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Shu T, Li J, Gu J, Wu L, Xie P, Zhang D, Li W, Wan J, Zheng X. Long noncoding RNA UCA1 promotes the chondrogenic differentiation of human bone marrow mesenchymal stem cells via regulating PARP1 ubiquitination. Stem Cells 2024; 42:752-762. [PMID: 38829368 DOI: 10.1093/stmcls/sxae038] [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: 09/09/2023] [Accepted: 04/30/2024] [Indexed: 06/05/2024]
Abstract
Bone marrow mesenchymal stem cells (BMSCs) possess the potential to differentiate into cartilage cells. Long noncoding RNA (lncRNAs) urothelial carcinoma associated 1 (UCA1) has been confirmed to improve the chondrogenic differentiation of marrow mesenchymal stem cells (MSCs). Herein, we further investigated the effects and underlying mechanisms of these processes. The expression of UCA1 was positively associated with chondrogenic differentiation and the knockdown of UCA1 has been shown to attenuate the expression of chondrogenic markers. RNA pull-down assay and RNA immunoprecipitation showed that UCA1 could directly bind to PARP1 protein. UCA1 could improve PARP1 protein via facilitating USP9X-mediated PARP1 deubiquitination. Then these processes stimulated the NF-κB signaling pathway. In addition, PARP1 was declined in UCA1 knockdown cells, and silencing of PARP1 could diminish the increasing effects of UCA1 on the chondrogenic differentiation from MSCs and signaling pathway activation. Collectively, these outcomes suggest that UCA1 could act as a mediator of PARP1 protein ubiquitination and develop the chondrogenic differentiation of MSCs.
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Affiliation(s)
- Tao Shu
- Department of Orthopaedics, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong 518000, People's Republic of China
- Department of Spine Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Jiachun Li
- Department of Orthopaedics, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong 518000, People's Republic of China
| | - Juyuan Gu
- Department of Orthopedics, Hebei Medical University Third Hospital, Shijiazhuang, Hebei 050051, People's Republic of China
| | - Liang Wu
- Department of Orthopedics, South China Hospital, Health Science Center, Shenzhen University, Shenzhen 518116, People's Republic of China
| | - Peng Xie
- Department of Nuclear Medicine, Hebei Medical University Third Hospital, Shijiazhuang, Hebei 050051, People's Republic of China
| | - Dongfeng Zhang
- Department of Orthopedics, South China Hospital, Health Science Center, Shenzhen University, Shenzhen 518116, People's Republic of China
| | - Wen Li
- Department of Spine Surgery, The Key Laboratory of Advanced Interdisciplinary Studies Center, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong 510120, People's Republic of China
| | - Junming Wan
- Department of Orthopaedics, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, Guangdong 518000, People's Republic of China
| | - Xiaozuo Zheng
- Department of Orthopedics, Hebei Medical University Third Hospital, Shijiazhuang, Hebei 050051, People's Republic of China
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Maroni P, Pesce NA, Lombardi G. RNA-binding proteins in bone pathophysiology. Front Cell Dev Biol 2024; 12:1412268. [PMID: 38966428 PMCID: PMC11222650 DOI: 10.3389/fcell.2024.1412268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Accepted: 06/04/2024] [Indexed: 07/06/2024] Open
Abstract
Bone remodelling is a highly regulated process that maintains mineral homeostasis and preserves bone integrity. During this process, intricate communication among all bone cells is required. Indeed, adapt to changing functional situations in the bone, the resorption activity of osteoclasts is tightly balanced with the bone formation activity of osteoblasts. Recent studies have reported that RNA Binding Proteins (RBPs) are involved in bone cell activity regulation. RBPs are critical effectors of gene expression and essential regulators of cell fate decision, due to their ability to bind and regulate the activity of cellular RNAs. Thus, a better understanding of these regulation mechanisms at molecular and cellular levels could generate new knowledge on the pathophysiologic conditions of bone. In this Review, we provide an overview of the basic properties and functions of selected RBPs, focusing on their physiological and pathological roles in the bone.
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Affiliation(s)
- Paola Maroni
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - Noemi Anna Pesce
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
| | - Giovanni Lombardi
- Laboratory of Experimental Biochemistry and Molecular Biology, IRCCS Istituto Ortopedico Galeazzi, Milano, Italy
- Department of Athletics, Strength and Conditioning, Poznań University of Physical Education, Poznań, Poland
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Lavi Arab F, Hoseinzadeh A, Hafezi F, Sadat Mohammadi F, Zeynali F, Hadad Tehran M, Rostami A. Mesenchymal stem cell-derived exosomes for management of prostate cancer: An updated view. Int Immunopharmacol 2024; 134:112171. [PMID: 38701539 DOI: 10.1016/j.intimp.2024.112171] [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: 02/25/2024] [Revised: 04/16/2024] [Accepted: 04/27/2024] [Indexed: 05/05/2024]
Abstract
Prostate cancer represents the second most prevalent form of cancer found in males, and stands as the fifth primary contributor to cancer-induced mortality on a global scale. Research has shown that transplanted mesenchymal stem cells (MSCs) can migrate by homing to tumor sites in the body. In prostate cancer, researchers have explored the fact that MSC-based therapies (including genetically modified delivery vehicles or vectors) and MSC-derived exosomes are emerging as attractive options to improve the efficacy and safety of traditional cancer therapies. In addition, researchers have reported new insights into the application of extracellular vesicle (EV)-MSC therapy as a novel treatment option that could provide a more effective and targeted approach to prostate cancer treatment. Moreover, the new generation of exosomes, which contain biologically functional molecules as signal transducers between cells, can simultaneously deliver different therapeutic agents and induce an anti-tumor phenotype in immune cells and their recruitment to the tumor site. The results of the current research on the use of MSCs in the treatment of prostate cancer may be helpful to researchers and clinicians working in this field. Nevertheless, it is crucial to emphasize that although dual-role MSCs show promise as a therapeutic modality for managing prostate cancer, further investigation is imperative to comprehensively grasp their safety and effectiveness. Ongoing clinical trials are being conducted to assess the viability of MSCs in the management of prostate cancer. The results of these trials will help determine the viability of this approach. Based on the current literature, engineered MSCs-EV offer great potential for application in targeted tumor therapy.
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Affiliation(s)
- Fahimeh Lavi Arab
- Department of Immunology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran; Immunology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
| | - Akram Hoseinzadeh
- Department of Immunology, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran.; Cancer Research Center, Faculty of Medicine, Semnan University of Medical Sciences, Semnan, Iran
| | - Fatemeh Hafezi
- Immunology Research Center, Inflammation and Inflammatory Diseases Division, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Sadat Mohammadi
- Immunology Research Center, Inflammation and Inflammatory Diseases Division, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farid Zeynali
- Department of Urology, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Melika Hadad Tehran
- Department of Biology, Faculty of Sciences, Mashhad Branch, Islamic Azad University, Mashhad, Iran
| | - Amirreza Rostami
- Student Research Committee, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
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Ye L, Yu Z, He L, Yuan J, Zhang X, Li L, Huang X, Ma Y, Zhang L. KAT2A-mediated succinylation modification of notch1 promotes the proliferation and differentiation of dental pulp stem cells by activating notch pathway. BMC Oral Health 2024; 24:407. [PMID: 38556862 PMCID: PMC10981825 DOI: 10.1186/s12903-024-03951-1] [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: 11/29/2023] [Accepted: 01/29/2024] [Indexed: 04/02/2024] Open
Abstract
BACKGROUND Dental pulp stem cells (DPSCs) are a kind of undifferentiated dental mesenchymal stem cells with strong self-renewal ability and multi-differentiation potential. This study aimed to investigate the regulatory functions of succinylation modification in DPSCs. METHODS DPSCs were isolated from the dental pulp collected from healthy subjects, and then stem cell surface markers were identified using flow cytometry. The osteogenic differentiation ability of DPSCs was verified by alkaline phosphatase (ALP) and alizarin red staining methods, while adipogenic differentiation was detected by oil red O staining. Meanwhile, the mRNA of two desuccinylases (SIRT5 and SIRT7) and three succinylases (KAT2A, KAT3B, and CPT1A) in DPSCs before and after mineralization induction were detected using quantitative real-time PCR. The cell cycle was measured by flow cytometry, and the expression of bone-specific genes, including COL1a1 and Runx2 were evaluated by western blotting and were combined for the proliferation and differentiation of DPSCs. Co-immunoprecipitation (co-IP) and immunofluorescence were combined to verify the binding relationship between proteins. RESULTS The specific markers of mesenchymal stem cells were highly expressed in DPSCs, while the osteogenic differentiation ability of isolated DPSCs was confirmed via ALP and alizarin red staining. Similarly, the oil red O staining also verified the adipogenic differentiation ability of DPSCs. The levels of KAT2A were found to be significantly upregulated in mineralization induction, which significantly decreased the ratio of G0/G1 phase and increased S phase cells; converse results regarding cell cycle distribution were obtained when KAT2A was inhibited. Moreover, overexpression of KAT2A promoted the differentiation of DPSCs, while its inhibition exerted the opposite effect. The elevated KAT2A was found to activate the Notch1 signaling pathway, which succinylated Notch1 at the K2177 site to increase their corresponding protein levels in DPSCs. The co-IP results showed that KAT2A and Notch1 were endogenously bound to each other, while inhibition of Notch1 reversed the effects of KAT2A overexpression on the DPSCs proliferation and differentiation. CONCLUSION KAT2A interacted directly with Notch1, succinylating the Notch1 at the K2177 site to increase their corresponding protein levels in DPSCs. Similarly, KAT2A-mediated succinylation modification of Notch1 promotes the DPSCs proliferation and differentiation, suggesting that targeting KAT2A and Notch1 may contribute to tooth regeneration.
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Affiliation(s)
- Longwei Ye
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China
| | - Zeqin Yu
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China
| | - Lin He
- Department of Stomatology, Heilongjiang Province Hospital, Harbin City, 150081, Heilongjiang Province, China
| | - Jie Yuan
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China
| | - Xiaodan Zhang
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China
| | - Lei Li
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China
| | - Xin Huang
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China
| | - Yanyan Ma
- Pharmaceutical Department, The First Affiliated Hospital of Harbin Medical University, Harbin City, 150001, Heilongjiang Province, China
| | - Lei Zhang
- Department of Oral Health and Prevention, The First Affiliated Hospital of Harbin Medical University. Harbin Medical University, School of Stomatology, No.143 Yiman Street, Nangang District, Harbin City, 150001, Heilongjiang Province, China.
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Tao Y, Zhang Q, Wang H, Yang X, Mu H. Alternative splicing and related RNA binding proteins in human health and disease. Signal Transduct Target Ther 2024; 9:26. [PMID: 38302461 PMCID: PMC10835012 DOI: 10.1038/s41392-024-01734-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2023] [Revised: 12/18/2023] [Accepted: 12/27/2023] [Indexed: 02/03/2024] Open
Abstract
Alternative splicing (AS) serves as a pivotal mechanism in transcriptional regulation, engendering transcript diversity, and modifications in protein structure and functionality. Across varying tissues, developmental stages, or under specific conditions, AS gives rise to distinct splice isoforms. This implies that these isoforms possess unique temporal and spatial roles, thereby associating AS with standard biological activities and diseases. Among these, AS-related RNA-binding proteins (RBPs) play an instrumental role in regulating alternative splicing events. Under physiological conditions, the diversity of proteins mediated by AS influences the structure, function, interaction, and localization of proteins, thereby participating in the differentiation and development of an array of tissues and organs. Under pathological conditions, alterations in AS are linked with various diseases, particularly cancer. These changes can lead to modifications in gene splicing patterns, culminating in changes or loss of protein functionality. For instance, in cancer, abnormalities in AS and RBPs may result in aberrant expression of cancer-associated genes, thereby promoting the onset and progression of tumors. AS and RBPs are also associated with numerous neurodegenerative diseases and autoimmune diseases. Consequently, the study of AS across different tissues holds significant value. This review provides a detailed account of the recent advancements in the study of alternative splicing and AS-related RNA-binding proteins in tissue development and diseases, which aids in deepening the understanding of gene expression complexity and offers new insights and methodologies for precision medicine.
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Affiliation(s)
- Yining Tao
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200000, Shanghai, China
- Shanghai Bone Tumor Institution, 200000, Shanghai, China
| | - Qi Zhang
- Department of Biochemistry and Molecular Cell Biology, Shanghai Key Laboratory for Tumor Microenvironment and Inflammation, Shanghai Jiao Tong University School of Medicine, 200000, Shanghai, China
| | - Haoyu Wang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200000, Shanghai, China
- Shanghai Bone Tumor Institution, 200000, Shanghai, China
| | - Xiyu Yang
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200000, Shanghai, China
- Shanghai Bone Tumor Institution, 200000, Shanghai, China
| | - Haoran Mu
- Department of Orthopedics, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, 200000, Shanghai, China.
- Shanghai Bone Tumor Institution, 200000, Shanghai, China.
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Luo B, Jiang Q. Effect of RNA-binding proteins on osteogenic differentiation of bone marrow mesenchymal stem cells. Mol Cell Biochem 2024; 479:383-392. [PMID: 37072640 DOI: 10.1007/s11010-023-04742-y] [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: 03/13/2023] [Accepted: 04/12/2023] [Indexed: 04/20/2023]
Abstract
Tissue regeneration mediated by mesenchymal stem cells (MSCs) is an ideal way to repair bone defects. RNA-binding proteins (RBPs) can affect cell function through post-transcriptional regulation. Exploring the role of RBPs in the process of osteogenic differentiation of bone marrow mesenchymal stem cells (BMSCs) is helpful to find a key method to promote the osteogenic efficiency of BMSCs. By reviewing the literature, we obtained a differentially expressed mRNA dataset during the osteogenic differentiation of BMSCs and a human RBP dataset. A total of 82 differentially expressed RBPs in the osteogenic differentiation of BMSCs were screened by intersection of the two datasets. Functional analysis showed that the differentially expressed RBPs were mainly involved in RNA transcription, translation and degradation through the formation of spliceosomes and ribonucleoprotein complexes. The top 15 RBPs determined by degree score were FBL, NOP58, DDX10, RPL9, SNRPD3, NCL, IFIH1, RPL18A, NAT10, EXOSC5, ALYREF, PA2G4, EIF5B, SNRPD1 and EIF6. The results of this study demonstrate that the expression of many RBPs changed during osteogenic differentiation of BMSCs.
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Affiliation(s)
- Bin Luo
- Department of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical University, No. 4 Tiantan Xili, Beijing, 100050, China
| | - Qingsong Jiang
- Department of Prosthodontics, School of Stomatology, Beijing Stomatological Hospital, Capital Medical University, No. 4 Tiantan Xili, Beijing, 100050, China.
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7
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Chaudhary JK, Ahamad N, Rath PC. Mesenchymal stem cells (MSCs) from the mouse bone marrow show differential expression of interferon regulatory factors IRF-1 and IRF-2. Mol Biol Rep 2024; 51:97. [PMID: 38194130 DOI: 10.1007/s11033-023-09025-9] [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: 08/17/2023] [Accepted: 11/27/2023] [Indexed: 01/10/2024]
Abstract
BACKGROUND Interferon regulatory factors (IRF-1 and IRF-2) are transcription factors widely implicated in various cellular processes, including regulation of inflammatory responses to pathogens, cell proliferation, oncogenesis, differentiation, autophagy, and apoptosis. METHODS We have studied the expression of IRF-1, IRF-2 mRNAs by RT-PCR, cellular localization of the proteins by immunofluorescence, and expression of mRNAs of genes regulated by IRF-1, IRF-2 by RT-PCR in mouse bone marrow cells (BMCs) and mesenchymal stem cells (MSCs). RESULTS Higher level of IRF-1 mRNA was observed in BMCs and MSCs compared to that of IRF-2. Similarly, differential expression of IRF-1 and IRF-2 proteins was observed in BMCs and MSCs. IRF-1 was predominantly localized in the cytoplasm, whereas IRF-2 was localized in the nuclei of BMCs. MSCs showed nucleo-cytoplasmic distribution of IRF-1 and nuclear localization of IRF-2. Constitutive expression of IRF-1 and IRF-2 target genes: monocyte chemoattractant protein-1 (MCP-1), vascular cell adhesion molecule-1 (VCAM-1), cyclooxygenase-2 (COX-2), matrix metalloproteinase-9 (MMP-9), and caspase-1 was observed in both BMCs and MSCs. MSCs showed constitutive expression of the pluripotency-associated factors, Oct3/4 and Sox-2. Lipopolysaccharide (LPS)-treatment of MSCs induced prominent cellular localization of IRF-1 and IRF-2. CONCLUSIONS Our results suggest that IRF-1 and IRF-2 exhibit differential expression of their mRNAs and subcellular localization of the proteins in BMCs and MSCs. These cells also show differential levels of constitutive expression of IRF-1 and IRF-2 target genes. This may regulate immune-responsive properties of BMCs and MSCs through IRF-1, IRF-2-dependent gene expression and protein-protein interaction. Regulating IRF-1 and IRF-2 may be helpful for immunomodulatory functions of MSCs for cell therapy and regenerative medicine.
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Affiliation(s)
- Jitendra Kumar Chaudhary
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Naseem Ahamad
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India
| | - Pramod C Rath
- Molecular Biology Laboratory, School of Life Sciences, Jawaharlal Nehru University, New Delhi, 110067, India.
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Soshnikova NV, Simonov YP, Feoktistov AV, Khamidullina AI, Yastrebova MA, Bayramova DO, Tatarskiy VV, Georgieva SG. New Approach for Studying of Isoforms and High-Homology Proteins in Mammalian Cells. Int J Mol Sci 2023; 24:12153. [PMID: 37569530 PMCID: PMC10419129 DOI: 10.3390/ijms241512153] [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: 06/21/2023] [Revised: 07/24/2023] [Accepted: 07/26/2023] [Indexed: 08/13/2023] Open
Abstract
In mammals, a large number of proteins are expressed as more than one isoform, resulting in the increased diversity of their proteome. Understanding the functions of isoforms is very important, since individual isoforms of the same protein can have oncogenic or pathogenic properties, or serve as disease markers. The high homology of isoforms with ubiquitous expression makes it difficult to study them. In this work, we propose a new approach for the study of protein isoforms in mammalian cells, which makes it possible to individually detect and investigate the functions of an individual isoform. The approach was developed to study the functions of isoforms of the PHF10 protein, a chromatin subunit of the PBAF remodeling complex. We demonstrated the possibility of induced simultaneous suppression of all endogenous PHF10 isoforms and the expression of a single recombinant FLAG-tagged isoform. For this purpose, we created constructs based on the pSLIK plasmid with a cloned cassette containing the recombinant gene of interest and miR30 with the corresponding shRNAs. The doxycycline-induced activation of the cassette allows on and off switching. Using this construct, we achieved the preferential expression of only one recombinant PHF10 isoform with a simultaneously reduced number of all endogenous isoforms. Our approach can be used to study the role of point mutations, the functions of individual domains and important sites, or to individually detect untagged isoforms with knockdown of all endogenous isoforms.
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Affiliation(s)
- Nataliya V. Soshnikova
- Department of Transcription Factors, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
| | - Yuriy P. Simonov
- Department of Transcription Factors, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
| | - Alexey V. Feoktistov
- Department of Transcription Factors, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
- Center for Precision Genome Editing and Genetic Technologies for Biomedicine, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
| | - Alvina I. Khamidullina
- Department of Molecular Oncobiology, Institute of Gene Biology, Russian Academy of Sciences, Vavilov St. 34/5, Moscow 119334, Russia
| | - Margarita A. Yastrebova
- Department of Molecular Oncobiology, Institute of Gene Biology, Russian Academy of Sciences, Vavilov St. 34/5, Moscow 119334, Russia
| | - Darya O. Bayramova
- Department of Transcription Factors, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
| | - Victor V. Tatarskiy
- Department of Molecular Oncobiology, Institute of Gene Biology, Russian Academy of Sciences, Vavilov St. 34/5, Moscow 119334, Russia
| | - Sofia G. Georgieva
- Department of Transcription Factors, Engelhardt Institute of Molecular Biology, Russian Academy of Sciences, Vavilov St. 32, Moscow 119991, Russia
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Xiao Y, Cai G, Feng X, Li Y, Guo W, Guo Q, Huang Y, Su T, Li C, Luo X, Zheng Y, Yang M. Splicing factor YBX1 regulates bone marrow stromal cell fate during aging. EMBO J 2023; 42:e111762. [PMID: 36943004 PMCID: PMC10152142 DOI: 10.15252/embj.2022111762] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 02/24/2023] [Accepted: 02/27/2023] [Indexed: 03/23/2023] Open
Abstract
Senescence and altered differentiation potential of bone marrow stromal cells (BMSCs) lead to age-related bone loss. As an important posttranscriptional regulatory pathway, alternative splicing (AS) regulates the diversity of gene expression and has been linked to induction of cellular senescence. However, the role of splicing factors in BMSCs during aging remains poorly defined. Herein, we found that the expression of the splicing factor Y-box binding protein 1 (YBX1) in BMSCs decreased with aging in mice and humans. YBX1 deficiency resulted in mis-splicing in genes linked to BMSC osteogenic differentiation and senescence, such as Fn1, Nrp2, Sirt2, Sp7, and Spp1, thus contributing to BMSC senescence and differentiation shift during aging. Deletion of Ybx1 in BMSCs accelerated bone loss in mice, while its overexpression stimulated bone formation. Finally, we identified a small compound, sciadopitysin, which attenuated the degradation of YBX1 and bone loss in old mice. Our study demonstrated that YBX1 governs cell fate of BMSCs via fine control of RNA splicing and provides a potential therapeutic target for age-related osteoporosis.
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Affiliation(s)
- Ye Xiao
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Guang‐Ping Cai
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Xu Feng
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Yu‐Jue Li
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Wan‐Hui Guo
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Qi Guo
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Yan Huang
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Tian Su
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Chang‐Jun Li
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
| | - Xiang‐Hang Luo
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaChina
| | - Yong‐Jun Zheng
- Department of Burn SurgeryThe First Affiliated Hospital of Naval Medical UniversityShanghaiChina
| | - Mi Yang
- Department of Endocrinology, Endocrinology Research CenterXiangya Hospital of Central South UniversityChangshaChina
- National Clinical Research Center for Geriatric DisordersXiangya HospitalChangshaChina
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10
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Abatay-Sel F, Erol A, Suleymanoglu M, Demirayak G, Kekik-Cinar C, Kuruca DS, Savran-Oguz F. The in vitro treatment of mesenchymal stem cells for colorectal cancer cells. Med Oncol 2023; 40:103. [PMID: 36811793 DOI: 10.1007/s12032-023-01972-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 02/03/2023] [Indexed: 02/24/2023]
Abstract
Colorectal cancer is the most common tumor of the gastrointestinal system. The conventional treatment options for colorectal cancer are troublesome for both patients and clinicians. Recently, mesenchymal stem cells (MSCs) have been the novel focus for cell therapy due to their migration to tumor sites. In this study, the apoptotic effect of MSCs on colorectal cancer cell lines has been aimed. HCT-116 and HT-29 were selected as the colorectal cancer cell lines. Human umbilical cord blood and Wharton's jelly were used as mesenchymal stem cell sources. To discriminate against the apoptotic effect of MSC on cancer, we also used peripheral blood mononuclear cells (PBMC) as a healthy control group. Cord blood-MSC and PBMC were obtained by ficoll-paque density gradient, and Wharton's jelly-MSC by explant method. Transwell co-culture systems were used as cancer cells or PBMC/MSCs at ratios of 1/5 and 1/10, with incubation times of 24 h and 72 h. The Annexin V/PI-FITC-based apoptosis assay was performed by flow cytometry. Caspase-3 and HTRA2/Omi proteins were measured by ELISA. For both ratios in both cancer cells, it was found that the apoptotic effect of Wharton's jelly-MSC was significantly higher in 72-h incubations (p < 0.006), whereas the effect of cord blood mesenchymal stem cell in 24-h incubations were higher (p < 0.007). In this study, we showed that human cord blood and tissue-derived MSCs treatment led to colorectal cancers to apoptosis. We anticipate that further in vivo studies may shed light on the apoptotic effect of MSC.
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Affiliation(s)
- Figen Abatay-Sel
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey. .,Institute of Graduate Studies in Health Science, Istanbul University, Istanbul, Turkey.
| | - Ayse Erol
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Mediha Suleymanoglu
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Gokhan Demirayak
- Department of Gynecologic Oncology, Bakırköy Sadi Konuk Education and Research Hospital, University of Health Sciences, Istanbul, Turkey
| | - Cigdem Kekik-Cinar
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Durdane Serap Kuruca
- Department of Physiology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
| | - Fatma Savran-Oguz
- Department of Medical Biology, Istanbul Faculty of Medicine, Istanbul University, Istanbul, Turkey
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11
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Kim EJ, Yoon JU, Kim CH, Yoon JY, Kim JY, Kim HS, Choi EJ. Lidocaine inhibits osteogenic differentiation of human dental pulp stem cells in vitro. J Int Med Res 2023; 51:3000605231152100. [PMID: 36748349 PMCID: PMC9909061 DOI: 10.1177/03000605231152100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
Abstract
OBJECTIVE Lidocaine is an amide local anaesthetic commonly used for pain control, however, few studies have investigated the effect of lidocaine on the osteogenic differentiation of human dental pulp stem cells (HDPSCs). The present study aimed to determine the effect of lidocaine on HDPSC viability and osteogenic differentiation. METHODS HDPSCs were incubated with 0, 0.05, 0.2, 0.5, and 1 mM lidocaine for 24, 48 and 72 h, after which, MTT assays were performed. HDPSCs cultured with the above lidocaine concentrations and osteogenic differentiation medium for 7 and 14 days were stained for alkaline phosphatase (ALP). Protein and mRNA levels of relevant osteogenic factors (bone morphogenetic protein-2 [BMP-2] and runt-related transcription factor 2 [RUNX2]) were examined using western blotting and real-time reverse-transcription polymerase chain reaction, respectively. RESULTS Lidocaine did not affect the viability of HDPSCs, however, lidocaine reduced ALP activity in HDPSCs. Levels of ALP, BMP-2, and RUNX2 mRNA were reduced with lidocaine, and levels of BMP-2 and RUNX2 proteins were decreased, versus controls. CONCLUSIONS Lidocaine inhibits osteogenic differentiation markers in HDPSCs in vitro, even at low concentrations, without cytotoxicity. This study suggests that lidocaine may inhibit osteogenic differentiation in HDPSC-mediated regenerative medicine, including pulp regeneration and repair.
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Affiliation(s)
- Eun-Jung Kim
- Department of Dental Anaesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Ji-Uk Yoon
- Department of Anaesthesia and Pain Medicine, School of Medicine, Pusan National University, Yangsan, Republic of Korea,Research institute for convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Cheul-Hong Kim
- Department of Dental Anaesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Ji-Young Yoon
- Department of Dental Anaesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea
| | - Joo-Young Kim
- Research institute for convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Hyang-Sook Kim
- Research institute for convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea
| | - Eun-Ji Choi
- Department of Dental Anaesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Yangsan, Republic of Korea,Research institute for convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, Republic of Korea,Eun-Ji Choi, Department of Dental Anaesthesia and Pain Medicine, School of Dentistry, Pusan National University, Dental Research Institute, Geumoro 20, Yangsan, Gyeongnam, 50612, Republic of Korea.
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12
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Teranishi M, Kurose T, Nakagawa K, Kawahara Y, Yuge L. Hypergravity enhances RBM4 expression in human bone marrow-derived mesenchymal stem cells and accelerates their differentiation into neurons. Regen Ther 2023; 22:109-114. [PMID: 36712961 PMCID: PMC9851867 DOI: 10.1016/j.reth.2022.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 12/05/2022] [Accepted: 12/29/2022] [Indexed: 01/18/2023] Open
Abstract
Introduction The regulation of stem cell differentiation is important in determining the quality of transplanted cells in regenerative medicine. Physical stimuli are involved in regulating stem cell differentiation, and in particular, research on the regulation of differentiation using gravity is an attractive choice. We have shown that microgravity is useful for maintaining undifferentiated mesenchymal stem cells (MSCs). However, the effects of hypergravity on the differentiation of MSCs, especially on neural differentiation related to neural regeneration, have not been elucidated. Methods We induced neural differentiation of human bone marrow-derived MSCs (hbMSCs) for 10 days under normal gravity (1G) or hypergravity (3G) conditions using a gravity controller, Gravite®. HbMSCs were collected, and cell number and viability were measured 3 and 10 days after induction. RNA was also extracted from the collected hbMSCs, and the expression of neuron-associated genes and regulator markers of neural differentiation was analyzed using real-time polymerase chain reaction (PCR). Additionally, we evaluated the NF-M-positive cell rate 10 days after induction using immunofluorescent staining. Results Neural gene expression and the NF-M-positive cell rate were increased in hbMSCs under the 3G condition 10 days after induction. mRNA expression of RNA binding motif protein 4 (RBM4) and pyruvate kinase M 1 (PKM1) in the 3G condition was also higher than that in the 1G group. Conclusions Hypergravity can enhance RBM4 and PKM1, promoting the neural differentiation of hbMSCs.
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Affiliation(s)
- Masataka Teranishi
- Division of Bio-Environmental Adaptation Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Tomoyuki Kurose
- Division of Bio-Environmental Adaptation Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kei Nakagawa
- Division of Bio-Environmental Adaptation Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | | | - Louis Yuge
- Division of Bio-Environmental Adaptation Sciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan,Space Bio-Laboratories Co. Ltd. Hiroshima, Japan,Corresponding author. Division of Bio-Environmental Adaptation Sciences, Graduate school of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8551, Japan. Fax: +81 82 257 5344.
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13
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Riester O, Laufer S, Deigner HP. Direct 3D printed biocompatible microfluidics: assessment of human mesenchymal stem cell differentiation and cytotoxic drug screening in a dynamic culture system. J Nanobiotechnology 2022; 20:540. [PMID: 36575530 PMCID: PMC9793564 DOI: 10.1186/s12951-022-01737-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 12/02/2022] [Indexed: 12/28/2022] Open
Abstract
BACKGROUND In vivo-mimicking conditions are critical in in vitro cell analysis to obtain clinically relevant results. The required conditions, comparable to those prevalent in nature, can be provided by microfluidic dynamic cell cultures. Microfluidics can be used to fabricate and test the functionality and biocompatibility of newly developed nanosystems or to apply micro- and nanoelectromechanical systems embedded in a microfluidic system. However, the use of microfluidic systems is often hampered by their accessibility, acquisition cost, or customization, especially for scientists whose primary research focus is not microfluidics. RESULTS Here we present a method for 3D printing that can be applied without special prior knowledge and sophisticated equipment to produce various ready-to-use microfluidic components with a size of 100 µm. Compared to other available methods, 3D printing using fused deposition modeling (FDM) offers several advantages, such as time-reduction and avoidance of sophisticated equipment (e.g., photolithography), as well as excellent biocompatibility and avoidance of toxic, leaching chemicals or post-processing (e.g., stereolithography). We further demonstrate the ease of use of the method for two relevant applications: a cytotoxicity screening system and an osteoblastic differentiation assay. To our knowledge, this is the first time an application including treatment, long-term cell culture and analysis on one chip has been demonstrated in a directly 3D-printed microfluidic chip. CONCLUSION The direct 3D printing method is tested and validated for various microfluidic components that can be combined on a chip depending on the specific requirements of the experiment. The ease of use and production opens up the potential of microfluidics to a wide range of users, especially in biomedical research. Our demonstration of its use as a cytotoxicity screening system and as an assay for osteoblastic differentiation shows the methods potential in the development of novel biomedical applications. With the presented method, we aim to disseminate microfluidics as a standard method in biomedical research, thus improving the reproducibility and transferability of results to clinical applications.
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Affiliation(s)
- Oliver Riester
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany ,grid.10392.390000 0001 2190 1447Institute of Pharmaceutical Sciences, Department of Pharmacy and Biochemistry, Eberhard-Karls-University Tuebingen, Auf Der Morgenstelle 8, 72076 Tübingen, Germany
| | - Stefan Laufer
- grid.10392.390000 0001 2190 1447Institute of Pharmaceutical Sciences, Department of Pharmacy and Biochemistry, Eberhard-Karls-University Tuebingen, Auf Der Morgenstelle 8, 72076 Tübingen, Germany ,Tuebingen Center for Academic Drug Discovery & Development (TüCAD2), 72076 Tübingen, Germany
| | - Hans-Peter Deigner
- grid.21051.370000 0001 0601 6589Institute of Precision Medicine, Furtwangen University, Jakob-Kienzle-Strasse 17, 78054 Villingen-Schwenningen, Germany ,grid.10392.390000 0001 2190 1447Faculty of Science, Eberhard-Karls-University Tuebingen, Auf Der Morgenstelle 8, 72076 Tübingen, Germany ,grid.418008.50000 0004 0494 3022EXIM Department, Fraunhofer Institute IZI (Leipzig), Schillingallee 68, 18057 Rostock, Germany
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14
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Zheng WV, Li Y, Xu Y, Zhou T, Li D, Cheng X, Xiong Y, Wang S, Chen Z. 22-kD growth hormone-induced nuclear GHR/STAT5/CyclinD1 signaling pathway plays an important role in promoting mesenchymal stem cell proliferation. Biofactors 2022; 48:67-85. [PMID: 34866251 DOI: 10.1002/biof.1805] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Revised: 09/27/2021] [Accepted: 10/19/2021] [Indexed: 11/10/2022]
Abstract
Growth hormone (GH) exhibited the important biological activities in the mesenchymal stem cell (MSCs). However, the cellular behavior and properties of GH/GHR in MSCs remain unclear. A series of experiments (such as confocal laser scanning microscope [CLSM] and Western-blot) were performed to systematically investigate the cellular behavior of GH/GHR in MSCs, and the results showed that GH/GHR not only internalized into the cytoplasm, but also transported into the cell nuclei of MSCs. Furthermore, we studied the molecular mechanism by which GH/GHR internalized into cell, and the results indicated that clathrin plays more important role in the process of GHR internalization. More importantly, it can be found that nuclear-targeted GHR has the important biological functions in MSCs, which could promote MSCs proliferation. We further revealed the molecular mechanism by which nuclear-localized GHR regulates MSCs proliferation, and found that nuclear-targeted GHR enhanced the phosphorylation of STAT5, and the activated STAT5 initiates the transcription of CyclinD1, after which, the complex of CyclinD1 and CDK4 further phosphorylates Rb, and the activated Rb releases E2F1, the released E2F1 ultimately realizes the biological function of GH promoting cell proliferation. In short, in the current study,we used MSCs as a model to study the cellular behavior and properties of GH/GHR, and found that GH/GHR can internalize into cell cytoplasm and transport into the cell nuclei. Further work showed that nuclear GHR could drive cell proliferation via GHR/STAT5/CyclinD1 signaling pathway. The current research has laid an important foundation for further study on the regulatory effect of GH on MSCs.
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Affiliation(s)
- Wei V Zheng
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Yaqin Li
- Department of Infectious Disease, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Yanwei Xu
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Tao Zhou
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Dezhi Li
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Xianyi Cheng
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Minimally Invasion Intervention, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Yu Xiong
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Minimally Invasion Intervention, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Shaobin Wang
- Health Management Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
| | - Zaizhong Chen
- Intervention and Cell Therapy Center, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
- Department of Minimally Invasion Intervention, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China
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15
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Hu X, Xia Z, Cai K. Recent advances of 3D hydrogel culture systems for mesenchymal stem cell-based therapy and cell behavior regulation. J Mater Chem B 2022; 10:1486-1507. [DOI: 10.1039/d1tb02537f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Mesenchymal stem cells (MSCs) have been increasingly recognized as resources for disease treatments and regenerative medicine. Meanwhile, the unique chemical and physical properties of hydrogels provide innate advantages to achieve...
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16
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MicroRNA Hsa-Let-7b Regulates the Osteogenic Differentiation of Human Periodontal Ligament Stem Cells by Targeting CTHRC1. Stem Cells Int 2021; 2021:5791181. [PMID: 34950211 PMCID: PMC8692051 DOI: 10.1155/2021/5791181] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 11/23/2021] [Indexed: 01/23/2023] Open
Abstract
Let-7 miRNA family has been proved as a key regulator of mesenchymal stem cells' (MSCs') biological features. However, whether let-7b could affect the differentiation or proliferation of periodontal ligament stem cells (PDLSCs) is still unknown. Here, we found that the expression of hsa-let-7b was visibly downregulated after mineralization induction of PDLSCs. After transfected with hsa-let-7b mimics or inhibitor reagent, the proliferation ability of PDLSCs was detected by cell counting kit-8 (CCK-8), flow cytometry, and 5-ethynyl-2-deoxyuridine (EdU) assay. On the other hand, the osteogenic differentiation capacity was detected by alkaline phosphatase (ALP) staining and activity, alizarin red staining, Western blot, and quantitative real-time reverse-transcription polymerase chain reaction (qRT-PCR). We verified that hsa-let-7b did not significantly impact the proliferation ability of PDLSCs, but it could curb the osteogenic differentiation of PDLSCs. Besides, we predicted CTHRC1 acts as the downstream gene of hsa-let-7b to affect this process. Moreover, the combination of CTHRC1 and hsa-let-7b was verified by dual luciferase reporter assay. Our results demonstrated that the osteogenic differentiation of PDLSCs was enhanced after inhibiting hsa-let-7b, while was weakened after cotransfection with Si-CTHRC1. Collectively, hsa-let-7b can repress the osteogenic differentiation of PDLSCs by regulating CTHRC1.
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17
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Sararols P, Stévant I, Neirijnck Y, Rebourcet D, Darbey A, Curley MK, Kühne F, Dermitzakis E, Smith LB, Nef S. Specific Transcriptomic Signatures and Dual Regulation of Steroidogenesis Between Fetal and Adult Mouse Leydig Cells. Front Cell Dev Biol 2021; 9:695546. [PMID: 34262907 PMCID: PMC8273516 DOI: 10.3389/fcell.2021.695546] [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: 04/15/2021] [Accepted: 06/08/2021] [Indexed: 12/20/2022] Open
Abstract
Leydig cells (LC) are the main testicular androgen-producing cells. In eutherian mammals, two types of LCs emerge successively during testicular development, fetal Leydig cells (FLCs) and adult Leydig cells (ALCs). Both display significant differences in androgen production and regulation. Using bulk RNA sequencing, we compared the transcriptomes of both LC populations to characterize their specific transcriptional and functional features. Despite similar transcriptomic profiles, a quarter of the genes show significant variations in expression between FLCs and ALCs. Non-transcriptional events, such as alternative splicing was also observed, including a high rate of intron retention in FLCs compared to ALCs. The use of single-cell RNA sequencing data also allowed the identification of nine FLC-specific genes and 50 ALC-specific genes. Expression of the corticotropin-releasing hormone 1 (Crhr1) receptor and the ACTH receptor melanocortin type 2 receptor (Mc2r) specifically in FLCs suggests a dual regulation of steroidogenesis. The androstenedione synthesis by FLCs is stimulated by luteinizing hormone (LH), corticotrophin-releasing hormone (CRH), and adrenocorticotropic hormone (ACTH) whereas the testosterone synthesis by ALCs is dependent exclusively on LH. Overall, our study provides a useful database to explore LC development and functions.
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Affiliation(s)
- Pauline Sararols
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Isabelle Stévant
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Yasmine Neirijnck
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Diane Rebourcet
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, Australia
| | - Annalucia Darbey
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, Australia
| | - Michael K Curley
- Medical Research Council Centre for Reproductive Health, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Françoise Kühne
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland
| | - Emmanouil Dermitzakis
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Faculty of Medicine, Institute of Genetics and Genomics of Geneva (iGE3), Geneva, Switzerland
| | - Lee B Smith
- College of Engineering, Science and Environment, The University of Newcastle, Callaghan, NSW, Australia.,Medical Research Council Centre for Reproductive Health, The Queen's Medical Research Institute, The University of Edinburgh, Edinburgh, United Kingdom
| | - Serge Nef
- Department of Genetic Medicine and Development, Faculty of Medicine, University of Geneva, Geneva, Switzerland
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18
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Jeong JE, Seol B, Kim HS, Kim JY, Cho YS. Exploration of Alternative Splicing Events in Mesenchymal Stem Cells from Human Induced Pluripotent Stem Cells. Genes (Basel) 2021; 12:genes12050737. [PMID: 34068253 PMCID: PMC8153164 DOI: 10.3390/genes12050737] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 05/12/2021] [Accepted: 05/12/2021] [Indexed: 12/14/2022] Open
Abstract
Although comparative genome-wide transcriptomic analysis has provided insight into the biology of human induced pluripotent stem cell-derived mesenchymal stem cells (iMSCs), the distinct alternative splicing (AS) signatures of iMSCs remain elusive. Here, we performed Illumina RNA sequencing analysis to characterize AS events in iMSCs compared with tissue-derived MSCs. A total of 4586 differentially expressed genes (|FC| > 2) were identified between iMSCs and umbilical cord blood-derived MSCs (UCB-MSCs), including 2169 upregulated and 2417 downregulated genes. Of these, 164 differentially spliced events (BF > 20) in 112 genes were identified between iMSCs and UCB-MSCs. The predominant type of AS found in iMSCs was skipped exons (43.3%), followed by retained introns (19.5%), alternative 3′ (15.2%) and 5′ (12.8%) splice sites, and mutually exclusive exons (9.1%). Functional enrichment analysis showed that the differentially spliced genes (|FC| > 2 and BF > 20) were mainly enriched in functions associated with focal adhesion, extracellular exosomes, extracellular matrix organization, cell adhesion, and actin binding. Splice isoforms of selected genes including TRPT1, CNN2, and AP1G2, identified in sashimi plots, were further validated by RT-PCR analysis. This study provides valuable insight into the biology of iMSCs and the translation of mechanistic understanding of iMSCs into therapeutic applications.
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Affiliation(s)
- Ji-Eun Jeong
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
| | - Binna Seol
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
| | - Han-Seop Kim
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
| | - Jae-Yun Kim
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
- Department of Bioscience, KRIBB School, University of Science & Technology, 113 Gwahak-ro, Yuseong-gu, Daejeon 34113, Korea
| | - Yee-Sook Cho
- Stem Cell Research Laboratory, Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology, 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Korea; (J.-E.J.); (B.S.); (H.-S.K.); (J.-Y.K.)
- Department of Bioscience, KRIBB School, University of Science & Technology, 113 Gwahak-ro, Yuseong-gu, Daejeon 34113, Korea
- Correspondence: ; Tel.: +82-42-860-4479; Fax: +82-42-860-4608
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19
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Cai Z, Lu C, He J, Liu L, Zou Y, Zhang Z, Zhu Z, Ge X, Wu A, Jiang T, Zheng H, Peng Y. Identification and characterization of circRNAs encoded by MERS-CoV, SARS-CoV-1 and SARS-CoV-2. Brief Bioinform 2021; 22:1297-1308. [PMID: 33757279 PMCID: PMC7799257 DOI: 10.1093/bib/bbaa334] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/28/2020] [Accepted: 10/23/2020] [Indexed: 12/17/2022] Open
Abstract
The life-threatening coronaviruses MERS-CoV, SARS-CoV-1 and SARS-CoV-2 (SARS-CoV-1/2) have caused and will continue to cause enormous morbidity and mortality to humans. Virus-encoded noncoding RNAs are poorly understood in coronaviruses. Data mining of viral-infection-related RNA-sequencing data has resulted in the identification of 28 754, 720 and 3437 circRNAs encoded by MERS-CoV, SARS-CoV-1 and SARS-CoV-2, respectively. MERS-CoV exhibits much more prominent ability to encode circRNAs in all genomic regions than those of SARS-CoV-1/2. Viral circRNAs typically exhibit low expression levels. Moreover, majority of the viral circRNAs exhibit expressions only in the late stage of viral infection. Analysis of the competitive interactions of viral circRNAs, human miRNAs and mRNAs in MERS-CoV infections reveals that viral circRNAs up-regulated genes related to mRNA splicing and processing in the early stage of viral infection, and regulated genes involved in diverse functions including cancer, metabolism, autophagy, viral infection in the late stage of viral infection. Similar analysis in SARS-CoV-2 infections reveals that its viral circRNAs down-regulated genes associated with metabolic processes of cholesterol, alcohol, fatty acid and up-regulated genes associated with cellular responses to oxidative stress in the late stage of viral infection. A few genes regulated by viral circRNAs from both MERS-CoV and SARS-CoV-2 were enriched in several biological processes such as response to reactive oxygen and centrosome localization. This study provides the first glimpse into viral circRNAs in three deadly coronaviruses and would serve as a valuable resource for further studies of circRNAs in coronaviruses.
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Affiliation(s)
- Zena Cai
- College of Biology, Hunan University
| | - Congyu Lu
- College of Biology, Hunan University
| | | | - Li Liu
- Hunan Yuelu mountain data science and Technology Research Institute Co., Ltd, Changsha, China
| | | | | | | | - Xingyi Ge
- College of Biology, Hunan University
| | - Aiping Wu
- Suzhou Institute of Systems Medicine
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20
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Park JW, Fu S, Huang B, Xu RH. Alternative splicing in mesenchymal stem cell differentiation. Stem Cells 2020; 38:1229-1240. [PMID: 32627865 PMCID: PMC7586970 DOI: 10.1002/stem.3248] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 06/03/2020] [Accepted: 06/11/2020] [Indexed: 01/07/2023]
Abstract
The differentiation and maturation of mesenchymal stem cells (MSCs) to mesodermal and other lineages are known to be controlled by various extrinsic and intrinsic signals. The dysregulation of the MSC differentiation balance has been linked to several pathophysiological conditions, including obesity and osteoporosis. Previous research of the molecular mechanisms governing MSC differentiation has mostly focused on transcriptional regulation. However, recent findings are revealing the underrated role of alternative splicing (AS) in MSC differentiation and functions. In this review, we discuss recent progress in elucidating the regulatory roles of AS in MSC differentiation. We catalogue and highlight the key AS events that modulate MSC differentiation to major osteocytes, chondrocytes, and adipocytes, and discuss the regulatory mechanisms by which AS is regulated.
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Affiliation(s)
- Jung Woo Park
- Center for Reproduction, Development, and Aging and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, People's Republic of China
| | - Siyi Fu
- Center for Reproduction, Development, and Aging and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, People's Republic of China
| | - Borong Huang
- Center for Reproduction, Development, and Aging and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, People's Republic of China
| | - Ren-He Xu
- Center for Reproduction, Development, and Aging and Institute of Translational Medicine, Faculty of Health Sciences, University of Macau, Macau, People's Republic of China
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