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Yankey A, Oh M, Lee BL, Desai TK, Somarowthu S. A novel partnership between lncTCF7 and SND1 regulates the expression of the TCF7 gene via recruitment of the SWI/SNF complex. Sci Rep 2024; 14:19384. [PMID: 39169000 PMCID: PMC11339422 DOI: 10.1038/s41598-024-69792-8] [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: 02/01/2024] [Accepted: 08/08/2024] [Indexed: 08/23/2024] Open
Abstract
Long non-coding RNAs (lncRNAs) play key roles in cellular pathways and disease progression, yet their molecular mechanisms remain largely understudied. The lncRNA lncTCF7 has been shown to promote tumor progression by recruiting the SWI/SNF complex to the TCF7 promoter, activating its expression and the WNT signaling pathway. However, how lncTCF7 recruits SWI/SNF remains to be determined, and lncTCF7-specific binding partners are unknown. Using RNA-pulldown and quantitative mass spectrometry, we identified a novel interacting protein partner for lncTCF7, SND1, a multifunctional RNA binding protein that can also function as a transcription co-activator. Knockdown analysis of lncTCF7 and SND1 reveals that they are both required for the expression of TCF7. Chromatin immunoprecipitation assays suggest that both SND1 and lncTCF7 are required for recruiting the SWI/SNF chromatin remodeling complex, and these functions, in tandem, activate the expression of TCF7. Finally, using structural probing and RNA-pulldown of lncTCF7 and its subdomains, we highlight the potential binding region for SND1 in the 3'-end of lncTCF7. Overall, this study highlights the critical roles lncRNAs play in regulating gene expression and provides new insights into the complex network of interactions that underlie this process.
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Affiliation(s)
- Allison Yankey
- Graduate School of Biomedical Sciences and Professional Studies, College of Medicine, Drexel University, Philadelphia, PA, USA
| | - Mihyun Oh
- Graduate School of Biomedical Sciences and Professional Studies, College of Medicine, Drexel University, Philadelphia, PA, USA
| | - Bo Lim Lee
- Graduate School of Biomedical Sciences and Professional Studies, College of Medicine, Drexel University, Philadelphia, PA, USA
| | - Tisha Kalpesh Desai
- Graduate School of Biomedical Sciences and Professional Studies, College of Medicine, Drexel University, Philadelphia, PA, USA
| | - Srinivas Somarowthu
- Department of Biochemistry and Molecular Biology, College of Medicine, Drexel University, Philadelphia, PA, USA.
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2
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Li T, Li RHW, Ng EHY, Yeung WSB, Chiu PCN, Chan RWS. Interleukin 6 at menstruation promotes the proliferation and self-renewal of endometrial mesenchymal stromal/stem cells through the WNT/β-catenin signaling pathway. Front Immunol 2024; 15:1378863. [PMID: 38765018 PMCID: PMC11099287 DOI: 10.3389/fimmu.2024.1378863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Accepted: 04/15/2024] [Indexed: 05/21/2024] Open
Abstract
Background At menstruation, the functional layer of the human endometrium sheds off due to the trigger of the release of inflammatory factors, including interleukin 6 (IL-6), as a result of a sharp decline in progesterone levels, leading to tissue breakdown and bleeding. The endometrial mesenchymal stem-like cells (CD140b+CD146+ eMSC) located in the basalis are responsible for the cyclical regeneration of the endometrium after menstruation. Endometrial cells from the menstruation phase have been proven to secrete a higher amount of IL-6 and further enhance the self-renewal and clonogenic activity of eMSC. However, the IL-6-responsive mechanism remains unknown. Thus, we hypothesized that IL-6 secreted from niche cells during menstruation regulates the proliferation and self-renewal of eMSC through the WNT/β-catenin signaling pathway. Methods In this study, the content of IL-6 across the menstrual phases was first evaluated. Coexpression of stem cell markers (CD140b and CD146) with interleukin 6 receptor (IL-6R) was confirmed by immunofluorescent staining. In vitro functional assays were conducted to investigate the effect of IL-6 on the cell activities of eMSC, and the therapeutic role of these IL-6- and WNT5A-pretreated eMSC on the repair of injured endometrium was observed using an established mouse model. Results The endometrial cells secrete a high amount of IL-6 under hypoxic conditions, which mimic the physiological microenvironment in the menstruation phase. Also, the expression of IL-6 receptors was confirmed in our eMSC, indicating their capacity to respond to IL-6 in the microenvironment. Exogenous IL-6 can significantly enhance the self-renewal, proliferation, and migrating capacity of eMSC. Activation of the WNT/β-catenin signaling pathway was observed upon IL-6 treatment, while suppression of the WNT/β-catenin signaling impaired the stimulatory role of IL-6 on eMSC activities. IL-6- and WNT5A-pretreated eMSC showed better performance during the regeneration of the injured mouse endometrium. Conclusion We demonstrate that the high level of IL-6 produced by endometrial cells at menstruation can induce the stem cells in the human endometrium to proliferate and migrate through the activation of the WNT/β-catenin pathway. Treatment of eMSC with IL-6 and WNT5A might enhance their therapeutic potential in the regeneration of injured endometrium.
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Affiliation(s)
- Tianqi Li
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Raymond H. W. Li
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
| | - Ernest H. Y. Ng
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
| | - William S. B. Yeung
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Centre for Translational Stem Cell Biology, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
| | - Philip C. N. Chiu
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
| | - Rachel W. S. Chan
- Department of Obstetrics and Gynaecology, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
- Shenzhen Key Laboratory of Fertility Regulation, The University of Hong Kong Shenzhen Hospital, Shenzhen, China
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Jiang N, Tian X, Wang Q, Hao J, Jiang J, Wang H. Regulation Mechanisms and Maintenance Strategies of Stemness in Mesenchymal Stem Cells. Stem Cell Rev Rep 2024; 20:455-483. [PMID: 38010581 DOI: 10.1007/s12015-023-10658-3] [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] [Accepted: 11/16/2023] [Indexed: 11/29/2023]
Abstract
Stemness pertains to the intrinsic ability of mesenchymal stem cells (MSCs) to undergo self-renewal and differentiate into multiple lineages, while simultaneously impeding their differentiation and preserving crucial differentiating genes in a state of quiescence and equilibrium. Owing to their favorable attributes, including uncomplicated isolation protocols, ethical compliance, and ease of procurement, MSCs have become a focal point of inquiry in the domains of regenerative medicine and tissue engineering. As age increases or ex vivo cultivation is prolonged, the functionality of MSCs decreases and their stemness gradually diminishes, thereby limiting their potential therapeutic applications. Despite the existence of several uncertainties surrounding the comprehension of MSC stemness, considerable advancements have been achieved in the clarification of the potential mechanisms that lead to stemness loss, as well as the associated strategies for stemness maintenance. This comprehensive review provides a systematic overview of the factors influencing the preservation of MSC stemness, the molecular mechanisms governing it, the strategies for its maintenance, and the therapeutic potential associated with stemness. Finally, we underscore the obstacles and prospective avenues in present investigations, providing innovative perspectives and opportunities for the preservation and therapeutic utilization of MSC stemness.
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Affiliation(s)
- Nizhou Jiang
- Central Hospital of Dalian University of Technology Department of Spine Surgery, Dalian, China
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Xiliang Tian
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Quanxiang Wang
- Hongqi Hospital Affiliated to Mudanjiang Medical University, Mudanjiang, China
| | - Jiayu Hao
- Central Hospital of Dalian University of Technology Department of Spine Surgery, Dalian, China
| | - Jian Jiang
- Central Hospital of Dalian University of Technology Department of Spine Surgery, Dalian, China.
| | - Hong Wang
- Central Hospital of Dalian University of Technology Department of Spine Surgery, Dalian, China.
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Hu G, Wu L, Xue K, Han H, Sun Y, Gan K, Zhu J, Shi Q, Du T. Differential expression of circular RNAs in interleukin 6-promoted osteogenic differentiation of human stem cells from apical papilla. Clin Oral Investig 2023; 27:7765-7776. [PMID: 37962668 DOI: 10.1007/s00784-023-05366-8] [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: 07/07/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023]
Abstract
INTRODUCTION Studies have shown that interleukin 6 (IL-6) can regulate stem cell osteogenic differentiation; however, the exact mechanism is not clear. Circular RNAs (circRNAs) are closed circular non-coding RNAs that are involved in the process of stem cell osteogenic differentiation. Therefore, the purpose of this present study was to investigate the effect of IL-6 treatment on osteogenic differentiation of human apical tooth papillae stem cells (hSCAPs), and to detect the difference in circRNA expression using gene microarray technology. METHODS After extraction and identification of hSCAPs, alkaline phosphatase (ALP) activity, alizarin red staining, and calcium ion quantitative assay were used to determine the changes of ALP enzyme, mineralized nodules, and matrix calcium levels before and after IL-6 treatment of hSCAPs gene microarray technology was used to analyze the changes in circRNA expression levels before and after IL-6 induction of mineralization. The four selected circRNAs were validated by qRT-PCR. Moreover, gene ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) were used to predict the potential functions and biological signaling pathways of circRNAs. Finally, these data are integrated and analyzed to construct circRNA-microRNA-mRNA networks. RESULTS Alp and Alizarin red staining confirmed that IL-6 promoted the osteogenic differentiation of hSCAPs. The gene microarray results identified 132 differentially expressed circRNAs, of which 117 were upregulated and 15 were downregulated. Bioinformatic analysis predicted that the circRNA-406620/miR-103a-3p/FAT atypical cadherin 4 (FAT4) pathway might be involved in regulating IL-6 to promote osteogenic differentiation of hSCAPs. CONCLUSION Differentially expressed circRNAs might be closely involved in regulating IL-6 to promote osteogenic differentiation of hSCAPs.
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Affiliation(s)
- Guang Hu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Laidi Wu
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Kaiyang Xue
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Hao Han
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Yuhui Sun
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Kang Gan
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Juanfang Zhu
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China
| | - Qi Shi
- Department of Stomatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
- School of Stomatology, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Tianfeng Du
- Department of Stomatology, The First Affiliated Hospital of Zhengzhou University, No.1 Jianshe East Road, Zhengzhou, 450052, Henan, China.
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Sarsenova M, Kim Y, Raziyeva K, Kazybay B, Ogay V, Saparov A. Recent advances to enhance the immunomodulatory potential of mesenchymal stem cells. Front Immunol 2022; 13:1010399. [PMID: 36211399 PMCID: PMC9537745 DOI: 10.3389/fimmu.2022.1010399] [Citation(s) in RCA: 27] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/07/2022] [Indexed: 11/19/2022] Open
Abstract
Considering the unique therapeutic potential of mesenchymal stem cells (MSCs), including their immunosuppressive and immunomodulatory properties as well as their ability to improve tissue regeneration, these cells have attracted the attention of scientists and clinicians for the treatment of different inflammatory and immune system mediated disorders. However, various clinical trials using MSCs for the therapeutic purpose are conflicting and differ from the results of promising preclinical studies. This inconsistency is caused by several factors such as poor migration and homing capacities, low survival rate, low level of proliferation and differentiation, and donor-dependent variation of the cells. Enhancement and retention of persistent therapeutic effects of the cells remain a challenge to overcome in MSC-based therapy. In this review, we summarized various approaches to enhance the clinical outcomes of MSC-based therapy as well as revised current and future perspectives for the creation of cellular products with improved potential for diverse clinical applications.
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Affiliation(s)
- Madina Sarsenova
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Yevgeniy Kim
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Kamila Raziyeva
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Bexultan Kazybay
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan, Kazakhstan
| | - Vyacheslav Ogay
- Laboratory of Stem Cells, National Center for Biotechnology, Nur-Sultan, Kazakhstan
| | - Arman Saparov
- Department of Medicine, School of Medicine, Nazarbayev University, Nur-Sultan, Kazakhstan
- *Correspondence: Arman Saparov,
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Matta A, Nader V, Lebrin M, Gross F, Prats AC, Cussac D, Galinier M, Roncalli J. Pre-Conditioning Methods and Novel Approaches with Mesenchymal Stem Cells Therapy in Cardiovascular Disease. Cells 2022; 11:1620. [PMID: 35626657 PMCID: PMC9140025 DOI: 10.3390/cells11101620] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/08/2022] [Accepted: 05/10/2022] [Indexed: 02/04/2023] Open
Abstract
Transplantation of mesenchymal stem cells (MSCs) in the setting of cardiovascular disease, such as heart failure, cardiomyopathy and ischemic heart disease, has been associated with good clinical outcomes in several trials. A reduction in left ventricular remodeling, myocardial fibrosis and scar size, an improvement in endothelial dysfunction and prolonged cardiomyocytes survival were reported. The regenerative capacity, in addition to the pro-angiogenic, anti-apoptotic and anti-inflammatory effects represent the main target properties of these cells. Herein, we review the different preconditioning methods of MSCs (hypoxia, chemical and pharmacological agents) and the novel approaches (genetically modified MSCs, MSC-derived exosomes and engineered cardiac patches) suggested to optimize the efficacy of MSC therapy.
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Affiliation(s)
- Anthony Matta
- Department of Cardiology, Institute CARDIOMET, University Hospital of Toulouse, 31059 Toulouse, France; (A.M.); (V.N.); (M.L.); (F.G.); (M.G.)
- Faculty of Medicine, Holy Spirit University of Kaslik, Kaslik 446, Lebanon
- Department of Cardiology, Intercommunal Hospital Centre Castres-Mazamet, 81100 Castres, France
| | - Vanessa Nader
- Department of Cardiology, Institute CARDIOMET, University Hospital of Toulouse, 31059 Toulouse, France; (A.M.); (V.N.); (M.L.); (F.G.); (M.G.)
- Faculty of Pharmacy, Lebanese University, Beirut 6573/14, Lebanon
| | - Marine Lebrin
- Department of Cardiology, Institute CARDIOMET, University Hospital of Toulouse, 31059 Toulouse, France; (A.M.); (V.N.); (M.L.); (F.G.); (M.G.)
- CIC-Biotherapies, University Hospital of Toulouse, 31059 Toulouse, France
| | - Fabian Gross
- Department of Cardiology, Institute CARDIOMET, University Hospital of Toulouse, 31059 Toulouse, France; (A.M.); (V.N.); (M.L.); (F.G.); (M.G.)
- CIC-Biotherapies, University Hospital of Toulouse, 31059 Toulouse, France
| | | | - Daniel Cussac
- INSERM I2MC—UMR1297, 31432 Toulouse, France; (A.-C.P.); (D.C.)
| | - Michel Galinier
- Department of Cardiology, Institute CARDIOMET, University Hospital of Toulouse, 31059 Toulouse, France; (A.M.); (V.N.); (M.L.); (F.G.); (M.G.)
| | - Jerome Roncalli
- Department of Cardiology, Institute CARDIOMET, University Hospital of Toulouse, 31059 Toulouse, France; (A.M.); (V.N.); (M.L.); (F.G.); (M.G.)
- CIC-Biotherapies, University Hospital of Toulouse, 31059 Toulouse, France
- INSERM I2MC—UMR1297, 31432 Toulouse, France; (A.-C.P.); (D.C.)
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Yu J, Xiao M, Ren G. Long non-coding RNA XIST promotes osteoporosis by inhibiting the differentiation of bone marrow mesenchymal stem cell by sponging miR-29b-3p that suppresses nicotinamide N-methyltransferase. Bioengineered 2021; 12:6057-6069. [PMID: 34486487 PMCID: PMC8806730 DOI: 10.1080/21655979.2021.1967711] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Bone formation is important in the development of osteoporosis (OP). X–inactive specific transcript (XIST), a lncRNA, is involved in this process; however, mode of its action is not known. We compared the serum levels of XIST and miR-29b-3p among the patients with and without OP. In rat bone marrow mesenchymal stem cells (BMSCs), during osteogenic differentiation, XIST expression was detected first, followed by overexpression or suppression of miR-29b-3p and NNMT. Expression of osteogenic genes, ALP (electrochemical alkaline phosphatase) and RUNX2 (Runt-related transcription factor 2) were detected by RT-qPCR and western blots, and the calcium nodules in BMSCs were detected by staining. The relationships of XIST, miR-29b-3p, and NNMT were characterized by dual-luciferase reporter assay. Serum XIST was significantly upregulated in patients of OP. XIST downregulated the ALP and Runx2 levels and inhibited calcium nodules, whereas low expression of XIST reversed these events. MiR-29b-3p was inhibited by XIST sponge and lowered the levels of ALP, Runx2, and calcium nodules. NNMT was negatively regulated by miR-29b-3p, promoting the osteogenic differentiation of BMSCs. In conclusion, XIST is highly expressed in OP, and regulates NNMT by sponging miR-29b-3p to suppress the osteogenic differentiation of BMSCs.
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Affiliation(s)
- Jiang Yu
- Department of Orthopedics Surgery, Affiliated Hospital of Jianghan University, Wuhan, China
| | - Min Xiao
- Department of Internal Schistosomiasis Ward, Wuhan Daishan Hospital, Wuhan, China
| | - Guohai Ren
- Department of Orthopedics Surgery, Affiliated Hospital of Jianghan University, Wuhan, China
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8
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Chen L, Hu J, Zhou B, Li Y, Wei K, Wang J, Lv H, Zeng F. Effect of Integrin-Linked Kinase on Osteogenesis of Bone Marrow Mesenchymal Stem Cells in Inflammatory Environment via Regulating Mitogen Activated Protein Kinase/Protein Kinase B Signaling Pathway. J BIOMATER TISS ENG 2021. [DOI: 10.1166/jbt.2021.2559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Osteoarthritis (OA) pathogenesis involves inflammation, age, weight and other factors. Integrin-linked kinase (ILK) regulates cell apoptosis, metastasis, and growth. However, whether ILK affects bone formation of bone marrow mesenchymal stem cells in an inflammatory environment has
not been elucidated. Rat BMSCs were isolated and assigned into control group, inflammation group (lipopolysaccharide was added to cells); and si-ILK group (ILK siRNA was transfected into the inflammation group BMSCs) followed by analysis of cell proliferation by MTT assay, expression of ILK,
Runx2 and OP by real time PCR, ALp activity, TNF-α and IL-6 secretion by ELISA and MAPK/AKT signaling protein expression by western blot. Compared to control, ILK in BMSCs cells in inflammatory environment was significantly upregulated, resulting in inhibition of cell proliferation,
decreased ALP activity, reduced expression of osteogenic genes Runx2 and OP, increased secretion of TNF-α and IL-6, and downregulated p-AKT (P < 0.05); transfection of ILK siRNA down-regulated ILK in inflammatory environment BMSCs, which significantly increased BMSCs
cell proliferation, increased ALP activity and expression of Runx2 and OP, decreased TNF-α and IL-6 secretion and increased p-AKT expression (P < 0.05). ILK expression is increased in BMSCs in an inflammatory environment. Down-regulation of ILK in BMSCs cells in an inflammatory
environment can regulate MAPK/AKT signaling, inhibit inflammatory factors secretion, thereby promoting BMSCs proliferation and osteogenesis differentiation.
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Affiliation(s)
- Liyuan Chen
- Second Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine (First People’s Hospital of Baiyin City), Baiyin, Gansu, 730900, China
| | - Jieliang Hu
- Second Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine (First People’s Hospital of Baiyin City), Baiyin, Gansu, 730900, China
| | - Baojun Zhou
- Second Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine (First People’s Hospital of Baiyin City), Baiyin, Gansu, 730900, China
| | - Yan Li
- Department of Electrophysiology, People’s Hospital of Xingguo County, Ganzhou, Jiangxi, 342400, China
| | - Kongxing Wei
- Second Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine (First People’s Hospital of Baiyin City), Baiyin, Gansu, 730900, China
| | - Jinglei Wang
- Second Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine (First People’s Hospital of Baiyin City), Baiyin, Gansu, 730900, China
| | - Hongyan Lv
- Second Department of Orthopedics, The Third Affiliated Hospital of Gansu University of Traditional Chinese Medicine (First People’s Hospital of Baiyin City), Baiyin, Gansu, 730900, China
| | - Fanyun Zeng
- Emergency Traumatic Surgery, The Affiliated Ganzhou Hospital of Nanchang University (Ganzhou People’s Hospital), Ganzhou, Jiangxi, 341000, China
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Lee J, Henderson K, Massidda MW, Armenta-Ochoa M, Im BG, Veith A, Lee BK, Kim M, Maceda P, Yoon E, Samarneh L, Wong M, Dunn AK, Kim J, Baker AB. Mechanobiological conditioning of mesenchymal stem cells for enhanced vascular regeneration. Nat Biomed Eng 2021; 5:89-102. [PMID: 33483713 PMCID: PMC8875880 DOI: 10.1038/s41551-020-00674-w] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Accepted: 12/09/2020] [Indexed: 01/30/2023]
Abstract
Using endogenous mesenchymal stem cells for treating myocardial infarction and other cardiovascular conditions typically results in poor efficacy, in part owing to the heterogeneity of the harvested cells and of the patient responses. Here, by means of high-throughput screening of the combinatorial space of mechanical-strain level and of the presence of particular kinase inhibitors, we show that human mesenchymal stem cells can be mechanically and pharmacologically conditioned to enhance vascular regeneration in vivo. Mesenchymal stem cells conditioned to increase the activation of signalling pathways mediated by Smad2/3 (mothers against decapentaplegic homolog 2/3) and YAP (Yes-associated protein) expressed markers that are associated with pericytes and endothelial cells, displayed increased angiogenic activity in vitro, and enhanced the formation of vasculature in mice after subcutaneous implantation and after implantation in ischaemic hindlimbs. These effects were mediated by the crosstalk of endothelial-growth-factor receptors, transforming-growth-factor-beta receptor type 1 and vascular-endothelial-growth-factor receptor 2. Mechanical and pharmacological conditioning can significantly enhance the regenerative properties of mesenchymal stem cells.
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Affiliation(s)
- Jason Lee
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Kayla Henderson
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Miles W. Massidda
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | | | - Byung Gee Im
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Austin Veith
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Bum-Kyu Lee
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX
| | - Mijeong Kim
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX
| | - Pablo Maceda
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Eun Yoon
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Lara Samarneh
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Mitchell Wong
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Andrew K. Dunn
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX
| | - Jonghwan Kim
- Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX
| | - Aaron B. Baker
- University of Texas at Austin, Department of Biomedical Engineering, Austin, TX,Institute for Cellular and Molecular Biology, University of Texas at Austin, Austin, TX,The Institute for Computational Engineering and Sciences, University of Texas at Austin, Austin, TX,Institute for Biomaterials, Drug Delivery and Regenerative Medicine, University of Texas at Austin, Austin, TX
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10
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Li M, Cong R, Yang L, Yang L, Zhang Y, Fu Q. A novel lncRNA LNC_000052 leads to the dysfunction of osteoporotic BMSCs via the miR-96-5p-PIK3R1 axis. Cell Death Dis 2020; 11:795. [PMID: 32968049 PMCID: PMC7511361 DOI: 10.1038/s41419-020-03006-7] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 09/07/2020] [Accepted: 09/09/2020] [Indexed: 12/11/2022]
Abstract
Bone marrow-derived mesenchymal stem cells (BMSCs) in postmenopausal osteoporosis models exhibit loss of viability and multipotency. Identification of the differentially expressed RNAs in osteoporotic BMSCs could reveal the mechanisms underlying BMSC dysfunction under physiological conditions, which might improve stem cell therapy and tissue regeneration. In this study, we performed high-throughput RNA sequencing and showed that the novel long non-coding RNA (lncRNA) LNC_000052 and its co-expressed mRNA PIK3R1 were upregulated in osteoporotic BMSCs. Knockdown of LNC_000052 could promote BMSC proliferation, migration, osteogenesis, and inhibit apoptosis via the PI3K/Akt signaling pathway. We found that both LNC_000052 and PIK3R1 shared a miRNA target, miR-96-5p, which was downregulated in osteoporotic BMSCs. Their binding sites were confirmed by dual-luciferase assays. Downregulation of miR-96-5p could restrain the effects of LNC_000052 knockdown while upregulation of miR-96-5p together with LNC_000052 knockdown could improve the therapeutic effects of BMSCs. In summary, the LNC_000052-miR-96-5p-PIK3R1 axis led to dysfunction of osteoporotic BMSCs and might be a novel therapeutic target for stem cell therapy and tissue regeneration.
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Affiliation(s)
- Mingyang Li
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Rong Cong
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Liyu Yang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Lei Yang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yiqi Zhang
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China
| | - Qin Fu
- Department of Orthopedics, Shengjing Hospital of China Medical University, Shenyang, China.
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11
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Understanding the regulatory mechanisms of endometrial cells on activities of endometrial mesenchymal stem-like cells during menstruation. Stem Cell Res Ther 2020; 11:239. [PMID: 32552749 PMCID: PMC7302161 DOI: 10.1186/s13287-020-01750-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/25/2020] [Accepted: 05/29/2020] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The identification of endometrial stem/progenitor cells in a high turnover rate tissue suggests that a well-orchestrated underlying network controls the behaviour of these stem cells. The thickness of the endometrium can grow from 0.5-1 mm to 5-7 mm within a week indicating the need of stem cells for self-renewal and differentiation during this period. The cyclical regeneration of the endometrium suggests specific signals can activate the stem cells during or shortly after menstruation. METHODS Endometrial mesenchymal stem-like cells (eMSCs) were cocultured with endometrial epithelial or stromal cells from different phases of the menstrual cycle; the clonogenicity and the phenotypic expression of eMSC markers (CD140b and CD146) were assessed. The functional role of WNT/β-catenin signalling on eMSC was determined by western blot analysis, immunofluorescent staining, flow cytometry, quantitative real-time PCR and small interfering RNA. The cytokine levels in the conditioned medium of epithelial or stromal cells cocultured with eMSCs were evaluated by enzyme-linked immunosorbent assays. RESULTS Coculture of endometrial cells (epithelial or stromal) from the menstrual phase enhanced the clonogenicity and self-renewal activities of eMSCs. Such phenomenon was not observed in niche cells from the proliferative phase. Coculture with endometrial cells from the menstrual phase confirmed an increase in expression of active β-catenin in the eMSCs. Treatment with IWP-2, a WNT inhibitor, suppressed the observed effects. Anti-R-spondin-1 antibody reduced the stimulatory action of endometrial niche cells on WNT/β-catenin activation in the T cell factor/lymphoid enhancer-binding factor luciferase reporter assay. Moreover, the mRNA level and protein immunoreactivities of leucine-rich repeat-containing G-protein coupled receptor 5 were higher in eMSCs than unfractionated stromal cells. Conditioned media of endometrial niche cells cocultured with eMSCs contained increased levels of C-X-C motif ligand 1 (CXCL1), CXCL5 and interleukin 6. Treatment with these cytokines increased the clonogenic activity and phenotypic expression of eMSCs. CONCLUSIONS Our findings indicate a role of WNT/β-catenin signalling in regulating activities of endometrial stem/progenitor cells during menstruation. Certain cytokines at menstruation can stimulate the proliferation and self-renewal activities of eMSCs. Understanding the mechanism in the regulation of eMSCs may contribute to treatments of endometrial proliferative disorders such as Asherman's syndrome.
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12
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Deng J, Guo M, Li G, Xiao J. Gene therapy for cardiovascular diseases in China: basic research. Gene Ther 2020; 27:360-369. [PMID: 32341485 DOI: 10.1038/s41434-020-0148-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Revised: 03/26/2020] [Accepted: 04/02/2020] [Indexed: 12/14/2022]
Abstract
Cardiovascular disease has become a major disease affecting health in the whole world. Gene therapy, delivering foreign normal genes into target cells to repair damages caused by defects and abnormal genes, shows broad prospects in treating different kinds of cardiovascular diseases. China has achieved great progress of basic gene therapy researches and pathogenesis of cardiovascular diseases in recent years. This review will summarize the latest research about gene therapy of proteins, epigenetics, including noncoding RNAs and genome-editing technology in myocardial infarction, cardiac ischemia-reperfusion injury, atherosclerosis, muscle atrophy, and so on in China. We wish to highlight some important findings about the essential roles of basic gene therapy in this field, which might be helpful for searching potential therapeutic targets for cardiovascular disease.
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Affiliation(s)
- Jiali Deng
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, 200444, China
| | - Mengying Guo
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, 200444, China.,School of Medicine, Shanghai University, Shanghai, 200444, China
| | - Guoping Li
- Cardiovascular Division of the Massachusetts, General Hospital and Harvard Medical School, Boston, MA, 02215, USA
| | - Junjie Xiao
- Cardiac Regeneration and Ageing Lab, Institute of Cardiovascular Sciences, School of Life Science, Shanghai University, Shanghai, 200444, China. .,School of Medicine, Shanghai University, Shanghai, 200444, China.
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13
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Improved therapeutics of modified mesenchymal stem cells: an update. J Transl Med 2020; 18:42. [PMID: 32000804 PMCID: PMC6993499 DOI: 10.1186/s12967-020-02234-x] [Citation(s) in RCA: 96] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2019] [Accepted: 01/22/2020] [Indexed: 12/15/2022] Open
Abstract
Background Mesenchymal stromal cells (MSCs) have attracted intense interest due to their powerful intrinsic properties of self-regeneration, immunomodulation and multi-potency, as well as being readily available and easy to isolate and culture. Notwithstanding, MSC based therapy suffers reduced efficacy due to several challenges which include unfavorable microenvironmental factors in vitro and in vivo. Body In the quest to circumvent these challenges, several modification techniques have been applied to the naïve MSC to improve its inherent therapeutic properties. These modification approaches can be broadly divided into two groups to include genetic modification and preconditioning modification (using drugs, growth factors and other molecules). This field has witnessed great progress and continues to gather interest and novelty. We review these innovative approaches in not only maintaining, but also enhancing the inherent biological activities and therapeutics of MSCs with respect to migration, homing to target site, adhesion, survival and reduced premature senescence. We discuss the application of the improved modified MSC in some selected human diseases. Possible ways of yet better enhancing the therapeutic outcome and overcoming challenges of MSC modification in the future are also elaborated. Conclusion The importance of prosurvival and promigratory abilities of MSCs in their therapeutic applications can never be overemphasized. These abilities are maintained and even further enhanced via MSC modifications against the inhospitable microenvironment during culture and transplantation. This is a turning point in MSC-based therapy with promising preclinical studies and higher future prospect.
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Owens MC, Clark SC, Yankey A, Somarowthu S. Identifying Structural Domains and Conserved Regions in the Long Non-Coding RNA lncTCF7. Int J Mol Sci 2019; 20:ijms20194770. [PMID: 31561429 PMCID: PMC6801803 DOI: 10.3390/ijms20194770] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 12/14/2022] Open
Abstract
Long non-coding RNA (lncRNA) biology is a rapidly growing area of study. Thousands of lncRNAs are implicated as key players in cellular pathways and cancer biology. However, the structure–function relationships of these novel biomolecules are not well understood. Recent structural studies suggest that lncRNAs contain modular structural domains, which play a crucial role in their function. Here, we hypothesized that such structural domains exist in lncTCF7, a conserved lncRNA implicated in the development and progression of several cancers. To understand the structure–function relationship of lncTCF7, we characterized its secondary structure using chemical probing methods. Our model revealed structural domains and conserved regions in lncTCF7. One of the modular domains identified here coincides with a known protein-interacting domain. The model reported herein is, to our knowledge, the first structural model of lncTCF7 and thus will serve to direct future studies that will provide fundamental insights into the function of this lncRNA.
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Affiliation(s)
- Michael C Owens
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA 19101, USA.
| | - Sean C Clark
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA 19101, USA.
| | - Allison Yankey
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA 19101, USA.
| | - Srinivas Somarowthu
- Department of Biochemistry and Molecular Biology, Drexel University College of Medicine, Philadelphia, PA 19101, USA.
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