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Brito VGB, Bell-Hensley A, McAlinden A. MicroRNA-138: an emerging regulator of skeletal development, homeostasis, and disease. Am J Physiol Cell Physiol 2023; 325:C1387-C1400. [PMID: 37842749 PMCID: PMC10861148 DOI: 10.1152/ajpcell.00382.2023] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/10/2023] [Accepted: 10/10/2023] [Indexed: 10/17/2023]
Abstract
Noncoding microRNAs are powerful epigenetic regulators of cellular processes by their ability to target and suppress expression of numerous protein-coding mRNAs. This multitargeting function is a unique and complex feature of microRNAs. It is now well-described that microRNAs play important roles in regulating the development and homeostasis of many cell/tissue types, including those that make up the skeletal system. In this review, we focus on microRNA-138 (miR-138) and its effects on regulating bone and cartilage cell differentiation and function. In addition to its reported role as a tumor suppressor, miR-138 appears to function as an inhibitor of osteoblast differentiation. This review provides additional information on studies that have attempted to alter miR-138 expression in vivo as a means to dampen ectopic calcification or alter bone mass. However, a review of the published literature on miR-138 in cartilage reveals a number of contradictory and inconclusive findings with respect to regulating chondrogenesis and chondrocyte catabolism. This highlights the need for more research in understanding the role of miR-138 in cartilage biology and disease. Interestingly, a number of studies in other systems have reported miR-138-mediated effects in dampening inflammation and pain responses. Future studies will reveal if a multifunctional role of miR-138 involving suppression of ectopic bone, inflammation, and pain will be beneficial in skeletal conditions such as osteoarthritis and heterotopic ossification.
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Affiliation(s)
- Victor Gustavo Balera Brito
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Austin Bell-Hensley
- Department of Biomedical Engineering, Washington University School of Medicine, St. Louis, Missouri, United States
| | - Audrey McAlinden
- Department of Orthopaedic Surgery, Washington University School of Medicine, St. Louis, Missouri, United States
- Department of Cell Biology & Physiology, Washington University School of Medicine, St. Louis, Missouri, United States
- Shriners Hospital for Children, St. Louis, Missouri, United States
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2
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Huang W, Wu X, Xiang S, Qiao M, Li H, Zhu Y, Zhu Z, Zhao Z. Regulatory of miRNAs in tri-lineage differentiation of C3H10T1/2. Stem Cell Res Ther 2022; 13:521. [PMID: 36414991 PMCID: PMC9682817 DOI: 10.1186/s13287-022-03205-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Accepted: 10/28/2022] [Indexed: 11/24/2022] Open
Abstract
MicroRNAs (miRNAs) are non-coding single-stranded RNA molecules encoded by endogenous genes, which play a vital role in cell generation, metabolism, apoptosis and stem cell differentiation. C3H10T1/2, a mesenchymal cell extracted from mouse embryos, is capable of osteogenic differentiation, adipogenic differentiation and chondrogenic differentiation. Extensive studies have shown that not only miRNAs can directly trigger targeted genes to regulate the tri-lineage differentiation of C3H10T1/2, but it also can indirectly regulate the differentiation by triggering different signaling pathways or various downstream molecules. This paper aims to clarify the regulatory roles of different miRNAs on C3H10T1/2 differentiation, and discussing their balance effect among osteogenic differentiation, adipogenic differentiation and chondrogenic differentiation of C3H10T1/2. We also review the biogenesis of miRNAs, Wnt signaling pathways, MAPK signaling pathways and BMP signaling pathways and provide some specific examples of how these signaling pathways act on C3H10T1/2 tri-lineage differentiation. On this basis, we hope that a deeper understanding of the differentiation and regulation mechanism of miRNAs in C3H10T1/2 can provide a promising therapeutic method for the clinical treatment of bone defects, osteoporosis, osteoarthritis and other diseases.
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Affiliation(s)
- Wei Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Xiaoyue Wu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Shuaixi Xiang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Mingxin Qiao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Hanfei Li
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Yujie Zhu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China
| | - Zhou Zhu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China.
| | - Zhihe Zhao
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, People's Republic of China.
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3
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Yin J, Xiao W, Zhao Q, Sun J, Zhou W, Zhao W. MicroRNA-582-3p regulates osteoporosis through regulating homeobox A10 and osteoblast differentiation. Immunopharmacol Immunotoxicol 2022; 44:421-428. [PMID: 35285389 DOI: 10.1080/08923973.2022.2052895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jian Yin
- Department of Orthopedic, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, Xinjiang, 830001, PR. China
| | - Wei Xiao
- Department of Orthopedic, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, Xinjiang, 830001, PR. China
| | - Qingbin Zhao
- Department of Orthopedic, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, Xinjiang, 830001, PR. China
| | - Jungang Sun
- Department of Orthopedic, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, Xinjiang, 830001, PR. China
| | - Wenzheng Zhou
- Department of Orthopedic, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, Xinjiang, 830001, PR. China
| | - Wei Zhao
- Department of Orthopedic, Xinjiang Uygur Autonomous Region People's Hospital, Urumqi, Xinjiang, 830001, PR. China
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4
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Yan F, Huo Q, Zhang W, Wu T, Dilimulati D, Shi L. MiR-138-5p targets RUNX2 to inhibit osteogenic differentiation of aortic valve interstitial cells via Wnt/β-catenin signaling pathway. BMC Cardiovasc Disord 2022; 22:24. [PMID: 35109802 PMCID: PMC8811996 DOI: 10.1186/s12872-022-02471-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 01/21/2022] [Indexed: 11/18/2022] Open
Abstract
Background Human aortic valve interstitial cells (hAVICs) are a key factor in the pathogenesis of calcific aortic valve disease (CAVD). This research examines the role and mechanism of microRNA miR-138-5p in osteogenic differentiation of hAVICs. Methods RT-qPCR analysis was applied for detecting miR-138-5p and RUNX2 expression in valve tissues of CAVD patients and controls. On completion of induction of osteogenic differentiation of hAVICs, and after overexpression or interference of miR-138-5p expression, the condition of osteogenic differentiation and calcification of hAVICs was confirmed using alkaline phosphatase staining and alizarin red staining. Subsequently, western blot was utilized to detect the expression of osteogenesis-related proteins OPN and ALP, and Wnt/β-catenin signaling pathway-related proteins. Finally, the relationship between miR-138-5p and RUNX2 was validated by dual-luciferase reporter assay and Pearson’s correlation test. Results Down-regulation of miR-138-5p was found in CAVD patients and during osteogenic differentiation of hAVICs. Overexpression of miR-138-5p contribute to the inhibition of osteoblast differentiation and calcium deposition in hAVICs, and of ALP and OPN protein expression. RUNX2 was a target gene of miR-138-5p, and it was negatively correlated with miR-138-5p in CAVD. Additionally, overexpression of RUNX2 could reverse the inhibitory effect of miR-138-5p on osteogenic differentiation of hAVICs. Conclusion miR-138-5p can act as a positive regulator of osteogenic differentiation in CAVD patients to involve in inhibiting valve calcification, which is achieved through RUNX2 and Wnt/β-catenin signaling pathway. Supplementary Information The online version contains supplementary material available at 10.1186/s12872-022-02471-6.
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Affiliation(s)
- Fei Yan
- Department of Cardiac Surgery, The First Affiliated Hospital of Xinjiang Medical University, 137 Liyushan South Road, Xinshi District, Urumqi, 830054, Xinjiang, China.
| | - Qiang Huo
- Department of Cardiac Surgery, The First Affiliated Hospital of Xinjiang Medical University, 137 Liyushan South Road, Xinshi District, Urumqi, 830054, Xinjiang, China
| | - Weimin Zhang
- Department of Cardiac Surgery, The First Affiliated Hospital of Xinjiang Medical University, 137 Liyushan South Road, Xinshi District, Urumqi, 830054, Xinjiang, China
| | - Tingting Wu
- Department of Cardiology, The First Affiliated Hospital of Xinjiang Medical University, 137 Liyushan South Road, Xinshi District, Urumqi, 830054, Xinjiang, China
| | - Daniyaer Dilimulati
- Department of Cardiac Surgery, The First Affiliated Hospital of Xinjiang Medical University, 137 Liyushan South Road, Xinshi District, Urumqi, 830054, Xinjiang, China
| | - Lin Shi
- Department of Cardiac Surgery, The First Affiliated Hospital of Xinjiang Medical University, 137 Liyushan South Road, Xinshi District, Urumqi, 830054, Xinjiang, China
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5
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Enhanced osteogenic effect in reduced BMP-2 doses with siNoggin transfected pre-osteoblasts in 3D silk scaffolds. Int J Pharm 2022; 612:121352. [PMID: 34883207 DOI: 10.1016/j.ijpharm.2021.121352] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/27/2021] [Accepted: 12/02/2021] [Indexed: 01/02/2023]
Abstract
Bone morphogenetic proteins (BMPs), especially BMP-2, are being increasingly used in bone tissue engineering due to its osteo-inductive effects. Although recombinant human BMP-2 (rhBMP-2) was approved by Food and Drug Administration (FDA) to use for bone repair, its high doses cause undesired side effects. In order to reduce the BMP-2 dose for enhanced osteogenic differentiation, in this study we decided to suppress the synthesis of Noggin protein, the primary antagonist of BMP-2, on the MC3T3-E1 cells using Noggin targeted small interfering RNA (siRNA). Unlike other studies, Noggin siRNA (siNoggin) transfected cells were seeded on silk scaffolds, and osteogenic differentiation was investigated for a long-term period (21 days) with MTT, qPCR, SEM/EDS, and histological analysis. Besides, siNoggin transfected MC3T3-E1 cells were evaluated as a new cell source for tissue engineering studies. It was determined that Nog gene expression was suppressed in the siNoggin group and Ocn gene expression increased 5-fold compared to the control group (*p < 0.05). The osteogenic effect of BMP-2 was clearly observed in siNoggin transfected cells. According to the SEM/EDS analysis, the siNoggin group has mineral structures clustered on cells, which contain intense Ca and P elements. Histological staining showed that the siNoggin group has a more intense mineralized area than that of the control group. In conclusion, this study indicated that Noggin silencing by siRNA induces osteogenic differentiation in reduced BMP-2 doses for scaffold-based bone regeneration. This non-gene integration strategy has as a safe therapeutic potential to enhance tissue regeneration.
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6
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Cheng RJ, Xiong AJ, Li YH, Pan SY, Zhang QP, Zhao Y, Liu Y, Marion TN. Mesenchymal Stem Cells: Allogeneic MSC May Be Immunosuppressive but Autologous MSC Are Dysfunctional in Lupus Patients. Front Cell Dev Biol 2019; 7:285. [PMID: 31799252 PMCID: PMC6874144 DOI: 10.3389/fcell.2019.00285] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 11/04/2019] [Indexed: 02/05/2023] Open
Abstract
Mesenchymal stem cells (MSCs) have a potently immunosuppressive capacity in both innate and adaptive immune responses. Consequently, MSCs transplantation has emerged as a potential beneficial therapy for autoimmune diseases even though the mechanisms underlying the immunomodulatory activity of MSCs is incompletely understood. Transplanted MSCs from healthy individuals with no known history of autoimmune disease are immunosuppressive in systemic lupus erythematosus (SLE) patients and can ameliorate SLE disease symptoms in those same patients. In contrast, autologous MSCs from SLE patients are not immunosuppressive and do not ameliorate disease symptoms. Recent studies have shown that MSCs from SLE patients are dysfunctional in both proliferation and immunoregulation and phenotypically senescent. The senescent phenotype has been attributed to multiple genes and signaling pathways. In this review, we focus on the possible mechanisms for the defective phenotype and function of MSCs from SLE patients and summarize recent research on MSCs in autoimmune diseases.
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Affiliation(s)
- Rui-Juan Cheng
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - An-Ji Xiong
- Department of Rheumatology and Immunology, Nanchong Central Hospital, The Second Clinical Medical College, North Sichuan Medical College, Nanchong, China
| | - Yan-Hong Li
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Shu-Yue Pan
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Qiu-Ping Zhang
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Zhao
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China
| | - Tony N Marion
- Department of Rheumatology and Immunology, West China Hospital, Sichuan University, Chengdu, China.,Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, United States
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7
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Wazir U, Orakzai MMAW, Martin TA, Jiang WG, Mokbel K. Correlation of TERT and Stem Cell Markers in the Context of Human Breast Cancer. Cancer Genomics Proteomics 2019; 16:121-127. [PMID: 30850363 DOI: 10.21873/cgp.20117] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/24/2019] [Accepted: 02/26/2019] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Telomerase reverse transcriptase (TERT) has a well-known role in carcinogenesis due to its functions in inducing cell immortality and preventing senescence. In this study, the relationships between TERT and a panel of known stem cell markers was examined in order to direct future enquiries into the role of 'stem-ness' in human breast cancer. MATERIALS AND METHODS Breast cancer tissues (n=124) and adjacent normal tissues (n=30) underwent reverse transcription and quantitative polymerase chain reaction. Transcript levels were analyzed for the correlation with that of TERT. RESULTS A significant direct correlation was found in cancerous tissue between TERT and BMI1 proto-oncogene polycomb ring finger 4 (BMI1; n=88, p<0.001), nestin (NES; n=88, p<0.001), POU domain, class 5, transcription factor 1 (POU5F1; n=88, p<0.001), aldehyde dehydrogenase 1 family member A2 (ALDH1A2; n=87, p=0.0298), cyclin-dependent kinase inhibitor 1A (CDKN1A; n=88, p<0.001), integrin subunit beta 1 (ITGNB1; n=88, p<0.001), integrin subunit alpha 6 (ITGA6; n=88, p<0.001), cluster of differentiation antigen 24 (CD24; n=88, p=0.0114), MET proto-oncogene (MET; n=78, p<0.001) and noggin (NOG; n=88, p<0.001). CONCLUSION The evidence presented in this article of possible interactions between TERT and a discrete subset of known stem cell markers would significantly contribute to further enquiries regarding clonal dynamics in the context of human breast cancer.
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Affiliation(s)
- Umar Wazir
- The London Breast Institute, Princess Grace Hospital, London, U.K.,Department of General Surgery, Khyber Teaching Hospital, Peshawar, Pakistan
| | | | - Tracey Amanda Martin
- Cardiff-China Cancer Research Collaboration, Cardiff University School of Medicine, Cardiff University, Cardiff, U.K
| | - Wen G Jiang
- Cardiff-China Cancer Research Collaboration, Cardiff University School of Medicine, Cardiff University, Cardiff, U.K
| | - Kefah Mokbel
- The London Breast Institute, Princess Grace Hospital, London, U.K. .,Department of General Surgery, Khyber Teaching Hospital, Peshawar, Pakistan
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8
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Li D, Yu K, Xiao T, Dai Y, Liu L, Li H, Jiang D, Xiong L. LOC103691336/miR-138-5p/BMPR2 axis modulates Mg-mediated osteogenic differentiation in rat femoral fracture model and rat primary bone marrow stromal cells. J Cell Physiol 2019; 234:21316-21330. [PMID: 31081160 DOI: 10.1002/jcp.28736] [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: 01/24/2019] [Revised: 03/27/2019] [Accepted: 04/10/2019] [Indexed: 12/26/2022]
Abstract
Intramedullary stabilization is frequently used to treat long bone fractures. Since implant removal can become technically very challenging with the potential to cause further tissue damage, biodegradable materials are emerging as alternative options. Magnesium (Mg)-based biodegradable implants have a controllable degradation rate and good tissue compatibility, which makes them attractive for musculoskeletal research. Herein, the degradation of Mg and steel implants, the pathological characteristics and osteoblast differentiation in mice femora were examined. To investigate the molecular mechanism, we analyzed the differentially expressed long noncoding RNAs (lncRNAs) and messenger RNAs (mRNAs) in Mg-implanted or stain-steel-implanted callus tissues. lncRNA LOC103691336 was upregulated in Mg-implanted tissues and most relevant to BMPR2, a kinase receptor of BMPs with an established role in osteogenesis. The knockdown of LOC103691336 attenuated Mg-mediated osteogenic differentiation. Furthermore, miR-138-5p, previously reported to inhibit osteogenic differentiation, could bind to LOC103691336 and BMPR2 in bone marrow stromal cells (BMSCs). LOC103691336 competed with BMPR2 for miR-138-5p binding in BMSCs to attenuate the inhibitory effect of miR-138-5p on BMPR2 expression. Finally, the effect of LOC103691336 knockdown on Mg-mediated osteogenic differentiation could be attenuated by miR-138-5p inhibition. In conclusion, we provided a novel mechanism of Mg implants mediating the osteogenesis differentiation and demonstrated that Mg implants may be promising for improving fracture healing.
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Affiliation(s)
- Ding Li
- School of Materials Science and Engineering, Central South University, Changsha, China.,Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Kun Yu
- School of Materials Science and Engineering, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Tao Xiao
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Yilong Dai
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Lihong Liu
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Hui Li
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China.,Orthopedic Biomedical Materials Engineering Laboratory of Hunan Province, Changsha, China
| | - Dayue Jiang
- School of Materials Science and Engineering, Central South University, Changsha, China
| | - Liang Xiong
- Department of Orthopedics, The Second Xiangya Hospital, Central South University, Changsha, China
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9
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Lu P, Yin B, Liu L. MicroRNA-138 Suppresses Osteoblastic Differentiation of Valvular Interstitial Cells in Degenerative Calcific Aortic Valve Disease. Int Heart J 2018; 60:136-144. [PMID: 30464116 DOI: 10.1536/ihj.18-086] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The aim of this study was to explore the function of miR-138 in the pathogenesis of degenerative calcific aortic valve disease (DCAVD).Aortic valve calcification tissue and normal tissue from DCAVD patients were collected to detect the expression of miR-138 by qRT-PCR, and immunohistochemical staining was performed to identify the phenotype of valve interstitial cells. QRT-PCR was performed to analyze the expression of miR-138, Runx2, MSX2, and ALP at day 7 after osteogenic differentiation. Alkaline phosphatase activity assay was performed at day 14 after osteogenic differentiation. Alizarin red staining was used to analyze the calcium nodule formation. TargetScan was used to predict potential targets of miR-138. QRT-PCR and Western blotting were performed to analyze the expression of FOXC1 in valve interstitial cells (VICs). The aortic valve calcification was evaluated by quantitative analysis of the velocity in the aortic annulus and transvalvular pressure gradients.In this study, we demonstrated the role of miR-138 in VIC osteogenesis. QRT-PCR results revealed miR-138 was significantly down-regulated in calcified aortic valves compared with non-calcified valves. MiR-138 overexpression inhibited VIC osteogenic differentiation in vitro, while down-regulation of miR-138 enhanced the process. Target prediction analysis and dual-luciferase reporter assay confirmed FOXC1 was a direct target of miR-138. Further research found FOXC1 overexpression promoted VIC osteogenic differentiation. In addition, animal experiments validated indirectly miR-138 could suppress aortic valve calcification.Our findings suggest miR-138 could function as a new inhibitor of VIC osteogenic differentiation, which may act by targeting FOXC1.
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Affiliation(s)
- Ping Lu
- Department of Cardiac Surgery, Qianfoshan Hospital, Shandong University
| | - Beibei Yin
- Department of Oncology, Qianfoshan Hospital, Shandong University
| | - Luqi Liu
- Department of Cardiac Surgery, Qianfoshan Hospital, Shandong University
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10
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Yu X, Liu S, Chen H, Zhao X, Chen X, Du Y, Li S. CGRP gene-modified rBMSCs show better osteogenic differentiation capacity in vitro. J Mol Histol 2018; 49:357-367. [PMID: 29846865 DOI: 10.1007/s10735-018-9775-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 05/10/2018] [Indexed: 12/14/2022]
Abstract
Calcitonin gene-related peptide (CGRP) is a marked and important neuropeptide expressed in nerve fibers during bone repair. This study investigated the role of CGRP overexpression on osteogenic differentiation of rat bone mesenchymal stem cells (rBMSCs). rBMSCs were infected with viral stocks of pLenO-DCE-CGRP (CGRP group) or pLenO-DCE (Vector group), while normal rBMSCs were used as a control. Transfection efficiency of rBMSCs was analyzed by flow cytometry. Cell proliferation was examined using a Cell Counting Kit-8 and flow cytometry. Expressions of alkaline phosphatase(ALP), bone sialoprotein (BSP) and Runt-related transcription factor 2(Runx2) in rBMSCs were detected at 1 and 2 weeks after mineral induction by real-time PCR and western blotting. Alizarin Red staining was applied at 28 days. The ratio of osteoprotegerin (OPG) to receptor activator of nuclear factor kappa B ligand (RANKL) was also detected to determine the underlying mechanism. pLenO-DCE-CGRP-induced rBMSCs stably overexpressing CGRP were successfully established. Overexpression of the CGRP gene significantly promoted rBMSC proliferation (p < 0.05). In addition, expressions of osteogenesis-related indexes were upregulated in the CGRP group (p < 0.05) compared with vector and control groups, and more mineralization nodules were observed in the CGRP group (p < 0.05). CGRP gene increased OPG and reduced RANKL in rBMSCs. Hence, the OPG/ RANKL ratio was increased in the CGRP group compared with the other two groups. CGRP gene-modified rBMSCs show better osteogenic differentiation capacity compared with rBMSCs in vitro.
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Affiliation(s)
- Xijiao Yu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School and Hospital of Stomatology, Shandong University, 44-1 West Wenhua Road, Jinan, 250012, Shandong, People's Republic of China.,Department of Endodontics, Jinan Stomatological Hospital, Jinan, Shandong, People's Republic of China
| | - Shuang Liu
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School and Hospital of Stomatology, Shandong University, 44-1 West Wenhua Road, Jinan, 250012, Shandong, People's Republic of China
| | - Hui Chen
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, Shandong, People's Republic of China
| | - Xinyu Zhao
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School and Hospital of Stomatology, Shandong University, 44-1 West Wenhua Road, Jinan, 250012, Shandong, People's Republic of China
| | - Xue Chen
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School and Hospital of Stomatology, Shandong University, 44-1 West Wenhua Road, Jinan, 250012, Shandong, People's Republic of China
| | - Yi Du
- Department of Endodontics, Jinan Stomatological Hospital, Jinan, Shandong, People's Republic of China
| | - Shu Li
- Shandong Provincial Key Laboratory of Oral Tissue Regeneration, Department of Periodontology, School and Hospital of Stomatology, Shandong University, 44-1 West Wenhua Road, Jinan, 250012, Shandong, People's Republic of China.
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11
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Semaphorin 3A promotes osteogenic differentiation of BMSC from type 2 diabetes mellitus rats. J Mol Histol 2018; 49:369-376. [PMID: 29774455 DOI: 10.1007/s10735-018-9776-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Accepted: 05/10/2018] [Indexed: 02/05/2023]
Abstract
Bone regeneration is impaired in patients with type 2 diabetes mellitus (T2DM), which leads to non-healing after bone loss. The decreased osteogenic capacity of bone mesenchymal stem cells (BMSCs) might be a main reason. Sema3A, as a powerful protein promoting osteocyte differentiation, shows potential for bone regeneration treatment. BMSCs may be a therapeutic solution. In this study, we divided BMSCs from T2DM rats (BMSCs-D) and normal rats (BMSCs-N), identified their ability to differentiate into different cell types. Then we found decreased expression of Sema3A in BMSCs-D compared with BMSCs-N. Stimulating with Sema3A showed no influence in the proliferation or migration of BMSCs. However, Sema3A stimulation significantly increased the expression of osteogenic‑related genes, including type I collagen, alkaline phosphatase, Runt-related transcription factor 2 (RUNX2), bone morphogenetic protein and osteocalcin. Besides, the osteogenic capacity of BMSCs was also increased by Sema3A stimulation. In conclusion, we proved that exogenous Sema3A stimulation might repair the osteogenic capacity of BMSCs-D, thus providing a new strategy for restoring the impaired bone regeneration ability for T2DM patients.
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12
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miR-484/MAP2/c-Myc-positive regulatory loop in glioma promotes tumor-initiating properties through ERK1/2 signaling. J Mol Histol 2018; 49:209-218. [PMID: 29480405 DOI: 10.1007/s10735-018-9760-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 02/05/2018] [Indexed: 01/17/2023]
Abstract
Glioma is the most common intracranial malignant tumor. Cancer stem cells (CSCs) are resistant to chemotherapy and radiotherapy, and are closely related to cancer metastasis and recurrence. In this study, we aimed to explore the effect of miR-484 on glioma stemness and the underlying mechanism involved. miR-484 enhanced glioma tumor-initiating properties in vitro and in vivo. Moreover, miR-484 was shown to directly target MAP2, resulting in activation of ERK1/2 signaling and promotion of stemness in glioma. The ERK1/2 signaling facilitated the formation of a miR-484/MAP2/c-Myc positive feedback loop in glioma. High miR-484 expression predicted a poor prognosis for glioma patients, and high MAP2 expression predicted a good prognosis for glioma patients. Low miR-484 expression and high MAP2 expression was associated with the best prognosis in glioma. Our study suggests that miR-484 and MAP2 can be utilized as predictors for the clinical diagnosis and prognosis of glioma, and miR-484 and MAP2 are potential targets for the treatment of glioma.
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