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Mu X, Ono M, Nguyen HTT, Wang Z, Zhao K, Komori T, Yonezawa T, Kuboki T, Oohashi T. Exploring the Regulators of Keratinization: Role of BMP-2 in Oral Mucosa. Cells 2024; 13:807. [PMID: 38786031 PMCID: PMC11119837 DOI: 10.3390/cells13100807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/02/2024] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
The oral mucosa functions as a physico-chemical and immune barrier to external stimuli, and an adequate width of the keratinized mucosa around the teeth or implants is crucial to maintaining them in a healthy and stable condition. In this study, for the first time, bulk RNA-seq analysis was performed to explore the gene expression of laser microdissected epithelium and lamina propria from mice, aiming to investigate the differences between keratinized and non-keratinized oral mucosa. Based on the differentially expressed genes (DEGs) and Gene Ontology (GO) Enrichment Analysis, bone morphogenetic protein 2 (BMP-2) was identified to be a potential regulator of oral mucosal keratinization. Monoculture and epithelial-mesenchymal cell co-culture models in the air-liquid interface (ALI) indicated that BMP-2 has direct and positive effects on epithelial keratinization and proliferation. We further performed bulk RNA-seq of the ALI monoculture stimulated with BMP-2 in an attempt to identify the downstream factors promoting epithelial keratinization and proliferation. Analysis of the DEGs identified, among others, IGF2, ID1, LTBP1, LOX, SERPINE1, IL24, and MMP1 as key factors. In summary, these results revealed the involvement of a well-known growth factor responsible for bone development, BMP-2, in the mechanism of oral mucosal keratinization and proliferation, and pointed out the possible downstream genes involved in this mechanism.
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Affiliation(s)
- Xindi Mu
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
| | - Mitsuaki Ono
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
- Department of Oral Rehabilitation and Implantology, Okayama University Hospital, Okayama 700-8558, Japan;
| | - Ha Thi Thu Nguyen
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
- Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Ziyi Wang
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
| | - Kun Zhao
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
| | - Taishi Komori
- Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
- Skeletal Biology Section, National Institute of Dental and Craniofacial Research, Department of Health and Human Services, National Institutes of Health, Bethesda, MD 20892, USA
| | - Tomoko Yonezawa
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
| | - Takuo Kuboki
- Department of Oral Rehabilitation and Implantology, Okayama University Hospital, Okayama 700-8558, Japan;
- Department of Oral Rehabilitation and Regenerative Medicine, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8525, Japan;
| | - Toshitaka Oohashi
- Department of Molecular Biology and Biochemistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan; (X.M.); (H.T.T.N.); (Z.W.); (K.Z.); (T.Y.); (T.O.)
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Shi X, Fu Q, Mao J, Yang J, Chen Y, Lu J, Chen A, Lu N. Integration of single-cell and RNA-seq data to explore the role of focal adhesion-related genes in osteoporosis. J Cell Mol Med 2024; 28:e18271. [PMID: 38534087 DOI: 10.1111/jcmm.18271] [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: 07/25/2023] [Revised: 02/18/2024] [Accepted: 02/23/2024] [Indexed: 03/28/2024] Open
Abstract
Integrin-based focal adhesion is one of the major mechanosensory in osteocytes. The aim of this study was to mine the hub genes associated with focal adhesion and investigate their roles in osteoporosis based on the data of single-cell RNA sequencing and RNA-sequencing. Two hub genes (FAM129A and RNF24) with the same expression trend and AUC values greater than 0.7 in both GSE56815 and GSE56116 cohorts were uncovered. The nomogram was created to predict the risk of OP based on two hub genes. Subsequently, the competing endogenous RNA network was established based on two hub genes, 14 microRNAs and five long noncoding RNAs. Meanwhile, transcription factors-hub gene network was established based on two hub genes and 14 TFs. Finally, 73 drugs were predicted, of which there were 13 drugs targeting FAM129A and 66 drugs targeting RNF24. In both mouse and human blood samples, FAM129A expression was decreased in granulocytes and RNF24 expression was increased in monocytes. In the mouse experiment, FAM129A and anti-RNF24 were found to partially alleviate the progression of osteoporosis. In conclusion, two hub genes related to focal adhesion were identified by combined scRNA-seq and RNA-seq analyses, which might supply a new insight for the treatment and evaluation of OP.
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Affiliation(s)
- Xiaojian Shi
- Department of Orthopedic Trauma Surgery, Haimen People's Hospital, Nantong, Jiangsu, China
| | - Qiang Fu
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Jianyu Mao
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
| | - Jiajie Yang
- Department of Orthopedic Trauma Surgery, Haimen People's Hospital, Nantong, Jiangsu, China
| | - Ye Chen
- Department of Orthopedic Trauma Surgery, Haimen People's Hospital, Nantong, Jiangsu, China
| | - Jiajia Lu
- Department of Orthopedic Trauma Surgery, Haimen People's Hospital, Nantong, Jiangsu, China
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
- Department of Orthopedic Trauma Surgery, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Aimin Chen
- Department of Orthopedic Trauma Surgery, Shanghai Changzheng Hospital, Shanghai, China
- Department of Orthopedic Trauma Surgery, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - Nan Lu
- Department of Orthopedic Trauma Surgery, Shanghai Fourth People's Hospital, School of Medicine, Tongji University, Shanghai, China
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Zhang P, Feng B, Dai G, Niu K, Zhang L. FOXC1 Promotes Osteoblastic Differentiation of Bone Marrow Mesenchymal Stem Cells via the Dnmt3b/CXCL12 Axis. Biochem Genet 2024; 62:176-192. [PMID: 37306827 DOI: 10.1007/s10528-023-10403-y] [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: 11/16/2022] [Accepted: 05/12/2023] [Indexed: 06/13/2023]
Abstract
Bone defects have remained a clinical problem in current orthopedics. Bone marrow mesenchymal stem cells (BM-MSCs) with multi-directional differentiation ability have become a research hotspot for repairing bone defects. In vitro and in vivo models were constructed, respectively. Alkaline phosphatase (ALP) staining and alizarin red staining were performed to detect osteogenic differentiation ability. Western blotting (WB) was used to detect the expression of osteogenic differentiation-related proteins. Serum inflammatory cytokine levels were detected by ELISA. Fracture recovery was evaluated by HE staining. The binding relationship between FOXC1 and Dnmt3b was verified by dual-luciferase reporter assay. The relationship between Dnmt3b and CXCL12 was explored by MSP and ChIP assays. FOXC1 overexpression promoted calcium nodule formation, upregulated osteogenic differentiation-related protein expression, promoted osteogenic differentiation, and decreased inflammatory factor levels in BM-MSCs, and promoted callus formation, upregulated osteogenic differentiation-related protein expression, and downregulated CXCL12 expression in the mouse model. Furthermore, FOXC1 targeted Dnmt3b, with Dnmt3b knockdown decreasing calcium nodule formation and downregulating osteogenic differentiation-related protein expression. Additionally, inhibiting Dnmt3b expression upregulated CXCL12 protein expression and inhibited CXCL12 methylation. Dnmt3b could be binded to CXCL12. CXCL12 overexpression attenuated the effects of FOXC1 overexpression and inhibited BM-MSCs osteogenic differentiation. This study confirmed that the FOXC1-mediated regulation of the Dnmt3b/CXCL12 axis had positive effects on the osteogenic differentiation of BM-MSCs.
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Affiliation(s)
- Peiguang Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Bo Feng
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Guangming Dai
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Kecheng Niu
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China
| | - Lan Zhang
- Department of Orthopedics, The Third Affiliated Hospital, Inner Mongolia Medical University, No. 20 Shaoxian Road, Kundulun District, Baotou, 014010, Inner Mongolia, People's Republic of China.
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Wu M, Wu S, Chen W, Li YP. The roles and regulatory mechanisms of TGF-β and BMP signaling in bone and cartilage development, homeostasis and disease. Cell Res 2024; 34:101-123. [PMID: 38267638 PMCID: PMC10837209 DOI: 10.1038/s41422-023-00918-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Accepted: 12/15/2023] [Indexed: 01/26/2024] Open
Abstract
Transforming growth factor-βs (TGF-βs) and bone morphometric proteins (BMPs) belong to the TGF-β superfamily and perform essential functions during osteoblast and chondrocyte lineage commitment and differentiation, skeletal development, and homeostasis. TGF-βs and BMPs transduce signals through SMAD-dependent and -independent pathways; specifically, they recruit different receptor heterotetramers and R-Smad complexes, resulting in unique biological readouts. BMPs promote osteogenesis, osteoclastogenesis, and chondrogenesis at all differentiation stages, while TGF-βs play different roles in a stage-dependent manner. BMPs and TGF-β have opposite functions in articular cartilage homeostasis. Moreover, TGF-β has a specific role in maintaining the osteocyte network. The precise activation of BMP and TGF-β signaling requires regulatory machinery at multiple levels, including latency control in the matrix, extracellular antagonists, ubiquitination and phosphorylation in the cytoplasm, nucleus-cytoplasm transportation, and transcriptional co-regulation in the nuclei. This review weaves the background information with the latest advances in the signaling facilitated by TGF-βs and BMPs, and the advanced understanding of their diverse physiological functions and regulations. This review also summarizes the human diseases and mouse models associated with disordered TGF-β and BMP signaling. A more precise understanding of the BMP and TGF-β signaling could facilitate the development of bona fide clinical applications in treating bone and cartilage disorders.
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Affiliation(s)
- Mengrui Wu
- Department of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China.
| | - Shali Wu
- Department of Cell and Developmental Biology, College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, China
| | - Wei Chen
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA
| | - Yi-Ping Li
- Division in Cellular and Molecular Medicine, Department of Pathology and Laboratory Medicine, Tulane University School of Medicine, Tulane University, New Orleans, LA, USA.
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Schneider RF, Gunter HM, Salewski I, Woltering JM, Meyer A. Growth dynamics and molecular bases of evolutionary novel jaw extensions in halfbeaks and needlefishes (Beloniformes). Mol Ecol 2023; 32:5798-5811. [PMID: 37750351 DOI: 10.1111/mec.17143] [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: 01/23/2023] [Revised: 08/17/2023] [Accepted: 09/05/2023] [Indexed: 09/27/2023]
Abstract
Evolutionary novelties-derived traits without clear homology found in the ancestors of a lineage-may promote ecological specialization and facilitate adaptive radiations. Examples for such novelties include the wings of bats, pharyngeal jaws of cichlids and flowers of angiosperms. Belonoid fishes (flying fishes, halfbeaks and needlefishes) feature an astonishing diversity of extremely elongated jaw phenotypes with undetermined evolutionary origins. We investigate the development of elongated jaws in a halfbeak (Dermogenys pusilla) and a needlefish (Xenentodon cancila) using morphometrics, transcriptomics and in situ hybridization. We confirm that these fishes' elongated jaws are composed of distinct base and novel 'extension' portions. These extensions are morphologically unique to belonoids, and we describe the growth dynamics of both bases and extensions throughout early development in both studied species. From transcriptomic profiling, we deduce that jaw extension outgrowth is guided by populations of multipotent cells originating from the anterior tip of the dentary. These cells are shielded from differentiation, but proliferate and migrate anteriorly during the extension's allometric growth phase. Cells left behind at the tip leave the shielded zone and undergo differentiation into osteoblast-like cells, which deposit extracellular matrix with both bone and cartilage characteristics that mineralizes and thereby provides rigidity. Such bone has characteristics akin to histological observations on the elongated 'kype' process on lower jaws of male salmon, which may hint at common conserved regulatory underpinnings. Future studies will evaluate the molecular pathways that govern the anterior migration and proliferation of these multipotent cells underlying the belonoids' evolutionary novel jaw extensions.
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Affiliation(s)
- Ralf F Schneider
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
- Department of Marine Ecology, GEOMAR, Kiel, Germany
| | - Helen M Gunter
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Inken Salewski
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Joost M Woltering
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
| | - Axel Meyer
- Lehrstuhl für Zoologie und Evolutionsbiologie, Department of Biology, University of Konstanz, Konstanz, Germany
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Almubarak A, Lavy R, Srnic N, Hu Y, Maripuri DP, Kume T, Berry FB. Loss of Foxc1 and Foxc2 function in chondroprogenitor cells disrupts endochondral ossification. J Biol Chem 2021; 297:101020. [PMID: 34331943 PMCID: PMC8383119 DOI: 10.1016/j.jbc.2021.101020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 07/12/2021] [Accepted: 07/27/2021] [Indexed: 11/23/2022] Open
Abstract
Endochondral ossification initiates the growth of the majority of the mammalian skeleton and is tightly controlled through gene regulatory networks. The forkhead box transcription factors Foxc1 and Foxc2 regulate aspects of osteoblast function in the formation of the skeleton, but their roles in chondrocytes to control endochondral ossification are less clear. Here, we demonstrate that Foxc1 expression is directly regulated by the activity of SRY (sex-determining region Y)-box 9, one of the earliest transcription factors to specify the chondrocyte lineage. Moreover, we demonstrate that elevated expression of Foxc1 promotes chondrocyte differentiation in mouse embryonic stem cells and loss of Foxc1 function inhibits chondrogenesis in vitro. Using chondrocyte-targeted deletion of Foxc1 and Foxc2 in mice, we reveal a role for these factors in chondrocyte differentiation in vivo. Loss of both Foxc1 and Foxc2 caused a general skeletal dysplasia predominantly affecting the vertebral column. The long bones of the limbs were smaller, mineralization was reduced, and organization of the growth plate was disrupted; in particular, the stacked columnar organization of the proliferative chondrocyte layer was reduced in size and cell proliferation was decreased. Differential gene expression analysis indicated disrupted expression patterns of chondrogenesis and ossification genes throughout the entire process of endochondral ossification in chondrocyte-specific Foxc1/Foxc2 KO embryos. Our results suggest that Foxc1 and Foxc2 are required for normal chondrocyte differentiation and function, as loss of both genes results in disorganization of the growth plate, reduced chondrocyte proliferation, and delays in chondrocyte hypertrophy that prevents ossification of the skeleton.
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Affiliation(s)
- Asra Almubarak
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | - Rotem Lavy
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Nikola Srnic
- Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Yawen Hu
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada
| | | | - Tsutomo Kume
- Feinberg Cardiovascular and Renal Research Institute, Feinberg School of Medicine, Department of Medicine, Northwestern University, Chicago, IL, USA
| | - Fred B Berry
- Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada; Department of Surgery, University of Alberta, Edmonton, Alberta, Canada.
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Yang D, Yang X, Dai F, Wang Y, Yang Y, Hu M, Cheng Y. The Role of Bone Morphogenetic Protein 4 in Ovarian Function and Diseases. Reprod Sci 2021; 28:3316-3330. [PMID: 33966186 DOI: 10.1007/s43032-021-00600-8] [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: 11/26/2020] [Accepted: 04/22/2021] [Indexed: 12/19/2022]
Abstract
Bone morphogenetic proteins (BMPs) are the largest subfamily of the transforming growth factor-β (TGF-β) superfamily. BMP4 is a secreted protein that was originally identified due to its role in bone and cartilage development. Over the past decades, extensive literature has indicated that BMP4 and its receptors are widely expressed in the ovary. Dysregulation of BMP4 expression may play a vital role in follicular development, polycystic ovary syndrome (PCOS), and ovarian cancer. In this review, we summarized the expression pattern of BMP4 in the ovary, focused on the role of BMP4 in follicular development and steroidogenesis, and discussed the role of BMP4 in ovarian diseases such as polycystic ovary syndrome and ovarian cancer. Some studies have shown that the expression of BMP4 in the ovary is spatiotemporal and species specific, but the effects of BMP4 seem to be similar in follicular development of different species. In addition, BMP4 is involved in the development of hyperandrogenemia in PCOS and drug resistance in ovarian cancer, but further research is still needed to clarify the specific mechanisms.
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Affiliation(s)
- Dongyong Yang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Xiao Yang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing, 100044, China
| | - Fangfang Dai
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yanqing Wang
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China
| | - Yi Yang
- School of Physics & Technology, Key Laboratory of Artificial Micro/Nano Structure of Ministry of Education, Wuhan University, Wuhan, 430072, China.
| | - Min Hu
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
| | - Yanxiang Cheng
- Department of Obstetrics and Gynecology, Renmin Hospital of Wuhan University, Wuhan, 430060, China.
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Zhou Y, Liu S, Wang W, Sun Q, Lv M, Yang S, Tong S, Guo S. The miR-204-5p/FOXC1/GDF7 axis regulates the osteogenic differentiation of human adipose-derived stem cells via the AKT and p38 signalling pathways. Stem Cell Res Ther 2021; 12:64. [PMID: 33461605 PMCID: PMC7814734 DOI: 10.1186/s13287-020-02117-4] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Human adipose-derived stem cells (hADSCs) are stem cells with the potential to differentiate in multiple directions. miR-204-5p is expressed at low levels during the osteogenic differentiation of hADSCs, and its specific regulatory mechanism remains unclear. Here, we aimed to explore the function and possible molecular mechanism of miR-204-5p in the osteogenic differentiation of hADSCs. METHODS The expression patterns of miR-204-5p, Runx2, alkaline phosphatase (ALP), osteocalcin (OCN), forkhead box C1 (FOXC1) and growth differentiation factor 7 (GDF7) in hADSCs during osteogenesis were detected by qRT-PCR. Then, ALP and alizarin red staining (ARS) were used to detect osteoblast activities and mineral deposition. Western blotting was conducted to confirm the protein levels. The regulatory relationship among miR-204-5p, FOXC1 and GDF7 was verified by dual-luciferase activity and chromatin immunoprecipitation (ChIP) assays. RESULTS miR-204-5p expression was downregulated in hADSC osteogenesis, and overexpression of miR-204-5p suppressed osteogenic differentiation. Furthermore, the levels of FOXC1 and GDF7 were decreased in the miR-204-5p mimics group, which indicates that miR-204-5p overexpression suppresses the expression of FOXC1 and GDF7 by binding to their 3'-untranslated regions (UTRs). Overexpression of FOXC1 or GDF7 improved the inhibition of osteogenic differentiation of hADSCs induced by the miR-204-5p mimics. Moreover, FOXC1 was found to bind to the promoter of miR-204-5p and GDF7, promote the deacetylation of miR-204-5p and reduce the expression of miR-204-5p, thus promoting the expression of GDF7 during osteogenic differentiation. GDF7 induced hADSC osteogenesis differentiation by activating the AKT and P38 signalling pathways. CONCLUSIONS Our results demonstrated that the miR-204-5p/FOXC1/GDF7 axis regulates the osteogenic differentiation of hADSCs via the AKT and p38 signalling pathways. This study further revealed the regulatory mechanism of hADSC differentiation from the perspective of miRNA regulation.
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Affiliation(s)
- You Zhou
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Siyu Liu
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Wei Wang
- Institute of Respiratory Disease, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Qiang Sun
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Mengzhu Lv
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Shude Yang
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Shuang Tong
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China
| | - Shu Guo
- Department of Plastic Surgery, The First Hospital of China Medical University, NO 155 Nanjing street Heping Strict, Shenyang, 110001, Liaoning Province, China.
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