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Cai J, Deng Y, Min Z, Li C, Zhao Z, Jing D. Deciphering the dynamics: Exploring the impact of mechanical forces on histone acetylation. FASEB J 2024; 38:e23849. [PMID: 39096133 DOI: 10.1096/fj.202400907rr] [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: 04/22/2024] [Revised: 07/01/2024] [Accepted: 07/21/2024] [Indexed: 08/04/2024]
Abstract
Living cells navigate a complex landscape of mechanical cues that influence their behavior and fate, originating from both internal and external sources. At the molecular level, the translation of these physical stimuli into cellular responses relies on the intricate coordination of mechanosensors and transducers, ultimately impacting chromatin compaction and gene expression. Notably, epigenetic modifications on histone tails govern the accessibility of gene-regulatory sites, thereby regulating gene expression. Among these modifications, histone acetylation emerges as particularly responsive to the mechanical microenvironment, exerting significant control over cellular activities. However, the precise role of histone acetylation in mechanosensing and transduction remains elusive due to the complexity of the acetylation network. To address this gap, our aim is to systematically explore the key regulators of histone acetylation and their multifaceted roles in response to biomechanical stimuli. In this review, we initially introduce the ubiquitous force experienced by cells and then explore the dynamic alterations in histone acetylation and its associated co-factors, including HDACs, HATs, and acetyl-CoA, in response to these biomechanical cues. Furthermore, we delve into the intricate interactions between histone acetylation and mechanosensors/mechanotransducers, offering a comprehensive analysis. Ultimately, this review aims to provide a holistic understanding of the nuanced interplay between histone acetylation and mechanical forces within an academic framework.
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Affiliation(s)
- Jingyi Cai
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yudi Deng
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ziyang Min
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chaoyuan Li
- Department of Implantology, School and Hospital of Stomatology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Tongji University, Shanghai, China
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dian Jing
- Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- College of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- National Center for Stomatology, Shanghai, China
- National Clinical Research Center for Oral Diseases, Shanghai, China
- Shanghai Key Laboratory of Stomatology, Shanghai, China
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Mechanical Stretch Promotes Macrophage Polarization and Inflammation via the RhoA-ROCK/NF-κB Pathway. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6871269. [PMID: 35915804 PMCID: PMC9338847 DOI: 10.1155/2022/6871269] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 06/17/2022] [Accepted: 06/28/2022] [Indexed: 11/24/2022]
Abstract
Macrophages play an essential role in the pathogenesis of most inflammatory diseases. Recent studies have shown that mechanical load can influence macrophage function, leading to excessive and uncontrolled inflammation and even systemic damage, including cardiovascular disease and knee osteoarthritis. However, the molecular mechanism remains unclear. In this study, murine RAW264.7 cells were treated with mechanical stretch (MS) using the Flexcell-5000T Tension System. The expression of inflammatory factors and cytokine release were measured by RT-qPCR, ELISA, and Western blotting. The protein expression of NF-κB p65, Iκb-α, p-Iκb-α, RhoA, ROCK1, and ROCK2 was also detected by Western blotting. Then, Flow cytometry was used to detect the proportion of macrophage subsets. Meanwhile, Y-27632 dihydrochloride, a ROCK inhibitor, was added to knockdown ROCK signal transduction in cells. Our results demonstrated that MS upregulated mRNA expression and increased the secretion levels of proinflammatory factors iNOS, IL-1β, TNF-α, and IL-6. Additionally, MS significantly increased the proportion of CD11b+CD86+ and CD11b+CD206+ subsets in RAW264.7 macrophages. Furthermore, the protein expression of RhoA, ROCK1, ROCK2, NF-κB p65, and IκB-α increased in MS-treated RAW264.7 cells, as well as the IL-6 and iNOS. In contrast, ROCK inhibitor significantly blocked the activation of RhoA-ROCK and NF-κB pathway, decreased the protein expression of IL-6 and iNOS, reduced the proportion of CD11b+CD86+ cells subpopulation, and increased the proportion of CD11b+CD206+ cell subpopulation after MS. These data indicate that mechanical stretch can regulate the RAW264.7 macrophage polarization and enhance inflammatory responses in vitro, which may contribute to activation the RhoA-ROCK/NF-κB pathway.
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Dong Z, Ma Z, Yang M, Cong L, Zhao R, Cheng L, Sun J, Wang Y, Yang R, Wei X, Li P. The Level of Histone Deacetylase 4 is Associated with Aging Cartilage Degeneration and Chondrocyte Hypertrophy. J Inflamm Res 2022; 15:3547-3560. [PMID: 35734099 PMCID: PMC9208673 DOI: 10.2147/jir.s365545] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Accepted: 05/28/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose To determine the role of histone deacetylase 4 (HDAC4)-controlled chondrocyte hypertrophy in the onset and development of age-related osteoarthritis (OA). Methods Morphological analysis of human knee cartilages was performed to observe structural changes during cartilage degeneration. HDAC4 expression was deleted in adult aggrecan (Acan)-CreERT2; HDAC4fl/fl transgenic mice. The onset and development of age-related OA were investigated in transgenic and control mice using hematoxylin and eosin (H&E) and Safranin O staining. Furthermore, the progression of ACLT-induced OA following adenovirus-mediated HDAC4 overexpression was explored in rats. The expression levels of genes related to hypertrophy, cartilage matrix and its digestion, and chondrocyte proliferation were investigated using qPCR. Immunohistochemistry (IHC) was used to explore the mechanisms underlying HDAC4-controlled age-related changes in OA progression. Results In human cartilage, we performed morphological analysis and IHC, the results showed that hypertrophy-related structural changes are related to HDAC4 expression. Age-related OA was detected early (OARSI scores 2.7 at 8-month-old) following HDAC4 deletion in 2-month-old mice. Furthermore, qPCR and IHC results showed changes in hypertrophy-related genes Col10a1, Runx2 and Sox9 in chondrocytes, particularly in the expression of Runt-related transcription factor 2 (Runx2, 13.29±0.99 fold). The expression of the main cartilage matrix-related genes Col2a1 and Acan decreased, that of cartilage matrix digestion-related gene MMP-13 increased, while that of chondrocyte proliferation-related genes PTHrP, Ihh and Gli1 changed. In contrast, rat cartilage’s qPCR and IHC results showed opposite outcomes after HDAC4 overexpression. Conclusion Based on the results above, we concluded that HDAC4 expression regulates the onset and development of age-related OA by controlling chondrocyte hypertrophy. These results may help in the development of early diagnosis and treatment of age-related OA.
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Affiliation(s)
- Zhengquan Dong
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Zhou Ma
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Meiju Yang
- Department of Biochemistry and Molecular Biology, the Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Linlin Cong
- Department of Biochemistry and Molecular Biology, the Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Ruipeng Zhao
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Liyun Cheng
- Department of Rheumatology, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Jian Sun
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Yunfei Wang
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Ruijia Yang
- Department of Biochemistry and Molecular Biology, the Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Xiaochun Wei
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Pengcui Li
- Department of Orthopaedic, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
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Huang L, Li P, Guo L, Li L, Yuan J, Zhao R, Li H, Wei X. Zinc finger protein 521 attenuates osteoarthritis via the histone deacetylases 4 in the nucleus. Bioengineered 2022; 13:14489-14502. [PMID: 36694467 PMCID: PMC9995124 DOI: 10.1080/21655979.2022.2090203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
To determine whether zinc finger protein 521 (Zfp521) has a chondroprotective effect by maintaining extracellular matrix (ECM) homeostasis to attenuate osteoarthritis (OA). In chondrocytes, Zfp521 was overexpressed or silenced to detect its effects on proliferation, apoptosis, and ECM homeostasis. Adenovirus encoding Zfp521 was injected into the knee joints of anterior cruciate ligament transection rats to test its efficacy against OA. Combined with proteomic analysis, the molecular mechanism of Zfp521 in cartilage degeneration was further explored. An intra-articular injection of adenovirus carrying a Zfp521 sequence showed a chondroprotective effect against OA. The molecular mechanism around Zfp521 was classified at the molecular, cellular, histological, and functional levels. It was reported that Zfp521 could effectively promote cartilage proliferation, inhibit apoptosis, and maintain the balance of anabolism and catabolism of ECM. Moreover, it was confirmed that Zfp521 exerted its effect better by upregulating histone deacetylases 4 (HDAC4) in the nucleus and was significantly weakened in the absence of HDAC4 in the nucleus. Overall, Zfp521 better exerts its efficacy against OA by increasing the HDAC4 content in the nucleus, making it a promising strategy for OA treatment.
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Affiliation(s)
- Lingan Huang
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Pengcui Li
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Li Guo
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Lu Li
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Jie Yuan
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Ruipeng Zhao
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Haoqian Li
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
| | - Xiaochun Wei
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi Province, China
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Mechanical Cues Regulate Histone Modifications and Cell Behavior. Stem Cells Int 2022; 2022:9179111. [PMID: 35599845 PMCID: PMC9117061 DOI: 10.1155/2022/9179111] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Accepted: 03/19/2022] [Indexed: 11/17/2022] Open
Abstract
Change of biophysical factors in tissue microenvironment is an important step in a chronic disease development process. A mechanical and biochemical factor from cell living microniche can regulate cell epigenetic decoration and, therefore, further induce change of gene expression. In this review, we will emphasize the mechanism that biophysical microenvironment manipulates cell behavior including gene expression and protein decoration, through modifying histone amino acid residue modification. The influence given by different mechanical forces, including mechanical stretch, substrate surface stiffness, and shear stress, on cell fate and behavior during chronic disease development including tumorigenesis will also be teased out. Overall, the recent work summarized in this review culminates on the hypothesis that a mechanical factor stimulates the modification on histone which could facilitate disease detection and potential therapeutic target.
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Gu X, Li F, Gao Y, Che X, Li P. HDAC4 mutant represses chondrocyte hypertrophy by locating in the nucleus and attenuates disease progression of posttraumatic osteoarthritis. BMC Musculoskelet Disord 2022; 23:8. [PMID: 34980076 PMCID: PMC8725337 DOI: 10.1186/s12891-021-04947-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 12/08/2021] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND The aim of this study was to evaluate whether histone deacetylase 4 S246/467/632A mutant (m-HDAC4) has enhanced function at histone deacetylase 4 (HDAC4) to attenuate cartilage degeneration in a rat model of osteoarthritis (OA). METHODS Chondrocytes were infected with Ad-m-HDAC4-GFP or Ad-HDAC4-GFP for 24 h, incubated with interleukin-1β (IL-1β 10 ng/mL) for 24 h, and then measured by RT-qPCR. Male Sprague-Dawley rats (n = 48) were randomly divided into four groups and transduced with different vectors: ACLT/Ad-GFP, ACLT/Ad-HDAC4-GFP, ACLT/Ad-m-HDAC4-GFP, and sham/Ad-GFP. All rats received intra-articular injections 48 h after the operation and every 3 weeks thereafter. Cartilage damage was assessed using radiography and Safranin O staining and quantified using the OARSI score. The hypertrophic and anabolic molecules were detected by immunohistochemistry and RT-qPCR. RESULTS M-HDAC4 decreased the expression levels of Runx-2, Mmp-13, and Col 10a1, but increased the levels of Col 2a1 and ACAN more effectively than HDAC4 in the IL-1β-induced chondrocyte OA model; upregulation of HDAC4 and m-HDAC4 in the rat OA model suppressed Runx-2 and MMP-13 production, and enhanced Col 2a1 and ACAN synthesis. Stronger Safranin O staining was detected in rats treated with m-HDAC4 than in those treated with HDAC4. The resulting OARSI scores were lower in the Ad-m-HDAC4 group (5.80 ± 0.45) than in the Ad-HDAC4 group (9.67 ± 1.83, P = 0.045). The OARSI scores were highest in rat knees that underwent ACLT treated with Ad-GFP control adenovirus vector (14.93 ± 2.14, P = 0.019 compared with Ad-HDAC4 group; P = 0.003 compared with Ad-m-HDAC4 group). Lower Runx-2 and MMP-13 production, and stronger Col 2a1 and ACAN synthesis were detected in rats treated with m-HDAC4 than in those treated with HDAC4. CONCLUSIONS M-HDAC4 repressed chondrocyte hypertrophy and induced chondrocyte anabolism in the nucleus. M-HDAC4 was more effective in attenuating articular cartilage damage than HDAC4.
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Affiliation(s)
- Xiaodong Gu
- Department of Orthopaedics, Shanxi Bethune Hospital, Longcheng Road 99, Taiyuan, 030032, China
| | - Fei Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Wuyi Road 382, Taiyuan, 030001, China
| | - Yangyang Gao
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Wuyi Road 382, Taiyuan, 030001, China
| | - Xianda Che
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Wuyi Road 382, Taiyuan, 030001, China
| | - Pengcui Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Wuyi Road 382, Taiyuan, 030001, China.
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Chen Z, Zhang Z, Guo L, Wei X, Zhang Y, Wang X, Wei L. The role of histone deacetylase 4 during chondrocyte hypertrophy and endochondral bone development. Bone Joint Res 2020; 9:82-89. [PMID: 32435460 PMCID: PMC7229302 DOI: 10.1302/2046-3758.92.bjr-2019-0172.r1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Chondrocyte hypertrophy represents a crucial turning point during endochondral bone development. This process is tightly regulated by various factors, constituting a regulatory network that maintains normal bone development. Histone deacetylase 4 (HDAC4) is the most well-characterized member of the HDAC class IIa family and participates in different signalling networks during development in various tissues by promoting chromatin condensation and transcriptional repression. Studies have reported that HDAC4-null mice display premature ossification of developing bones due to ectopic and early-onset chondrocyte hypertrophy. Overexpression of HDAC4 in proliferating chondrocytes inhibits hypertrophy and ossification of developing bones, which suggests that HDAC4, as a negative regulator, is involved in the network regulating chondrocyte hypertrophy. Overall, HDAC4 plays a key role during bone development and disease. Thus, understanding the role of HDAC4 during chondrocyte hypertrophy and endochondral bone formation and its features regarding the structure, function, and regulation of this process will not only provide new insight into the mechanisms by which HDAC4 is involved in chondrocyte hypertrophy and endochondral bone development, but will also create a platform for developing a therapeutic strategy for related diseases. Cite this article:Bone Joint Res. 2020;9(2):82–89.
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Affiliation(s)
- Zhi Chen
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Zhiwei Zhang
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Li Guo
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiaochun Wei
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Yang Zhang
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Xiaojian Wang
- Department of Orthopedics, Second Hospital of Shanxi Medical University, Taiyuan, China
| | - Lei Wei
- Department of Orthopedics, Warren Alpert Medical School of Brown University, Providence, Rhode Island, USA
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Xiao L, Ding B, Xu S, Gao J, Yang B, Wang J, Xu H. circRNA_0058097 promotes tension-induced degeneration of endplate chondrocytes by regulating HDAC4 expression through sponge adsorption of miR-365a-5p. J Cell Biochem 2019; 121:418-429. [PMID: 31222836 DOI: 10.1002/jcb.29202] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Accepted: 05/29/2019] [Indexed: 12/13/2022]
Abstract
Excessive mechanical tension can lead to the degeneration of endplate chondrocytes. The presence of tension-sensitive circRNA_0058097 molecules has been detected in human endplate chondrocytes, where it was found to be a potential competing endogenous RNA. Indeed, inhibiting the expression of circRNA_0058097 effectively enhanced the stress resistance of endplate chondrocytes, suggesting that it may be an important trigger point for the degeneration of endplate cartilage. Through a series of experiments, we reveal that circRNA_0058097 can upregulate the expression of downstream target gene histone deacetylase 4 by sponge adsorption of miR-365a-5p, which promoted morphological changes of endplate chondrocytes, and increased extracellular matrix degradation and degeneration of endplate cartilage. Therefore, circRNA_0058097 may provide a new way to prevent and treat endplate cartilage degeneration.
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Affiliation(s)
- Liang Xiao
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Baiyang Ding
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Shujuan Xu
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Jianming Gao
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Bijing Yang
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Jing Wang
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
| | - Hongguang Xu
- Department of Spine Surgery, Key Laboratory of Non-coding RNA Transformation Research of Anhui Higher Education Institution, Spine Research Center of Wannan Medical College, Yijishan Hospital of Wannan Medical College, Wuhu, Anhui, China
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Lee JK, Huwe LW, Paschos N, Aryaei A, Gegg CA, Hu JC, Athanasiou KA. Tension stimulation drives tissue formation in scaffold-free systems. NATURE MATERIALS 2017; 16:864-873. [PMID: 28604717 PMCID: PMC5532069 DOI: 10.1038/nmat4917] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Accepted: 05/04/2017] [Indexed: 05/04/2023]
Abstract
Scaffold-free systems have emerged as viable approaches for engineering load-bearing tissues. However, the tensile properties of engineered tissues have remained far below the values for native tissue. Here, by using self-assembled articular cartilage as a model to examine the effects of intermittent and continuous tension stimulation on tissue formation, we show that the application of tension alone, or in combination with matrix remodelling and synthesis agents, leads to neocartilage with tensile properties approaching those of native tissue. Implantation of tension-stimulated tissues results in neotissues that are morphologically reminiscent of native cartilage. We also show that tension stimulation can be translated to a human cell source to generate anisotropic human neocartilage with enhanced tensile properties. Tension stimulation, which results in nearly sixfold improvements in tensile properties over unstimulated controls, may allow the engineering of mechanically robust biological replacements of native tissue.
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Affiliation(s)
- Jennifer K. Lee
- Department of Biomedical Engineering, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Le W. Huwe
- Department of Biomedical Engineering, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Nikolaos Paschos
- Department of Biomedical Engineering, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Ashkan Aryaei
- Department of Biomedical Engineering, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Courtney A. Gegg
- Department of Bioengineering, Stanford University, 443 Via Ortega, Stanford, CA, 94305
| | - Jerry C. Hu
- Department of Biomedical Engineering, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
| | - Kyriacos A. Athanasiou
- Department of Biomedical Engineering, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
- Department of Orthopaedic Surgery, University of California, Davis, One Shields Avenue, Davis, CA, 95616, USA
- Correspondence and reprint requests should be addressed to: KA Athanasiou, Tel.: (530) 754-6645, Fax: (530) 754-5739, , Department of Biomedical Engineering, University of California, Davis, One Shields Ave, Davis, CA 95616, USA
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