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Lino JB, Robert AW, Stimamiglio MA, de Aguiar AM. Comparative analysis of the potential of the secretomes of cardiac resident stromal cells and fibroblasts. IUBMB Life 2023; 75:196-206. [PMID: 34590780 DOI: 10.1002/iub.2557] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/13/2021] [Indexed: 11/10/2022]
Abstract
The secretome of different cell types has been applied on in vitro and in vivo assays, indicating considerable therapeutic potential. However, the choice of the ideal cell type and culture conditions for obtaining the best set of soluble factors, as well as the assays to assess specific effects, remain subjects of vigorous debate. In this study, we used mass spectrometry to characterize the secretomes of ventricle derived-cardiac resident stromal cells (vCRSC) and human dermal fibroblasts (HDFs) and evaluate them in an effort to understand the niche specificity of biological responses toward different cellular behaviors, such as cell proliferation, adhesion, migration, and differentiation. It was interesting to note that the HDF and vCRSC secretomes were both able to induce proliferation and cardiac differentiation of H9c2 cells, as well as to increase the adhesion activity of H9c2 cells and human umbilical vein endothelial cells. Analysis of the secretome composition showed that the vCRSCs derived from different donors secreted a similar set of proteins. Despite the differences, almost half of the proteins identified in conditioned medium were common to both HDF and vCRSC. Consequently, a high number of common biological processes were identified in the secretomes of the two cell types, which could help to explain the similar results observed in the in vitro assays. We show that soluble factors secreted by both HDF and vCRSC are able to promote proliferation and differentiation of cardiomyoblasts in vitro. Our study indicates the possible use of vCRSC or HDF secretomes in acellular therapies for regenerative medicine.
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Affiliation(s)
- Jhonatan Basso Lino
- Stem Cells Basic Biology Laboratory, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Paraná, Brazil
| | - Anny Waloski Robert
- Stem Cells Basic Biology Laboratory, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Paraná, Brazil
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2
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Robert AW, Batista M, Lino JB, Stimamiglio MA, de Aguiar AM. Proteomics and image screening data of cellular secretomes and their biological effects: Comparing the signals sent by cardiac stromal cells and dermal fibroblasts in culture. Data Brief 2022; 41:107963. [PMID: 35242943 PMCID: PMC8881688 DOI: 10.1016/j.dib.2022.107963] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 02/07/2022] [Accepted: 02/10/2022] [Indexed: 11/26/2022] Open
Abstract
The study of the secretome of different cell types has gained prominence over the years due to its role in understanding the cell microenvironment and possible uses in acellular therapies. Approaches in this field include proteomic characterizations of the secretomes as well as evaluating their potential to induce cell and tissue responses. Here, we present the mass spectrometry proteomics data from a characterization of the secretome of cardiac resident stromal cells (CRSCs) and dermal fibroblasts in order to compare their compositions. To evaluate the potential for cell proliferation, differentiation, migration, and adhesion, in vitro assays were performed and analyzed using a high-content imaging system. For each assay, specific analysis strategies were developed to quantify the generated data. These datasets provide insights into the differences and similarities between secretomes from different cell sources. It also describes methodologies for analyzing images from different in vitro assays using high-throughput automated imaging.
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Affiliation(s)
- Anny Waloski Robert
- Stem Cells Basic Biology Laboratory, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Parana 81350-010, Brazil
| | - Michel Batista
- Mass Spectrometry Facility RPT02H, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Parana 81350-010, Brazil
| | - Jhonatan Basso Lino
- Stem Cells Basic Biology Laboratory, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Parana 81350-010, Brazil
| | - Marco Augusto Stimamiglio
- Stem Cells Basic Biology Laboratory, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Parana 81350-010, Brazil
| | - Alessandra Melo de Aguiar
- Stem Cells Basic Biology Laboratory, Carlos Chagas Institute - FIOCRUZ/PR, Curitiba, Parana 81350-010, Brazil
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3
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Ayad O, Al Sayed ZR, Sebille S, Magaud C, Chapotte-Baldacci CA, Jayle C, Faivre JF, Gaborit N, Chatelier A, Bois P. In vitro differentiation of W8B2 + human cardiac stem cells: gene expression of ionic channels and spontaneous calcium activity. Cell Mol Biol Lett 2020; 25:50. [PMID: 33292162 PMCID: PMC7646077 DOI: 10.1186/s11658-020-00242-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 10/29/2020] [Indexed: 11/18/2022] Open
Abstract
Background Human cardiac stem cells expressing the W8B2 marker (W8B2+ CSCs) were recently identified and proposed as a new model of multipotent CSCs capable of differentiating into smooth muscle cells, endothelial cells and immature myocytes. Nevertheless, no characterization of ion channel or calcium activity during the differentiation of these stem cells has been reported. Methods The objectives of this study were thus to analyze (using the TaqMan Low-Density Array technique) the gene profile of W8B2+ CSCs pertaining to the regulation of ion channels, transporters and other players involved in the calcium homeostasis of these cells. We also analyzed spontaneous calcium activity (via the GCaMP calcium probe) during the in vitro differentiation of W8B2+ CSCs into cardiac myocytes. Results Our results show an entirely different electrophysiological genomic profile between W8B2+ CSCs before and after differentiation. Some specific nodal genes, such as Tbx3, HCN, ICaT, L, KV, and NCX, are overexpressed after this differentiation. In addition, we reveal spontaneous calcium activity or a calcium clock whose kinetics change during the differentiation process. A pharmacological study carried out on differentiated W8B2+ CSCs showed that the NCX exchanger and IP3 stores play a fundamental role in the generation of these calcium oscillations. Conclusions Taken together, the present results provide important information on ion channel expression and intrinsic calcium dynamics during the differentiation process of stem cells expressing the W8B2 marker.
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Affiliation(s)
- Oualid Ayad
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Zeina R Al Sayed
- CNRS, INSERM, l'institut du thorax, Université de Nantes, 44000, Nantes, France
| | - Stéphane Sebille
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Christophe Magaud
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | | | - Christophe Jayle
- CHU of Poitiers chirurgie cardiaque et thoracique, , Poitiers Cedex 09, France
| | - Jean-François Faivre
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Nathalie Gaborit
- CNRS, INSERM, l'institut du thorax, Université de Nantes, 44000, Nantes, France
| | - Aurélien Chatelier
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France
| | - Patrick Bois
- University of Poitiers Signalisation et Transports Ioniques Membranaires, EA7349, Poitiers Cedex 09, France.
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Leitolis A, Suss PH, Roderjan JG, Angulski ABB, da Costa FDA, Stimamiglio MA, Correa A. Human Heart Explant-Derived Extracellular Vesicles: Characterization and Effects on the In Vitro Recellularization of Decellularized Heart Valves. Int J Mol Sci 2019; 20:ijms20061279. [PMID: 30875722 PMCID: PMC6471048 DOI: 10.3390/ijms20061279] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2019] [Revised: 02/22/2019] [Accepted: 03/01/2019] [Indexed: 12/16/2022] Open
Abstract
Extracellular vesicles (EVs) are particles released from different cell types and represent key components of paracrine secretion. Accumulating evidence supports the beneficial effects of EVs for tissue regeneration. In this study, discarded human heart tissues were used to isolate human heart-derived extracellular vesicles (hH-EVs). We used nanoparticle tracking analysis (NTA) and transmission electron microscopy (TEM) to physically characterize hH-EVs and mass spectrometry (MS) to profile the protein content in these particles. The MS analysis identified a total of 1248 proteins. Gene ontology (GO) enrichment analysis in hH-EVs revealed the proteins involved in processes, such as the regulation of cell death and response to wounding. The potential of hH-EVs to induce proliferation, adhesion, angiogenesis and wound healing was investigated in vitro. Our findings demonstrate that hH-EVs have the potential to induce proliferation and angiogenesis in endothelial cells, improve wound healing and reduce mesenchymal stem-cell adhesion. Last, we showed that hH-EVs were able to significantly promote mesenchymal stem-cell recellularization of decellularized porcine heart valve leaflets. Altogether our data confirmed that hH-EVs modulate cellular processes, shedding light on the potential of these particles for tissue regeneration and for scaffold recellularization.
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Affiliation(s)
- Amanda Leitolis
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-Paraná, Curitiba 81350-010, Brazil.
| | - Paula Hansen Suss
- Pontifical Catholic University of Paraná-PUCPR, Curitiba 80215-901, Brazil.
| | | | - Addeli Bez Batti Angulski
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-Paraná, Curitiba 81350-010, Brazil.
| | | | - Marco Augusto Stimamiglio
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-Paraná, Curitiba 81350-010, Brazil.
| | - Alejandro Correa
- Laboratory of Basic Biology of Stem Cells, Carlos Chagas Institute, Fiocruz-Paraná, Curitiba 81350-010, Brazil.
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Secretome from resident cardiac stromal cells stimulates proliferation, cardiomyogenesis and angiogenesis of progenitor cells. Int J Cardiol 2016; 221:396-403. [PMID: 27404713 DOI: 10.1016/j.ijcard.2016.06.199] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Revised: 06/09/2016] [Accepted: 06/25/2016] [Indexed: 12/20/2022]
Abstract
In the heart, tissue-derived signals play a central role on recruiting/activating stem cell sources to induce cardiac lineage specification for maintenance of tissue homeostasis and repair. Cardiac resident stromal cells (CRSCs) may play a pivotal role in cardiac repair throughout their secretome. Here, we performed the characterization of CRSCs and their secretome by analyzing the composition of their culture-derived extracellular matrix (ECM) and conditioned medium (CM) and by investigating their potential effect on adipose-derived stem cell (ADSC) and progenitor cell behavior. We confirmed that CRSCs are a heterogeneous cell population whose secretome is composed by proteins related to cellular growth, immune response and cardiovascular development and function. We also observed that CRSC secretome was unable to change the behavior of ADSCs, except for proliferation. Additionally, CM from CRSCs demonstrated the potential to drive proliferation and cardiac differentiation of H9c2 cells and also the ability to induce angiogenesis in vitro. Our data suggest that the CRSCs can be a source of important modulating signals for cardiac progenitor cell recruitment/activation.
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Multiple Functions of MSCA-1/TNAP in Adult Mesenchymal Progenitor/Stromal Cells. Stem Cells Int 2015; 2016:1815982. [PMID: 26839555 PMCID: PMC4709781 DOI: 10.1155/2016/1815982] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/30/2015] [Indexed: 01/09/2023] Open
Abstract
Our knowledge about mesenchymal stem cells has considerably grown in the last years. Since the proof of concept of the existence of such cells in the 70s by Friedenstein et al., a growing mass of reports were conducted for a better definition of these cells and for the reevaluation from the term “mesenchymal stem cells” to the term “mesenchymal stromal cells (MSCs).” Being more than a semantic shift, concepts behind this new terminology reveal the complexity and the heterogeneity of the cells grouped in MSC family especially as these cells are present in nearly all adult tissues. Recently, mesenchymal stromal cell antigen-1 (MSCA-1)/tissue nonspecific alkaline phosphatase (TNAP) was described as a new cell surface marker of MSCs from different tissues. The alkaline phosphatase activity of this protein could be involved in wide range of MSC features described below from cell differentiation to immunomodulatory properties, as well as occurrence of pathologies. The present review aims to decipher and summarize the role of TNAP in progenitor cells from different tissues focusing preferentially on brain, bone marrow, and adipose tissue.
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7
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Hafizi M, Hajarizadeh A, Atashi A, Kalanaky S, Fakharzadeh S, Masoumi Z, Nazaran MH, Soleimani M. Nanochelating based nanocomplex, GFc7, improves quality and quantity of human mesenchymal stem cells during in vitro expansion. Stem Cell Res Ther 2015; 6:226. [PMID: 26597909 PMCID: PMC4657224 DOI: 10.1186/s13287-015-0216-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2015] [Revised: 04/30/2015] [Accepted: 10/28/2015] [Indexed: 02/06/2023] Open
Abstract
Introduction Human mesenchymal stem cells (hMSCs) have been approved for therapeutic applications. Despite the advances in this field, in vitro approaches are still required to improve the essential indices that would pave the way to a bright horizon for an efficient transplantation in the future. Nanotechnology could help to improve these approaches. Studies signified the important role of iron in stem cell metabolism and efficiency of copper chelation application for stem cell expansion Methods For the first time, based on novel Nanochelating technology, we design an iron containing copper chelator nano complex, GFc7 and examined on hMSCs during in vitro expansion. In this study, the hMSCs were isolated, characterized and expanded in vitro in two media (with or without GFc7). Then proliferation, cell viability, cell cycle analysis, surface markers, HLADR, pluripotency genes expression, homing and antioxidative defense at genes and protein expression were investigated. Also we analyzed the spontaneous differentiation and examined osteogenic and lipogenic differentiation. Results GFc7 affected the expression of key genes, improving both the stemness and fitness of the cells in a precise and balanced manner. We observed significant increases in cell proliferation, enhanced expression of pluripotency genes and homing markers, improved antioxidative defense, repression of genes involved in spontaneous differentiation and exposing the hMSCs to differentiation medium indicated that pretreatment with GFc7 increased the quality and rate of differentiation. Conclusions Thus, GFc7 appears to be a potential new supplement for cell culture medium for increasing the efficiency of transplantation.
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Affiliation(s)
- Maryam Hafizi
- Stem Cell Technology Research Center, Tehran, Iran. .,Department of Research and Development, Sodour Ahrar Shargh Company, Tehran, Iran.
| | | | - Amir Atashi
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Somayeh Kalanaky
- Department of Research and Development, Sodour Ahrar Shargh Company, Tehran, Iran.
| | - Saideh Fakharzadeh
- Department of Research and Development, Sodour Ahrar Shargh Company, Tehran, Iran.
| | | | | | - Masoud Soleimani
- Department of Hematology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Zhang Y, Sivakumaran P, Newcomb AE, Hernandez D, Harris N, Khanabdali R, Liu GS, Kelly DJ, Pébay A, Hewitt AW, Boyle A, Harvey R, Morrison WA, Elliott DA, Dusting GJ, Lim SY. Cardiac Repair With a Novel Population of Mesenchymal Stem Cells Resident in the Human Heart. Stem Cells 2015; 33:3100-13. [PMID: 26184084 DOI: 10.1002/stem.2101] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 05/26/2015] [Accepted: 06/14/2015] [Indexed: 01/20/2023]
Abstract
Cardiac resident stem cells (CRSCs) hold much promise to treat heart disease but this remains a controversial field. Here, we describe a novel population of CRSCs, which are positive for W8B2 antigen and were obtained from adult human atrial appendages. W8B2(+) CRSCs exhibit a spindle-shaped morphology, are clonogenic and capable of self-renewal. W8B2(+) CRSCs show high expression of mesenchymal but not hematopoietic nor endothelial markers. W8B2(+) CRSCs expressed GATA4, HAND2, and TBX5, but not C-KIT, SCA-1, NKX2.5, PDGFRα, ISL1, or WT1. W8B2(+) CRSCs can differentiate into cardiovascular lineages and secrete a range of cytokines implicated in angiogenesis, chemotaxis, inflammation, extracellular matrix remodeling, cell growth, and survival. In vitro, conditioned medium collected from W8B2(+) CRSCs displayed prosurvival, proangiogenic, and promigratory effects on endothelial cells, superior to that of other adult stem cells tested, and additionally promoted survival and proliferation of neonatal rat cardiomyocytes. Intramyocardial transplantation of human W8B2(+) CRSCs into immunocompromised rats 1 week after myocardial infarction markedly improved cardiac function (∼40% improvement in ejection fraction) and reduced fibrotic scar tissue 4 weeks after infarction. Hearts treated with W8B2(+) CRSCs showed less adverse remodeling of the left ventricle, a greater number of proliferating cardiomyocytes (Ki67(+) cTnT(+) cells) in the remote region, higher myocardial vascular density, and greater infiltration of CD163(+) cells (a marker for M2 macrophages) into the border zone and scar regions. In summary, W8B2(+) CRSCs are distinct from currently known CRSCs found in human hearts, and as such may be an ideal cell source to repair myocardial damage after infarction.
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Affiliation(s)
- Yuan Zhang
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | | | - Andrew E Newcomb
- Department of Surgery, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,Department of Cardiothoracic Surgery, St. Vincent's Hospital, Melbourne, Victoria, Australia.,Vascular and Cardiac Surgery, The Cardiovascular Research Centre (CvRC), Australian Catholic University, Fitzroy, Victoria, Australia
| | - Damián Hernandez
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia
| | - Nicole Harris
- O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia
| | - Ramin Khanabdali
- Department of Surgery, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia
| | - Guei-Sheung Liu
- Department of Ophthalmology, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Eye Research Australia & Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
| | - Darren J Kelly
- Department of Medicine, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia
| | - Alice Pébay
- Department of Ophthalmology, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Eye Research Australia & Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
| | - Alex W Hewitt
- Department of Ophthalmology, University of Melbourne, Melbourne, Victoria, Australia.,Centre for Eye Research Australia & Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
| | - Andrew Boyle
- School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - Richard Harvey
- Developmental and Stem Cell Biology, Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales, Australia
| | - Wayne A Morrison
- Department of Surgery, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia.,AORTEC, Faculty of Health Sciences, Australian Catholic University, Fitzroy, Victoria, Australia
| | - David A Elliott
- Cardiac Development, Murdoch Childrens Research Institute, The Royal Children's Hospital, Parkville, Victoria, Australia
| | - Gregory J Dusting
- Department of Surgery, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,Department of Ophthalmology, University of Melbourne, Melbourne, Victoria, Australia.,O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia.,Centre for Eye Research Australia & Royal Victorian Eye and Ear Hospital, Melbourne, Victoria, Australia
| | - Shiang Y Lim
- Department of Surgery, St. Vincent's Hospital, University of Melbourne, Melbourne, Victoria, Australia.,O'Brien Institute Department, St. Vincent's Institute of Medical Research, Fitzroy, Victoria, Australia
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9
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Rezai Rad M, Liu D, He H, Brooks H, Xiao M, Wise GE, Yao S. The role of dentin matrix protein 1 (DMP1) in regulation of osteogenic differentiation of rat dental follicle stem cells (DFSCs). Arch Oral Biol 2015; 60:546-56. [PMID: 25596638 PMCID: PMC4352403 DOI: 10.1016/j.archoralbio.2014.12.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2014] [Revised: 11/06/2014] [Accepted: 12/18/2014] [Indexed: 11/16/2022]
Abstract
OBJECTIVES Primary isolated dental follicle stem cells (DFSCs) possess a strong osteogenesis capability, and such capability is reduced during in vitro culture. Because dentin matrix protein 1 (DMP1) is essential in the maturation of osteoblasts, our objectives were to determine (1) the expression of DMP1 in the DFSCs, (2) the correlation between DMP1 expression and osteogenic capability of DFSCs, and (3) the ability of DMP1 to promote osteogenic differentiation of DFSCs. METHODS DFSCs and their non-stem cell counterpart dental follicle cells (DFC) were established from postnatal rat pups. Expression of DMP1 in the DFSCs and DFC was determined using real-time RT-PCR and western blotting. Different passages of DFSCs were subjected to osteogenic induction. The correlation between osteogenesis and DMP1 expression was analyzed. Then, expression of DMP1 in the DFSCs was knocked-down using siRNA, followed by osteogenic induction to evaluate the effect of DMP1-knockdown. Finally, the late passage DFSCs with reduced DMP1 expression and osteogenic capability were cultured in osteogenic induction medium containing mouse recombinant DMP1 (mrDMP1) to determine if DMP1 can restore osteogenesis of DFSCs. RESULTS DFSCs expressed much higher levels of DMP1 than did DFC. DMP1 expression was correlated with the osteogenic capability of DFSCs. Knockdown of DMP1 expression markedly decreased the osteogenesis and osteogenic gene expression in the DFSCs whereas adding mrDMP1 protein to the osteogenic induction medium enhanced osteogenesis. CONCLUSIONS DMP1 is highly expressed in the DFSCs, but minimally expressed in non-stem cell DFC. DMP1 appears to play an important role for osteogenic differentiation of the DFSCs.
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Affiliation(s)
- Maryam Rezai Rad
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Dawen Liu
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Hongzhi He
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Hunter Brooks
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Mei Xiao
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Gary E Wise
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
| | - Shaomian Yao
- Department of Comparative Biomedical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA.
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