B, Radtke S, Mauel K, Jäger M, Flohé SB, Lang S. Mesenchymal stem cells augment the anti-bacterial activity of neutrophil granulocytes. PLoS One 2014; 9:e106903. [PMID: 25238158 PMCID: PMC4169522 DOI: 10.1371/journal.pone.0106903] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 08/11/2014] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND Mesenchymal stem cells (MSCs) participate in the regulation of inflammation and innate immunity, for example by responding to pathogen-derived signals and by regulating the function of innate immune cells. MSCs from the bone-marrow and peripheral tissues share common basic cell-biological functions. However, it is unknown whether these MSCs exhibit different responses to microbial challenge and whether this response subsequently modulates the regulation of inflammatory cells by MSCs. METHODOLOGY/PRINCIPAL FINDINGS We isolated MSCs from human bone-marrow (bmMSCs) and human salivary gland (pgMSCs). Expression levels of TLR4 and LPS-responsive molecules were determined by flow cytometry and quantitative PCR. Cytokine release was determined by ELISA. The effect of supernatants from unstimulated and LPS-stimulated MSCs on recruitment, cytokine secretion, bacterial clearance and oxidative burst of polymorphonuclear neutrophil granulocytes (PMN) was tested in vitro. Despite minor quantitative differences, bmMSCs and pgMSCs showed a similar cell biological response to bacterial endotoxin. Both types of MSCs augmented anti-microbial functions of PMNs. LPS stimulation, particularly of bmMSCs, further augmented MSC-mediated activation of PMN [corrected]. CONCLUSIONS/SIGNIFICANCE This study suggests that MSCs may contribute to the resolution of infection and inflammation by promoting the anti-microbial activity of PMNs. This property is exerted by MSCs derived from both the bone-marrow and peripheral glandular tissue.
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Affiliation(s)
- Sven Brandau
- Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
- * E-mail:
| | - Mark Jakob
- Department of Otorhinolaryngology, University Hospital Bonn, Bonn, Germany
| | - Kirsten Bruderek
- Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
| | - Friedrich Bootz
- Department of Otorhinolaryngology, University Hospital Bonn, Bonn, Germany
| | - Bernd Giebel
- Institute of Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - Stefan Radtke
- Institute of Transfusion Medicine, University Hospital Essen, Essen, Germany
| | - Katharina Mauel
- Surgical Research, Department of Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Marcus Jäger
- Surgical Research, Department of Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Stefanie B. Flohé
- Surgical Research, Department of Trauma Surgery, University Hospital Essen, Essen, Germany
| | - Stephan Lang
- Department of Otorhinolaryngology, University Hospital Essen, Essen, Germany
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