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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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miR-23b-3p, miR-124-3p and miR-218-5p Synergistic or Additive Effects on Cellular Processes That Modulate Cervical Cancer Progression? A Molecular Balance That Needs Attention. Int J Mol Sci 2022; 23:ijms232113551. [PMID: 36362337 PMCID: PMC9658720 DOI: 10.3390/ijms232113551] [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: 09/18/2022] [Revised: 10/17/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
Abstract
In cervical cancer (CC), miR-23b-3p, miR-124-3p, and miR-218-5p have been found to act as tumor suppressors by regulating cellular processes related to progression and metastasis. The objective of the present review is to provide an update on the experimental evidence about the role of miR-23b-3p, miR-124-3p, and miR-218-5p in the regulation of CC progression. Additionally, we present the results of a bioinformatic analysis that suggest that these miRNAs have a somewhat redundant role in the same cellular processes that may result in a synergistic effect to promote CC progression. The results indicate that specific and common target genes for miR-23b-3p, miR-124-3p, and miR-218-5p regulate proliferation, migration, apoptosis, and angiogenesis, all processes that are related to CC maintenance and progression. Furthermore, several target genes may regulate cancer-related signaling pathways. We found that a total of 271 proteins encoded by the target mRNAs of miR-23b-3p, miR-124-3p, or miR-218-5p interact to regulate the cellular processes previously mentioned, and some of these proteins are regulated by HPV-16 E7. Taken together, information analysis indicates that miR-23b-3p, miR-124-3p, and miR-218-5p may potentiate their effects to modulate the cellular processes related to the progression and maintenance of CC with and without HPV-16 involvement.
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Farhan A, Yuan F, Partan E, Weiss CR. Clinical manifestations of patients with GDF2 mutations associated with hereditary hemorrhagic telangiectasia type 5. Am J Med Genet A 2021; 188:199-209. [PMID: 34611981 DOI: 10.1002/ajmg.a.62522] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 09/05/2021] [Accepted: 09/11/2021] [Indexed: 12/29/2022]
Abstract
Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant fibrovascular dysplasia caused by mutations in ENG, ACVRL1, and SMAD4. Increasingly, there has been an appreciation for vascular conditions with phenotypic overlap to HHT but which have distinct clinical manifestations and arise from novel or uncharacterized gene variants. This study reported on a cohort of four unrelated probands who were diagnosed with a rare form of GDF2-related HHT5, for which only five prior cases have been described. Two patients harbored heterozygous missense variants not previously annotated as pathogenic (p.Val403Ile; p.Glu355Gln). Clinically, these patients had features resembling HHT1, including cerebrovascular involvement of their disease (first report documenting cerebral involvement of HHT5), but with earlier onset of epistaxis and a unique anatomic distribution of dermal capillary lesions that involved the upper forelimbs, trunk, and head. The other two patients harbored interstitial deletions larger than five megabases between 10q11.22 and 10q11.23 that included GDF2. To our knowledge, this is the first report detailing large genomic deletions leading to HHT5. These patients also demonstrated mucocutaneous capillary dysplasias, including intranasal vascular lesions complicated by childhood-onset epistasis, with a number of extravascular findings related to their 10q11.21q11.23 deletion. In conclusion, patients with GDF2-related HHT may present with a number of unique characteristics that differ from classically reported features of HHT.
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Affiliation(s)
- Ahmed Farhan
- Division of Interventional Radiology, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Frank Yuan
- Division of Interventional Radiology, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Elizabeth Partan
- McKusick-Nathans Institute of Genetic Medicine, Department of Genetic Medicine, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Clifford R Weiss
- Division of Interventional Radiology, Russell H. Morgan Department of Radiology and Radiological Sciences, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Teng Z, Zhu Y, Hao Q, Yu X, Teng Y, Yue Q, Zhang X, Lu S. Long non-coding RNA taurine upregulated gene 1 is downregulated in osteoporosis and influences the osteogenic differentiation of bone marrow mesenchymal stem cells. PeerJ 2021; 9:e11251. [PMID: 33976977 PMCID: PMC8063876 DOI: 10.7717/peerj.11251] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 03/19/2021] [Indexed: 01/07/2023] Open
Abstract
Background With aging, an imbalance in bone remodeling leading to increased bone resorption and decreased bone formation is thought to contribute to osteoporosis. Osteoblastic differentiation of bone marrow mesenchymal stem cells (BMMSCs) plays a vital role in the pathogenesis of osteoporosis. However, the detailed molecular mechanisms of osteoporosis remain incompletely understood. Given that long non-coding RNA taurine upregulated gene 1 (lnc TUG1) plays a critical role in the osteogenic differentiation, and microRNA-23b (miR-23b) as a putative sponge for lnc TUG1 has upregulated expression in osteoporosis. Therefore, this study investigated the roles of TUG1/miR-23b in osteoporotic pathology. Material and Methods TUG1 and miR-23b expression in the plasma of osteoporotic patients were evaluated by quantitative real-time PCR (qRT-PCR). The osteogenic differentiation in human BMMSCs was evaluated by qRT-PCR, western blot, Alizarin red staining after knockdown of TUG1 by small interfering RNA (siRNA) treatment. Results Decreased expression of TUG1 and increased expression of miR-23b evident in the plasma of patients with osteoporosis than in that of age- and sex-matched healthy controls. Additionally, increased miR-23b expression inhibited runt-related transcription factor 2 (RUNX2), osteocalcin, and osteopontin expression and reduced calcified nodule formation based on the results of qRT-PCR, western blot, and Alizarin Red S staining. Conclusion The study for the first time reported that silence of lncRNA TUG1 significantly suppressed the osteogenic differentiation of BMMSCs possibly by targeting the miR-23b/RUNX2 signaling pathway. This mechanism of TUG1/miR-23b/RUNX2 signaling within the osteogenic differentiation of BMMSCs might provide new insight for the development of lncRNA-directed diagnostic and therapeutic strategies for osteoporosis.
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Affiliation(s)
- Zhaowei Teng
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China.,Yunnan Key Laboratory of Digital Orthopedics, The First People's Hospital of Yunnan Province, Kunming, Yunan, China.,Kunming Medical University, The 920th Hospital, Kunming, Kunming, Yunan, China
| | - Yun Zhu
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China
| | - Qinggang Hao
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China
| | - Xiaochao Yu
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China
| | - Yirong Teng
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China
| | - Qiaoning Yue
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China
| | - Xiguang Zhang
- The Sixth Affiliated Hospital of Kunming Medical University, Yuxi, Yunan, China
| | - Sheng Lu
- Yunnan Key Laboratory of Digital Orthopedics, The First People's Hospital of Yunnan Province, Kunming, Yunan, China.,Kunming Medical University, The 920th Hospital, Kunming, Kunming, Yunan, China
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Tang N, Rao S, Ying Y, Huang Y. New insights into BMP9 signaling in organ fibrosis. Eur J Pharmacol 2020; 882:173291. [DOI: 10.1016/j.ejphar.2020.173291] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/15/2020] [Accepted: 06/16/2020] [Indexed: 12/13/2022]
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Wang T, Zhang C, Wu C, Liu J, Yu H, Zhou X, Zhang J, Wang X, He S, Xu X, Ma B, Che X, Li W. miR-765 inhibits the osteogenic differentiation of human bone marrow mesenchymal stem cells by targeting BMP6 via regulating the BMP6/Smad1/5/9 signaling pathway. Stem Cell Res Ther 2020; 11:62. [PMID: 32059748 PMCID: PMC7023766 DOI: 10.1186/s13287-020-1579-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 01/06/2020] [Accepted: 02/04/2020] [Indexed: 01/20/2023] Open
Abstract
Background The process of bone repair is heavily dependent on the ability of human bone marrow mesenchymal stem cells (hMSCs) to undergo osteogenic differentiation. MicroRNAs have been shown to regulate this osteogenic process. This study aimed to investigate the role of miR-765 in the osteogenic differentiation of hMSCs. Methods We transfected hMSCs with lentiviral constructs to knock down or overexpress this miRNA, allowing us to assess its role in osteogenesis via assessing the expression of the relevant markers alkaline phosphatase (ALP), runt-related gene-2 (RUNX-2), and osteocalcin (OCN), with further functional measurements made via quantifying ALP activity and conducting Alizarin Red S staining. The targeting of the 3′-untranslated region (UTR) of BMP6 by miR-765 was examined via luciferase assay. We used hMSCs with altered miR-765 expression to assess p-Smad1/5/9 levels via Western blotting over the course of osteogenic differentiation. We also assessed the osteogenic differentiation of hMSCs in which miR-765 was knocked down and at the same time as a BMP/Smad signaling inhibitor was added to disrupt Smad1/5/9 phosphorylation. Results We found miR-765 overexpression to inhibit osteogenesis-associated gene upregulation during osteogenic differentiation of hMSCs, whereas knockdown of this miRNA was associated with increased expression of these genes. Using luciferase reporter assays, we confirmed direct miR-765 binding to the 3′-untranslated region (UTR) of BMP6. We also found that miR-765 overexpression reduced Smad1/5/9 phosphorylation, and knockdown of this miRNA enhanced this phosphorylation on BMP6/Smad1/5/9 signaling. The osteogenic differentiation of hMSCs in which miR-765 had been knocked down was further weakened upon the addition of a BMP/Smad signaling inhibitor relative to miR-765 knockdown alone. Conclusions Together, these results thus suggest that miR-765 is able to inhibit hMSC osteogenic differentiation by targeting BMP6 via regulation of the BMP6/Smad1/5/9 signaling pathway. Our findings may offer molecular insights of value for the development of novel therapeutic treatments for bone diseases including osteoporosis.
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Affiliation(s)
- Tao Wang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China.
| | - Chao Zhang
- Breast surgery, Affiliated Hospital of Jiujiang University, Jiujiang, 332000, China
| | - Cihu Wu
- Medical department, Jiujiang University, Jiujiang, 332000, China
| | - Jianyun Liu
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Hui Yu
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Xiaoou Zhou
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Jie Zhang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Xinping Wang
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Shan He
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Xiaoyuan Xu
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China
| | - Baicheng Ma
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China.
| | - Xiangxin Che
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China.
| | - Weidong Li
- Key Laboratory of System Bio-medicine of Jiangxi Province, Jiujiang University, Jiujiang, 332000, China.
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The wonders of BMP9: From mesenchymal stem cell differentiation, angiogenesis, neurogenesis, tumorigenesis, and metabolism to regenerative medicine. Genes Dis 2019; 6:201-223. [PMID: 32042861 PMCID: PMC6997590 DOI: 10.1016/j.gendis.2019.07.003] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/07/2019] [Accepted: 07/10/2019] [Indexed: 12/15/2022] Open
Abstract
Although bone morphogenetic proteins (BMPs) initially showed effective induction of ectopic bone growth in muscle, it has since been determined that these proteins, as members of the TGF-β superfamily, play a diverse and critical array of biological roles. These roles include regulating skeletal and bone formation, angiogenesis, and development and homeostasis of multiple organ systems. Disruptions of the members of the TGF-β/BMP superfamily result in severe skeletal and extra-skeletal irregularities, suggesting high therapeutic potential from understanding this family of BMP proteins. Although it was once one of the least characterized BMPs, BMP9 has revealed itself to have the highest osteogenic potential across numerous experiments both in vitro and in vivo, with recent studies suggesting that the exceptional potency of BMP9 may result from unique signaling pathways that differentiate it from other BMPs. The effectiveness of BMP9 in inducing bone formation was recently revealed in promising experiments that demonstrated efficacy in the repair of critical sized cranial defects as well as compatibility with bone-inducing bio-implants, revealing the great translational promise of BMP9. Furthermore, emerging evidence indicates that, besides its osteogenic activity, BMP9 exerts a broad range of biological functions, including stem cell differentiation, angiogenesis, neurogenesis, tumorigenesis, and metabolism. This review aims to summarize our current understanding of BMP9 across biology and the body.
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Deng L, Hu G, Jin L, Wang C, Niu H. Involvement of microRNA-23b in TNF-α-reduced BMSC osteogenic differentiation via targeting runx2. J Bone Miner Metab 2018; 36:648-660. [PMID: 29234953 DOI: 10.1007/s00774-017-0886-8] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 11/15/2017] [Indexed: 01/08/2023]
Abstract
Elucidation of the molecular mechanism governing bone marrow mesenchymal stem cell (BMSC) osteogenic differentiation is of great importance for improving the treatment of osteoporosis. TNF-α is a well-known inhibitory factor during osteogenic differentiation of BMSCs. In our experiment, we consistently observed that TNF-α significantly inhibited BMSC osteogenic differentiation, which was partially rescued by BAY 11-7082 (NF-κB inhibitor). In this study, we examined the potential roles of microRNAs (miRNAs) involved in TNF-α-mediated reduction of BMSC osteogenesis. We found that microRNA-23b (miR-23b) was dramatically induced under the stimulation of TNF-α, which was abolished by BAY 11-7082. Similar to the effect of TNF-α, miR-23b agonist (agomir-23b) obviously impaired BMSC osteogenic differentiation in vitro and in vivo. However, agomir-23b had no effect on osteoclast activity. Overexpression of miR-23b significantly reduced runx2, the master transcription factor during osteogenesis, suggesting that miR-23b acts as an endogenous attenuator of runx2 in BMSCs. Mutation of the putative miR-23b binding site in runx2 mRNA blocked miR-23b-mediated repression of the runx2 3' untranslated region (3'UTR) luciferase reporter activity, suggesting that miR-23b directly binds to runx2 3'UTR. Furthermore, infection with Ad-runx2 (adenovirus carrying the entire CDS sequence of runx2) effectively rescued the inhibition of BMSC osteogenic differentiation in miR-23b-overexpressing cells, indicating that the inhibiting effect of miR-23b on osteogenesis is mediated by suppression of runx2. Moreover, caudal vein injection of agomir-23b notably caused severe osteoporosis in mice, and forced expression of runx2 by combined injecting Ad-runx2 attenuated the bone loss induced by miR-23b. Collectively, these data indicated that miR-23b was involved in TNF-α-mediated reduction of BMSC osteogenesis by targeting runx2. These findings may provide new insights into understanding the regulatory role of miR-23b in the process of BMSC osteogenic differentiation in inflammatory conditions and a novel therapeutic target for osteoporosis.
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Affiliation(s)
- Lin Deng
- Department of Traumatology, Shu Guang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Guoli Hu
- Key Laboratory of Stem Cell Biology, Institute of Health Sciences, Shanghai Jiao Tong University School of Medicine (SJTUSM) and Shanghai Institutes for Biological Sciences (SIBS), Chinese Academy of Sciences, Shanghai, China
| | - Lei Jin
- Anorectal Surgery, Shanghai Min Hang Traditional Chinese Medicine Hospital, Shanghai, China
| | - Chenglong Wang
- Department of Orthopedic Surgery, Xin Hua Hospital Affiliated to Shanghai Jiao Tong University School of Medicine (SJTUSM), Shanghai, China
| | - Hongwen Niu
- Department of Traumatology, Shu Guang Hospital Affiliated to Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Gong ZM, Tang ZY, Sun XL. LncRNA PRNCR1 regulates CXCR4 expression to affect osteogenic differentiation and contribute to osteolysis after hip replacement. Gene 2018; 673:251-261. [DOI: 10.1016/j.gene.2018.05.043] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 05/13/2018] [Indexed: 01/05/2023]
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Liu H, Zhong L, Yuan T, Chen S, Zhou Y, An L, Guo Y, Fan M, Li Y, Sun Y, Li W, Shi Q, Weng Y. MicroRNA-155 inhibits the osteogenic differentiation of mesenchymal stem cells induced by BMP9 via downregulation of BMP signaling pathway. Int J Mol Med 2018; 41:3379-3393. [PMID: 29512689 PMCID: PMC5881775 DOI: 10.3892/ijmm.2018.3526] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Accepted: 02/12/2018] [Indexed: 02/03/2023] Open
Abstract
Previous studies have indicated that bone morphogenetic protein 9 (BMP9) can promote the osteogenic differentiation of mesenchymal stem cells (MSCs) and increase bone formation in bone diseases. However, the mechanisms involved remained poorly understood. It is necessary to investigate the specific regulatory mechanisms of osteogenic differentiation that were induced by BMP9. During the process of osteogenic differentiation induced by BMP9, the expression of microRNA-155 (miR-155) exhibited a tendency of increasing at first and then decreasing, which made us consider that miR-155 may have a modulatory role in this process, but the roles of this process have not been elucidated. This study aimed to uncover miR-155 capable of concomitant regulation of this process. mmu-miR-155 mimic (miR-155) was transfected into MSCs and osteogenesis was induction by using recombinant adenovirus expressing BMP9. Overexpressed miR-155 in MSCs led to a decrease in alkaline phosphatase (ALP) staining and Alizarin red S staining during osteogenic differentiation, and reduced the expression of osteogenesis-related genes, such as runt-related transcription factor 2 (Runx2), osterix (OSX), osteocalcin (OCN) and osteopontin (OPN). On protein levels, overexpressed miR-155 markedly decreased the expression of phosphorylated Smad1/5/8 (p-Smad1/5/8), Runx2, OCN and OPN. Luciferase reporter assay revealed Runx2 and bone morphogenetic protein receptor 9 (BMPR2) are two direct target genes of miR-155. Downregulation of the expression of Runx2 and BMPR2, respectively could offset the inhibitory effect of miR-155 in the osteogenesis of MSCs. In vivo, subcutaneous ectopic osteogenesis of MSCs in nude mice showed miR-155 inhibited osteogenic differentiation. In conclusion, our results demonstrated that miR-155 can inhibit the osteogenic differentiation induced by BMP9 in MSCs.
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Affiliation(s)
- Hongxia Liu
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Liang Zhong
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Taixian Yuan
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Sicheng Chen
- Xinxiang Medical University, Xinxiang, Henan 453002, P.R. China
| | - Yiqing Zhou
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Liqin An
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yangliu Guo
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Mengtian Fan
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Ya Li
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yanting Sun
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Wang Li
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Qiong Shi
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
| | - Yaguang Weng
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
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Ji C, Liu X, Xu L, Yu T, Dong C, Luo J. RUNX1 Plays an Important Role in Mediating BMP9-Induced Osteogenic Differentiation of Mesenchymal Stem Cells Line C3H10T1/2, Murine Multi-Lineage Cells Lines C2C12 and MEFs. Int J Mol Sci 2017. [PMID: 28644396 PMCID: PMC5535841 DOI: 10.3390/ijms18071348] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
As one of the least studied bone morphogenetic proteins (BMPs), BMP9 is highly capable of promoting osteogenic differentiation. However, the underlying mechanism involved remains largely unknown. Recent studies have demonstrated that RUNX1 (runt-related transcription factor 1) is essential in osteoblast/chondrocyte maturation. In this study, we investigated the function of RUNX1 in BMP9-induced osteogenic of murine mesenchymal stem cell line (C3H10T1/2) and murine multi-lineage cell lines (C2C12 and MEFs). Our data showed that BMP9 promoted the endogenous expression of RUNX1 in C3H10T1/2, C2C12 and MEFs. Moreover, RUNX1 was probably a direct target of BMP9/Smad signaling. BMP9-induced osteogenic differentiation was enhanced by overexpression of RUNX1, whereas inhibited by knockdown RUNX1 in C3H10T1/2, C2C12 and MEFs. Further mechanism studies demonstrated that RUNX1 might affect BMP9-induced phosphorylation of Smad1/5/8, but not the phosphorylation of p38 and ERK1/2.Our results suggest that RUNX1 may be an essential modulator in BMP9- induced osteogenic differentiation of MSCs (Mesenchymal stem cells).
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Affiliation(s)
- Caixia Ji
- Department of Laboratory Medicine, M.O.E. Key Laboratory of Laboratory Medicine Diagnostics, Chongqing Medical University, Chongqing 400016,China.
| | - Xiaohua Liu
- Department of Laboratory Medicine, M.O.E. Key Laboratory of Laboratory Medicine Diagnostics, Chongqing Medical University, Chongqing 400016,China.
| | - Li Xu
- Department of Laboratory Medicine, M.O.E. Key Laboratory of Laboratory Medicine Diagnostics, Chongqing Medical University, Chongqing 400016,China.
| | - Tingting Yu
- Department of Laboratory Medicine, M.O.E. Key Laboratory of Laboratory Medicine Diagnostics, Chongqing Medical University, Chongqing 400016,China.
| | - Chaoqun Dong
- Department of Laboratory Medicine, M.O.E. Key Laboratory of Laboratory Medicine Diagnostics, Chongqing Medical University, Chongqing 400016,China.
| | - Jinyong Luo
- Department of Laboratory Medicine, M.O.E. Key Laboratory of Laboratory Medicine Diagnostics, Chongqing Medical University, Chongqing 400016,China.
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