1
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Hiew VV, Teoh PL. Differential gene expression of Wharton's jelly-derived mesenchymal cells mediated by graphene oxide in basal and osteo-induced media. Mol Biol Rep 2024; 51:383. [PMID: 38433142 DOI: 10.1007/s11033-024-09324-9] [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: 07/20/2023] [Accepted: 02/06/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Graphene oxide (GO) is widespread in scaffold engineering owing to its extraordinary properties such as multiple oxygen functional groups, high hydrophilicity ability and biocompatibility. It is known to promote differentiation in mesenchymal stem cells, but concomitant comparison of its modulation on the expression profiles of Wharton's jelly (WJ)-MSC surface markers, lineage differentiation, and epigenetic regulatory genes in basal and induced condition are still lacking. Unraveling the fundamental mechanisms is essential for the effective utilization of WJ-MSCs incorporated with GO in therapy. This study aims to explore the unique gene expression profiles and epigenetic characteristics of WJ-MSCs influenced by GO. METHODS AND RESULTS The characterized GO-coated coverslip served as a substrate for culturing WJ-MSCs. In addition to investigating the impact of GO on cell proliferation and differentiation, we conducted a gene expression study using PCR array, while epigenetic control was assessed through bisulfite sequencing and Western blot analysis. Our findings indicate that the presence of GO maintained the proliferation and survival of WJ-MSCs. In the absence of induction, GO led to minor lipid and glycosaminoglycan deposition in WJ-MSCs. This was evidenced by the sustained expression of pluripotency and lineage-specific genes, demethylation at the OCT4 promoter, and a decrease in H3K9 methylation. In osteo-induced condition, the occurrence of osteogenesis appeared to be guided by BMP/TGF and ERK pathway activation, accompanied by the upregulation of osteogenic-related genes and downregulation of DNMT3b. CONCLUSIONS GO in osteo-induced condition create a favorable microenvironment that promotes the osteogenesis of WJ-MSCs by influencing genetic and epigenetic controls. This helps in advancing our knowledge on the use of GO as priming platform and WJ-MSCs an alternate source for bone repair and regeneration.
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Affiliation(s)
- Vun Vun Hiew
- Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia
| | - Peik Lin Teoh
- Biotechnology Research Institute, Universiti Malaysia Sabah, Jalan UMS, 88400, Kota Kinabalu, Sabah, Malaysia.
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2
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Singh S, Budiman T, Redmond D, Gupta V. Modulation of canonical Wnt signaling regulates peribiliary mesenchymal identity during homeostasis and injury. Hepatol Commun 2024; 8:e0368. [PMID: 38251878 PMCID: PMC10805418 DOI: 10.1097/hc9.0000000000000368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2023] [Accepted: 12/10/2023] [Indexed: 01/23/2024] Open
Abstract
BACKGROUND The matrix and associated mesenchyme of the extrahepatic bile ducts are distinct, which could drive diseases with a predilection for these ducts, such as primary sclerosing cholangitis. We aimed to understand the molecular drivers of peribiliary mesenchymal cell (PMC) identity in the extrahepatic bile ducts and dissect how this changed in the context of injury using an entirely in vivo approach with transcriptomic analysis. METHODS AND RESULTS Single-cell sequencing with a receptor-ligand analysis showed that PMCs had the most interactions with surrounding cells. Wnt4, Wnt5a, and Wnt7b were identified as the major ligands secreted from PMCs and cholangiocytes that interacted in both paracrine and autocrine fashion. Bile duct ligation caused an increase in all 3 Wingless/Integrated ligands and Axin2 with an associated increase in the transcription factors T-box transcription factor (Tbx)2 and Tbx3. Conversely, Indian hedgehog secretion decreased without an associated decrease in hedgehog signaling effectors. Loss of smoothened within PMCs did not impact hedgehog signaling effectors or cellular identity, whereas smoothened gain of function led to myofibroblast transdifferentiation with upregulation of Tbx2 and Tbx3 without injury. Loss of β-catenin caused a decrease in expression of all 3 Gli transcription factors and associated mesenchymal gene expression, which was phenocopied with compound Gli2 and Gli3 loss in uninjured PMCs. With injury, loss of β-catenin resulted in decreased myofibroblast transdifferentiation with reduced Tbx2 and Tbx3 expression. CONCLUSIONS Our results show how modulation of canonical Wingless/Integrated signaling in PMCs is important for regulating basal mesenchymal gene expression and initiating a myogenic gene transcriptional program during injury. They also highlight reciprocating interactions between the hedgehog and Wingless/Integrated signaling pathways within PMCs.
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Affiliation(s)
- Serrena Singh
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
| | - Tifanny Budiman
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
| | - David Redmond
- Department of Medicine, Division of Regenerative Medicine, Ansary Stem Cell Institute, Weill Cornell Medicine, New York, New York, USA
| | - Vikas Gupta
- Department of Internal Medicine, Section of Digestive Diseases, Yale University School of Medicine, New Haven, Connecticut, USA
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3
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Yang Z, Wu Y, Neo SH, Yang D, Jeon H, Tee CA, Denslin V, Lin DJ, Lee EH, Boyer LA, Han J. Size-Based Microfluidic-Enriched Mesenchymal Stem Cell Subpopulations Enhance Articular Cartilage Repair. Am J Sports Med 2024; 52:503-515. [PMID: 38186352 DOI: 10.1177/03635465231214431] [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] [Indexed: 01/09/2024]
Abstract
BACKGROUND The functional heterogeneity of culture-expanded mesenchymal stem cells (MSCs) has hindered the clinical application of MSCs. Previous studies have shown that MSC subpopulations with superior chondrogenic capacity can be isolated using a spiral microfluidic device based on the principle of inertial cell focusing. HYPOTHESIS The delivery of microfluidic-enriched chondrogenic MSCs that are consistent in size and function will overcome the challenge of the functional heterogeneity of expanded MSCs and will significantly improve MSC-based cartilage repair. STUDY DESIGN Controlled laboratory study. METHODS A next-generation, fully automated multidimensional double spiral microfluidic device was designed to provide more refined and efficient isolation of MSC subpopulations based on size. Analysis of in vitro chondrogenic potential and RNA sequencing was performed on size-sorted MSC subpopulations. In vivo cartilage repair efficacy was demonstrated in an osteochondral injury model in 12-week-old rats. Defects were implanted with MSC subpopulations (n = 6 per group) and compared with those implanted with unsegregated MSCs (n = 6). Osteochondral repair was assessed at 6 and 12 weeks after surgery by histological, micro-computed tomography, and mechanical analysis. RESULTS A chondrogenic MSC subpopulation was efficiently isolated using the multidimensional double spiral device. RNA sequencing revealed distinct transcriptomic profiles and identified differential gene expression between subpopulations. The delivery of a chondrogenic MSC subpopulation resulted in improved cartilage repair, as indicated by histological scoring, the compression modulus, and micro-computed tomography of the subchondral bone. CONCLUSION We have established a rapid, label-free, and reliable microfluidic protocol for more efficient size-based enrichment of a chondrogenic MSC subpopulation. Our proof-of-concept in vivo study demonstrates the enhanced cartilage repair efficacy of these enriched chondrogenic MSCs. CLINICAL RELEVANCE The delivery of microfluidic-enriched chondrogenic MSCs that are consistent in size and function can overcome the challenge of the functional heterogeneity of expanded MSCs, resulting in significant improvement in MSC-based cartilage repair. The availability of such rapid, label-free enriched chondrogenic MSCs can enable better cell therapy products for cartilage repair with improved treatment outcomes.
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Affiliation(s)
- Zheng Yang
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
- Department of Orthopaedic Surgery, National University of Singapore, Singapore, Singapore
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Yingnan Wu
- Department of Orthopaedic Surgery, National University of Singapore, Singapore, Singapore
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Shu Hui Neo
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
| | - Dahou Yang
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
| | - Hyungkook Jeon
- Department of Manufacturing Systems and Design Engineering, Seoul National University of Science and Technology, Seoul, Republic of Korea
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Ching Ann Tee
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
| | - Vinitha Denslin
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Daryl Jimian Lin
- Department of Orthopaedic Surgery, National University of Singapore, Singapore, Singapore
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Eng Hin Lee
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
- Department of Orthopaedic Surgery, National University of Singapore, Singapore, Singapore
- NUS Tissue Engineering Program, Life Sciences Institute, National University of Singapore, Singapore, Singapore
| | - Laurie A Boyer
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
| | - Jongyoon Han
- Critical Analytics for Manufacturing Personalized-Medicine Interdisciplinary Research Group, Singapore-MIT Alliance for Research and Technology, Singapore, Singapore
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
- Department of Electrical Engineering and Computer Science, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
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4
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Peri SS, Narayanaa Y K, Hubert TD, Rajaraman R, Arfuso F, Sundaram S, Archana B, Warrier S, Dharmarajan A, Perumalsamy LR. Navigating Tumour Microenvironment and Wnt Signalling Crosstalk: Implications for Advanced Cancer Therapeutics. Cancers (Basel) 2023; 15:5847. [PMID: 38136392 PMCID: PMC10741643 DOI: 10.3390/cancers15245847] [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: 10/27/2023] [Revised: 12/06/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023] Open
Abstract
Cancer therapeutics face significant challenges due to drug resistance and tumour recurrence. The tumour microenvironment (TME) is a crucial contributor and essential hallmark of cancer. It encompasses various components surrounding the tumour, including intercellular elements, immune system cells, the vascular system, stem cells, and extracellular matrices, all of which play critical roles in tumour progression, epithelial-mesenchymal transition, metastasis, drug resistance, and relapse. These components interact with multiple signalling pathways, positively or negatively influencing cell growth. Abnormal regulation of the Wnt signalling pathway has been observed in tumorigenesis and contributes to tumour growth. A comprehensive understanding and characterisation of how different cells within the TME communicate through signalling pathways is vital. This review aims to explore the intricate and dynamic interactions, expressions, and alterations of TME components and the Wnt signalling pathway, offering valuable insights into the development of therapeutic applications.
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Affiliation(s)
- Shraddha Shravani Peri
- Department of Biomedical Sciences, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.P.); (K.N.Y.); (T.D.H.); (R.R.)
| | - Krithicaa Narayanaa Y
- Department of Biomedical Sciences, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.P.); (K.N.Y.); (T.D.H.); (R.R.)
| | - Therese Deebiga Hubert
- Department of Biomedical Sciences, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.P.); (K.N.Y.); (T.D.H.); (R.R.)
| | - Roshini Rajaraman
- Department of Biomedical Sciences, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.P.); (K.N.Y.); (T.D.H.); (R.R.)
| | - Frank Arfuso
- School of Human Sciences, The University of Western Australia, Nedlands, WA 6009, Australia;
| | - Sandhya Sundaram
- Department of Pathology, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.); (B.A.)
| | - B. Archana
- Department of Pathology, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.); (B.A.)
| | - Sudha Warrier
- Department of Biotechnology, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India;
| | - Arun Dharmarajan
- Department of Biomedical Sciences, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.P.); (K.N.Y.); (T.D.H.); (R.R.)
- School of Human Sciences, The University of Western Australia, Nedlands, WA 6009, Australia;
- Curtin Health Innovation Research Institute, Curtin University, Perth, WA 6102, Australia
- Curtin Medical School, Curtin University, Perth, WA 6102, Australia
| | - Lakshmi R. Perumalsamy
- Department of Biomedical Sciences, Faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India; (S.S.P.); (K.N.Y.); (T.D.H.); (R.R.)
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5
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Mankuzhy P, Dharmarajan A, Perumalsamy LR, Sharun K, Samji P, Dilley RJ. The role of Wnt signaling in mesenchymal stromal cell-driven angiogenesis. Tissue Cell 2023; 85:102240. [PMID: 37879288 DOI: 10.1016/j.tice.2023.102240] [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: 05/13/2023] [Revised: 09/28/2023] [Accepted: 10/11/2023] [Indexed: 10/27/2023]
Abstract
Development, growth, and remodeling of blood vessels occur through an intricate process involving cell differentiation, proliferation, and rearrangement by cell migration under the direction of various signaling pathways. Recent reports highlight that resident and exogenous mesenchymal stromal cells (MSCs) have the potential to regulate the neovascularization process through paracrine secretion of proangiogenic factors. Recent research has established that the vasculogenic potential of MSCs is regulated by several signaling pathways, including the Wnt signaling pathway, and their interplay. These findings emphasize the complex nature of the vasculogenic process and underscore the importance of understanding the underlying molecular mechanisms for the development of effective cell-based therapies in regenerative medicine. This review provides an updated briefing on the canonical and non-canonical Wnt signaling pathways and summarizes the recent reports of both in vitro and in vivo studies with the involvement of MSCs of various sources in the vasculogenic process mediated by Wnt signaling pathways. Here we outline the current understanding of the plausible role of the Wnt signaling pathway, specifically in MSC-regulated angiogenesis.
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Affiliation(s)
- Pratheesh Mankuzhy
- Department of Surgery and Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, 6009 Perth, Australia; College of Veterinary and Animal Sciences - Mannuthy, Kerala Veterinary and Animal Sciences University, Pookode, Wayanad, Kerala 673576 India.
| | - Arun Dharmarajan
- Department of Biomedical Sciences, Sri Ramachandra faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, India; School of Pharmacy and Biomedical Sciences, Curtin University, Bentley, Perth, Western Australia, Australia; School of Human Sciences, Faculty of Life Sciences, University of Western Australia, 6009 Perth, Australia
| | - Lakshmi R Perumalsamy
- Department of Biomedical Sciences, Sri Ramachandra faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, India
| | - Khan Sharun
- Division of Surgery, ICAR-Indian Veterinary Research Institute, Izatnagar, Bareilly, Uttar Pradesh, India
| | - Priyanka Samji
- Department of Biomedical Sciences, Sri Ramachandra faculty of Biomedical Sciences, Technology and Research, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, India
| | - Rodney J Dilley
- Department of Surgery and Centre for Medical Research, Faculty of Health and Medical Sciences, The University of Western Australia, 6009 Perth, Australia
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6
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Azadian S, Doustmohammadi A, Naseri M, Khodarahmi M, Arab SS, Yazdanifar M, Zahiri J, Lewis NE. Reconstructing the cell-cell interaction network among mouse immune cells. Biotechnol Bioeng 2023; 120:2756-2764. [PMID: 37227044 PMCID: PMC10524935 DOI: 10.1002/bit.28431] [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: 04/24/2023] [Accepted: 05/01/2023] [Indexed: 05/26/2023]
Abstract
Intercellular interactions and cell-cell communication are critical to regulating cell functions, especially in normal immune cells and immunotherapies. Ligand-receptor pairs mediating these cell-cell interactions can be identified using diverse experimental and computational approaches. Here, we reconstructed the intercellular interaction network between Mus musculus immune cells using publicly available receptor-ligand interaction databases and gene expression data from the immunological genome project. This reconstructed network accounts for 50,317 unique interactions between 16 cell types between 731 receptor-ligand pairs. Analysis of this network shows that cells of hematopoietic lineages use fewer communication pathways for interacting with each other, while nonhematopoietic stromal cells use the most network communications. We further observe that the WNT, BMP, and LAMININ pathways are the most significant contributors to the overall number of cell-cell interactions among the various pathways in the reconstructed communication network. This resource will enable the systematic analysis of normal and pathologic immune cell interactions, along with the study of emerging immunotherapies.
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Affiliation(s)
- Somayeh Azadian
- Bioinformatics and Computational Omics Lab (BioCOOL), Department of Biophysics, Faculty of biological sciences, Tarbiat modares University (TMU), P.O.Box: 14115-111,Tehran, Iran
| | | | - Mohadeseh Naseri
- Institute of Infectious Diseases and Infection Control, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany
| | | | - Seyed Shahriar Arab
- Department of Biophysics, Faculty of Biological Sciences, Tarbiat Modares University (TMU), P.O.Box: 14115-111, Tehran, Iran
| | - Mahboubeh Yazdanifar
- Department of Pediatrics, Stem Cell Transplantation and Regenerative Medicine, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Javad Zahiri
- Department of Neuroscience, University of California San Diego, San Diego, CA 92093, USA
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
| | - Nathan E. Lewis
- Department of Pediatrics, University of California San Diego, La Jolla, CA 92093, USA
- Department of Bioengineering, University of California San Diego, La Jolla, CA 92093, USA
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7
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Doherty L, Wan M, Peterson A, Youngstrom DW, King JS, Kalajzic I, Hankenson KD, Sanjay A. Wnt-associated adult stem cell marker Lgr6 is required for osteogenesis and fracture healing. Bone 2023; 169:116681. [PMID: 36708855 PMCID: PMC10015414 DOI: 10.1016/j.bone.2023.116681] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/18/2023] [Accepted: 01/20/2023] [Indexed: 01/26/2023]
Abstract
Despite the remarkable regenerative capacity of skeletal tissues, nonunion of bone and failure of fractures to heal properly presents a significant clinical concern. Stem and progenitor cells are present in bone and become activated following injury; thus, elucidating mechanisms that promote adult stem cell-mediated healing is important. Wnt-associated adult stem marker Lgr6 is implicated in the regeneration of tissues with well-defined stem cell niches in stem cell-reliant organs. Here, we demonstrate that Lgr6 is dynamically expressed in osteoprogenitors in response to fracture injury. We used an Lgr6-null mouse model and found that Lgr6 expression is necessary for maintaining bone volume and efficient postnatal bone regeneration in adult mice. Skeletal progenitors isolated from Lgr6-null mice have reduced colony-forming potential and reduced osteogenic differentiation capacity due to attenuated cWnt signaling. Lgr6-null mice consist of a lower proportion of self-renewing stem cells. In response to fracture injury, Lgr6-null mice have a deficiency in the proliferation of periosteal progenitors and reduced ALP activity. Further, analysis of the bone regeneration phase and remodeling phase of fracture healing in Lgr6-null mice showed impaired endochondral ossification and decreased mineralization. We propose that in contrast to not being required for successful skeletal development, Lgr6-positive cells have a direct role in endochondral bone repair.
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Affiliation(s)
- Laura Doherty
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, School of Medicine, USA; School of Dental Medicine, UConn Health, Farmington, CT 06030, USA
| | - Matthew Wan
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, School of Medicine, USA
| | - Anna Peterson
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, School of Medicine, USA
| | - Daniel W Youngstrom
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, School of Medicine, USA
| | - Justin S King
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, School of Medicine, USA
| | - Ivo Kalajzic
- School of Dental Medicine, UConn Health, Farmington, CT 06030, USA; Department of Reconstructive Sciences, School of Dental Medicine, UConn Health, Farmington, CT 06030, USA
| | - Kurt D Hankenson
- Department of Orthopaedic Surgery, School of Medicine, University of Michigan, Ann Arbor, MI 48109, USA
| | - Archana Sanjay
- Department of Orthopaedic Surgery, UConn Musculoskeletal Institute, School of Medicine, USA.
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8
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Kajabadi N, Low M, Jacques E, Lad H, Tung LW, Babaeijandaghi F, Gamu D, Zelada D, Wong CK, Chang C, Yi L, Wosczyna MN, Rando TA, Henríquez JP, Gibson WT, Gilbert PM, Rossi FMV. Activation of β-catenin in mesenchymal progenitors leads to muscle mass loss. Dev Cell 2023; 58:489-505.e7. [PMID: 36898377 DOI: 10.1016/j.devcel.2023.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 12/12/2022] [Accepted: 02/10/2023] [Indexed: 03/11/2023]
Abstract
Loss of muscle mass is a common manifestation of chronic disease. We find the canonical Wnt pathway to be activated in mesenchymal progenitors (MPs) from cancer-induced cachectic mouse muscle. Next, we induce β-catenin transcriptional activity in murine MPs. As a result, we observe expansion of MPs in the absence of tissue damage, as well as rapid loss of muscle mass. Because MPs are present throughout the organism, we use spatially restricted CRE activation and show that the induction of tissue-resident MP activation is sufficient to induce muscle atrophy. We further identify increased expression of stromal NOGGIN and ACTIVIN-A as key drivers of atrophic processes in myofibers, and we verify their expression by MPs in cachectic muscle. Finally, we show that blocking ACTIVIN-A rescues the mass loss phenotype triggered by β-catenin activation in MPs, confirming its key functional role and strengthening the rationale for targeting this pathway in chronic disease.
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Affiliation(s)
- Nasim Kajabadi
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Marcela Low
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada; Carrera de Química y Farmacia, Facultad de Medicina y Ciencia, Universidad San Sebastián, General Lagos 1163, 5090000 Valdivia, Chile
| | - Erik Jacques
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Heta Lad
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada
| | - Lin Wei Tung
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Farshad Babaeijandaghi
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Daniel Gamu
- BC Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC V5Z 4H4, Canada; Department of Medical Genetics, University of British Columbia, C201, 4500 Oak Street, Vancouver, BC V6H 3N1, Canada
| | - Diego Zelada
- Neuromuscular Studies Laboratory (NeSt Lab), GDeP, Department of Cell Biology, Universidad de Concepción, Concepción, Chile
| | - Chi Kin Wong
- BC Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC V5Z 4H4, Canada; Department of Medical Genetics, University of British Columbia, C201, 4500 Oak Street, Vancouver, BC V6H 3N1, Canada
| | - Chihkai Chang
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Lin Yi
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada
| | - Michael N Wosczyna
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA; Musculoskeletal Research Center, Bioengineering Institute, Department of Orthopedic Surgery, NYU Grossman School of Medicine, New York, NY 10010, USA; Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, CA 94305, USA; Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Thomas A Rando
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, CA 94305, USA; Broad Stem Cell Research Center, University of California, Los Angeles, Los Angeles, CA 90095, USA; Paul F. Glenn Center for the Biology of Aging, Stanford University School of Medicine, Stanford, CA 94305, USA; Center for Tissue Regeneration, Repair and Restoration, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA 94304, USA
| | - Juan Pablo Henríquez
- Neuromuscular Studies Laboratory (NeSt Lab), GDeP, Department of Cell Biology, Universidad de Concepción, Concepción, Chile
| | - William T Gibson
- BC Children's Hospital Research Institute, 938 West 28th Avenue, Vancouver, BC V5Z 4H4, Canada; Department of Medical Genetics, University of British Columbia, C201, 4500 Oak Street, Vancouver, BC V6H 3N1, Canada
| | - Penney M Gilbert
- Institute of Biomedical Engineering, University of Toronto, Toronto, ON M5S 3G9, Canada; Donnelly Centre for Cellular and Biomolecular Research, University of Toronto, Toronto, ON M5S 3E1, Canada; Department of Cell and Systems Biology, University of Toronto, Toronto, ON M5S 3G5, Canada
| | - Fabio M V Rossi
- School of Biomedical Engineering, University of British Columbia, 2222 Health Sciences Mall, Vancouver, BC V6T 1Z3, Canada.
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9
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Oveili E, Vafaei S, Bazavar H, Eslami Y, Mamaghanizadeh E, Yasamineh S, Gholizadeh O. The potential use of mesenchymal stem cells-derived exosomes as microRNAs delivery systems in different diseases. Cell Commun Signal 2023; 21:20. [PMID: 36690996 PMCID: PMC9869323 DOI: 10.1186/s12964-022-01017-9] [Citation(s) in RCA: 37] [Impact Index Per Article: 37.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 12/14/2022] [Indexed: 01/24/2023] Open
Abstract
MicroRNAs (miRNAs) are a group of small non-coding RNAs that regulate gene expression by targeting mRNA. Moreover, it has been shown that miRNAs expression are changed in various diseases, such as cancers, autoimmune disease, infectious diseases, and neurodegenerative Diseases. The suppression of miRNA function can be easily attained by utilizing of anti-miRNAs. In contrast, an enhancement in miRNA function can be achieved through the utilization of modified miRNA mimetics. The discovery of appropriate miRNA carriers in the body has become an interesting subject for investigators. Exosomes (EXOs) therapeutic efficiency and safety for transferring different cellular biological components to the recipient cell have attracted significant attention for their capability as miRNA carriers. Mesenchymal stem cells (MSCs) are recognized to generate a wide range of EXOs (MSC-EXOs), showing that MSCs may be effective for EXO generation in a clinically appropriate measure as compared to other cell origins. MSC-EXOs have been widely investigated because of their immune attributes, tumor-homing attributes, and flexible characteristics. In this article, we summarized the features of miRNAs and MSC-EXOs, including production, purification, and miRNA loading methods of MSC-EXOs, and the modification of MSC-EXOs for targeted miRNA delivery in various diseases. Video abstract.
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Affiliation(s)
- Elham Oveili
- Department of Pharmaceutical Science, Azad Islamic University of Medical Sciences, Tehran, Iran
| | - Somayeh Vafaei
- Department of Molecular Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Haniyeh Bazavar
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Yeganeh Eslami
- Faculty of Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Ehsan Mamaghanizadeh
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saman Yasamineh
- Department of Biotechnology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Omid Gholizadeh
- Infectious and Tropical Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Bacteriology and Virology, School of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran.
- Research Center for Clinical Virology, Tehran University of Medical Sciences, Tehran, Iran.
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10
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Marsh S, Constantin-Teodosiu T, Chapman V, Sottile V. In vitro Exposure to Inflammatory Mediators Affects the Differentiation of Mesenchymal Progenitors. Front Bioeng Biotechnol 2022; 10:908507. [PMID: 35813997 PMCID: PMC9257013 DOI: 10.3389/fbioe.2022.908507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 05/23/2022] [Indexed: 11/27/2022] Open
Abstract
The increasing prevalence of joint disease, and in particular osteoarthritis (OA), calls for novel treatment strategies to prevent disease progression in addition to existing approaches focusing mainly on the relief of pain symptoms. The inherent properties of mesenchymal stem cells (MSCs) make them an attractive candidate for novel tissue repair strategies, as these progenitors have the potential to differentiate into chondrocytes needed to replace degraded cartilage and can exert a modulating effect on the inflammatory environment of the diseased joint. However, the inflammatory environment of the joint may affect the ability of these cells to functionally integrate into the host tissue and exert beneficial effects, as hinted by a lack of success seen in clinical trials. Identification of factors and cell signalling pathways that influence MSC function is therefore critical for ensuring their success in the clinic, and here the effects of inflammatory mediators on bone marrow-derived MSCs were evaluated. Human MSCs were cultured in the presence of inflammatory mediators typically associated with OA pathology (IL-1β, IL-8, IL-10). While exposure to these factors did not produce marked effects on MSC proliferation, changes were observed when the mediators were added under differentiating conditions. Results collected over 21 days showed that exposure to IL-1β significantly affected the differentiation response of these cells exposed to chondrogenic and osteogenic conditions, with gene expression analysis indicating changes in MAPK, Wnt and TLR signalling pathways, alongside an increased expression of pro-inflammatory cytokines and cartilage degrading enzymes. These results highlight the value of MSCs as a preclinical model to study OA and provide a basis to define the impact of factors driving OA pathology on the therapeutic potential of MSCs for novel OA treatments.
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Affiliation(s)
- S. Marsh
- School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
| | - T. Constantin-Teodosiu
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - V. Chapman
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- School of Life Sciences, University of Nottingham, Nottingham, United Kingdom
| | - V. Sottile
- School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Pain Centre Versus Arthritis, University of Nottingham, Nottingham, United Kingdom
- Department of Molecular Medicine, University of Pavia, Pavia, Italy
- *Correspondence: V. Sottile,
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11
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The Impact of Graphene Oxide on Polycaprolactone PCL Surfaces: Antimicrobial Activity and Osteogenic Differentiation of Mesenchymal Stem Cell. COATINGS 2022. [DOI: 10.3390/coatings12060799] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In dentistry, bone regeneration requires osteoinductive biomaterial with antibacterial properties. Polycaprolactone (PCL) may be combined with different nanofillers including reduced graphene oxide (rGO). Here, the amount of rGO filler was defined to obtain a biocompatible and antibacterial PCL-based surface supporting the adhesion and differentiation of human mesenchymal stem cells (MSCs). Compounds carrying three different percentages of rGO were tested. Among all, the 5% rGO-PCL compound is the most bacteriostatic against Gram-positive bacteria. All scaffolds are biocompatible. MSCs adhere and proliferate on all scaffolds; however, 5% rGO-PCL surface supports the growth of cells and implements the expression of extracellular matrix components necessary to anchor the cells to the surface itself. Moreover, the 5% rGO-PCL surface has superior osteoinductive properties confirmed by the improved alkaline phosphatase activity, mineral matrix deposition, and osteogenic markers expression. These results suggest that 5% rGO-PCL has useful properties for bone tissue engineering purposes.
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12
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Kornsuthisopon C, Chansaenroj A, Manokawinchoke J, Tompkins KA, Pirarat N, Osathanon T. Non-canonical Wnt signaling participates in Jagged1-induced osteo/odontogenic differentiation in human dental pulp stem cells. Sci Rep 2022; 12:7583. [PMID: 35534526 PMCID: PMC9085777 DOI: 10.1038/s41598-022-11596-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Accepted: 04/06/2022] [Indexed: 11/09/2022] Open
Abstract
Osteoblast differentiation requires the interaction of various cell signaling pathways to modulate cell responses. Notch and Wnt signaling are among the crucial pathways that control numerous biological processes, including osteo/odontogenic differentiation. The aim of the present study was to examine the involvement of Wnt signaling in the Jagged1-induced osteo/odontogenic differentiation in human dental pulp stem cells (hDPSCs). The Wnt-related gene expression was analyzed from publicly available data of Jagged1-treated human dental pulp cells. The mRNA expression of Wnt ligands (WNT2B, WNT5A, WNT5B, and WNT16) and Wnt inhibitors (DKK1, DKK2, and SOST) were confirmed using real-time polymerase chain reaction. Among the Wnt ligands, WNT2B and WNT5A mRNA levels were upregulated after Jagged1 treatment. In contrast, the Wnt inhibitors DKK1, DKK2, and SOST mRNA levels were downregulated. Recombinant WNT5A, but not WNT2B, significantly promoted in vitro mineral deposition by hDPSCs. Wnt signaling inhibition using IWP-2, but not DKK1, inhibited Jagged1-induced alkaline phosphatase (ALP) activity, mineralization, and osteo/odontogenic marker gene expression in hDPSCs. In conclusion, Jagged1 promoted hDPSC osteo/odontogenic differentiation by modulating the non-canonical Wnt pathway.
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Affiliation(s)
- Chatvadee Kornsuthisopon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Rd. Pathumwan, Bangkok, 10330, Thailand
| | - Ajjima Chansaenroj
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Rd. Pathumwan, Bangkok, Bangkok, 10330, Thailand
| | - Jeeranan Manokawinchoke
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Rd. Pathumwan, Bangkok, 10330, Thailand
| | - Kevin A Tompkins
- Office of Research Affairs, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Nopadon Pirarat
- Department of Pathology, Faculty of Veterinary Science, Chulalongkorn University, 39 Henri-Dunant Rd. Pathumwan, Bangkok, Bangkok, 10330, Thailand.
| | - Thanaphum Osathanon
- Dental Stem Cell Biology Research Unit, Faculty of Dentistry, Chulalongkorn University, 34 Henri-Dunant Rd. Pathumwan, Bangkok, 10330, Thailand. .,Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Bangkok, 10330, Thailand.
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13
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Modulation of Mesenchymal Stem Cells for Enhanced Therapeutic Utility in Ischemic Vascular Diseases. Int J Mol Sci 2021; 23:ijms23010249. [PMID: 35008675 PMCID: PMC8745455 DOI: 10.3390/ijms23010249] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/23/2021] [Accepted: 12/24/2021] [Indexed: 12/12/2022] Open
Abstract
Mesenchymal stem cells are multipotent stem cells isolated from various tissue sources, including but not limited to bone marrow, adipose, umbilical cord, and Wharton Jelly. Although cell-mediated mechanisms have been reported, the therapeutic effect of MSCs is now recognized to be primarily mediated via paracrine effects through the secretion of bioactive molecules, known as the “secretome”. The regenerative benefit of the secretome has been attributed to trophic factors and cytokines that play neuroprotective, anti-angiogenic/pro-angiogenic, anti-inflammatory, and immune-modulatory roles. The advancement of autologous MSCs therapy can be hindered when introduced back into a hostile/disease environment. Barriers include impaired endogenous MSCs function, limited post-transplantation cell viability, and altered immune-modulatory efficiency. Although secretome-based therapeutics have gained popularity, many translational hurdles, including the heterogeneity of MSCs, limited proliferation potential, and the complex nature of the secretome, have impeded the progress. This review will discuss the experimental and clinical impact of restoring the functional capabilities of MSCs prior to transplantation and the progress in secretome therapies involving extracellular vesicles. Modulation and utilization of MSCs–secretome are most likely to serve as an effective strategy for promoting their ultimate success as therapeutic modulators.
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14
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Abdul Kareem N, Aijaz A, Jeschke MG. Stem Cell Therapy for Burns: Story so Far. Biologics 2021; 15:379-397. [PMID: 34511880 PMCID: PMC8418374 DOI: 10.2147/btt.s259124] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 06/24/2021] [Indexed: 12/12/2022]
Abstract
Burn injuries affect approximately 11 million people annually, with fatalities amounting up to 180,000. Burn injuries constitute a global health issue associated with high morbidity and mortality. Recent years have seen advancements in regenerative medicine for burn wound healing encompassing stem cells and stem cell-derived products such as exosomes and conditioned media with promising results compared to current treatment approaches. Sources of stem cells used for treatment vary ranging from hair follicle stem cells, embryonic stem cells, umbilical cord stem cells, to mesenchymal stem cells, such as adipose-derived mesenchymal stem cells, bone marrow-derived mesenchymal stem cells, and even stem cells harvested from discarded burn tissue. Stem cells utilize various pathways for wound healing, such as PI3/AKT pathway, WNT-β catenin pathway, TGF-β pathway, Notch and Hedgehog signaling pathway. Due to the paracrine signaling mechanism of stem cells, exosomes and conditioned media derived from stem cells have also been utilized in burn wound therapy. As exosomes and conditioned media are cell-free therapy and contain various biomolecules that facilitate wound healing, they are gaining popularity as an alternative treatment strategy with significant improvement in outcomes. The treatment is provided either as direct injections or embedded in a natural/artificial scaffold. This paper reviews in detail the different sources of stem cells, stem cell-derived products, their efficacy in burn wound repair, associated signaling pathways and modes of delivery for wound healing.
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Affiliation(s)
| | - Ayesha Aijaz
- Sunnybrook Research Institute, Toronto, ON, Canada
| | - Marc G Jeschke
- Sunnybrook Research Institute, Toronto, ON, Canada.,Department of Surgery, Division of Plastic Surgery, University of Toronto, Toronto, ON, Canada.,Department of Immunology, University of Toronto, Toronto, ON, Canada.,Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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15
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Nasser MI, Masood M, Adlat S, Gang D, Zhu S, Li G, Li N, Chen J, Zhu P. Mesenchymal stem cell-derived exosome microRNA as therapy for cardiac ischemic injury. Biomed Pharmacother 2021; 143:112118. [PMID: 34481378 DOI: 10.1016/j.biopha.2021.112118] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 08/21/2021] [Accepted: 08/24/2021] [Indexed: 12/17/2022] Open
Abstract
Cardiovascular diseases (CVD) are a significant cause of human health harm. In the past, stem cell therapy was reported to have functional defects, such as immune rejection, tumorigenicity, and infusion toxicity. Exosomes are extracellular vesicles with lipid bilayer membrane structure, containing proteins, lipids, mRNA, miRNA, DNA, and other molecules, which can mediate various biological functions such as immune response, inflammatory response, cell migration, and differentiation intercellular communication. Exosomal miRNAs have outstanding advantages in disease diagnosis and curative effect prediction. Likewise, paracrine factors could also mediate the main therapeutic effect of mesenchymal stem cells. Research has shown that mesenchymal stem cell-derived micro-exosomes, which may come from stem cells, accumulate in the ischemic tissue and regulate cell proliferation, apoptosis, inflammation, and angiogenesis sites of myocardial injury after being transplanted. This review reviewed the molecular mechanisms of exosomes and internal microRNAs derived from mesenchymal stem cells in cardiac ischemic injury repair.
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Affiliation(s)
- M I Nasser
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Muqaddas Masood
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Salah Adlat
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Deng Gang
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Shuoji Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Ge Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Nanbo Li
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Jimei Chen
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
| | - Ping Zhu
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510100, China.
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16
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Cranial Suture Mesenchymal Stem Cells: Insights and Advances. Biomolecules 2021; 11:biom11081129. [PMID: 34439795 PMCID: PMC8392244 DOI: 10.3390/biom11081129] [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: 06/12/2021] [Revised: 07/25/2021] [Accepted: 07/27/2021] [Indexed: 02/05/2023] Open
Abstract
The cranial bones constitute the protective structures of the skull, which surround and protect the brain. Due to the limited repair capacity, the reconstruction and regeneration of skull defects are considered as an unmet clinical need and challenge. Previously, it has been proposed that the periosteum and dura mater provide reparative progenitors for cranial bones homeostasis and injury repair. In addition, it has also been speculated that the cranial mesenchymal stem cells reside in the perivascular niche of the diploe, namely, the soft spongy cancellous bone between the interior and exterior layers of cortical bone of the skull, which resembles the skeletal stem cells’ distribution pattern of the long bone within the bone marrow. Not until recent years have several studies unraveled and validated that the major mesenchymal stem cell population of the cranial region is primarily located within the suture mesenchyme of the skull, and hence, they are termed suture mesenchymal stem cells (SuSCs). Here, we summarized the characteristics of SuSCs, this newly discovered stem cell population of cranial bones, including the temporospatial distribution pattern, self-renewal, and multipotent properties, contribution to injury repair, as well as the signaling pathways and molecular mechanisms associated with the regulation of SuSCs.
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17
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The Mechanism of the Yigutang-Mediated P13K/AKT/GSK-3 β Signal Pathway to Regulate Osteogenic Differentiation of Bone Marrow Stromal Stem Cells to Treat Osteoporosis. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:6699781. [PMID: 34239593 PMCID: PMC8233090 DOI: 10.1155/2021/6699781] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 06/07/2021] [Indexed: 11/18/2022]
Abstract
Objectives To explore the mechanism of Yigutang mediating the P13K/AKT/GSK-3β signaling pathway to regulate the osteogenic differentiation of bone marrow stromal stem cells to treat osteoporosis (OP). Methods Sixty 12-week-old female SD rats were randomly divided into the normal group, model group, Yigutang group, and estrogen group, with 15 cases in each group. In the model group, Yigutang group, and estrogen group, the ovaries on both sides were removed to construct the model, and the bone mineral density (BMD) of the upper metaphysis of the right femur of the rats in each group was detected. The left femur of each group of rats was removed, and the load-deformation curve of the left femur of each group of rats was calculated. The number of osteoblasts was observed by H&E staining. After extracting the right femurs of rats in each group, real-time fluorescent quantitative PCR and Western blot were used to detect the expression levels of genes and proteins related to the P13K/AKT/GSK-3β signaling pathway. Results The BMD of the upper metaphysis of the right femur in the Yigutang group and the estrogen group was significantly higher than that of the model group (P < 0.05), while both Yigutang and estrogen groups had no significant difference compared with the normal group (P > 0.05). In addition, there was no significant difference between the Yigutang group and the estrogen group (P > 0.05). The elastic load and maximum load of the Yigutang group and the estrogen group were significantly higher than the model group (P < 0.05), but both were lower than the normal group (P < 0.05). There was no significant difference between the Yigutang group and the estrogen group (P > 0.05). The number of osteoblasts in the Yigutang group and the estrogen group was significantly higher than the model group (P < 0.05), but both were lower than the normal group (P < 0.05). There was no significant difference between the Yigutang group and the estrogen group (P > 0.05). The P13K gene expression in the right femoral bone tissue of rats in the Yigutang group and the estrogen group was significantly higher than that in the model group (P < 0.05), and the AKT gene expression did not change significantly (P > 0.05). The gene expression of GSK-3β was significantly lower than that of the model group (P < 0.05). Compared with the normal group, the gene expression of P13K, AKT, and GSK-3β in the right femur bone tissue of the Yigutang group and the estrogen group did not change significantly (P > 0.05). The protein expression of P13K and P-AKt in the right femoral bone tissue of rats in the Yigutang group and the estrogen group was significantly higher than that of the model group (P < 0.05), and the protein expression of AKT did not change significantly (P > 0.05). The protein expression of GSK-3β was significantly lower than the model group (P < 0.05). Compared with the normal group, the protein expression of P13K, AKT, P-AKt, and GSK-3β in the right femoral bone tissue of the Yigutang group and the estrogen group did not change significantly (P > 0.05). Conclusions Yigutang can regulate the differentiation of bone marrow stromal stem cells into osteoblasts, which may be achieved by regulating the P13K/AKT/GSK-3β signaling pathway.
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18
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Hassanzadeh A, Rahman HS, Markov A, Endjun JJ, Zekiy AO, Chartrand MS, Beheshtkhoo N, Kouhbanani MAJ, Marofi F, Nikoo M, Jarahian M. Mesenchymal stem/stromal cell-derived exosomes in regenerative medicine and cancer; overview of development, challenges, and opportunities. Stem Cell Res Ther 2021; 12:297. [PMID: 34020704 PMCID: PMC8138094 DOI: 10.1186/s13287-021-02378-7] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Accepted: 05/10/2021] [Indexed: 12/13/2022] Open
Abstract
Recently, mesenchymal stem/stromal cells (MSCs) and their widespread biomedical applications have attracted great consideration from the scientific community around the world. However, reports have shown that the main populations of the transplanted MSCs are trapped in the liver, spleen, and lung upon administration, highlighting the importance of the development of cell-free therapies. Concerning rising evidence suggesting that the beneficial effects of MSC therapy are closely linked to MSC-released components, predominantly MSC-derived exosomes, the development of an MSC-based cell-free approach is of paramount importance. The exosomes are nano-sized (30100nm) lipid bilayer membrane vesicles, which are typically released by MSCs and are found in different body fluids. They include various bioactive molecules, such as messenger RNA (mRNA), microRNAs, proteins, and bioactive lipids, thus showing pronounced therapeutic competence for tissues recovery through the maintenance of their endogenous stem cells, the enhancement of regenerative phenotypic traits, inhibition of apoptosis concomitant with immune modulation, and stimulation of the angiogenesis. Conversely, the specific roles of MSC exosomes in the treatment of various tumors remain challenging. The development and clinical application of novel MSC-based cell-free strategies can be supported by better understanding their mechanisms, classifying the subpopulation of exosomes, enhancing the conditions of cell culture and isolation, and increasing the production of exosomes along with engineering exosomes to deliver drugs and therapeutic molecules to the target sites. In the current review, we deliver a brief overview of MSC-derived exosome biogenesis, composition, and isolation methods and discuss recent investigation regarding the therapeutic potential of MSC exosomes in regenerative medicine accompanied by their double-edged sword role in cancer.
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Affiliation(s)
- Ali Hassanzadeh
- Department of Applied Cell Sciences, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Heshu Sulaiman Rahman
- Department of Physiology, College of Medicine, University of Suleimanyah, Sulaymaniyah, Iraq
| | | | - Judi Januadi Endjun
- Medical Faculty, UPN Veteran, Jakarta, Indonesia.,Gatot Soebroto Indonesia Army Hospital, Jakarta, Indonesia
| | | | | | - Nasrin Beheshtkhoo
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Amin Jadidi Kouhbanani
- Department of Medical Nanotechnology, School of Advanced Medical Sciences and Technologies, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Faroogh Marofi
- Immunology Research Center (IRC), Tabriz University of Medical Sciences, Tabriz, Iran
| | - Marzieh Nikoo
- Department of Immunology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
| | - Mostafa Jarahian
- Toxicology and Chemotherapy Unit (G401), German Cancer Research Center, 69120, Heidelberg, Germany.
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19
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Mehta KJ. Role of iron and iron-related proteins in mesenchymal stem cells: Cellular and clinical aspects. J Cell Physiol 2021; 236:7266-7289. [PMID: 33821487 DOI: 10.1002/jcp.30383] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Revised: 03/17/2021] [Accepted: 03/19/2021] [Indexed: 12/14/2022]
Abstract
Mesenchymal stem cells (MSCs) are located in various tissues where these cells show niche-dependent multilineage differentiation and secrete immunomodulatory molecules to support numerous physiological processes. Due to their regenerative and reparative properties, MSCs are extremely valuable for cell-based therapy in tackling several pathological conditions including COVID-19. Iron is essential for MSC processes but iron-loading, which is common in several chronic conditions, hinders normal MSC functionality. This not only aggravates disease pathology but can also affect allogeneic and autologous MSC therapy. Thus, understanding MSCs from an iron perspective is of clinical significance. Accordingly, this review highlights the roles of iron and iron-related proteins in MSC physiology. It describes the contribution of iron and endogenous iron-related effectors like hepcidin, ferroportin, transferrin receptor, lactoferrin, lipocalin-2, bone morphogenetic proteins and hypoxia inducible factors in MSC biology. It summarises the excess-iron-induced alterations in MSC components, processes and discusses signalling pathways involving ROS, PI3K/AKT, MAPK, p53, AMPK/MFF/DRP1 and Wnt. Additionally, it evaluates the endogenous and exogenous saviours of MSCs against iron-toxicity. Lastly, it elaborates on the involvement of MSCs in the pathology of clinical conditions of iron-excess, namely, hereditary hemochromatosis, diabetes, β-thalassaemia and myelodysplastic syndromes. This unique review integrates the distinct fields of iron regulation and MSC physiology. Through an iron-perspective, it describes both mechanistic and clinical aspects of MSCs and proposes an iron-linked MSC-contribution to physiology, pathology and therapeutics. It advances the understanding of MSC biology and may aid in identifying signalling pathways, molecular targets and compounds for formulating adjunctive iron-based therapies for excess-iron conditions, and thereby inform regenerative medicine.
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Affiliation(s)
- Kosha J Mehta
- Faculty of Life Sciences and Medicine, Centre for Education, King's College London, London, UK
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20
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Baek D, Park KH, Lee KM, Jung S, Joung S, Kim J, Lee JW. Ubiquitin-specific protease 53 promotes osteogenic differentiation of human bone marrow-derived mesenchymal stem cells. Cell Death Dis 2021; 12:238. [PMID: 33664230 PMCID: PMC7933275 DOI: 10.1038/s41419-021-03517-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Revised: 01/29/2021] [Accepted: 02/04/2021] [Indexed: 12/11/2022]
Abstract
The ubiquitin protease pathway plays important role in human bone marrow-derived mesenchymal stem cell (hBMSC) differentiation, including osteogenesis. However, the function of deubiquitinating enzymes in osteogenic differentiation of hBMSCs remains poorly understood. In this study, we aimed to investigate the role of ubiquitin-specific protease 53 (USP53) in the osteogenic differentiation of hBMSCs. Based on re-analysis of the Gene Expression Omnibus database, USP53 was selected as a positive regulator of osteogenic differentiation in hBMSCs. Overexpression of USP53 by lentivirus enhanced osteogenesis in hBMSCs, whereas knockdown of USP53 by lentivirus inhibited osteogenesis in hBMSCs. In addition, USP53 overexpression increased the level of active β-catenin and enhanced the osteogenic differentiation of hBMSCs. This effect was reversed by the Wnt/β-catenin inhibitor DKK1. Mass spectrometry showed that USP53 interacted with F-box only protein 31 (FBXO31) to promote proteasomal degradation of β-catenin. Inhibition of the osteogenic differentiation of hBMSCs by FBXO31 was partially rescued by USP53 overexpression. Animal studies showed that hBMSCs with USP53 overexpression significantly promoted bone regeneration in mice with calvarial defects. These results suggested that USP53 may be a target for gene therapy for bone regeneration.
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Affiliation(s)
- Dawoon Baek
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Kwang Hwan Park
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Kyoung-Mi Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Severance Biomedical Science Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Sujin Jung
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Soyeong Joung
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Jihyun Kim
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea
| | - Jin Woo Lee
- Department of Orthopaedic Surgery, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
- Brain Korea 21 PLUS Project for Medical Sciences, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
- Severance Biomedical Science Institute, Yonsei University College of Medicine, 50-1 Yonsei-ro, Seodaemun-gu, Seoul, 03722, South Korea.
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Takam Kamga P, Bazzoni R, Dal Collo G, Cassaro A, Tanasi I, Russignan A, Tecchio C, Krampera M. The Role of Notch and Wnt Signaling in MSC Communication in Normal and Leukemic Bone Marrow Niche. Front Cell Dev Biol 2021; 8:599276. [PMID: 33490067 PMCID: PMC7820188 DOI: 10.3389/fcell.2020.599276] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/02/2020] [Indexed: 12/11/2022] Open
Abstract
Notch and Wnt signaling are highly conserved intercellular communication pathways involved in developmental processes, such as hematopoiesis. Even though data from literature support a role for these two pathways in both physiological hematopoiesis and leukemia, there are still many controversies concerning the nature of their contribution. Early studies, strengthened by findings from T-cell acute lymphoblastic leukemia (T-ALL), have focused their investigation on the mutations in genes encoding for components of the pathways, with limited results except for B-cell chronic lymphocytic leukemia (CLL); in because in other leukemia the two pathways could be hyper-expressed without genetic abnormalities. As normal and malignant hematopoiesis require close and complex interactions between hematopoietic cells and specialized bone marrow (BM) niche cells, recent studies have focused on the role of Notch and Wnt signaling in the context of normal crosstalk between hematopoietic/leukemia cells and stromal components. Amongst the latter, mesenchymal stromal/stem cells (MSCs) play a pivotal role as multipotent non-hematopoietic cells capable of giving rise to most of the BM niche stromal cells, including fibroblasts, adipocytes, and osteocytes. Indeed, MSCs express and secrete a broad pattern of bioactive molecules, including Notch and Wnt molecules, that support all the phases of the hematopoiesis, including self-renewal, proliferation and differentiation. Herein, we provide an overview on recent advances on the contribution of MSC-derived Notch and Wnt signaling to hematopoiesis and leukemia development.
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Affiliation(s)
- Paul Takam Kamga
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
- EA4340-BCOH, Biomarker in Cancerology and Onco-Haematology, UVSQ, Université Paris Saclay, Boulogne-Billancourt, France
| | - Riccardo Bazzoni
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Giada Dal Collo
- Department of Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Adriana Cassaro
- Hematology Unit, Department of Oncology, Niguarda Hospital, Milan, Italy
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Ilaria Tanasi
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Anna Russignan
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Cristina Tecchio
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
| | - Mauro Krampera
- Stem Cell Research Laboratory, Section of Hematology, Department of Medicine, University of Verona, Verona, Italy
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22
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Li M, Xie Z, Li J, Lin J, Zheng G, Liu W, Tang S, Cen S, Ye G, Li Z, Yu W, Wang P, Wu Y, Shen H. GAS5 protects against osteoporosis by targeting UPF1/SMAD7 axis in osteoblast differentiation. eLife 2020; 9:e59079. [PMID: 33006314 PMCID: PMC7609060 DOI: 10.7554/elife.59079] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/30/2020] [Indexed: 12/17/2022] Open
Abstract
Osteoporosis is a common systemic skeletal disorder resulting in bone fragility and increased fracture risk. It is still necessary to explore its detailed mechanisms and identify novel targets for the treatment of osteoporosis. Previously, we found that a lncRNA named GAS5 in human could negatively regulate the lipoblast/adipocyte differentiation. However, it is still unclear whether GAS5 affects osteoblast differentiation and whether GAS5 is associated with osteoporosis. Our current research found that GAS5 was decreased in the bones and BMSCs, a major origin of osteoblast, of osteoporosis patients. Mechanistically, GAS5 promotes the osteoblast differentiation by interacting with UPF1 to degrade SMAD7 mRNA. Moreover, a decreased bone mass and impaired bone repair ability were observed in Gas5 heterozygous mice, manifesting in osteoporosis. The systemic supplement of Gas5-overexpressing adenoviruses significantly ameliorated bone loss in an osteoporosis mouse model. In conclusion, GAS5 promotes osteoblast differentiation by targeting the UPF1/SMAD7 axis and protects against osteoporosis.
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Affiliation(s)
- Ming Li
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Zhongyu Xie
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
| | - Jinteng Li
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Jiajie Lin
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
| | - Guan Zheng
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Wenjie Liu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Su'an Tang
- Department of Orthopedics, Zhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Shuizhong Cen
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
- Department of Orthopedics, Zhujiang Hospital, Southern Medical UniversityGuangzhouChina
| | - Guiwen Ye
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Zhaofeng Li
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Wenhui Yu
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
| | - Peng Wang
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
| | - Yanfeng Wu
- Center for Biotherapy,The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
- Center for Biotherapy, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
| | - Huiyong Shen
- Department of Orthopedics, The Eighth Affiliated Hospital, Sun Yat-sen UniversityShenzhenChina
- Department of Orthopedics, Sun Yat-sen Memorial Hospital, Sun Yat-sen UniversityGuangzhouChina
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23
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Mashhadikhan M, Kheiri H, Dehghanifard A. DNA methylation and gene expression of sFRP2, sFRP4, Dkk 1, and Wif1 during osteoblastic differentiation of bone marrow derived mesenchymal stem cells. J Oral Biosci 2020; 62:349-356. [PMID: 32835781 DOI: 10.1016/j.job.2020.08.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 08/06/2020] [Accepted: 08/12/2020] [Indexed: 01/01/2023]
Abstract
OBJECTIVES Bone marrow derived mesenchymal stem cells (BMSCs) are an irresistible choice for use in stem cell therapy and regenerative medicine. BMSCs osteoblastic differentiation is also important in bone development, diseases, malignancies, and cancers studies. Wnt signaling pathway antagonists, Dickkopf-1 (Dkk 1), Secreted Frizzled-Related Proteins (sFRPs), and Wnt Inhibitory Factor 1 (Wif1) play important roles in inducing osteoblastic differentiation. This study is the first to investigate the association between DNA methylation and gene expression of Dkk1, sFRP2, sFRP4, and Wif1 during BMSCs osteoblastic differentiation. METHODS Human BMSCs were isolated and characterized using flow cytometry. Then, cells were treated with osteo-differentiation medium for three weeks. Alizarin red S staining and polymerase chain reaction (PCR) (alkaline phosphatase/osteocalcin) were performed for confirmation. The expression of Dkk 1, sFRP2, sFRP4, and Wif1 genes was evaluated at days 7, 14, and 21 using real-time PCR. Methylation-specific PCR (MSP) was performed to detect the methylation status of the promoters of the genes. RESULTS Data showed significant decreases (P < 0.05) during various days of BMSCs differentiation, while the promoters of the genes remained mostly un-methylated. CONCLUSIONS The down-regulation of Dkk 1, sFRP2, sFRP4, and Wif1 regulates various stages of human BMSCs during osteoblastic differentiation. DNA methylation does not interfere in the down-regulation of these genes, except for Wif1. We propose that the Wnt antagonist gene promoters should remain un-methylated during osteoblastic differentiation of BMSCs and that the down-regulation of these genes may contribute to other epigenetic mechanisms, other than DNA methylation, which implicitly indicates the role of DNA methylation in osteogenic cancers.
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Affiliation(s)
- Maedeh Mashhadikhan
- Department of Biology, Faculty of Sciences, Tehran Science and Research Branch, Islamic Azad University, Tehran, Iran.
| | - Hamidreza Kheiri
- Cancer Gene Therapy Research Center, Zanjan University of Medical Science, Zanjan, Iran.
| | - Ali Dehghanifard
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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24
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Ryk modulates the niche activity of mesenchymal stromal cells by fine-tuning canonical Wnt signaling. Exp Mol Med 2020; 52:1140-1151. [PMID: 32724069 PMCID: PMC8080773 DOI: 10.1038/s12276-020-0477-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 04/02/2020] [Accepted: 04/02/2020] [Indexed: 12/12/2022] Open
Abstract
The importance of modulating the intensity of Wnt signaling has been highlighted in various biological models, but their mechanisms remain unclear. In this study, we found that Ryk—an atypical Wnt receptor with a pseudokinase domain—has a Wnt-modulating effect in bone marrow stromal cells to control hematopoiesis-supporting activities. We first found that Ryk is predominantly expressed in the mesenchymal stromal cells (MSCs) of the bone marrow (BM) compared with hematopoietic cells. Downregulation of Ryk in MSCs decreased their clonogenic activity and ability to support self-renewing expansion of primitive hematopoietic progenitors (HPCs) in response to canonical Wnt ligands. In contrast, under high concentrations of Wnt, Ryk exerted suppressive effects on the transactivation of target genes and HPC-supporting effects in MSCs, thus fine-tuning the signaling intensity of Wnt in BM stromal cells. This ability of Ryk to modulate the HPC-supporting niche activity of MSCs was abrogated by induction of deletion mutants of Ryk lacking the intracellular domain or extracellular domain, indicating that the pseudokinase-containing intracellular domain mediates the Wnt-modulating effects in response to extracellular Wnt ligands. These findings indicate that the ability of the BM microenvironment to respond to extracellular signals and support hematopoiesis may be fine-tuned by Ryk via modulation of Wnt signaling intensity to coordinate hematopoietic activity. Steady production of immune and blood cells depends on a signaling protein that helps maintain stable stem cell populations within the bone marrow. Hematopoietic stem cells (HSCs), which give rise to blood cells, reside within a supportive “niche” surrounded by mesenchymal stromal cells (MSCs), with extensive communication between the two populations. Researchers led by Il-Hoan Oh at The Catholic University of Korea, Seoul, have now identified a mechanism that MSCs employ to stabilize the niche environment through fine-tuning the signaling intensity of Wnt. Oh and colleagues focused on a signaling pathway that controls the undifferentiated state of HSCs, and showed that these signals are specifically modulated by an MSC protein known as Ryk. Without Ryk, MSCs can no longer promote HSC proliferation. However, when these signals are excessively strong, Ryk helps suppress proliferation to keep HSC numbers under control.
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25
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Xunian Z, Kalluri R. Biology and therapeutic potential of mesenchymal stem cell-derived exosomes. Cancer Sci 2020; 111:3100-3110. [PMID: 32639675 PMCID: PMC7469857 DOI: 10.1111/cas.14563] [Citation(s) in RCA: 132] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/24/2020] [Accepted: 06/27/2020] [Indexed: 12/15/2022] Open
Abstract
Mesenchymal stem cells (MSC) are multipotent stromal cells with the potential to differentiate into several cell types. MSC‐based therapy has emerged as a promising strategy for various diseases. Accumulating evidence suggests that the paracrine effects of MSC are partially exerted by the secretion of soluble factors, in particular exosomes. MSC‐derived exosomes are involved in intercellular communication through transfer of proteins, RNA, DNA and bioactive lipids, which might constitute a novel intercellular communication mode. This review illustrates the current knowledge on the composition and biological functions as well as the therapeutic potential of MSC‐derived exosomes in cancer, with a focus on clinical translation opportunities.
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Affiliation(s)
- Zhou Xunian
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Raghu Kalluri
- Department of Cancer Biology, Metastasis Research Center, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.,Department of Bioengineering, Rice University, Houston, Texas, USA.,Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, Texas, USA
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26
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Alcorta-Sevillano N, Macías I, Rodríguez CI, Infante A. Crucial Role of Lamin A/C in the Migration and Differentiation of MSCs in Bone. Cells 2020; 9:cells9061330. [PMID: 32466483 PMCID: PMC7348862 DOI: 10.3390/cells9061330] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 05/22/2020] [Accepted: 05/25/2020] [Indexed: 12/17/2022] Open
Abstract
Lamin A/C, intermediate filament proteins from the nuclear lamina encoded by the LMNA gene, play a central role in mediating the mechanosignaling of cytoskeletal forces into nucleus. In fact, this mechanotransduction process is essential to ensure the proper functioning of other tasks also mediated by lamin A/C: the structural support of the nucleus and the regulation of gene expression. In this way, lamin A/C is fundamental for the migration and differentiation of mesenchymal stem cells (MSCs), the progenitors of osteoblasts, thus affecting bone homeostasis. Bone formation is a complex process regulated by chemical and mechanical cues, coming from the surrounding extracellular matrix. MSCs respond to signals modulating the expression levels of lamin A/C, and therefore, adapting their nuclear shape and stiffness. To promote cell migration, MSCs need soft nuclei with low lamin A content. Conversely, during osteogenic differentiation, lamin A/C levels are known to be increased. Several LMNA mutations present a negative impact in the migration and osteogenesis of MSCs, affecting bone tissue homeostasis and leading to pathological conditions. This review aims to describe these concepts by discussing the latest state-of-the-art in this exciting area, focusing on the relationship between lamin A/C in MSCs' function and bone tissue from both, health and pathological points of view.
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27
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Three-dimensional spheroids of mesenchymal stem/stromal cells promote osteogenesis by activating stemness and Wnt/β-catenin. Biochem Biophys Res Commun 2019; 523:458-464. [PMID: 31882121 DOI: 10.1016/j.bbrc.2019.12.066] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 12/15/2019] [Indexed: 12/16/2022]
Abstract
Mesenchymal stem/stromal cells (MSCs) are multipotent and self-renewal cells that are widely used in regenerative medicine. The culture of three-dimensional (3D) spheroid MSCs more accurately mimics the biological microenvironment. However, it is unclear which key molecules are responsible for the cell fate control of MSCs during 3D spheroid formation and their impact on the functional characteristics of these stem cells. Furthermore, it remains unclear what effects 3D spheroid MSC transplantation has on new bone formation compared with that of 2D monolayer MSCs. We assessed whether the osteogenerative potential of 3D spheroid MSCs is greater than that of 2D monolayer MSCs in vitro. In addition, to elucidate the ability of 3D spheroid MSCs to regenerate bone, we examined the effects of transplanting wild-type (WT) or knockout (KO) spheroid MSCs on new bone formation in mice calvarial defect model in vitro. The 3D spheroid MSC culture dramatically upregulated into stemness markers compared with the 2D monolayer MSC culture. In contrast, BMP-2 significantly increased the osteogenesis-related molecules in the 3D spheroid MSCs but, in turn, downregulated the stemness markers. BMP-2 activated Smad1/5 together with Wnt/β-catenin in 3D spheroid MSCs. Transplantation of these MSCs into aged mice with calvarial defects promoted new bone formation compared with that of 2D monolayer MSCs. In contrast, transplantation of 3D or 2D β-catenin knockout MSCs induced little new bone formation. The 3D spheroid MSC culture had higher stemness compared with the 2D monolayer MSC culture. The culture of 3D spheroid MSCs rapidly promoted osteoblastogenesis and bone formation through synergistic activation of the Wnt/β-catenin pathway in vitro. The transformation of 3D spheroid, but not 2D monolayer, MSCs promoted new bone regeneration in vivo. These results indicate that transplantation of 3D spheroid MSCs in regeneration therapy contributes to a shorter regenerative healing process, including new bone formation.
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28
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HiPS-Cardiac Trilineage Cell Generation and Transplantation: a Novel Therapy for Myocardial Infarction. J Cardiovasc Transl Res 2019; 13:110-119. [PMID: 31152358 DOI: 10.1007/s12265-019-09891-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2019] [Accepted: 04/29/2019] [Indexed: 12/12/2022]
Abstract
Despite primary percutaneous coronary intervention (PPCI) and the availability of optimal medications, including dual antiplatelet therapy (DAPT), most patients still experience major adverse cardiovascular events (MACEs) due to frequent recurrence of thrombotic complications and myocardial infarction (MI). MI occurs secondary to a massive loss of endothelial cells (ECs), vascular smooth muscle cells (VSMCs), and cardiomyocytes (CMs). The adult cardiovascular system gradually loses the ability to spontaneously and regularly regenerate ECs, VSMCs, and CMs. However, human cells can be induced by cytokines and growth factors to regenerate human-induced pluripotent stem cells (hiPSCs), which progress to produce cardiac trilineage cells (CTCs) such as ECs, VSMCs, and CMs, replacing lost cells and inducing myocardial repair. Nevertheless, the processes and pathways involved in hiPSC-CTC generation and their potential therapeutic effects remain unknown. Herein, we provide evidence of in vitro CTC generation, the pathways involved, in vivo transplantation, and its therapeutic effect, which may provide novel targets in regenerative medicine for the treatment of cardiovascular diseases (CVDs).
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29
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Smieszek A, Kornicka K, Szłapka-Kosarzewska J, Androvic P, Valihrach L, Langerova L, Rohlova E, Kubista M, Marycz K. Metformin Increases Proliferative Activity and Viability of Multipotent Stromal Stem Cells Isolated from Adipose Tissue Derived from Horses with Equine Metabolic Syndrome. Cells 2019; 8:E80. [PMID: 30678275 PMCID: PMC6406832 DOI: 10.3390/cells8020080] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 01/18/2019] [Accepted: 01/21/2019] [Indexed: 12/17/2022] Open
Abstract
In this study, we investigated the influence of metformin (MF) on proliferation and viability of adipose-derived stromal cells isolated from horses (EqASCs). We determined the effect of metformin on cell metabolism in terms of mitochondrial metabolism and oxidative status. Our purpose was to evaluate the metformin effect on cells derived from healthy horses (EqASCHE) and individuals affected by equine metabolic syndrome (EqASCEMS). The cells were treated with 0.5 μM MF for 72 h. The proliferative activity was evaluated based on the measurement of BrdU incorporation during DNA synthesis, as well as population doubling time rate (PDT) and distribution of EqASCs in the cell cycle. The influence of metformin on EqASC viability was determined in relation to apoptosis profile, mitochondrial membrane potential, oxidative stress markers and BAX/BCL-2 mRNA ratio. Further, we were interested in possibility of metformin affecting the Wnt3a signalling pathway and, thus, we determined mRNA and protein level of WNT3A and β-catenin. Finally, using a two-tailed RT-qPCR method, we investigated the expression of miR-16-5p, miR-21-5p, miR-29a-3p, miR-140-3p and miR-145-5p. Obtained results indicate pro-proliferative and anti-apoptotic effects of metformin on EqASCs. In this study, MF significantly improved proliferation of EqASCs, which manifested in increased synthesis of DNA and lowered PDT value. Additionally, metformin improved metabolism and viability of cells, which correlated with higher mitochondrial membrane potential, reduced apoptosis and increased WNT3A/β-catenin expression. Metformin modulates the miRNA expression differently in EqASCHE and EqASCEMS. Metformin may be used as a preconditioning agent which stimulates proliferative activity and viability of EqASCs.
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Affiliation(s)
- Agnieszka Smieszek
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, 50-375 Wroclaw, Poland.
| | - Katarzyna Kornicka
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, 50-375 Wroclaw, Poland.
| | - Jolanta Szłapka-Kosarzewska
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, 50-375 Wroclaw, Poland.
| | - Peter Androvic
- Laboratory of Gene Expression, Institute of Biotechnology CAS, Biocev, 252 50 Vestec, Czech Republic.
- Laboratory of Growth Regulators, Faculty of Science, Palacky University, 78371 Olomouc, Czech Republic.
| | - Lukas Valihrach
- Laboratory of Gene Expression, Institute of Biotechnology CAS, Biocev, 252 50 Vestec, Czech Republic.
| | - Lucie Langerova
- Gene Core BIOCEV, Průmyslová 595, Vestec 252 50, Czech Republic.
| | - Eva Rohlova
- Laboratory of Gene Expression, Institute of Biotechnology CAS, Biocev, 252 50 Vestec, Czech Republic.
- Department of Anthropology and Human Genetics, Faculty of Science, Charles University, 128 43 Prague, Czech Republic.
| | - Mikael Kubista
- Laboratory of Gene Expression, Institute of Biotechnology CAS, Biocev, 252 50 Vestec, Czech Republic.
- TATAA Biocenter AB, 411 03 Gothenburg, Sweden.
| | - Krzysztof Marycz
- Department of Experimental Biology, The Faculty of Biology and Animal Science, University of Environmental and Life Sciences, 50-375 Wroclaw, Poland.
- Faculty of Veterinary Medicine, Equine Clinic-Equine Surgery, Justus-Liebig-University, 35392 Giessen, Germany.
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30
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Luo Y, Zhang Y, Miao G, Zhang Y, Liu Y, Huang Y. Runx1 regulates osteogenic differentiation of BMSCs by inhibiting adipogenesis through Wnt/β-catenin pathway. Arch Oral Biol 2018; 97:176-184. [PMID: 30391794 DOI: 10.1016/j.archoralbio.2018.10.028] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 09/29/2018] [Accepted: 10/26/2018] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Bone marrow stem cells (BMSCs) can commit to both adipocyte and osteoblast lineages. However, the mechanism underlying how transcription factors regulate this process remains elusive. Our aims were to determine the role of runt-related transcription factor 1 (Runx1) in BMSCs lineage determination and the underlying mechanisms. STUDY DESIGN BMSCs from mouse femur bone marrow were harvested and cultured in osteogenic medium. Runx1 was knocked down in BMSCs using lentivirus. Alkaline phosphatase (ALP), Von Kossa and Oil Red O staining were performed on the Runx1-transduced BMSCs and control cells to see the differences of osteogenic and adipogenic differentiation in these groups. Real-time quantitative PCR and Western blot were performed to analyse the expression levels of osteogenic and adipogenic factors regulated by Runx1 at gene and protein levels. RESULTS In BMSCs with Runx1 knockdown, the expression levels of osteogenic-related genes decreased significantly while the adipogenic genes C/EBPα, PPARγ and Fabp4 increased by 12-fold, 10-fold, and 30-fold, respectively, compared with the control cells. ALP activity and Von kossa staining were greatly decreased in Runx1-transfected cells while the Oil Red O staining was comparable to that in the control groups. Canonical Wnt signaling was investigated in the Runx1-deficient BMSCs, and a 50% decrease in the expression of active β-catenin in these cells was found. Lef1 and Tcf1, which are regulated by β-catenin were also decreased in Runx1-deficient cells compared with the levels in controls. Moreover, although there was no difference in the expression of Wnt3a among the three groups of cells, the expression of Wnt10b decreased by 80% in Runx1-deficient BMSCs compared with the levels in the other two groups. CONCLUSIONS Our results show Runx1 promotes the capacity of osteogenesis in BMSCs while inhibits their adipogenesis through canonical Wnt/β-catenin pathway, which provides new insights into osteoblast development.
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Affiliation(s)
- Yuan Luo
- Department of Oral Surgery, Shanghai Stomatological Hospital, Shanghai, PR China
| | - Yingdi Zhang
- Department of Stomatology, Shanghai East Hospital Affiliated with Tongji University, Shanghai, PR China
| | - Guojun Miao
- Department of Stomatology, Shanghai East Hospital Affiliated with Tongji University, Shanghai, PR China
| | - Yiwen Zhang
- Department of Stomatology, Shanghai East Hospital Affiliated with Tongji University, Shanghai, PR China
| | - Yuehua Liu
- Department of Orthodontics, Shanghai Stomatological Hospital, Shanghai, PR China.
| | - Yuanliang Huang
- Department of Stomatology, Shanghai East Hospital Affiliated with Tongji University, Shanghai, PR China.
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31
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Knight MN, Karuppaiah K, Lowe M, Mohanty S, Zondervan RL, Bell S, Ahn J, Hankenson KD. R-spondin-2 is a Wnt agonist that regulates osteoblast activity and bone mass. Bone Res 2018; 6:24. [PMID: 30131881 PMCID: PMC6089978 DOI: 10.1038/s41413-018-0026-7] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 03/28/2018] [Accepted: 06/26/2018] [Indexed: 12/16/2022] Open
Abstract
The R-spondin family of proteins are Wnt agonists, and the complete embryonic disruption of Rspo2 results in skeletal developmental defects that recapitulate the phenotype observed with Lrp5/6 deficiency. Previous work has shown that R-spondin-2 (Rspo2, RSPO2) is both highly expressed in Wnt-stimulated pre-osteoblasts and its overexpression induces osteoblast differentiation in the same cells, supporting its putative role as a positive autocrine regulator of osteoblastogenesis. However, the role of Rspo2 in regulating osteoblastogenesis and bone formation in postnatal bone has not been explored. Here we show that limb-bud progenitor cells from Rspo2 knockout mice undergo reduced mineralization during osteoblastogenesis in vitro and have a corresponding alteration in their osteogenic gene expression profile. We also generated the first Rspo2 conditional knockout (Rspo2floxed) mouse and disrupted Rspo2 expression in osteoblast-lineage cells by crossing to the Osteocalcin-Cre mouse line (Ocn-Cre + Rspo2f/f). Ocn-Cre + Rspo2f/f male and female mice at 1, 3, and 6 months were examined. Ocn-Cre + Rspo2f/f mice are decreased in overall body size compared to their control littermates and have decreased bone mass. Histomorphometric analysis of 1-month-old mice revealed a similar number of osteoblasts and mineralizing surface per bone surface with a simultaneous decrease in mineral apposition and bone formation rates. Consistent with this observation, serum osteocalcin in 3-month-old Ocn-Cre + Rspo2f/f was reduced, and bone marrow-mesenchymal stem cells from Ocn-Cre + Rspo2f/f mice undergo less mineralization in vitro. Finally, gene expression analysis and immunohistochemistry of mature bone shows reduced beta-catenin signaling in Ocn-Cre + Rspo2f/f. Overall, RSPO2 reduces osteoblastogenesis and mineralization, leading to reduced bone mass. A loss of R-spondin-2 reduces osteoblastogenesis (production of osteoblasts, the cells from which bone develops) and mineralization, thereby leading to decreased bone mass in adults. R-spondin-2 is one of a family of four proteins that are expressed in the developing mouse limb as well as other tissues; each R-spondin family member exerts a different functional effect. R-spondins clearly influence several aspects of skeletal biology, but their specific roles—especially in postnatal bone—remained to be elucidated. A team headed by Kurt Hankenson at the University of Michigan Medical School investigated the role of R-spondin-2 in osteoblastogenesis, both in vitro and in vivo, using a mouse model. For the first time, the team was able to demonstrate that R-spondin-2 promotes osteoblastogenesis, bone development, and consequent bone mass growth in adult mice.
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Affiliation(s)
- M Noelle Knight
- 1Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Kannan Karuppaiah
- 2Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, USA
| | - Michele Lowe
- 2Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, USA
| | - Sarthak Mohanty
- 1Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Robert L Zondervan
- 2Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, USA
| | - Sheila Bell
- 3Division of Pulmonary Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, USA
| | - Jaimo Ahn
- 1Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA
| | - Kurt D Hankenson
- 1Department of Orthopaedic Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, USA.,2Department of Orthopaedic Surgery, University of Michigan Medical School, Ann Arbor, USA
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Shearer JJ, Figueiredo Neto M, Umbaugh CS, Figueiredo ML. In Vivo Exposure to Inorganic Arsenic Alters Differentiation-Specific Gene Expression of Adipose-Derived Mesenchymal Stem/Stromal Cells in C57BL/6J Mouse Model. Toxicol Sci 2018; 157:172-182. [PMID: 28206643 DOI: 10.1093/toxsci/kfx026] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The number of mesenchymal stem cell (MSC) therapeutic modalities has grown in recent years. Adipose-derived mesenchymal stem/stromal cells (ASCs) can be isolated and expanded relatively easily as compared with their bone-marrow counterparts, making them a particularly promising source of MSCs. And although the biological mechanisms surrounding ASCs are actively being investigated, little is known about the effects that in vivo environmental exposures might have on their ability to properly differentiate. Therefore, we hypothesized that ASCs isolated from mice exposed to inorganic arsenic (iAs) would have an altered response towards adipogenic, osteogenic, and/or chondrogenic differentiation. To test this hypothesis, C57BL/6J male mice were provided drinking water containing 0, 300, or 1000 ppb iAs. ASCs were then isolated and differentiated, which was assessed by immunocytochemistry and real-time quantitative PCR (RT-qPCR). Our results showed that total urinary arsenic equilibrated within 1 week of exposure to iAs and was maintained throughout the study. ASCs isolated from each exposure group maintained differentiation capabilities for each lineage. The magnitude of differentiation-specific gene expression, however, appeared to be concentration dependent. For osteogenesis and chondrogenesis, differentiation-specific gene expression decreased, whereas adipogenesis showed a biphasic response with an initial decrease followed by an increase in adipogenic-related gene expression following iAs exposure. These results suggest that the level in which differentiation-specific genes are induced within these stromal cells might be sensitive to environmental contaminants. These findings highlight the need to take into account potential environmental exposures prior to selecting stromal cell donors, so ASCs can achieve optimal efficiency in regenerative therapy applications.
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Affiliation(s)
- Joseph J Shearer
- Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | - Manoel Figueiredo Neto
- Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | - C Samuel Umbaugh
- Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
| | - Marxa L Figueiredo
- Department of Basic Medical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, Indiana, USA
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Lin DPL, Dass CR. Transdifferentiation of adipocytes to osteoblasts: potential for orthopaedic treatment. ACTA ACUST UNITED AC 2018; 70:307-319. [PMID: 29365349 DOI: 10.1111/jphp.12862] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Accepted: 11/22/2017] [Indexed: 12/14/2022]
Abstract
OBJECTIVES As both adipocytes and osteoblasts originate from the same pool of mesenchymal stem cells, increasing clinical evidence has emerged of the plasticity between the two lineages. For instance, the downregulation of osteoblast differentiation and upregulation of adipogenesis are common features of conditions such as multiple myeloma, obesity and drug-induced bone loss in diabetes mellitus. However, despite in-vitro and in-vivo observations of adipocyte transdifferentiation into osteoblasts, little is known of the underlying mechanisms. KEY FINDINGS This review summarises the current knowledge of this particular transdifferentiation process whereby the Wnt/β-catenin signalling pathway and Runx2 overexpression have been postulated to play a critical role. SUMMARY Furthermore, due to the possibility of a novel therapy in the treatment of bone conditions, a number of agents with the potential to induce adipo-to-osteoblast transdifferentiation have been investigated such as all-trans retinoic acid, bone morphogenetic protein-9 and vascular endothelial growth factor.
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Affiliation(s)
- Daphne P L Lin
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, Perth, WA, Australia.,Curtin Biosciences Research Precinct, Bentley, Perth, WA, Australia
| | - Crispin R Dass
- School of Pharmacy and Biomedical Science, Curtin University, Bentley, Perth, WA, Australia.,Curtin Biosciences Research Precinct, Bentley, Perth, WA, Australia
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Shift of EMT gradient in 3D spheroid MSCs for activation of mesenchymal niche function. Sci Rep 2017; 7:6859. [PMID: 28761088 PMCID: PMC5537359 DOI: 10.1038/s41598-017-07049-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 06/23/2017] [Indexed: 12/19/2022] Open
Abstract
Despite the wide use of mesenchymal stromal cells (MSCs) for paracrine support in clinical trials, their variable and heterogeneous supporting activity pose major challenges. While three-dimensional (3D) MSC cultures are emerging as alternative approaches, key changes in cellular characteristics during 3D-spheroid formation remain unclear. Here, we show that MSCs in 3D spheroids undergo further progression towards the epithelial-mesenchymal transition (EMT), driven by upregulation of EMT-promoting microRNAs and suppression of EMT-inhibitory miRNAs. The shift of EMT in MSCs is associated with widespread histone modifications mimicking the epigenetic reprogramming towards enhanced chromatin dynamics and stem cell-like properties, but without changes in their surface phenotype. Notably, these molecular shifts towards EMT in 3D MSCs caused enhanced stem cell niche activity, resulting in higher stimulation of hematopoietic progenitor self-renewal and cancer stem cell metastasis. Moreover, miRNA-mediated induction of EMT in 2D MSCs were sufficient to mimic the enhanced niche activity of 3D spheroid MSCs. Thus, the molecular hierarchy in the EMT gradient among phenotypically indistinguishable MSCs revealed the previously unrecognized functional parameters in MSCs, and the EMT-enhanced “naïve” mesenchymal state represents an ‘activated mesenchymal niche’ in 3D spheroid MSCs.
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35
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Sezgin E, Azbazdar Y, Ng XW, Teh C, Simons K, Weidinger G, Wohland T, Eggeling C, Ozhan G. Binding of canonical Wnt ligands to their receptor complexes occurs in ordered plasma membrane environments. FEBS J 2017. [PMID: 28626941 PMCID: PMC5599997 DOI: 10.1111/febs.14139] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
While the cytosolic events of Wnt/β‐catenin signaling (canonical Wnt signaling) pathway have been widely studied, only little is known about the molecular mechanisms involved in Wnt binding to its receptors at the plasma membrane. Here, we reveal the influence of the immediate plasma membrane environment on the canonical Wnt–receptor interaction. While the receptors are distributed both in ordered and disordered environments, Wnt binding to its receptors selectively occurs in more ordered membrane environments which appear to cointernalize with the Wnt‐receptor complex. Moreover, Wnt/β‐catenin signaling is significantly reduced when the membrane order is disturbed by specific inhibitors of certain lipids that prefer to localize at the ordered environments. Similarly, a reduction in Wnt signaling activity is observed in Niemann–Pick Type C disease cells where trafficking of ordered membrane lipid components to the plasma membrane is genetically impaired. We thus conclude that ordered plasma membrane environments are essential for binding of canonical Wnts to their receptor complexes and downstream signaling activity.
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Affiliation(s)
- Erdinc Sezgin
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, UK
| | - Yagmur Azbazdar
- Izmir International Biomedicine and Genome Institute (iBG-izmir), Dokuz Eylul University, Izmir, Turkey.,Department of Medical Biology and Genetics, Dokuz Eylul University Medical School, Izmir, Turkey
| | - Xue W Ng
- Department of Chemistry and Center for BioImaging Sciences, National University of Singapore, Singapore
| | - Cathleen Teh
- Institute of Molecular and Cell Biology, Agency for Science, Technology and Research, Singapore, Singapore
| | - Kai Simons
- Max Planck Institute of Cell Biology and Genetics, Dresden, Germany
| | - Gilbert Weidinger
- Institute of Biochemistry and Molecular Biology, Ulm University, Germany
| | - Thorsten Wohland
- Department of Chemistry and Center for BioImaging Sciences, National University of Singapore, Singapore
| | - Christian Eggeling
- MRC Human Immunology Unit, Weatherall Institute of Molecular Medicine, University of Oxford, UK
| | - Gunes Ozhan
- Izmir International Biomedicine and Genome Institute (iBG-izmir), Dokuz Eylul University, Izmir, Turkey.,Department of Medical Biology and Genetics, Dokuz Eylul University Medical School, Izmir, Turkey
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36
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Gurgul A, Opiela J, Pawlina K, Szmatoła T, Bochenek M, Bugno-Poniewierska M. The effect of histone deacetylase inhibitor trichostatin A on porcine mesenchymal stem cell transcriptome. Biochimie 2017; 139:56-73. [PMID: 28552396 DOI: 10.1016/j.biochi.2017.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 05/23/2017] [Indexed: 12/29/2022]
Abstract
The use of histone deacetylase inhibitors such as trichostatin A (TSA) for epigenetic transformation of mesenchymal stem cells (MSCs), whose nuclei will be transferred into enucleated oocytes, is a novel approach in research involving somatic cell cloning of pigs and other mammalian species. Although the effectiveness of TSA in cloning applications was confirmed, processes and mechanisms underlying achieved effects are not yet fully understood, especially for pig MSCs. To contribute to this knowledge, in this study we performed a comprehensive transcriptome analysis using high-throughput sequencing of pig bone-marrow derived MSCs, both treated and untreated with TSA, and evaluated the effect of TSA administration on their transcription profile after 24 h of in vitro culture. The expression of selected positive and negative mesenchymal surface antigens was also evaluated in these cells by flow cytometry. Subsequently, the stability of induced expression changes was evaluated after another 55-72 h of culture without TSA. The results of this study showed that TSA does not affect the expression of the selected surface antigens related to MSC mesenchymal stemness origin, namely: CD90 (positive marker), CD31 and CD34 (negative markers) and has a wide stimulating effect on MSCs transcription, affecting genes across the whole genome with some minor signs of site-specific acting in regions on SSC2 and SSC6. TSA turned out to have a higher impact on already expressed genes with only minor abilities to induce expression of silenced genes. Genes with expression affected by TSA were related to a wide range of biological processes, however, we found some evidence for specific stimulation of genes associated with development, differentiation, neurogenesis or myogenesis. TSA also seemed to interfere with Wnt signaling pathways by upregulation of several engaged genes. The analysis of cell transcriptome after prolonged culture following the TSA removal, showed that the expression level of majority of genes affected by TSA is restored to the initial level. Nonetheless, the set of about six hundred genes responsible for e.g. adhesion, signal transduction and cell communication was altered even after 55-72 h of culture without TSA. TSA also enhanced expression of some of pluripotency marker genes (FGF2, LIF, TERT) but their expression was stabilized during further culture without TSA. The detailed analysis of factors connected with neuron-like differentiation allowed us to assume that TSA mostly stimulates neurogenic differentiation pathway in the pig MSCs possibly through interaction with Wnt-mediated signaling and thus triggers mechanisms conducive to epigenetic reprograming.
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Affiliation(s)
- Artur Gurgul
- National Research Institute of Animal Production, Department of Genomics and Molecular Biology, Krakowska 1, 32-083, Balice, Poland.
| | - Jolanta Opiela
- National Research Institute of Animal Production, Department of Biotechnology of Animal Reproduction, Krakowska 1, 32-083, Balice, Poland
| | - Klaudia Pawlina
- National Research Institute of Animal Production, Department of Genomics and Molecular Biology, Krakowska 1, 32-083, Balice, Poland
| | - Tomasz Szmatoła
- National Research Institute of Animal Production, Department of Genomics and Molecular Biology, Krakowska 1, 32-083, Balice, Poland
| | - Michał Bochenek
- National Research Institute of Animal Production, Department of Biotechnology of Animal Reproduction, Krakowska 1, 32-083, Balice, Poland
| | - Monika Bugno-Poniewierska
- National Research Institute of Animal Production, Department of Genomics and Molecular Biology, Krakowska 1, 32-083, Balice, Poland
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37
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Mouse Mesenchymal Progenitor Cells Expressing Adipogenic and Osteogenic Transcription Factors Suppress the Macrophage Inflammatory Response. Stem Cells Int 2017; 2017:5846257. [PMID: 28191017 PMCID: PMC5278224 DOI: 10.1155/2017/5846257] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 11/22/2016] [Accepted: 12/18/2016] [Indexed: 12/25/2022] Open
Abstract
Mesenchymal progenitor cell characteristics that can identify progenitor populations with specific functions in immunity are actively being investigated. Progenitors from bone marrow and adipose tissue regulate the macrophage (MΦ) inflammatory response by promoting the switch from an inflammatory to an anti-inflammatory phenotype. Conversely, mesenchymal progenitors from the mouse aorta (mAo) support and contribute to the MΦ response under inflammatory conditions. We used cell lines with purported opposing immune-regulatory function, a bone marrow derived mesenchymal progenitor cell line (D1) and a mouse aorta derived mesenchymal progenitor cell line (mAo). Their interaction and regulation of the MΦ cell response to the inflammatory mediator, lipopolysaccharide (LPS), was examined by coculture. As expected, D1 cells suppressed NO, TNF-α, and IL-12p70 production but MΦ phagocytic activity remained unchanged. The mAo cells enhanced NO and TNF-α production in coculture and enhanced MΦ phagocytic activity. Using flow cytometry and PCR array, we then sought to identify sets of MSC-associated genes and markers that are expressed by these progenitor populations. We have determined that immune-supportive mesenchymal progenitors highly express chondrogenic and tenogenic transcription factors while immunosuppressive mesenchymal progenitors highly express adipogenic and osteogenic transcription factors. These data will be useful for the isolation, purification, and modification of mesenchymal progenitors to be used in the treatment of inflammatory diseases.
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38
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Zhang X, Du Y, Ling J, Li W, Liao Y, Wei X. Dickkopf-related protein 3 negatively regulates the osteogenic differentiation of rat dental follicle cells. Mol Med Rep 2017; 15:1673-1681. [PMID: 28259940 PMCID: PMC5364975 DOI: 10.3892/mmr.2017.6165] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Accepted: 12/15/2016] [Indexed: 01/05/2023] Open
Abstract
The present study aimed to investigate the effect of Dickkopf-related protein 3 (DKK3) on osteogenic differentiation of rat dental follicle cells (DFCs). A PCR array analysis of Wnt pathway activation in DFCs identified genes dysregulated by mineral induction. Among them, DKK3expression levels were decreased, and further experiments were conducted to investigate its role in DFC osteogenesis. By comparing DFCs grown in normal growth and mineral-induction media for 4 weeks, the present study confirmed that DKK3 was a potential target gene of osteogenesis through reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting (WB). A short hairpin RNA (shRNA) was introduced into DFCs using a lentiviral vector to inhibit DKK3 expression. An alkaline phosphatase (ALP) activity assay and Alizarin Red staining were performed to observe the DKK3-shRNA DFCs. In addition, the osteogenic differentiation of DKK3-shRNA DFCs was analyzed by RT-qPCR and WB. In vivo, DKK3-shRNA DFCs seeded on hydroxyapatite/β-tricalcium phosphate (HA/TCP) scaffolds were transplanted into the subcutaneous tissue of mice with severe combined immunodeficiency, followed by hematoxylin-eosin and Masson staining. The results confirmed that DKK3 expression was downregulated during mineral induction in rat DFCs. Lentivirus-mediated expression of DKK3 shRNA in DFCs promoted calcified-nodule formation, ALP activity and the expression of β-catenin, runt-related transcription factor 2 and osteocalcin, compared with control cells. In vivo, the implanted section presented the majority of newly formed osteoid matrices and collagen, with limited space between the HA/TCP scaffolds and matrices. In conclusion, DKK3 expression negatively regulates the osteogenic differentiation of DFCs and, conversely, downregulation of DKK3 may enhance DFC osteogenesis.
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Affiliation(s)
- Xinchun Zhang
- Department of Prosthodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Yu Du
- Department of Operative Dentistry and Endodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Junqi Ling
- Department of Operative Dentistry and Endodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
| | - Weiqiang Li
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Yan Liao
- Center for Stem Cell Biology and Tissue Engineering, Key Laboratory for Stem Cells and Tissue Engineering, Ministry of Education, Sun Yat‑sen University, Guangzhou, Guangdong 510080, P.R. China
| | - Xi Wei
- Department of Operative Dentistry and Endodontics, Guangdong Provincial Key Laboratory of Stomatology, Guanghua School of Stomatology, Sun Yat‑sen University, Guangzhou, Guangdong 510055, P.R. China
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39
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Kim JH, Lee HS, Choi HK, Kim JA, Chu IS, Leem SH, Oh IH. Heterogeneous Niche Activity of Ex-Vivo Expanded MSCs as Factor for Variable Outcomes in Hematopoietic Recovery. PLoS One 2016; 11:e0168036. [PMID: 28030562 PMCID: PMC5193420 DOI: 10.1371/journal.pone.0168036] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 11/23/2016] [Indexed: 12/11/2022] Open
Abstract
Ex-vivo expanded mesenchymal stromal cells (MSCs) are increasingly used for paracrine support of hematopoietic stem cell (HSC) regeneration, but inconsistent outcomes have hindered ongoing clinical trials. Here, we show that significant heterogeneity in the niche activity of MSCs is created during their culture in various serum-supplemented media. The MSCs cultured under stimulatory or non-stimulatory culture conditions exhibited differences in colony forming unit-fibroblast contents, expression levels of cross-talk molecules (Jagged-1 and CXCL-12) and their support for HSC self-renewal. Accordingly, the enhancing effects of MSCs on hematopoietic engraftment were only visible when HSCs were co-transplanted with MSCs under stimulatory conditions. Of note, these differences in MSCs and their effects on HSCs were readily reversed by switching the cultures, indicating that the difference in niche activity can be caused by distinct functional state, rather than by clonal heterogeneity. Supporting the findings, transcriptomic analysis showed distinct upstream signaling pathways such as inhibition of P53 and activation of ER-stress response gene ATF4 for MSCs under stimulatory conditions. Taken together, our study shows that the niche activity of MSCs can vary rapidly by the extrinsic cues during culture causing variable outcomes in hematopoietic recoveries, and point to the possibility that MSCs can be pre-screened for more predictable efficacy in various cell therapy trials.
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Affiliation(s)
- Jung-Ho Kim
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ho-Sun Lee
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, The Catholic University of Korea, Seoul, Republic of Korea
| | - Hyun-Kyung Choi
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin-A Kim
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, The Catholic University of Korea, Seoul, Republic of Korea
| | - In-Sun Chu
- Korean Bioinformation Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon, Republic of Korea
| | - Sun-Hee Leem
- Department of Biological Science, Dong-A university, Busan, Republic of Korea
| | - Il-Hoan Oh
- Catholic High-Performance Cell Therapy Center & Department of Medical Life Science, The Catholic University of Korea, Seoul, Republic of Korea
- * E-mail:
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40
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Celik S, Logsdon BA, Battle S, Drescher CW, Rendi M, Hawkins RD, Lee SI. Extracting a low-dimensional description of multiple gene expression datasets reveals a potential driver for tumor-associated stroma in ovarian cancer. Genome Med 2016; 8:66. [PMID: 27287041 PMCID: PMC4902951 DOI: 10.1186/s13073-016-0319-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 05/18/2016] [Indexed: 12/22/2022] Open
Abstract
Patterns in expression data conserved across multiple independent disease studies are likely to represent important molecular events underlying the disease. We present the INSPIRE method to infer modules of co-expressed genes and the dependencies among the modules from multiple expression datasets that may contain different sets of genes. We show that INSPIRE infers more accurate models than existing methods to extract low-dimensional representation of expression data. We demonstrate that applying INSPIRE to nine ovarian cancer datasets leads to a new marker and potential driver of tumor-associated stroma, HOPX, followed by experimental validation. The implementation of INSPIRE is available at http://inspire.cs.washington.edu .
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Affiliation(s)
- Safiye Celik
- Department of Computer Science & Engineering, University of Washington, Seattle, WA, USA
| | | | - Stephanie Battle
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
| | - Charles W Drescher
- Translational Research Program, Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - Mara Rendi
- Department of Anatomic Pathology, University of Washington, Seattle, WA, USA
| | - R David Hawkins
- Department of Genome Sciences, University of Washington, Seattle, WA, USA
- Medical Genetics, Department of Medicine, University of Washington, Seattle, WA, USA
| | - Su-In Lee
- Department of Computer Science & Engineering, University of Washington, Seattle, WA, USA.
- Department of Genome Sciences, University of Washington, Seattle, WA, USA.
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41
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Suwala AK, Hanaford A, Kahlert UD, Maciaczyk J. Clipping the Wings of Glioblastoma: Modulation of WNT as a Novel Therapeutic Strategy. J Neuropathol Exp Neurol 2016; 75:388-96. [PMID: 26979081 DOI: 10.1093/jnen/nlw013] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Glioblastoma (GBM) is the most malignant brain tumor and has a dismal prognosis. Aberrant WNT signaling is known to promote glioma cell growth and dissemination and resistance to conventional radio- and chemotherapy. Moreover, a population of cancer stem-like cells that promote glioma growth and recurrence are strongly dependent on WNT signaling. Here, we discuss the role and mechanisms of aberrant canonical and noncanonical WNT signaling in GBM. We present current clinical approaches aimed at modulating WNT activity and evaluate their clinical perspective as a novel treatment option for GBM.
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Affiliation(s)
- Abigail K Suwala
- From the Department of Neurosurgery, University Medical Center Düsseldorf, Düsseldorf, Germany (AKS, UDK, JM); and Division of Neuropathology, Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland (AH)
| | - Allison Hanaford
- From the Department of Neurosurgery, University Medical Center Düsseldorf, Düsseldorf, Germany (AKS, UDK, JM); and Division of Neuropathology, Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland (AH)
| | - Ulf D Kahlert
- From the Department of Neurosurgery, University Medical Center Düsseldorf, Düsseldorf, Germany (AKS, UDK, JM); and Division of Neuropathology, Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland (AH)
| | - Jaroslaw Maciaczyk
- From the Department of Neurosurgery, University Medical Center Düsseldorf, Düsseldorf, Germany (AKS, UDK, JM); and Division of Neuropathology, Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland (AH).
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