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Gualdi F, Oliva B, Piñero J. Predicting gene disease associations with knowledge graph embeddings for diseases with curtailed information. NAR Genom Bioinform 2024; 6:lqae049. [PMID: 38745993 PMCID: PMC11091931 DOI: 10.1093/nargab/lqae049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 03/08/2024] [Accepted: 04/24/2024] [Indexed: 05/16/2024] Open
Abstract
Knowledge graph embeddings (KGE) are a powerful technique used in the biomedical domain to represent biological knowledge in a low dimensional space. However, a deep understanding of these methods is still missing, and, in particular, regarding their applications to prioritize genes associated with complex diseases with reduced genetic information. In this contribution, we built a knowledge graph (KG) by integrating heterogeneous biomedical data and generated KGE by implementing state-of-the-art methods, and two novel algorithms: Dlemb and BioKG2vec. Extensive testing of the embeddings with unsupervised clustering and supervised methods showed that KGE can be successfully implemented to predict genes associated with diseases and that our novel approaches outperform most existing algorithms in both scenarios. Our findings underscore the significance of data quality, preprocessing, and integration in achieving accurate predictions. Additionally, we applied KGE to predict genes linked to Intervertebral Disc Degeneration (IDD) and illustrated that functions pertinent to the disease are enriched within the prioritized gene set.
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Affiliation(s)
- Francesco Gualdi
- Integrative Biomedical Informatics, Research Programme on Biomedical Informatics (IBI-GRIB), Hospital del Mar Medical Research Institute (IMIM), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, C/Dr Aiguader 88, E-08003 Barcelona, Spain
- Structural Bioinformatics Lab, Research Programme on Biomedical Informatics (SBI-GRIB), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, C/Dr Aiguader 88, E-08003 Barcelona, Spain
| | - Baldomero Oliva
- Structural Bioinformatics Lab, Research Programme on Biomedical Informatics (SBI-GRIB), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, C/Dr Aiguader 88, E-08003 Barcelona, Spain
| | - Janet Piñero
- Integrative Biomedical Informatics, Research Programme on Biomedical Informatics (IBI-GRIB), Hospital del Mar Medical Research Institute (IMIM), Department of Experimental and Health Sciences, Universitat Pompeu Fabra, C/Dr Aiguader 88, E-08003 Barcelona, Spain
- Medbioinformatics Solutions SL, Barcelona, Spain
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2
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Fang C, Peng Z, Sang Y, Ren Z, Ding H, Yuan H, Hu K. Copper in Cancer: from transition metal to potential target. Hum Cell 2024; 37:85-100. [PMID: 37751026 DOI: 10.1007/s13577-023-00985-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 09/11/2023] [Indexed: 09/27/2023]
Abstract
In recent years, with the continuous in-depth exploration of the molecular mechanisms of tumorigenesis, numerous potential new targets for cancer treatment have been identified, some of which have been further developed in clinical practice and have produced positive outcomes. Notably, researchers' initial motivation for studying copper metabolism in cancer stems from the fact that copper is a necessary trace element for organisms and is closely connected to body growth and metabolism. Moreover, over the past few decades, considerable progress has been made in understanding the molecular processes and correlations between copper and cancer. Certain achievements have been made in the development and use of relevant clinical medications. The concept of "cuproptosis," a novel concept that differs from previous forms of cell death, was first proposed by a group of scientists last year, offering fresh perspectives on the targeting capabilities of copper in the treatment of cancer. In this review, we introduced the fundamental physiological functions of copper, the key components of copper metabolism, and a summary of the current research contributions on the connection between copper and cancer. In addition, the development of new copper-based nanomaterials and their associated mechanisms of action are discussed. Finally, we described how the susceptibility of cancer cells to this metallic nutrition could be leveraged to further improve the existing cancer treatment paradigm in the new setting.
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Affiliation(s)
- Can Fang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, NO. 218 Jixi Road, Shushan District, Hefei, Anhui, 230022, People's Republic of China
| | - Zhiwei Peng
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, NO. 218 Jixi Road, Shushan District, Hefei, Anhui, 230022, People's Republic of China
| | - Yaru Sang
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Bengbu Medical College, Bengbu, China
| | - Zihao Ren
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, NO. 218 Jixi Road, Shushan District, Hefei, Anhui, 230022, People's Republic of China
| | - Huiming Ding
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, NO. 218 Jixi Road, Shushan District, Hefei, Anhui, 230022, People's Republic of China
| | - Haibo Yuan
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, NO. 218 Jixi Road, Shushan District, Hefei, Anhui, 230022, People's Republic of China
| | - Kongwang Hu
- Department of General Surgery, Fuyang Hospital of Anhui Medical University, Fuyang, China.
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, NO. 218 Jixi Road, Shushan District, Hefei, Anhui, 230022, People's Republic of China.
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3
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Hollander JM, Goraltchouk A, Rawal M, Liu J, Luppino F, Zeng L, Seregin A. Adeno-Associated Virus-Delivered Fibroblast Growth Factor 18 Gene Therapy Promotes Cartilage Anabolism. Cartilage 2023; 14:492-505. [PMID: 36879540 PMCID: PMC10807742 DOI: 10.1177/19476035231158774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 01/21/2023] [Accepted: 01/31/2023] [Indexed: 03/08/2023] Open
Abstract
OBJECTIVE To determine the characterization of chondrogenic properties of adeno-associated virus type 2 (AAV2)-delivered hFGF18, via analysis of effects on primary human chondrocyte proliferation, gene expression, and in vivo cartilage thickness changes in the tibia and meniscus. DESIGN Chondrogenic properties of AAV2-FGF18 were compared with recombinant human FGF18 (rhFGF18) in vitro relative to phosphate-buffered saline (PBS) and AAV2-GFP negative controls. Transcriptome analysis was performed using RNA-seq on primary human chondrocytes treated with rhFGF18 and AAV2-FGF18, relative to PBS. Durability of gene expression was assessed using AAV2-nLuc and in vivo imaging. Chondrogenesis was evaluated by measuring weight-normalized thickness in the tibial plateau and the white zone of the anterior horn of the medial meniscus in Sprague-Dawley rats. RESULTS AAV2-FGF18 elicits chondrogenesis by promoting proliferation and upregulation of hyaline cartilage-associated genes, including COL2A1 and HAS2, while downregulating fibrocartilage-associated COL1A1. This activity translates to statistically significant, dose-dependent increases in cartilage thickness in vivo within the area of the tibial plateau, following a single intra-articular injection of the AAV2-FGF18 or a regimen of 6 twice-weekly injections of rhFGF18 protein relative to AAV2-GFP. In addition, we observed AAV2-FGF18-induced and rhFGF18-induced increases in cartilage thickness of the anterior horn of the medial meniscus. Finally, the single-injection AAV2-delivered hFGF18 offers a potential safety advantage over the multi-injection protein treatment as evidenced by reduced joint swelling over the study period. CONCLUSION AAV2-delivered hFGF18 represents a promising strategy for the restoration of hyaline cartilage by promoting extracellular matrix production, chondrocyte proliferation, and increasing articular and meniscal cartilage thickness in vivo after a single intra-articular injection.
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Affiliation(s)
- Judith M. Hollander
- Department of Immunology, Tufts University School of Medicine, Boston, MA, USA
| | | | - Miraj Rawal
- Department of Immunology, Tufts University School of Medicine, Boston, MA, USA
| | - Jingshu Liu
- Department of Immunology, Tufts University School of Medicine, Boston, MA, USA
| | | | - Li Zeng
- Department of Immunology, Tufts University School of Medicine, Boston, MA, USA
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4
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Ciaffaglione V, Rizzarelli E. Carnosine, Zinc and Copper: A Menage a Trois in Bone and Cartilage Protection. Int J Mol Sci 2023; 24:16209. [PMID: 38003398 PMCID: PMC10671046 DOI: 10.3390/ijms242216209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 10/31/2023] [Accepted: 11/09/2023] [Indexed: 11/26/2023] Open
Abstract
Dysregulated metal homeostasis is associated with many pathological conditions, including arthritic diseases. Osteoarthritis and rheumatoid arthritis are the two most prevalent disorders that damage the joints and lead to cartilage and bone destruction. Recent studies show that the levels of zinc (Zn) and copper (Cu) are generally altered in the serum of arthritis patients. Therefore, metal dyshomeostasis may reflect the contribution of these trace elements to the disease's pathogenesis and manifestations, suggesting their potential for prognosis and treatment. Carnosine (Car) also emerged as a biomarker in arthritis and exerts protective and osteogenic effects in arthritic joints. Notably, its zinc(II) complex, polaprezinc, has been recently proposed as a drug-repurposing candidate for bone fracture healing. On these bases, this review article aims to provide an overview of the beneficial roles of Cu and Zn in bone and cartilage health and their potential application in tissue engineering. The effects of Car and polaprezinc in promoting cartilage and bone regeneration are also discussed. We hypothesize that polaprezinc could exchange Zn for Cu, present in the culture media, due to its higher sequestering ability towards Cu. However, future studies should unveil the potential contribution of Cu in the beneficial effects of polaprezinc.
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Affiliation(s)
- Valeria Ciaffaglione
- Institute of Crystallography, National Council of Research (CNR), P. Gaifami 18, 95126 Catania, Italy
| | - Enrico Rizzarelli
- Institute of Crystallography, National Council of Research (CNR), P. Gaifami 18, 95126 Catania, Italy
- Department of Chemical Sciences, University of Catania, Viale Andrea Doria 6, 95125 Catania, Italy
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Liao Z, Han X, Wang Y, Shi J, Zhang Y, Zhao H, Zhang L, Jiang M, Liu M. Differential Metabolites in Osteoarthritis: A Systematic Review and Meta-Analysis. Nutrients 2023; 15:4191. [PMID: 37836475 PMCID: PMC10574084 DOI: 10.3390/nu15194191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/08/2023] [Accepted: 09/12/2023] [Indexed: 10/15/2023] Open
Abstract
(1) Many studies have attempted to utilize metabolomic approaches to explore potential biomarkers for the early detection of osteoarthritis (OA), but consistent and high-level evidence is still lacking. In this study, we performed a systematic review and meta-analysis of differential small molecule metabolites between OA patients and healthy individuals to screen promising candidates from a large number of samples with the aim of informing future prospective studies. (2) Methods: We searched the EMBASE, the Cochrane Library, PubMed, Web of Science, Wan Fang Data, VIP Date, and CNKI up to 11 August 2022, and selected relevant records based on inclusion criteria. The risk of bias was assessed using the Newcastle-Ottawa quality assessment scale. We performed qualitative synthesis by counting the frequencies of changing directions and conducted meta-analyses using the random effects model and the fixed-effects model to calculate the mean difference and 95% confidence interval. (3) Results: A total of 3798 records were identified and 13 studies with 495 participants were included. In the 13 studies, 132 kinds of small molecule differential metabolites were extracted, 58 increased, 57 decreased and 17 had direction conflicts. Among them, 37 metabolites appeared more than twice. The results of meta-analyses among four studies showed that three metabolites increased, and eight metabolites decreased compared to healthy controls (HC). (4) Conclusions: The main differential metabolites between OA and healthy subjects were amino acids (AAs) and their derivatives, including tryptophan, lysine, leucine, proline, phenylalanine, glutamine, dimethylglycine, citrulline, asparagine, acetylcarnitine and creatinine (muscle metabolic products), which could be potential biomarkers for predicting OA.
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Affiliation(s)
- Zeqi Liao
- Medical Experimental Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (Y.W.); (J.S.); (Y.Z.); (H.Z.)
| | - Xu Han
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China;
| | - Yuhe Wang
- Medical Experimental Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (Y.W.); (J.S.); (Y.Z.); (H.Z.)
| | - Jingru Shi
- Medical Experimental Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (Y.W.); (J.S.); (Y.Z.); (H.Z.)
| | - Yuanyue Zhang
- Medical Experimental Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (Y.W.); (J.S.); (Y.Z.); (H.Z.)
| | - Hongyan Zhao
- Medical Experimental Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (Y.W.); (J.S.); (Y.Z.); (H.Z.)
| | - Lei Zhang
- National Data Center of Traditional Chinese Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China;
| | - Miao Jiang
- Institute of Basic Research in Clinical Medicine, China Academy of Chinese Medical Sciences, Beijing 100700, China;
| | - Meijie Liu
- Medical Experimental Center, China Academy of Chinese Medical Sciences, Beijing 100700, China; (Z.L.); (Y.W.); (J.S.); (Y.Z.); (H.Z.)
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6
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Pan D, Zhong J, Zhang J, Dong H, Zhao D, Zhang H, Yao B. Function and regulation of nuclear factor 1 X-type on chondrocyte proliferation and differentiation. Gene 2023; 881:147620. [PMID: 37433356 DOI: 10.1016/j.gene.2023.147620] [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: 12/30/2022] [Revised: 05/26/2023] [Accepted: 07/05/2023] [Indexed: 07/13/2023]
Abstract
Nuclear factor 1 X-type (Nfix) is a transcription factor related to mental and physical development. However, very few studies have reported the effects of Nfix on cartilage. This study aims to reveal the influence of Nfix on the proliferation and differentiation of chondrocytes, and to explore its potential action mechanism. We isolated primary chondrocytes from the costal cartilage of newborn C57BL/6 mice and with Nfix overexpression or silencing treatment. We used Alcian blue staining and found that Nfix overexpression significantly promoted ECM synthesis in chondrocytes while silencing inhibited ECM synthesis. Using RNA-seq technology to study the expression pattern of Nfix in primary chondrocytes. We found that Nfix overexpression significantly up-regulated genes that are related to chondrocyte proliferation and extracellular matrix (ECM) synthesis and significantly down-regulated genes related to chondrocyte differentiation and ECM degradation. Nfix silencing, however, significantly up-regulated genes associated with cartilage catabolism and significantly down-regulated genes associated with cartilage growth promotion. Furthermore, Nfix exerted a positive regulatory effect on Sox9, and we propose that Nfix may promote chondrocyte proliferation and inhibit differentiation by stimulating Sox9 and its downstream genes. Our findings suggest that Nfix may be a potential target for the regulation of chondrocyte proliferation and differentiation.
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Affiliation(s)
- Daian Pan
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130021, China; Northeast Asia Research Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China; Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Jinghong Zhong
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Jingcheng Zhang
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Haisi Dong
- Northeast Asia Research Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Daqing Zhao
- Northeast Asia Research Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - He Zhang
- Research Center of Traditional Chinese Medicine, The Affiliated Hospital to Changchun University of Chinese Medicine, Changchun 130021, China; Northeast Asia Research Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China.
| | - Baojin Yao
- Northeast Asia Research Institute of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun 130117, China.
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7
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Botos MA, Arora P, Chouvardas P, Mercader N. Transcriptomic data meta-analysis reveals common and injury model specific gene expression changes in the regenerating zebrafish heart. Sci Rep 2023; 13:5418. [PMID: 37012284 PMCID: PMC10070245 DOI: 10.1038/s41598-023-32272-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Accepted: 03/24/2023] [Indexed: 04/05/2023] Open
Abstract
Zebrafish have the capacity to fully regenerate the heart after an injury, which lies in sharp contrast to the irreversible loss of cardiomyocytes after a myocardial infarction in humans. Transcriptomics analysis has contributed to dissect underlying signaling pathways and gene regulatory networks in the zebrafish heart regeneration process. This process has been studied in response to different types of injuries namely: ventricular resection, ventricular cryoinjury, and genetic ablation of cardiomyocytes. However, there exists no database to compare injury specific and core cardiac regeneration responses. Here, we present a meta-analysis of transcriptomic data of regenerating zebrafish hearts in response to these three injury models at 7 days post injury (7dpi). We reanalyzed 36 samples and analyzed the differentially expressed genes (DEG) followed by downstream Gene Ontology Biological Processes (GO:BP) analysis. We found that the three injury models share a common core of DEG encompassing genes involved in cell proliferation, the Wnt signaling pathway and genes that are enriched in fibroblasts. We also found injury-specific gene signatures for resection and genetic ablation, and to a lower extent the cryoinjury model. Finally, we present our data in a user-friendly web interface that displays gene expression signatures across different injury types and highlights the importance to consider injury-specific gene regulatory networks when interpreting the results related to cardiac regeneration in the zebrafish. The analysis is freely available at: https://mybinder.org/v2/gh/MercaderLabAnatomy/PUB_Botos_et_al_2022_shinyapp_binder/HEAD?urlpath=shiny/bus-dashboard/ .
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Affiliation(s)
- Marius Alexandru Botos
- Institute of Anatomy, University of Bern, 3012, Bern, Switzerland
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland
- Laboratory of Systems Biology and Genetics, Institute of Bioengineering, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland
- Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland
| | - Prateek Arora
- Institute of Anatomy, University of Bern, 3012, Bern, Switzerland
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland
| | - Panagiotis Chouvardas
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland
- Department of Urology, Inselspital, Bern University Hospital, 3010, Bern, Switzerland
| | - Nadia Mercader
- Institute of Anatomy, University of Bern, 3012, Bern, Switzerland.
- Department for Biomedical Research, University of Bern, 3012, Bern, Switzerland.
- Centro Nacional de Investigaciones Cardiovasculares CNIC, 28029, Madrid, Spain.
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8
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Frerker N, Karlsen TA, Stensland M, Nyman TA, Rayner S, Brinchmann JE. Comparison between articular chondrocytes and mesenchymal stromal cells for the production of articular cartilage implants. Front Bioeng Biotechnol 2023; 11:1116513. [PMID: 36896010 PMCID: PMC9989206 DOI: 10.3389/fbioe.2023.1116513] [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: 12/05/2022] [Accepted: 01/31/2023] [Indexed: 02/23/2023] Open
Abstract
Focal lesions of articular cartilage give rise to pain and reduced joint function and may, if left untreated, lead to osteoarthritis. Implantation of in vitro generated, scaffold-free autologous cartilage discs may represent the best treatment option. Here we compare articular chondrocytes (ACs) and bone marrow-derived mesenchymal stromal cells (MSCs) for their ability to make scaffold-free cartilage discs. Articular chondrocytes produced more extracellular matrix per seeded cell than mesenchymal stromal cells. Quantitative proteomics analysis showed that articular chondrocyte discs contained more articular cartilage proteins, while mesenchymal stromal cell discs had more proteins associated with cartilage hypertrophy and bone formation. Sequencing analysis revealed more microRNAs associated with normal cartilage in articular chondrocyte discs, and large-scale target predictions, performed for the first time for in vitro chondrogenesis, suggested that differential expression of microRNAs in the two disc types were important mechanisms behind differential synthesis of proteins. We conclude that articular chondrocytes should be preferred over mesenchymal stromal cells for tissue engineering of articular cartilage.
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Affiliation(s)
- Nadine Frerker
- Department of Immunology, Oslo University Hospital, Oslo, Norway
| | - Tommy A Karlsen
- Department of Immunology, Oslo University Hospital, Oslo, Norway
| | - Maria Stensland
- Department of Immunology, Oslo University Hospital, Oslo, Norway
| | - Tuula A Nyman
- Department of Immunology, Oslo University Hospital, Oslo, Norway.,Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Simon Rayner
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway.,Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.,Hybrid Technology Hub-Centre of Excellence, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Jan E Brinchmann
- Department of Immunology, Oslo University Hospital, Oslo, Norway.,Department of Molecular Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Liu Y, Zhu J, Xu L, Wang B, Lin W, Luo Y. Copper regulation of immune response and potential implications for treating orthopedic disorders. Front Mol Biosci 2022; 9:1065265. [PMID: 36545506 PMCID: PMC9762617 DOI: 10.3389/fmolb.2022.1065265] [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: 10/09/2022] [Accepted: 11/17/2022] [Indexed: 12/12/2022] Open
Abstract
Copper is an indispensable trace metal element in human body, and copper deficiency is rare in clinic. However, diseases associated with serum copper deficiency, such as leukopenia, neutropenia, arthritis, osteoporosis, and bone defects, are well known. Copper ions can also achieve the effect of fighting pathogenic bacteria through the "contact killing" characteristic. Copper ion is also an important cofactor of bone matrix synthase, plays an important role in the pathophysiology of orthopedic diseases. The present review highlights the biological functions of copper in immunity, bone diseases and stem cells, as well as potential drug development targeting copper status for diagnostics and therapeutics of copper-associated bone diseases.
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Affiliation(s)
- Yamei Liu
- College of Basic Medical, Guangzhou University of Chinese Medicine, Guangzhou, China
- Research Center of Integrative Medicine, School of Basic Medical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Junlang Zhu
- Department of Trauma and Foot-Ankle Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liangliang Xu
- Lingnan Medical Research Center, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Bin Wang
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Weiping Lin
- The Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yiwen Luo
- Department of Traumatology, The Third Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
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10
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Alleviation of osteoarthritis by intra-articular transplantation of circulating mesenchymal stem cells. Biochem Biophys Res Commun 2022; 636:25-32. [DOI: 10.1016/j.bbrc.2022.10.064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 09/20/2022] [Accepted: 10/18/2022] [Indexed: 11/19/2022]
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Zhang S, Zhang L, Lu H, Yao Y, Liu X, Hou J. A cuproptosis and copper metabolism–related gene prognostic index for head and neck squamous cell carcinoma. Front Oncol 2022; 12:955336. [PMID: 36072790 PMCID: PMC9441563 DOI: 10.3389/fonc.2022.955336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2022] [Accepted: 08/01/2022] [Indexed: 11/13/2022] Open
Abstract
BackgroundThe purpose of this study was to identify the prognostic value of cuproptosis and copper metabolism–related genes, to clarify their molecular and immunological characteristics, and to elucidate their benefits in head and neck squamous cell carcinoma (HNSCC).MethodsThe details of human cuproptosis and copper metabolism–related genes were searched and filtered from the msigdb database and the latest literature. To identify prognostic genes associated with cuproptosis and copper metabolism, we used least absolute shrinkage and selection operator regression, and this coefficient was used to set up a prognostic risk score model. HNSCC samples were divided into two groups according to the median risk. Afterwards, the function and immune characteristics of these genes in HNSCC were analyzed.ResultsThe 14-gene signature was constructed to classify HNSCC patients into low-risk and high-risk groups according to the risk level. In the The Cancer Genome Atlas (TCGA) cohort, the overall survival (OS) rate of the high-risk group was lower than that of the low-risk group (P < 0.0001). The area under the curve of the time-dependent Receiver Operator Characteristic (ROC) curve assessed the good performance of the genetic signature in predicting OS and showed similar performance in the external validation cohort. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes enrichment assays and Protein-Protein Interaction (PPI) protein networks have been used to explore signaling pathways and potential mechanisms that were markedly active in patients with HNSCC. Furthermore, the 14 cuproptosis and copper metabolism-related genes were significantly correlated with the immune microenvironment, suggesting that these genes may be linked with the immune regulation and development of HNSCC.ConclusionsOur results emphasize the significance of cuproptosis and copper metabolism as a predictive biomarker for HNSCC, and its expression levels seem to be correlated with immune- related features; thus, they may be a possible biomarker for HNSCC prognosis.
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Affiliation(s)
- Shuaiyuan Zhang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Lujin Zhang
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Huanzi Lu
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Yihuan Yao
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Xiaoyong Liu
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
| | - Jingsong Hou
- Department of Oral and Maxillofacial Surgery, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, Guangzhou, China
- *Correspondence: Jingsong Hou,
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Su Y, Zhang X, Li S, Xie W, Guo J. Emerging roles of the copper-CTR1 axis in tumorigenesis. Mol Cancer Res 2022; 20:1339-1353. [PMID: 35604085 DOI: 10.1158/1541-7786.mcr-22-0056] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/09/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022]
Abstract
Physiological roles of copper in metabolic homeostasis have been well established, however, whether and how copper is dysregulated in tumors and contributes to tumorigenesis are not recapitulated. Here, we comprehensively summarize the potential origins of copper accumulation in diseases especially in cancers by dysregulating copper transporter 1 (CTR1) or ATPase copper transporting alpha/beta (ATP7A/B) and further demonstrate the underlying mechanism of copper contributing to tumorigenesis. Specifically, in addition to modulating reactive oxygen species (ROS), angiogenesis, immune response, and metabolic homeostasis, copper recently has drawn more attention by directly binding to oncoproteins such as MEK, ULK, Memo, and PDK1 to activate distinct oncogenic signals and account for tumorigenesis. In the end, we disclose the emerging applications of copper in cancer diagnosis and highlight the promising strategies to target the copper-CTR1 axis for cancer therapies.
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Affiliation(s)
- Yaqing Su
- First Affiliated Hospital of Sun Yat-sen University, guangzhou, guangdong, China
| | - Xiaomei Zhang
- First Affiliated Hospital of Sun Yat-sen University, China
| | - Shaoqiang Li
- The First Affiliatd Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wei Xie
- First Affiliated Hospital of Sun Yat-sen University, China
| | - Jianping Guo
- First Affiliated Hospital of Sun Yat-sen University, guangzhou, guangdong, China
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13
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Burdușel AC, Gherasim O, Andronescu E, Grumezescu AM, Ficai A. Inorganic Nanoparticles in Bone Healing Applications. Pharmaceutics 2022; 14:770. [PMID: 35456604 PMCID: PMC9027776 DOI: 10.3390/pharmaceutics14040770] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Revised: 03/24/2022] [Accepted: 03/28/2022] [Indexed: 12/13/2022] Open
Abstract
Modern biomedicine aims to develop integrated solutions that use medical, biotechnological, materials science, and engineering concepts to create functional alternatives for the specific, selective, and accurate management of medical conditions. In the particular case of tissue engineering, designing a model that simulates all tissue qualities and fulfills all tissue requirements is a continuous challenge in the field of bone regeneration. The therapeutic protocols used for bone healing applications are limited by the hierarchical nature and extensive vascularization of osseous tissue, especially in large bone lesions. In this regard, nanotechnology paves the way for a new era in bone treatment, repair and regeneration, by enabling the fabrication of complex nanostructures that are similar to those found in the natural bone and which exhibit multifunctional bioactivity. This review aims to lay out the tremendous outcomes of using inorganic nanoparticles in bone healing applications, including bone repair and regeneration, and modern therapeutic strategies for bone-related pathologies.
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Affiliation(s)
- Alexandra-Cristina Burdușel
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
| | - Oana Gherasim
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Lasers Department, National Institute for Lasers, Plasma and Radiation Physics, 409 Atomiștilor Street, 077125 Magurele, Romania
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Academy of Romanian Scientists, 3 Ilfov Street, 050044 Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Academy of Romanian Scientists, 3 Ilfov Street, 050044 Bucharest, Romania
- Research Institute of the University of Bucharest—ICUB, University of Bucharest, 90–92 Panduri Road, 050657 Bucharest, Romania
| | - Anton Ficai
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.-C.B.); (O.G.); (A.M.G.); (A.F.)
- Academy of Romanian Scientists, 3 Ilfov Street, 050044 Bucharest, Romania
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14
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Xu J, Ji J, Jiao J, Zheng L, Hong Q, Tang H, Zhang S, Qu X, Yue B. 3D Printing for Bone-Cartilage Interface Regeneration. Front Bioeng Biotechnol 2022; 10:828921. [PMID: 35237582 PMCID: PMC8882993 DOI: 10.3389/fbioe.2022.828921] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2021] [Accepted: 01/25/2022] [Indexed: 12/12/2022] Open
Abstract
Due to the vasculature defects and/or the avascular nature of cartilage, as well as the complex gradients for bone-cartilage interface regeneration and the layered zonal architecture, self-repair of cartilage and subchondral bone is challenging. Currently, the primary osteochondral defect treatment strategies, including artificial joint replacement and autologous and allogeneic bone graft, are limited by their ability to simply repair, rather than induce regeneration of tissues. Meanwhile, over the past two decades, three-dimension (3D) printing technology has achieved admirable advancements in bone and cartilage reconstruction, providing a new strategy for restoring joint function. The advantages of 3D printing hybrid materials include rapid and accurate molding, as well as personalized therapy. However, certain challenges also exist. For instance, 3D printing technology for osteochondral reconstruction must simulate the histological structure of cartilage and subchondral bone, thus, it is necessary to determine the optimal bioink concentrations to maintain mechanical strength and cell viability, while also identifying biomaterials with dual bioactivities capable of simultaneously regenerating cartilage. The study showed that the regeneration of bone-cartilage interface is crucial for the repair of osteochondral defect. In this review, we focus on the significant progress and application of 3D printing technology for bone-cartilage interface regeneration, while also expounding the potential prospects for 3D printing technology and highlighting some of the most significant challenges currently facing this field.
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Affiliation(s)
- Jialian Xu
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Jindou Ji
- The First Clinical Medical College, Shandong University of Traditional Chinese Medicine, Jinan, China
| | - Juyang Jiao
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Liangjun Zheng
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Qimin Hong
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Haozheng Tang
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shutao Zhang
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xinhua Qu
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Xinhua Qu, ; Bing Yue,
| | - Bing Yue
- Department of Bone and Joint Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Xinhua Qu, ; Bing Yue,
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15
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Tissue Engineering of Canine Cartilage from Surgically Debrided Osteochondritis Dissecans Fragments. Ann Biomed Eng 2021; 50:56-77. [PMID: 34961892 PMCID: PMC8763830 DOI: 10.1007/s10439-021-02897-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 11/21/2021] [Indexed: 11/30/2022]
Abstract
This study in dogs explored the feasibility of using cartilage fragments removed and discarded during routine palliative surgery for osteochondritis dissecans (OCD) as a source of primary chondrocytes for scaffold-free cartilage tissue-engineering. Primary chondrocytes were obtained from three OCD donors and one age-matched healthy articular cartilage (HAC) donor. After monolayer expansion of primary cells, a three-dimensional spherical suspension culture was implemented. Following this stage, cells were seeded at a high density into custom-made agarose molds that allowed for size and shape-specific constructs to be generated via a method of cellular self-assembling in a scaffold-free environment. Fifty-eight neocartilage constructs were tissue-engineered using this methodology. Neocartilage constructs and native cartilage from shoulder joint were subjected to histological, mechanical, and biochemical testing. OCD and HAC chondrocytes-sourced constructs had uniformly flat morphology and histology consistent with cartilage tissue. Constructs sourced from OCD chondrocytes were 1.5-times (32%) stiffer in compression and 1.3 times (23%) stronger in tension than constructs sourced from HAC chondrocytes and only 8.7-times (81%) less stiff in tension than native tissue. Constructs from both cell sources consistently had lower collagen content than native tissue (22.9%/dry weight [DW] for OCD and 4.1%/DW for HAC vs. 51.1%/DW native tissue). To improve the collagen content and mechanical properties of neocartilage, biological and mechanical stimuli, and thyroid hormone (tri-iodothyronine) were applied to the chondrocytes during the self-assembling stage in two separate studies. A 2.6-fold (62%) increase in compressive stiffness was detected with supplementation of biological stimuli alone and 5-fold (81%) increase with combined biological and mechanical stimuli at 20% strain. Application of thyroid hormone improved collagen content (1.7-times, 33%), tensile strength (1.8-times, 43%), and stiffness (1.3-times, 21%) of constructs, relative to untreated controls. Collectively, these data suggest that OCD chondrocytes can serve as a reliable cell source for cartilage tissue-engineering and that canine chondrocytes respond favorably to biological and mechanical stimuli that have been shown effective in chondrocytes from other animal species, including humans.
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16
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Kresakova L, Danko J, Vdoviakova K, Medvecky L, Zert Z, Petrovova E, Varga M, Spakovska T, Pribula J, Gasparek M, Giretova M, Stulajterova R, Kolvek F, Andrejcakova Z, Simaiova V, Kadasi M, Vrabec V, Toth T, Hura V. In Vivo Study of Osteochondral Defect Regeneration Using Innovative Composite Calcium Phosphate Biocement in a Sheep Model. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4471. [PMID: 34442993 PMCID: PMC8398687 DOI: 10.3390/ma14164471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/31/2021] [Accepted: 08/04/2021] [Indexed: 11/17/2022]
Abstract
This study aimed to clarify the therapeutic effect and regenerative potential of the novel, amino acids-enriched acellular biocement (CAL) based on calcium phosphate on osteochondral defects in sheep. Eighteen sheep were divided into three groups, the treated group (osteochondral defects filled with a CAL biomaterial), the treated group with a biocement without amino acids (C cement), and the untreated group (spontaneous healing). Cartilages of all three groups were compared with natural cartilage (negative control). After six months, sheep were evaluated by gross appearance, histological staining, immunohistochemical staining, histological scores, X-ray, micro-CT, and MRI. Treatment of osteochondral defects by CAL resulted in efficient articular cartilage regeneration, with a predominant structural and histological characteristic of hyaline cartilage, contrary to fibrocartilage, fibrous tissue or disordered mixed tissue on untreated defect (p < 0.001, modified O'Driscoll score). MRI results of treated defects showed well-integrated and regenerated cartilage with similar signal intensity, regularity of the articular surface, and cartilage thickness with respect to adjacent native cartilage. We have demonstrated that the use of new biocement represents an effective solution for the successful treatment of osteochondral defects in a sheep animal model, can induce an endogenous regeneration of cartilage in situ, and provides several benefits for the design of future therapies supporting osteochondral defect healing.
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Affiliation(s)
- Lenka Kresakova
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (J.D.); (K.V.); (E.P.); (V.S.)
| | - Jan Danko
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (J.D.); (K.V.); (E.P.); (V.S.)
| | - Katarina Vdoviakova
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (J.D.); (K.V.); (E.P.); (V.S.)
| | - Lubomir Medvecky
- Division of Functional and Hybrid Systems, Institute of Materials Research of SAS, Watsonova 47, 040 01 Kosice, Slovakia; (L.M.); (M.G.); (R.S.)
| | - Zdenek Zert
- Clinic of Horses, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (Z.Z.); (F.K.); (V.H.)
| | - Eva Petrovova
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (J.D.); (K.V.); (E.P.); (V.S.)
| | - Maros Varga
- Hospital AGEL Kosice-Saca, Lucna 57, 040 15 Kosice-Saca, Slovakia; (M.V.); (T.S.); (J.P.)
| | - Tatiana Spakovska
- Hospital AGEL Kosice-Saca, Lucna 57, 040 15 Kosice-Saca, Slovakia; (M.V.); (T.S.); (J.P.)
| | - Jozef Pribula
- Hospital AGEL Kosice-Saca, Lucna 57, 040 15 Kosice-Saca, Slovakia; (M.V.); (T.S.); (J.P.)
| | - Miroslav Gasparek
- Department of Engineering Science, University of Oxford, Parks Road, Oxford OX1 3PJ, UK;
| | - Maria Giretova
- Division of Functional and Hybrid Systems, Institute of Materials Research of SAS, Watsonova 47, 040 01 Kosice, Slovakia; (L.M.); (M.G.); (R.S.)
| | - Radoslava Stulajterova
- Division of Functional and Hybrid Systems, Institute of Materials Research of SAS, Watsonova 47, 040 01 Kosice, Slovakia; (L.M.); (M.G.); (R.S.)
| | - Filip Kolvek
- Clinic of Horses, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (Z.Z.); (F.K.); (V.H.)
| | - Zuzana Andrejcakova
- Department of Biology and Physiology, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
| | - Veronika Simaiova
- Department of Morphological Disciplines, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (J.D.); (K.V.); (E.P.); (V.S.)
| | - Marian Kadasi
- Clinic of Ruminants, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
| | - Vladimir Vrabec
- Clinic of Birds, Exotic and Free Living Animals, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia;
| | - Teodor Toth
- Department of Biomedical Engineering and Measurement, Faculty of Mechanical Engineering, Technical University of Kosice, Letna 9, 042 00 Kosice, Slovakia;
| | - Vladimir Hura
- Clinic of Horses, University of Veterinary Medicine and Pharmacy in Kosice, Komenskeho 73, 041 81 Kosice, Slovakia; (Z.Z.); (F.K.); (V.H.)
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17
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Boyko A, Tsepkova P, Aleshin V, Artiukhov A, Mkrtchyan G, Ksenofontov A, Baratova L, Ryabov S, Graf A, Bunik V. Severe Spinal Cord Injury in Rats Induces Chronic Changes in the Spinal Cord and Cerebral Cortex Metabolism, Adjusted by Thiamine That Improves Locomotor Performance. Front Mol Neurosci 2021; 14:620593. [PMID: 33867932 PMCID: PMC8044794 DOI: 10.3389/fnmol.2021.620593] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Accepted: 03/05/2021] [Indexed: 01/23/2023] Open
Abstract
Our study aims at developing knowledge-based strategies minimizing chronic changes in the brain after severe spinal cord injury (SCI). The SCI-induced long-term metabolic alterations and their reactivity to treatments shortly after the injury are characterized in rats. Eight weeks after severe SCI, significant mitochondrial lesions outside the injured area are demonstrated in the spinal cord and cerebral cortex. Among the six tested enzymes essential for the TCA cycle and amino acid metabolism, mitochondrial 2-oxoglutarate dehydrogenase complex (OGDHC) is the most affected one. SCI downregulates this complex by 90% in the spinal cord and 30% in the cerebral cortex. This is associated with the tissue-specific changes in other enzymes of the OGDHC network. Single administrations of a pro-activator (thiamine, or vitamin B1, 1.2 mmol/kg) or a synthetic pro-inhibitor (triethyl glutaryl phosphonate, TEGP, 0.02 mmol/kg) of OGDHC within 15–20 h after SCI are tested as protective strategies. The biochemical and physiological assessments 8 weeks after SCI reveal that thiamine, but not TEGP, alleviates the SCI-induced perturbations in the rat brain metabolism, accompanied by the decreased expression of (acetyl)p53, increased expression of sirtuin 5 and an 18% improvement in the locomotor recovery. Treatment of the non-operated rats with the OGDHC pro-inhibitor TEGP increases the p53 acetylation in the brain, approaching the brain metabolic profiles to those after SCI. Our data testify to an important contribution of the OGDHC regulation to the chronic consequences of SCI and their control by p53 and sirtuin 5.
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Affiliation(s)
- Alexandra Boyko
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia
| | - Polina Tsepkova
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia
| | - Vasily Aleshin
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia.,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Artem Artiukhov
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia.,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Garik Mkrtchyan
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia
| | - Alexander Ksenofontov
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Lyudmila Baratova
- Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Sergey Ryabov
- Russian Cardiology Research-and-Production Complex, Ministry of Health of the Russian Federation, Moscow, Russia
| | - Anastasia Graf
- Faculty of Biology, Lomonosov Moscow State University, Moscow, Russia.,Faculty of Nano-, Bio-, Informational and Cognitive Technologies, Moscow Institute of Physics and Technology, Moscow, Russia
| | - Victoria Bunik
- Faculty of Bioengineering and Bioinformatics, Lomonosov Moscow State University, Moscow, Russia.,Belozersky Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Moscow, Russia.,Department of Biological Chemistry, Sechenov University, Moscow, Russia
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18
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Guan M, Pan D, Zhang M, Leng X, Yao B. Deer antler extract potentially facilitates xiphoid cartilage growth and regeneration and prevents inflammatory susceptibility by regulating multiple functional genes. J Orthop Surg Res 2021; 16:208. [PMID: 33752715 PMCID: PMC7983396 DOI: 10.1186/s13018-021-02350-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/10/2021] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Deer antler is a zoological exception due to its fantastic characteristics, including amazing growth rate and repeatable regeneration. Deer antler has been used as a key ingredient in traditional Chinese medicine relating to kidney and bone health for centuries. The aim of this study was to dissect the molecular regulation of deer antler extract (DAE) on xiphoid cartilage (XC). METHODS The DAE used in this experiment was same as the one that was prepared as previously described. The specific pathogen-free (SPF) grade Sprague-Dawley (SD) rats were randomly divided into blank group (n =10) and DAE group (n =10) after 1-week adaptive feeding. The DAE used in this experiment was same as the one that was prepared as previously described. The rats in DAE group were fed with DAE for 3 weeks at a dose of 0.2 g/kg per day according to the body surface area normalization method, and the rats in blank group were fed with drinking water. Total RNA was extracted from XC located in the most distal edge of the sternum. Illumina RNA sequencing (RNA-seq) in combination with quantitative real-time polymerase chain reaction (qRT-PCR) validation assay was carried out to dissect the molecular regulation of DAE on XC. RESULTS We demonstrated that DAE significantly increased the expression levels of DEGs involved in cartilage growth and regeneration, but decreased the expression levels of DEGs involved in inflammation, and mildly increased the expression levels of DEGs involved in chondrogenesis and chondrocyte proliferation. CONCLUSIONS Our findings suggest that DAE might serve as a complementary therapeutic regent for cartilage growth and regeneration to treat cartilage degenerative disease, such as osteoarthritis.
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Affiliation(s)
- Mengqi Guan
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Daian Pan
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Mei Zhang
- Innovation Practice Center, Changchun University of Chinese Medicine, Changchun, Jilin, 130117 China
| | - Xiangyang Leng
- College of Traditional Chinese Medicine, Changchun University of Chinese Medicine, Changchun, 130117 China
| | - Baojin Yao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun, 130117 China
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Characterization of Properties, In Vitro and In Vivo Evaluation of Calcium Phosphate/Amino Acid Cements for Treatment of Osteochondral Defects. MATERIALS 2021; 14:ma14020436. [PMID: 33477289 PMCID: PMC7830446 DOI: 10.3390/ma14020436] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/08/2021] [Accepted: 01/12/2021] [Indexed: 12/13/2022]
Abstract
Novel calcium phosphate cements containing a mixture of four amino acids, glycine, proline, hydroxyproline and either lysine or arginine (CAL, CAK) were characterized and used for treatment of artificial osteochondral defects in knee. It was hypothesized that an enhanced concentration of extracellular collagen amino acids (in complex mixture), in connection with bone cement in defect sites, would support the healing of osteochondral defects with successful formation of hyaline cartilage and subchondral bone. Calcium phosphate cement mixtures were prepared by in situ reaction in a planetary ball mill at aseptic conditions and characterized. It was verified that about 30–60% of amino acids remained adsorbed on hydroxyapatite particles in cements and the addition of amino acids caused around 60% reduction in compressive strength and refinement of hydroxyapatite particles in their microstructure. The significant over-expression of osteogenic genes after the culture of osteoblasts was demonstrated in the cement extracts containing lysine and compared with other cements. The cement pastes were inserted into artificial osteochondral defects in the medial femoral condyle of pigs and, after 3 months post-surgery, tissues were analyzed macroscopically, histologically, immunohistochemically using MRI and X-ray methods. Analysis clearly showed the excellent healing process of artificial osteochondral defects in pigs after treatment with CAL and CAK cements without any inflammation, as well as formation of subchondral bone and hyaline cartilage morphologically and structurally identical to the original tissues. Good integration of the hyaline neocartilage with the surrounding tissue, as well as perfect interconnection between the neocartilage and new subchondral bone tissue, was demonstrated. Tissues were stable after 12 months’ healing.
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