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Sun H, Feng Y, Tu S, Zhou J, Wang Y, Wei J, Zhang S, Hou Y, Shao Y, Ai H, Chen Z. Dopamine promotes osteogenic differentiation of PDLSCs by activating DRD1 and DRD2 during orthodontic tooth movement via ERK1/2 signaling pathway. Regen Ther 2024; 27:268-278. [PMID: 38617443 PMCID: PMC11015103 DOI: 10.1016/j.reth.2024.03.025] [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: 01/31/2024] [Revised: 03/20/2024] [Accepted: 03/24/2024] [Indexed: 04/16/2024] Open
Abstract
Introduction Orthodontic tooth movement (OTM) involves complex interactions between mechanical forces and periodontal tissue adaptation, mainly mediated by periodontal ligament cells, including periodontal ligament stem cells (PDLSCs), osteoblasts, and osteoclasts. Dopamine (DA), a neurotransmitter known for its critical role in bone metabolism, is investigated in this study for its potential to enhance osteogenic differentiation in PDLSCs, which are pivotal in OTM. This study examined the potential of DA to facilitate OTM by binding to DA receptors (D1R and D2R) and activating the ERK1/2 signaling pathway. We propose that DA's interaction with these receptors on PDLSCs could enhance osteogenic differentiation, thereby accelerating bone remodeling and reducing the duration of orthodontic treatments, which offering a novel approach to improve clinical outcomes in orthodontic care. Methods This study utilized a rat OTM model, micro-CT, histological analyses, and in vitro assays to investigate dopamine's effect on osteogenesis. PDLSCs were cultured and treated with DA, and cytotoxicity, osteogenic differentiation, gene and protein expression assessed. Results Dopamine administration significantly increased trabecular bone density and osteogenic marker expression in an OTM rat model. In vitro, DA at 10 nM optimally promoted human PDLSCs osteogenesis without affecting proliferation. Blocking DA receptors or inhibiting the ERK1/2 pathway attenuated these effects, underscoring the importance of dopaminergic signaling in tension-induced osteogenesis during OTM. Conclusion Taken together, our study reveals that local dopamine administration at a concentration of 10 nM not only enhances tension-induced osteogenesis in vivo but also significantly promotes osteogenic differentiation of PDLSCs in vitro through D1 and D2 receptor-mediated ERK1/2 signaling pathway activation.
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Affiliation(s)
| | | | | | - Jianwu Zhou
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuxuan Wang
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Jiaming Wei
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Sai Zhang
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Yuluan Hou
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Yiting Shao
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Hong Ai
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
| | - Zheng Chen
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510630, China
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Gargalionis AN, Adamopoulos C, Vottis CT, Papavassiliou AG, Basdra EK. Runx2 and Polycystins in Bone Mechanotransduction: Challenges for Therapeutic Opportunities. Int J Mol Sci 2024; 25:5291. [PMID: 38791330 PMCID: PMC11121608 DOI: 10.3390/ijms25105291] [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: 04/02/2024] [Revised: 05/04/2024] [Accepted: 05/12/2024] [Indexed: 05/26/2024] Open
Abstract
Bone mechanotransduction is a critical process during skeletal development in embryogenesis and organogenesis. At the same time, the type and level of mechanical loading regulates bone remodeling throughout the adult life. The aberrant mechanosensing of bone cells has been implicated in the development and progression of bone loss disorders, but also in the bone-specific aspect of other clinical entities, such as the tumorigenesis of solid organs. Novel treatment options have come into sight that exploit the mechanosensitivity of osteoblasts, osteocytes, and chondrocytes to achieve efficient bone regeneration. In this regard, runt-related transcription factor 2 (Runx2) has emerged as a chief skeletal-specific molecule of differentiation, which is prominent to induction by mechanical stimuli. Polycystins represent a family of mechanosensitive proteins that interact with Runx2 in mechano-induced signaling cascades and foster the regulation of alternative effectors of mechanotransuction. In the present narrative review, we employed a PubMed search to extract the literature concerning Runx2, polycystins, and their association from 2000 to March 2024. The keywords stated below were used for the article search. We discuss recent advances regarding the implication of Runx2 and polycystins in bone remodeling and regeneration and elaborate on the targeting strategies that may potentially be applied for the treatment of patients with bone loss diseases.
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Affiliation(s)
- Antonios N. Gargalionis
- Laboratory of Clinical Biochemistry, Medical School, National and Kapodistrian University of Athens, ‘Attikon’ University General Hospital, 12462 Athens, Greece;
| | - Christos Adamopoulos
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (C.A.); (A.G.P.)
- Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Christos T. Vottis
- First Department of Orthopedics, Medical School, National and Kapodistrian University of Athens, ‘Attikon’ University General Hospital, 12462 Athens, Greece;
| | - Athanasios G. Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (C.A.); (A.G.P.)
| | - Efthimia K. Basdra
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece; (C.A.); (A.G.P.)
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Hussain MS, Shaikh NK, Agrawal M, Tufail M, Bisht AS, Khurana N, Kumar R. Osteomyelitis and non-coding RNAS: A new dimension in disease understanding. Pathol Res Pract 2024; 255:155186. [PMID: 38350169 DOI: 10.1016/j.prp.2024.155186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 01/27/2024] [Accepted: 01/31/2024] [Indexed: 02/15/2024]
Abstract
Osteomyelitis, a debilitating bone infection, presents considerable clinical challenges due to its intricate etiology and limited treatment options. Despite strides in surgical and chemotherapeutic interventions, the treatment landscape for osteomyelitis remains unsatisfactory. Recent attention has focused on the role of non-coding RNAs (ncRNAs) in the pathogenesis and progression of osteomyelitis. This review consolidates current knowledge on the involvement of distinct classes of ncRNAs, including microRNAs, long ncRNAs, and circular RNAs, in the context of osteomyelitis. Emerging evidence from various studies underscores the potential of ncRNAs in orchestrating gene expression and influencing the differentiation of osteoblasts and osteoclasts, pivotal processes in bone formation. The review initiates by elucidating the regulatory functions of ncRNAs in fundamental cellular processes such as inflammation, immune response, and bone remodeling, pivotal in osteomyelitis pathology. It delves into the intricate network of interactions between ncRNAs and their target genes, illuminating how dysregulation contributes to the establishment and persistence of osteomyelitic infections. Understanding their regulatory roles may pave the way for targeted diagnostic tools and innovative therapeutic interventions, promising a paradigm shift in the clinical approach to this challenging condition. Additionally, we delve into the promising therapeutic applications of these molecules, envisioning novel diagnostic and treatment approaches to enhance the management of this challenging bone infection.
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Affiliation(s)
- Md Sadique Hussain
- Department of Pharmacology, School of Pharmaceutical Sciences, Jaipur National University, Jaipur, Rajasthan 302017, India
| | - Nusrat K Shaikh
- Department of Quality Assurance, Smt. N. M. Padalia Pharmacy College, Ahmedabad, 382210 Gujarat, India
| | - Mohit Agrawal
- Department of Pharmacology, School of Medical & Allied Sciences, K.R. Mangalam University, Gurugram 122103, India
| | - Muhammad Tufail
- Department of Oral and Maxillofacial Surgery, Center of Stomatology, Xiangya Hospital, Central South University, Changsha, China.
| | - Ajay Singh Bisht
- School of Pharmaceutical Sciences, Shri Guru Ram Rai University, Patel Nagar, Dehradun, Uttarakhand 248001, India
| | - Navneet Khurana
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
| | - Rajesh Kumar
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara, Punjab, India
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Yun C, Kim SH, Kim KM, Yang MH, Byun MR, Kim JH, Kwon D, Pham HTM, Kim HS, Kim JH, Jung YS. Advantages of Using 3D Spheroid Culture Systems in Toxicological and Pharmacological Assessment for Osteogenesis Research. Int J Mol Sci 2024; 25:2512. [PMID: 38473760 DOI: 10.3390/ijms25052512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 02/19/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Bone differentiation is crucial for skeletal development and maintenance. Its dysfunction can cause various pathological conditions such as rickets, osteoporosis, osteogenesis imperfecta, or Paget's disease. Although traditional two-dimensional cell culture systems have contributed significantly to our understanding of bone biology, they fail to replicate the intricate biotic environment of bone tissue. Three-dimensional (3D) spheroid cell cultures have gained widespread popularity for addressing bone defects. This review highlights the advantages of employing 3D culture systems to investigate bone differentiation. It highlights their capacity to mimic the complex in vivo environment and crucial cellular interactions pivotal to bone homeostasis. The exploration of 3D culture models in bone research offers enhanced physiological relevance, improved predictive capabilities, and reduced reliance on animal models, which have contributed to the advancement of safer and more effective strategies for drug development. Studies have highlighted the transformative potential of 3D culture systems for expanding our understanding of bone biology and developing targeted therapeutic interventions for bone-related disorders. This review explores how 3D culture systems have demonstrated promise in unraveling the intricate mechanisms governing bone homeostasis and responses to pharmacological agents.
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Affiliation(s)
- Chawon Yun
- Department of Pharmacy, Research Institute for Drug Development, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Sou Hyun Kim
- Department of Pharmacy, Research Institute for Drug Development, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Kyung Mok Kim
- Department of Pharmacy, Research Institute for Drug Development, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Min Hye Yang
- Department of Pharmacy, Research Institute for Drug Development, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
| | - Mi Ran Byun
- College of Pharmacy, Daegu Catholic University, Gyeongsan 38430, Republic of Korea
| | - Joung-Hee Kim
- Department of Medical Beauty Care, Dongguk University Wise, Gyeongju 38066, Republic of Korea
| | - Doyoung Kwon
- Jeju Research Institute of Pharmaceutical Sciences, College of Pharmacy, Jeju National University, Jeju 63243, Republic of Korea
| | - Huyen T M Pham
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Hyo-Sop Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Jae-Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon 16499, Republic of Korea
| | - Young-Suk Jung
- Department of Pharmacy, Research Institute for Drug Development, College of Pharmacy, Pusan National University, Busan 46241, Republic of Korea
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Jiao Y, Mi S, Li X, Liu Y, Han N, Xu J, Liu Y, Li S, Guo L. MicroRNA-155 targets SOCS1 to inhibit osteoclast differentiation during orthodontic tooth movement. BMC Oral Health 2023; 23:955. [PMID: 38041017 PMCID: PMC10693016 DOI: 10.1186/s12903-023-03443-8] [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: 05/19/2023] [Accepted: 09/21/2023] [Indexed: 12/03/2023] Open
Abstract
BACKGROUND MicroRNA-155 (miR-155) is a multifunctional miRNA whose expression is known to be involved in a range of physiological and pathological processes. Its association with several oral diseases has been established. However, the specific role of miR-155 in orthodontic tooth movement remains unclear. In this study, we investigated the impact of miR-155 on osteoclast differentiation and orthodontic tooth movement models, aiming to explore the underlying mechanisms. METHODS In this experiment, we utilized various agents including miR-155 mimic, miR-155 inhibitor, as well as non-specific sequences (NC mimic & NC inhibitor) to treat murine BMMNCs. Subsequently, osteoclast induction (OC) was carried out to examine the changes in the differentiation ability of monocytes under different conditions. To assess these changes, we employed RT-PCR, Western blotting, and TRAP staining techniques. For the orthodontic tooth movement model in mice, the subjects were divided into two groups: the NaCl group (injected with saline solution) and the miR-155 inhibitor group (injected with AntagomiR-155). We observed the impact of orthodontic tooth movement using stereoscopic microscopy, micro-CT, and HE staining. Furthermore, we performed RT-PCR and Western blotting analyses on the tissues surrounding the moving teeth. Additionally, we employed TargetScan to predict potential target genes of miR-155. RESULTS During osteoclast induction of BMMNCs, the expression of miR-155 exhibited an inverse correlation with osteoclast-related markers. Overexpression of miR-155 led to a decrease in osteoclast-related indexes, whereas underexpression of miR-155 increased those indexes. In the mouse orthodontic tooth movement model, the rate of tooth movement was enhanced following injection of the miR-155 inhibitor, leading to heightened osteoclast activity. TargetScan analysis identified SOCS1 as a target gene of miR-155. CONCLUSIONS Our results suggest that miR-155 functions as an inhibitor of osteoclast differentiation, and it appears to regulate osteoclasts during orthodontic tooth movement. The regulatory mechanism of miR-155 in this process involves the targeting of SOCS1.
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Affiliation(s)
- Yao Jiao
- Department of Periodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China
| | - Sicong Mi
- Department of Stomatology, Air Force Medical Center, PLA, The Fourth Military Medical University, Beijing, 100142, P. R. China
| | - Xiaoyan Li
- Department of Periodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China
- Laboratory of Tissue Regeneration and Immunology, Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, 100050, P. R. China
| | - Yitong Liu
- Department of Periodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China
- Laboratory of Tissue Regeneration and Immunology, Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, 100050, P. R. China
| | - Nannan Han
- Department of Periodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China
- Laboratory of Tissue Regeneration and Immunology, Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, 100050, P. R. China
| | - Junji Xu
- Department of Periodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China
- Laboratory of Tissue Regeneration and Immunology, Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, 100050, P. R. China
| | - Yi Liu
- Department of Periodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China
- Laboratory of Tissue Regeneration and Immunology, Department of Periodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, School of Stomatology, Capital Medical University, Beijing, 100050, P. R. China
| | - Song Li
- Department of Orthodontics, School of Stomatology, Capital Medical University, Tian Tan Xi Li No.4, Beijing, 100050, P. R. China.
| | - Lijia Guo
- Department of Orthodontics (WangFuJing Campus), School of Stomatology, Capital Medical University, Scylla alley No.11, Beijing, 100006, P. R. China.
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Thompson W, Papoutsakis ET. The role of biomechanical stress in extracellular vesicle formation, composition and activity. Biotechnol Adv 2023; 66:108158. [PMID: 37105240 DOI: 10.1016/j.biotechadv.2023.108158] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/23/2023] [Accepted: 04/24/2023] [Indexed: 04/29/2023]
Abstract
Extracellular vesicles (EVs) are cornerstones of intercellular communication with exciting fundamental, clinical, and more broadly biotechnological applications. However, variability in EV composition, which results from the culture conditions used to generate the EVs, poses significant fundamental and applied challenges and a hurdle for scalable bioprocessing. Thus, an understanding of the relationship between EV production (and for clinical applications, manufacturing) and EV composition is increasingly recognized as important and necessary. While chemical stimulation and culture conditions such as cell density are known to influence EV biology, the impact of biomechanical forces on the generation, properties, and biological activity of EVs remains poorly understood. Given the omnipresence of these forces in EV preparation and in biomanufacturing, expanding the understanding of their impact on EV composition-and thus, activity-is vital. Although several publications have examined EV preparation and bioprocessing and briefly discussed biomechanical stresses as variables of interest, this review represents the first comprehensive evaluation of the impact of such stresses on EV production, composition and biological activity. We review how EV biogenesis, cargo, efficacy, and uptake are uniquely affected by various types, magnitudes, and durations of biomechanical forces, identifying trends that emerge both generically and for individual cell types. We also describe implications for scalable bioprocessing, evaluating processes inherent in common EV production and isolation methods, and propose a path forward for rigorous EV quality control.
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Affiliation(s)
- Will Thompson
- Department of Chemical and Biomolecular Engineering, University of Delaware, 590 Avenue 1743, Newark, DE 19713, USA
| | - Eleftherios Terry Papoutsakis
- Department of Chemical and Biomolecular Engineering, University of Delaware, 590 Avenue 1743, Newark, DE 19713, USA.
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Chen Y, Zhang C. Role of noncoding RNAs in orthodontic tooth movement: new insights into periodontium remodeling. J Transl Med 2023; 21:101. [PMID: 36759852 PMCID: PMC9912641 DOI: 10.1186/s12967-023-03951-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
Orthodontic tooth movement (OTM) is biologically based on the spatiotemporal remodeling process in periodontium, the mechanisms of which remain obscure. Noncoding RNAs (ncRNAs), especially microRNAs and long noncoding RNAs, play a pivotal role in maintaining periodontal homeostasis at the transcriptional, post-transcriptional, and epigenetic levels. Under force stimuli, mechanosensitive ncRNAs with altered expression levels transduce mechanical load to modulate intracellular genes. These ncRNAs regulate the biomechanical responses of periodontium in the catabolic, anabolic, and coupling phases throughout OTM. To achieve this, down or upregulated ncRNAs actively participate in cell proliferation, differentiation, autophagy, inflammatory, immune, and neurovascular responses. This review highlights the regulatory mechanism of fine-tuning ncRNAs in periodontium remodeling during OTM, laying the foundation for safe, precise, and personalized orthodontic treatment.
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Affiliation(s)
- Yuming Chen
- grid.284723.80000 0000 8877 7471Stomatological Hospital, Southern Medical University, Guangzhou, 510280 China
| | - Chao Zhang
- Stomatological Hospital, Southern Medical University, Guangzhou, 510280, China.
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Yin C, Zhang S, Ya C, Wang C, Liang Y, Wang C. sncRNA changes induced by tension in hypertrophic scar. Acta Biochim Biophys Sin (Shanghai) 2022; 54:1197-1200. [PMID: 35983974 PMCID: PMC9827810 DOI: 10.3724/abbs.2022103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
- Chuang Yin
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China
| | - Shixi Zhang
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China
| | - Chen Ya
- Department of RadiologyShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China
| | - Chuandong Wang
- Department of Orthopedic SurgeryXinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai200092China.
| | - Yimin Liang
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China,Correspondence address. Tel: +86-13661614007; E-mail: (Y.L.) / Tel: +86-13817709779; E-mail: (C.W.) @163.com
| | - Chen Wang
- Department of Plastic and Reconstructive SurgeryShanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai200011China,Correspondence address. Tel: +86-13661614007; E-mail: (Y.L.) / Tel: +86-13817709779; E-mail: (C.W.) @163.com
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Peng Z, Mai Z, Xiao F, Liu G, Wang Y, Xie S, Ai H. MiR-20a: a mechanosensitive microRNA that regulates fluid shear stress-mediated osteogenic differentiation via the BMP2 signaling pathway by targeting BAMBI and SMAD6. ANNALS OF TRANSLATIONAL MEDICINE 2022; 10:683. [PMID: 35845505 PMCID: PMC9279817 DOI: 10.21037/atm-22-2753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/20/2022] [Indexed: 11/06/2022]
Abstract
Background MicroRNAs (miRNAs) are crucial regulators of diverse biological and pathological processes. This study aimed to investigate the role of microRNA 20a (miR-20a) in fluid shear stress (FSS)-mediated osteogenic differentiation. Methods In the present study, we subjected osteoblast MC3T3-E1 cells or mouse bone marrow stromal cells (BMSCs) to single bout short duration FSS (12 dyn/cm2 for 1 hour) using a parallel plate flow system. The expression of miR-20a was quantified by miRNA array profiling and real-time quantitative polymerase chain reaction (qRT-PCR) during FSS-mediated osteogenic differentiation. The expression of osteogenic differentiation markers such as Runt-related transcription factor 2 (RUNX2), alkaline phosphatase (ALP), and SP7 transcription factor (SP7) was detected. Bioinformatics analysis and a luciferase assay were performed to confirm the potential targets of miR-20a. Results Osteoblast-expressed miR-20a is sensitive to the mechanical environments of FSS, which are differentially up-regulated during steady FSS-mediated osteogenic differentiation. MiR-20a enhances FSS-induced osteoblast differentiation by activating the bone morphogenetic protein 2 (BMP2) signaling pathway. Both BMP and activin membrane-bound inhibitor (BAMBI) and mothers against decapentaplegic family member 6 (SMAD6) are targets of miR-20a that negatively regulate the BMP2 signaling pathway. Conclusions MiR-20a is a novel mechanosensitive miRNA that can enhance osteoblast differentiation in FSS mechanical environments, implying that this miRNA might be a target for bone tissue engineering and orthodontic bone remodeling for regenerative medicine applications.
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Affiliation(s)
- Zhuli Peng
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhihui Mai
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Feng Xiao
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Guanqi Liu
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University and Guangdong Provincial Key Laboratory of Stomatology, Guangzhou, China
| | - Yixuan Wang
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Shanshan Xie
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Hong Ai
- Department of Stomatology, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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10
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Segars KL, Azzari NA, Gomez S, Machen C, Rich CB, Trinkaus-Randall V. Age Dependent Changes in Corneal Epithelial Cell Signaling. Front Cell Dev Biol 2022; 10:886721. [PMID: 35602595 PMCID: PMC9117764 DOI: 10.3389/fcell.2022.886721] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 04/19/2022] [Indexed: 11/25/2022] Open
Abstract
The cornea is exposed daily to a number of mechanical stresses including shear stress from tear film and blinking. Over time, these stressors can lead to changes in the extracellular matrix that alter corneal stiffness, cell-substrate structures, and the integrity of cell-cell junctions. We hypothesized that changes in tissue stiffness of the cornea with age may alter calcium signaling between cells after injury, and the downstream effects of this signaling on cellular motility and wound healing. Nanoindentation studies revealed that there were significant differences in the stiffness of the corneal epithelium and stroma between corneas of 9- and 27-week mice. These changes corresponded to differences in the timeline of wound healing and in cell signaling. Corneas from 9-week mice were fully healed within 24 h. However, the wounds on corneas from 27-week mice remained incompletely healed. Furthermore, in the 27-week cohort there was no detectable calcium signaling at the wound in either apical or basal corneal epithelial cells. This is in contrast to the young cohort, where there was elevated basal cell activity relative to background levels. Cell culture experiments were performed to assess the roles of P2Y2, P2X7, and pannexin-1 in cellular motility during wound healing. Inhibition of P2Y2, P2X7, or pannexin-1 all significantly reduce wound closure. However, the inhibitors all have different effects on the trajectories of individual migrating cells. Together, these findings suggest that there are several significant differences in the stiffness and signaling that underlie the decreased wound healing efficacy of the cornea in older mice.
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Affiliation(s)
- Kristen L. Segars
- Department of Pharmacology, School of Medicine, Boston University, Boston, MA, United States
| | - Nicholas A. Azzari
- Department of Biochemistry, School of Medicine, Boston University, Boston, MA, United States
| | - Stephanie Gomez
- Department of Biochemistry, School of Medicine, Boston University, Boston, MA, United States
| | - Cody Machen
- Department of Biochemistry, School of Medicine, Boston University, Boston, MA, United States
| | - Celeste B. Rich
- Department of Ophthalmology, School of Medicine, School of Medicine, Boston, MA, United States
| | - Vickery Trinkaus-Randall
- Department of Biochemistry, School of Medicine, Boston University, Boston, MA, United States
- Department of Ophthalmology, School of Medicine, School of Medicine, Boston, MA, United States
- *Correspondence: Vickery Trinkaus-Randall,
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Cai J, Li C, Li S, Yi J, Wang J, Yao K, Gan X, Shen Y, Yang P, Jing D, Zhao Z. A Quartet Network Analysis Identifying Mechanically Responsive Long Noncoding RNAs in Bone Remodeling. Front Bioeng Biotechnol 2022; 10:780211. [PMID: 35356768 PMCID: PMC8959777 DOI: 10.3389/fbioe.2022.780211] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2021] [Accepted: 01/20/2022] [Indexed: 12/13/2022] Open
Abstract
Mechanical force, being so ubiquitous that it is often taken for granted and overlooked, is now gaining the spotlight for reams of evidence corroborating their crucial roles in the living body. The bone, particularly, experiences manifold extraneous force like strain and compression, as well as intrinsic cues like fluid shear stress and physical properties of the microenvironment. Though sparkled in diversified background, long noncoding RNAs (lncRNAs) concerning the mechanotransduction process that bone undergoes are not yet detailed in a systematic way. Our principal goal in this research is to highlight the potential lncRNA-focused mechanical signaling systems which may be adapted by bone-related cells for biophysical environment response. Based on credible lists of force-sensitive mRNAs and miRNAs, we constructed a force-responsive competing endogenous RNA network for lncRNA identification. To elucidate the underlying mechanism, we then illustrated the possible crosstalk between lncRNAs and mRNAs as well as transcriptional factors and mapped lncRNAs to known signaling pathways involved in bone remodeling and mechanotransduction. Last, we developed combinative analysis between predicted and established lncRNAs, constructing a pathway–lncRNA network which suggests interactive relationships and new roles of known factors such as H19. In conclusion, our work provided a systematic quartet network analysis, uncovered candidate force-related lncRNAs, and highlighted both the upstream and downstream processes that are possibly involved. A new mode of bioinformatic analysis integrating sequencing data, literature retrieval, and computational algorithm was also introduced. Hopefully, our work would provide a moment of clarity against the multiplicity and complexity of the lncRNA world confronting mechanical input.
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Affiliation(s)
- Jingyi Cai
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chaoyuan Li
- Department of Oral Implantology, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, School and Hospital of Stomatology, Tongji University, Shanghai, China
| | - Shun Li
- Institute of Engineering Medicine, Beijing Institute of Technology, Beijing, China
| | - Jianru Yi
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jun Wang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ke Yao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xinyan Gan
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yu Shen
- School of Basic Medical Sciences, Chengdu University, Chengdu, China
| | - Pu Yang
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Dian Jing
- Department of Orthodontics, China Shanghai Ninth People’s Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai Jiao Tong University, Shanghai, China
- *Correspondence: Dian Jing, ; Zhihe Zhao,
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases and National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
- *Correspondence: Dian Jing, ; Zhihe Zhao,
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12
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Katta M, Cumpătă CN, Ţuculină MJ, Lazăr AC, Manolea HO, Mocanu H, Mărăşescu FI, Petrescu SMS, Dascălu IT, Dascălu IT. Clinical, histopathological and immunohistochemical changes of the superficial marginal periodontium caused by orthodontic treatment with fixed metallic orthodontic appliances. ROMANIAN JOURNAL OF MORPHOLOGY AND EMBRYOLOGY = REVUE ROUMAINE DE MORPHOLOGIE ET EMBRYOLOGIE 2022; 63:431-438. [PMID: 36374148 PMCID: PMC9801678 DOI: 10.47162/rjme.63.2.14] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Malocclusions negatively influence dental function, physical well-being, and quality of life. According to data provided by the World Health Organization (WHO), malocclusions represent the third most widespread oral health problem, after dental caries and periodontal diseases. In recent years, more and more people call for orthodontic treatment with fixed braces that aim at establishing a dental, aesthetic, and functional balance, compatible with a normal life. Our study assessed the histopathological and immunohistochemical changes that occurred in superficial marginal periodontal components, in a number of 23 patients diagnosed with malocclusions, as a result of orthodontic treatment with fixed metal braces. The purpose of the study was to evaluate the remodeling of the tissues in the superficial periodontium during orthodontic migration, microscopic aspects that are essential to evaluate the effectiveness of the orthodontic treatment.
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Affiliation(s)
- Mahmoud Katta
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Titu Maiorescu University, Bucharest, Romania; ; Department of Orthodontics, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, Romania;
| | - Cristian Niky Cumpătă
- Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Titu Maiorescu University, Bucharest, Romania
| | - Mihaela Jana Ţuculină
- Department of Endodontics, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, Romania
| | - Adela Cristina Lazăr
- Department of Oral Rehabilitation, Iuliu Haţieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Horia Octavian Manolea
- Department of Dental Materials, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, Romania
| | - Horia Mocanu
- Department of ENT & HNS, Faculty of Medicine, Titu Maiorescu University, Bucharest, Romania
| | - Felicia Ileana Mărăşescu
- Department of Orthodontics, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, Romania
| | | | - Ionela Teodora Dascălu
- Department of Orthodontics, Faculty of Dentistry, University of Medicine and Pharmacy of Craiova, Romania
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13
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The Regulation of Collagen Processing by miRNAs in Disease and Possible Implications for Bone Turnover. Int J Mol Sci 2021; 23:ijms23010091. [PMID: 35008515 PMCID: PMC8745169 DOI: 10.3390/ijms23010091] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 12/20/2021] [Accepted: 12/21/2021] [Indexed: 12/15/2022] Open
Abstract
This article describes several recent examples of miRNA governing the regulation of the gene expression involved in bone matrix construction. We present the impact of miRNA on the subsequent steps in the formation of collagen type I. Collagen type I is a main factor of mechanical bone stiffness because it constitutes 90–95% of the organic components of the bone. Therefore, the precise epigenetic regulation of collagen formation may have a significant influence on bone structure. We also describe miRNA involvement in the expression of genes, the protein products of which participate in collagen maturation in various tissues and cancer cells. We show how non-collagenous proteins in the extracellular matrix are epigenetically regulated by miRNA in bone and other tissues. We also delineate collagen mineralisation in bones by factors that depend on miRNA molecules. This review reveals the tissue variability of miRNA regulation at different levels of collagen maturation and mineralisation. The functionality of collagen mRNA regulation by miRNA, as proven in other tissues, has not yet been shown in osteoblasts. Several collagen-regulating miRNAs are co-expressed with collagen in bone. We suggest that collagen mRNA regulation by miRNA could also be potentially important in bone metabolism.
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14
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Liang W, Wu X, Dong Y, Chen X, Zhou P, Xu F. Mechanical stimuli-mediated modulation of bone cell function-implications for bone remodeling and angiogenesis. Cell Tissue Res 2021; 386:445-454. [PMID: 34665321 DOI: 10.1007/s00441-021-03532-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 09/21/2021] [Indexed: 12/20/2022]
Abstract
Bone remodeling, expressed as bone formation and turnover, is a complex and dynamic process closely related to its form and function. Different events, such as development, aging, and function, play a critical role in bone remodeling and metabolism. The ability of the bone to adapt to new loads and forces has been well known and has proven useful in orthopedics and insightful for research in bone and cell biology. Mechanical stimulation is one of the most important drivers of bone metabolism. Interestingly, different types of forces will have specific consequences in bone remodeling, and their beneficial effects can be traced using different biomarkers. In this narrative review, we summarize the major mediators and events in bone remodeling, focusing on the effects of mechanical stimulation on bone metabolism, cell populations, and ultimately, bone health.
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Affiliation(s)
- Wenqing Liang
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan 316000, Zhejiang Province, People's Republic of China.
| | - Xudong Wu
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan 316000, Zhejiang Province, People's Republic of China
| | - Yongqiang Dong
- Department of Orthopaedics, Xinchang People's Hospital, Shaoxing, 312500, Zhejiang Province, People's Republic of China
| | - Xuerong Chen
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, 312000, Zhejiang Province, People's Republic of China
| | - Ping Zhou
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital, Zhejiang University School of Medicine, Shaoxing, 312000, Zhejiang Province, People's Republic of China
| | - Fangming Xu
- Department of Orthopaedics, Zhoushan Hospital of Traditional Chinese Medicine Affiliated to Zhejiang Chinese Medical University, 355 Xinqiao Road, Dinghai District, Zhoushan 316000, Zhejiang Province, People's Republic of China.
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15
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Nokhbatolfoghahaei H, Rad MR, Paknejad Z, Ardeshirylajimi A, Khojasteh A. Identification osteogenic signaling pathways following mechanical stimulation: A systematic review. Curr Stem Cell Res Ther 2021; 17:772-792. [PMID: 34615453 DOI: 10.2174/1574888x16666211006105915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 07/17/2021] [Accepted: 07/26/2021] [Indexed: 11/22/2022]
Abstract
INTRODUCTION It has been shown that mechanical forces can induce or promote osteogenic differentiation as well as remodeling of the new created bone tissues. To apply this characteristic in bone tissue engineering, it is important to know which mechanical stimuli through which signaling pathway has a more significant impact on osteogenesis. METHODS In this systematic study, an electronic search was conducted using PubMed and Google Scholar databases. This study has been prepared and organized according to the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines. Included studies were first categorized according to the in vivo and in vitro studies. RESULTS Six types of mechanical stresses were used in these articles and the most commonly used mechanical force and cell source were tension and bone marrow-derived mesenchymal stem cells (BMMSCs), respectively. These forces were able to trigger twelve signaling pathways in which Wnt pathway was so prominent. CONCLUSION 1) Although specific signaling pathways are induced through specific mechanical forces, Wnt signaling pathways are predominantly activated by almost all types of force/stimulation, 2) All signaling pathways regulate expression of RUNX2, which is known as a master regulator of osteogenesis, 3) In Tension force, the mode of force administration, i.e, continuous or non-continuous tension is more important than the percentage of elongation.
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Affiliation(s)
- Hanieh Nokhbatolfoghahaei
- Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Maryam Rezai Rad
- Dental Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Zahrasadat Paknejad
- Medical nanotechnology and tissue engineering research Center, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Abdolreza Ardeshirylajimi
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran. Iran
| | - Arash Khojasteh
- Department of Tissue Engineering, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran. Iran
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16
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Yang H, Cao Z, Wang Y, Wang J, Gao J, Han B, Yu F, Qin Y, Guo Y. Treadmill exercise influences the microRNA profiles in the bone tissues of mice. Exp Ther Med 2021; 22:1035. [PMID: 34373721 PMCID: PMC8343800 DOI: 10.3892/etm.2021.10467] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 05/28/2021] [Indexed: 12/12/2022] Open
Abstract
As an important regulator involved in cell activity, microRNAs (miRNAs) are important in the process of exercise influencing bone metabolism. The present study aimed to detect and select differentially expressed miRNAs in the bone tissues of mice trained on a treadmill, predict the target genes of these differentially expressed miRNAs and lay a foundation for exploring the effect of treadmill training on bone metabolism through miRNAs. In this experiment, after the mice were trained on a treadmill for 8 weeks, the mechanical properties of mouse femur bone were assessed, and the alkaline phosphatase (ALP) activity and osteocalcin (OCN) protein levels of the bone were assayed. miRNA microarray and reverse transcription-quantitative (RT-q)PCR were performed to select and validate differentially expressed miRNAs in the bone, and the target genes of these miRNAs were predicted with bioinformatics methods. In addition, the differentially expressed miRNAs in the bone tissues were compared with those in mechanically strained osteocytes in vitro. Treadmill training improved the mechanical properties of the femur bones of mice, and elevated the ALP activity and OCN protein level in the bone. In addition, 122 differentially expressed miRNAs were detected in the bone, of which nine were validated via RT-qPCR. Among the target genes of these differentially expressed miRNAs, certain candidates were involved in bone metabolism. A total of eight miRNAs were differentially expressed in both bone tissue and osteocytes, exhibiting the same expression trends, and various target genes of these eight miRNAs were also involved in bone metabolism. Treadmill training resulted in altered miRNA expression profiles in the bones of mice (mainly in osteocytes) and the differentially expressed miRNAs may serve important roles in regulating bone metabolism and osteogenic differentiation.
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Affiliation(s)
- Huan Yang
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Zhen Cao
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Yang Wang
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China.,Department of Biomedical Engineering, Bioengineering College of Chongqing University, Chongqing 400044, P.R. China
| | - Jiahui Wang
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Jintao Gao
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Biao Han
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Fangmei Yu
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Yixiong Qin
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
| | - Yong Guo
- Department of Biomedical Engineering, College of Biotechnology, Guilin Medical University, Guilin, Guangxi 541004, P.R. China
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17
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Mechanical stimulation induced osteogenic differentiation of BMSCs through TWIST/E2A/p21 axis. Biosci Rep 2021; 40:222707. [PMID: 32309849 PMCID: PMC7199451 DOI: 10.1042/bsr20193876] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/02/2020] [Accepted: 04/16/2020] [Indexed: 12/11/2022] Open
Abstract
The relationship between mechanical force and alveolar bone remodeling is an important issue in orthodontics because tooth movement is dependent on the response of bone tissue to the mechanical force induced by the appliances used. Mechanical cyclical stretch plays an essential role in the cell osteogenic differentiation involved in bone remodeling. However, the underlying mechanisms are unclear, particularly the molecular pathways regulated by mechanical stimulation. In the present study, we reported a dynamic change of p21 level in response to mechanical cyclical stretch, and shRNA-p21 in bone marrow mesenchymal stem cells (BMSCs) induced osteogenic differentiation. The mechanism was mediated through TWIST/E2A/p21 axis. These results supported the mechanical stimulation-induced osteogenic differentiation is negatively regulated by p21.
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18
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Mitteroecker P, Bartsch S, Erkinger C, Grunstra NDS, Le Maître A, Bookstein FL. Morphometric Variation at Different Spatial Scales: Coordination and Compensation in the Emergence of Organismal Form. Syst Biol 2021; 69:913-926. [PMID: 32011716 PMCID: PMC7440742 DOI: 10.1093/sysbio/syaa007] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 01/27/2020] [Accepted: 01/29/2020] [Indexed: 12/16/2022] Open
Abstract
It is a classic aim of quantitative and evolutionary biology to infer genetic architecture and potential evolutionary responses to selection from the variance–covariance structure of measured traits. But a meaningful genetic or developmental interpretation of raw covariances is difficult, and classic concepts of morphological integration do not directly apply to modern morphometric data. Here, we present a new morphometric strategy based on the comparison of morphological variation across different spatial scales. If anatomical elements vary completely independently, then their variance accumulates at larger scales or for structures composed of multiple elements: morphological variance would be a power function of spatial scale. Deviations from this pattern of “variational self-similarity” (serving as a null model of completely uncoordinated growth) indicate genetic or developmental coregulation of anatomical components. We present biometric strategies and R scripts for identifying patterns of coordination and compensation in the size and shape of composite anatomical structures. In an application to human cranial variation, we found that coordinated variation and positive correlations are prevalent for the size of cranial components, whereas their shape was dominated by compensatory variation, leading to strong canalization of cranial shape at larger scales. We propose that mechanically induced bone formation and remodeling are key mechanisms underlying compensatory variation in cranial shape. Such epigenetic coordination and compensation of growth are indispensable for stable, canalized development and may also foster the evolvability of complex anatomical structures by preserving spatial and functional integrity during genetic responses to selection.[Cranial shape; developmental canalization; evolvability; morphological integration; morphometrics; phenotypic variation; self-similarity.]
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Affiliation(s)
- Philipp Mitteroecker
- Department of Evolutionary Biology, University of Vienna, Vienna, Austria.,KLI Institute for Evolution and Cognition Research, Klosterneuburg, Austria
| | - Silvester Bartsch
- Department of Evolutionary Biology, University of Vienna, Vienna, Austria
| | - Corinna Erkinger
- Department of Evolutionary Biology, University of Vienna, Vienna, Austria
| | - Nicole D S Grunstra
- Department of Evolutionary Biology, University of Vienna, Vienna, Austria.,KLI Institute for Evolution and Cognition Research, Klosterneuburg, Austria.,Mammal Collection, Natural History Museum Vienna, Vienna, Austria
| | - Anne Le Maître
- Department of Evolutionary Biology, University of Vienna, Vienna, Austria.,Laboratoire Paléontologie Evolution Paléoécosystèmes Paléoprimatologie (PALEVOPRIM) - UMR 7262 CNRS INEE, Université de Poitiers, Poitiers, France.,Department of Palaeontology, University of Vienna, Vienna, Austria
| | - Fred L Bookstein
- Department of Evolutionary Biology, University of Vienna, Vienna, Austria.,Department of Statistics, University of Washington, Seattle, WA, USA
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Zhang B, Yang L, Zheng W, Lin T. MicroRNA-34 expression in gingival crevicular fluid correlated with orthodontic tooth movement. Angle Orthod 2020; 90:702-706. [PMID: 33378474 PMCID: PMC8032257 DOI: 10.2319/090219-574.1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2019] [Accepted: 01/01/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVES To explore the expression of miR-34a and its effect on expression of matrix metalloproteinases (MMPs) during orthodontic tooth movement (OTM). MATERIALS AND METHODS Twenty patients, age 12-18 years old, who underwent orthodontic treatment were enrolled. The expression of miR-34a and MMPs (MMP-1, MMP-2, MMP-3, MMP-8, MMP-9, and MMP-14) were detected in gingival crevicular fluid by enzyme-linked immunosorbent assay (ELISA) and polymerase chain reaction at different time points. The miR-34a mimics or inhibitors were transfected into human periodontal ligament (hPDL) cells, and the MMP expression was measured by ELISA. RESULTS The miR-34 expression in GCF on both the tension and pressure sides after orthodontic treatment were significantly downregulated, while the levels of MMPs were significantly upregulated compared with baseline level. The levels of miR-34 and MMPs returned to baseline level 3 months after orthodontic treatment. The expression of miR-34 was negatively correlated with the expression of MMP-2, MMP-9, and MMP-14. After transfection with miR-34, the MMP-2, MMP-9, and MMP-14 expression by hPDL cells were significantly downregulated compared with miR-control and miR-34 inhibitor. CONCLUSIONS Downregulated miR-34 expression was positively correlated with MMP-2, MMP-9, and MMP-14 expression. The miR-34a transfection into hPDL cells inhibited expression of MMPs. The results suggest that miR-34a is involved in expression of MMPs during OTM.
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20
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Hosseini HS, Wood LS, Taylor JS, Dubrovsky G, Portelli KI, Thomas AL, Dunn JC. Biomechanical signaling and collagen fiber reorientation during distraction enterogenesis. J Mech Behav Biomed Mater 2020; 101:103425. [DOI: 10.1016/j.jmbbm.2019.103425] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/16/2019] [Accepted: 09/09/2019] [Indexed: 12/11/2022]
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21
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Alfieri R, Vassalli M, Viti F. Flow-induced mechanotransduction in skeletal cells. Biophys Rev 2019; 11:729-743. [PMID: 31529361 DOI: 10.1007/s12551-019-00596-1] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Accepted: 09/03/2019] [Indexed: 12/15/2022] Open
Abstract
Human body is subject to many and variegated mechanical stimuli, actuated in different ranges of force, frequency, and duration. The process through which cells "feel" forces and convert them into biochemical cascades is called mechanotransduction. In this review, the effects of fluid shear stress on bone cells will be presented. After an introduction to present the major players in bone system, we describe the mechanoreceptors in bone tissue that can feel and process fluid flow. In the second part of the review, we present an overview of the biological processes and biochemical cascades initiated by fluid shear stress in bone cells.
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Affiliation(s)
- Roberta Alfieri
- Institute of Molecular Genetics "Luigi Luca Cavalli-Sforza" - National Research Council (IGM-CNR), Via Abbiategrasso, 207, 27100, Pavia, Italy
| | - Massimo Vassalli
- Institute of Biophysics - National Research Council (IBF-CNR), Via De Marini, 6, 16149, Genoa, Italy
| | - Federica Viti
- Institute of Biophysics - National Research Council (IBF-CNR), Via De Marini, 6, 16149, Genoa, Italy.
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22
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Jia H, Tian A, Zhang X, Ma X, Ma J, Wang J, Sun L, Lu B. The effect of tail suspension and treadmill exercise on LRP6 expression, bone mass and biomechanical properties of hindlimb bones in SD rats. Am J Transl Res 2019; 11:5847-5857. [PMID: 31632553 PMCID: PMC6789212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 07/16/2019] [Indexed: 06/10/2023]
Abstract
Purpose: To investigate whether mechanical load regulates LRP6 expression and whether different intensities of treadmill exercise have different effects on LRP6 expression and the biomechanical properties of hindlimb bones in Sprague-Dawley (SD) rats. Methods: Fifty-six three-month-old virgin female SD rats were randomly divided into seven groups (n=8). Each group was subjected to tail suspension, free physiological activity or different intensities of treadmill exercise according to the experimental design for four or eight weeks. Rats were sacrificed after the intervention based on experimental design, and fresh femurs, tibias and fibulas were harvested for molecular biological analysis, biomechanical testing and micro-CT analysis. Results: LRP6 expression and the Wnt/β-catenin pathway activity decreased, and bone mass and biomechanical properties decreased after loss of mechanical stimulation. For disuse osteoporosis, even physiological activity could improve LRP6 expression, Wnt/β-catenin pathway activity, bone mass and biomechanical properties. Compared with physiological activity, treadmill exercise had better and faster effects on bone recovery. Compared with the Low intensity Exercise Group (LE group), the Medium intensity Exercise Group (ME group) and High intensity Exercise Group (HE group) had higher LRP6 expression, bone mass and biomechanical properties, while there were no significant difference between the ME group and HE group. Conclusions: Mechanical load appears to be a regulator of LRP6 expression, and it further affects the Wnt/β-catenin pathway activity and bone mass. The LRP6 expression, bone mass and biomechanical properties gradually improve as treadmill exercise intensity increases, while there is no significant difference between the ME group and HE group.
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Affiliation(s)
- Haobo Jia
- Orthopaedics Institute, Tianjin Hospital, Tianjin UniversityJiefang Nan Road 406, Hexi District, Tianjin 300211, P. R. China
- Tianjin Medical UniversityQixiangtai Road 22, Heping District, Tianjin 300070, P. R. China
| | - Aixian Tian
- Orthopedic Research Institute, Tianjin Hospital Heping Branch, Tianjin UniversityMunan Street 122, Heping District, Tianjin 300050, P. R. China
| | - Xiaoyu Zhang
- Orthopaedics Institute, First Teaching Hospital of Tianjin University of Traditional Chinese MedicineChang Ling Road 88, Xiqing District, Tianjin 300381, P. R. China
| | - Xinlong Ma
- Orthopaedics Institute, Tianjin Hospital, Tianjin UniversityJiefang Nan Road 406, Hexi District, Tianjin 300211, P. R. China
| | - Jianxiong Ma
- Orthopedic Research Institute, Tianjin Hospital Heping Branch, Tianjin UniversityMunan Street 122, Heping District, Tianjin 300050, P. R. China
| | - Jie Wang
- Orthopaedics Institute, Tianjin Hospital, Tianjin UniversityJiefang Nan Road 406, Hexi District, Tianjin 300211, P. R. China
| | - Lei Sun
- Orthopedic Research Institute, Tianjin Hospital Heping Branch, Tianjin UniversityMunan Street 122, Heping District, Tianjin 300050, P. R. China
| | - Bin Lu
- Orthopedic Research Institute, Tianjin Hospital Heping Branch, Tianjin UniversityMunan Street 122, Heping District, Tianjin 300050, P. R. China
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Sabatino J, Wicik Z, De Rosa S, Eyileten C, Jakubik D, Spaccarotella C, Mongiardo A, Postula M, Indolfi C. MicroRNAs fingerprint of bicuspid aortic valve. J Mol Cell Cardiol 2019; 134:98-106. [DOI: 10.1016/j.yjmcc.2019.07.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 06/17/2019] [Accepted: 07/01/2019] [Indexed: 02/07/2023]
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