101
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Futrega K, Atkinson K, Lott WB, Doran MR. Spheroid Coculture of Hematopoietic Stem/Progenitor Cells and Monolayer Expanded Mesenchymal Stem/Stromal Cells in Polydimethylsiloxane Microwells Modestly Improves In Vitro Hematopoietic Stem/Progenitor Cell Expansion. Tissue Eng Part C Methods 2017; 23:200-218. [PMID: 28406754 PMCID: PMC5397247 DOI: 10.1089/ten.tec.2016.0329] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
While two-dimensional (2D) monolayers of mesenchymal stem/stromal cells (MSCs) have been shown to enhance hematopoietic stem/progenitor cell (HSPC) expansion in vitro, expanded cells do not engraft long term in human recipients. This outcome is attributed to the failure of 2D culture to recapitulate the bone marrow (BM) niche signal milieu. Herein, we evaluated the capacity of a novel three-dimensional (3D) coculture system to support HSPC expansion in vitro. A high-throughput polydimethylsiloxane (PDMS) microwell platform was used to manufacture thousands of uniform 3D multicellular coculture spheroids. Relative gene expression in 3D spheroid versus 2D adherent BM-derived MSC cultures was characterized and compared with literature reports. We evaluated coculture spheroids, each containing 25-400 MSCs and 10 umbilical cord blood (CB)-derived CD34+ progenitor cells. At low exogenous cytokine concentrations, 2D and 3D MSC coculture modestly improved overall hematopoietic cell and CD34+ cell expansion outcomes. By contrast, a substantial increase in CD34+CD38- cell yield was observed in PDMS microwell cultures, regardless of the presence or absence of MSCs. This outcome indicated that CD34+CD38- cell culture yield could be increased using the microwell platform alone, even without MSC coculture support. We found that the increase in CD34+CD38- cell yield observed in PDMS microwell cultures did not translate to enhanced engraftment in NOD/SCID gamma (NSG) mice or a modification in the relative human hematopoietic lineages established in engrafted mice. In summary, there was no statistical difference in CD34+ cell yield from 2D or 3D cocultures, and MSC coculture support provided only modest benefit in either geometry. While the high-throughput 3D microwell platform may provide a useful model system for studying cells in coculture, further optimization will be required to generate HSPC yields suitable for use in clinical applications.
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Affiliation(s)
- Kathryn Futrega
- 1 Stem Cell Therapies Laboratory, Translational Research Institute, Queensland University of Technology , Brisbane, Australia
| | - Kerry Atkinson
- 1 Stem Cell Therapies Laboratory, Translational Research Institute, Queensland University of Technology , Brisbane, Australia
| | - William B Lott
- 1 Stem Cell Therapies Laboratory, Translational Research Institute, Queensland University of Technology , Brisbane, Australia
| | - Michael R Doran
- 1 Stem Cell Therapies Laboratory, Translational Research Institute, Queensland University of Technology , Brisbane, Australia .,2 Mater Research Institute - University of Queensland, Translational Research Institute , Brisbane, Australia
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102
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Xu C, Fu F, Li X, Zhang S. Mesenchymal stem cells maintain the microenvironment of central nervous system by regulating the polarization of macrophages/microglia after traumatic brain injury. Int J Neurosci 2017; 127:1124-1135. [PMID: 28464695 DOI: 10.1080/00207454.2017.1325884] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Mesenchymal stem cells (MSCs), which are regarded as promising candidates for cell replacement therapies, are able to regulate immune responses after traumatic brain injury (TBI). Secondary immune response following the mechanical injury is the essential factor leading to the necrosis and apoptosis of neural cells during and after the cerebral edema has subsided and there is lack of efficient agent that can mitigate such neuroinflammation in the clinical application. By means of three molecular pathways (prostaglandin E2 (PGE2), tumor-necrosis-factor-inducible gene 6 protein (TSG-6), and progesterone receptor (PR) and glucocorticoid receptors (GR)), MSCs induce the activation of macrophages/microglia and drive them polarize into the M2 phenotypes, which inhibits the release of pro-inflammatory cytokines and promotes tissue repair and nerve regeneration. The regulation of MSCs and the polarization of macrophages/microglia are dynamically changing based on the inflammatory environment. Under the stimulation of platelet lysate (PL), MSCs also promote the release of pro-inflammatory cytokines. Meanwhile, the statue of macrophages/microglia exerts significant effects on the survival, proliferation, differentiation and activation of MSCs by changing the niche of cells. They form positive feedback loops in maintaining the homeostasis after TBI to relieving the secondary injury and promoting tissue repair. MSC therapies have obtained great achievements in several central nervous system disease clinical trials, which will accelerate the application of MSCs in TBI treatment.
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Affiliation(s)
- Chao Xu
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
| | - Feng Fu
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
| | - Xiaohong Li
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
| | - Sai Zhang
- a Institute of Traumatic Brain Injury and Neurology, Pingjin Hospital , Logistics University of Chinese People's Armed Police Forces , Tianjin 300162 , China
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103
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Westenfelder C, Gooch A, Hu Z, Ahlstrom J, Zhang P. Durable Control of Autoimmune Diabetes in Mice Achieved by Intraperitoneal Transplantation of "Neo-Islets," Three-Dimensional Aggregates of Allogeneic Islet and "Mesenchymal Stem Cells". Stem Cells Transl Med 2017; 6:1631-1643. [PMID: 28467694 PMCID: PMC5689775 DOI: 10.1002/sctm.17-0005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 03/01/2017] [Accepted: 03/15/2017] [Indexed: 02/06/2023] Open
Abstract
Novel interventions that reestablish endogenous insulin secretion and thereby halt progressive end-organ damage and prolong survival of patients with autoimmune Type 1 diabetes mellitus (T1DM) are urgently needed. While this is currently accomplished with allogeneic pancreas or islet transplants, their utility is significantly limited by both the scarcity of organ donors and life-long need for often-toxic antirejection drugs. Coadministering islets with bone marrow-derived mesenchymal stem cells (MSCs) that exert robust immune-modulating, anti-inflammatory, anti-apoptotic, and angiogenic actions, improves intrahepatic islet survival and function. Encapsulation of insulin-producing cells to prevent immune destruction has shown both promise and failures. Recently, stem cell-derived insulin secreting β-like cells induced euglycemia in diabetic animals, although their clinical use would still require encapsulation or anti-rejection drugs. Instead of focusing on further improvements in islet transplantation, we demonstrate here that the intraperitoneal administration of islet-sized "Neo-Islets" (NIs), generated by in vitro coaggregation of allogeneic, culture-expanded islet cells with high numbers of immuno-protective and cyto-protective MSCs, resulted in their omental engraftment in immune-competent, spontaneously diabetic nonobese diabetic (NOD) mice. This achieved long-term glycemic control without immunosuppression and without hypoglycemia. In preparation for an Food and Drug Administration-approved clinical trial in dogs with T1DM, we show that treatment of streptozotocin-diabetic NOD/severe combined immunodeficiency mice with identically formed canine NIs produced durable euglycemia, exclusively mediated by dog-specific insulin. We conclude that this novel technology has significant translational relevance for canine and potentially clinical T1DM as it effectively addresses both the organ donor scarcity (>80 therapeutic NI doses/donor pancreas can be generated) and completely eliminates the need for immunosuppression. Stem Cells Translational Medicine 2017;6:1631-1643.
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Affiliation(s)
- Christof Westenfelder
- Department of Medicine, Division of Nephrology, University of Utah and VA Medical Centers, Salt Lake City, Utah, USA
| | - Anna Gooch
- SymbioCellTech, LLC, Salt Lake City, Utah, USA
| | - Zhuma Hu
- SymbioCellTech, LLC, Salt Lake City, Utah, USA
| | | | - Ping Zhang
- SymbioCellTech, LLC, Salt Lake City, Utah, USA
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104
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Petrenko Y, Syková E, Kubinová Š. The therapeutic potential of three-dimensional multipotent mesenchymal stromal cell spheroids. Stem Cell Res Ther 2017; 8:94. [PMID: 28446248 PMCID: PMC5406927 DOI: 10.1186/s13287-017-0558-6] [Citation(s) in RCA: 151] [Impact Index Per Article: 21.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The efficiency of clinical trials involving transplantation of multipotent mesenchymal stromal cells (MSCs) is often insufficient due to harsh conditions present within the target tissue including hypoxia, low nutrient supply as well as inflammatory reactions. This indicates the necessity for optimization of cell-based therapy approaches which might include either modification of the cell manufacturing process or specific cell pretreatment procedures prior to transplantation. Recent reports confirm evidence that the aggregation of MSCs into three-dimensional (3D) multicellular spheroids results in enhancement of the overall therapeutic potential of cells, by improving the anti-inflammatory and angiogenic properties, stemness and survival of MSCs after transplantation. Such an MSCs spheroid generation approach may open new opportunities for the enlargement of MSCs applications in clinical research and therapy. However, the unification and optimization of 3D spheroid generation techniques, including the selection of appropriate clinical-grade culture conditions and methods for their large-scale production, are still of great importance. The current review addresses questions regarding therapeutic-associated properties of 3D multicellular MSCs spheroids in vitro and during preclinical animal studies, with special attention to the possibilities of translating these research achievements toward further clinical manufacturing and applications.
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Affiliation(s)
- Yuriy Petrenko
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine AS CR v. v. i, Vídeňská 1083, 14220, Prague 4-Krč, Czech Republic.
| | - Eva Syková
- Department of Neuroscience, Charles University, Second Faculty of Medicine, V Uvalu 84, 15006, Prague, Czech Republic
| | - Šárka Kubinová
- Department of Biomaterials and Biophysical Methods, Institute of Experimental Medicine AS CR v. v. i, Vídeňská 1083, 14220, Prague 4-Krč, Czech Republic
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105
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Murphy KC, Whitehead J, Falahee PC, Zhou D, Simon SI, Leach JK. Multifactorial Experimental Design to Optimize the Anti-Inflammatory and Proangiogenic Potential of Mesenchymal Stem Cell Spheroids. Stem Cells 2017; 35:1493-1504. [PMID: 28276602 DOI: 10.1002/stem.2606] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 02/13/2017] [Accepted: 02/19/2017] [Indexed: 12/17/2022]
Abstract
Mesenchymal stem cell therapies promote wound healing by manipulating the local environment to enhance the function of host cells. Aggregation of mesenchymal stem cells (MSCs) into three-dimensional spheroids increases cell survival and augments their anti-inflammatory and proangiogenic potential, yet there is no consensus on the preferred conditions for maximizing spheroid function in this application. The objective of this study was to optimize conditions for forming MSC spheroids that simultaneously enhance their anti-inflammatory and proangiogenic nature. We applied a design of experiments (DOE) approach to determine the interaction between three input variables (number of cells per spheroid, oxygen tension, and inflammatory stimulus) on MSC spheroids by quantifying secretion of prostaglandin E2 (PGE2 ) and vascular endothelial growth factor (VEGF), two potent molecules in the MSC secretome. DOE results revealed that MSC spheroids formed with 40,000 cells per spheroid in 1% oxygen with an inflammatory stimulus (Spheroid 1) would exhibit enhanced PGE2 and VEGF production versus those formed with 10,000 cells per spheroid in 21% oxygen with no inflammatory stimulus (Spheroid 2). Compared to Spheroid 2, Spheroid 1 produced fivefold more PGE2 and fourfold more VEGF, providing the opportunity to simultaneously upregulate the secretion of these factors from the same spheroid. The spheroids induced macrophage polarization, sprout formation with endothelial cells, and keratinocyte migration in a human skin equivalent model-demonstrating efficacy on three key cell types that are dysfunctional in chronic non-healing wounds. We conclude that DOE-based analysis effectively identifies optimal culture conditions to enhance the anti-inflammatory and proangiogenic potential of MSC spheroids. Stem Cells 2017;35:1493-1504.
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Affiliation(s)
- Kaitlin C Murphy
- Department of Biomedical Engineering, University of California Davis, Davis, California, USA
| | - Jacklyn Whitehead
- Department of Biomedical Engineering, University of California Davis, Davis, California, USA
| | - Patrick C Falahee
- Department of Biomedical Engineering, University of California Davis, Davis, California, USA
| | - Dejie Zhou
- Department of Biomedical Engineering, University of California Davis, Davis, California, USA
| | - Scott I Simon
- Department of Biomedical Engineering, University of California Davis, Davis, California, USA
| | - J Kent Leach
- Department of Biomedical Engineering, University of California Davis, Davis, California, USA.,Department of Orthopaedic Surgery, School of Medicine, University of California Davis, Sacramento, California, USA
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106
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Ylostalo JH, Bazhanov N, Mohammadipoor A, Bartosh TJ. Production and Administration of Therapeutic Mesenchymal Stem/Stromal Cell (MSC) Spheroids Primed in 3-D Cultures Under Xeno-free Conditions. J Vis Exp 2017:55126. [PMID: 28362380 PMCID: PMC5409342 DOI: 10.3791/55126] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Mesenchymal stem/stromal cells (MSCs) hold great promise in bioengineering and regenerative medicine. MSCs can be isolated from multiple adult tissues via their strong adherence to tissue culture plastic and then further expanded in vitro, most commonly using fetal bovine serum (FBS). Since FBS can cause MSCs to become immunogenic, its presence in MSC cultures limits both clinical and experimental applications of the cells. Therefore, studies employing chemically defined xeno-free (XF) media for MSC cultures are extremely valuable. Many beneficial effects of MSCs have been attributed to their ability to regulate inflammation and immunity, mainly through secretion of immunomodulatory factors such as tumor necrosis factor-stimulated gene 6 (TSG6) and prostaglandin E2 (PGE2). However, MSCs require activation to produce these factors and since the effect of MSCs is often transient, great interest has emerged to discover ways of pre-activating the cells prior to their use, thus eliminating the lag time for activation in vivo. Here we present protocols to efficiently activate or prime MSCs in three-dimensional (3D) cultures under chemically defined XF conditions and to administer these pre-activated MSCs in vivo. Specifically, we first describe methods to generate spherical MSC micro-tissues or 'spheroids' in hanging drops using XF medium and demonstrate how the spheres and conditioned medium (CM) can be harvested for various applications. Second, we describe gene expression screens and in vitro functional assays to rapidly assess the level of MSC activation in spheroids, emphasizing the anti-inflammatory and anti-cancer potential of the cells. Third, we describe a novel method to inject intact MSC spheroids into the mouse peritoneal cavity for in vivo efficacy testing. Overall, the protocols herein overcome major challenges of obtaining pre-activated MSCs under chemically defined XF conditions and provide a flexible system to administer MSC spheroids for therapies.
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Affiliation(s)
| | | | - Arezoo Mohammadipoor
- Multi-Organ Support Technology Task Area, U.S. Army Institute of Surgical Research
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107
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Carty F, Mahon BP, English K. The influence of macrophages on mesenchymal stromal cell therapy: passive or aggressive agents? Clin Exp Immunol 2017; 188:1-11. [PMID: 28108980 DOI: 10.1111/cei.12929] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 01/16/2017] [Indexed: 12/29/2022] Open
Abstract
Mesenchymal stromal cells (MSC) have emerged as promising cell therapies for multiple conditions based on demonstrations of their potent immunomodulatory and regenerative capacities in models of inflammatory disease. Understanding the effects of MSC on T cells has dominated the majority of work carried out in this field to date; recently, however, a number of studies have shown that the therapeutic effect of MSC requires the presence of macrophages. It is timely to review the mechanisms and manner by which MSC modulate macrophage populations in order to design more effective MSC therapies and clinical studies. A complex cross-talk exists through which MSC and macrophages communicate, a communication that is not controlled exclusively by MSC. Here, we examine the evidence that suggests that MSC not only respond to inflammatory macrophages and adjust their secretome accordingly, but also that macrophages respond to encounters with MSC, creating a feedback loop which contributes to the immune regulation observed following MSC therapy. Future studies examining the effects of MSC on macrophages should consider the antagonistic role that macrophages play in this exchange.
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Affiliation(s)
- F Carty
- Institute of Immunology, Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
| | - B P Mahon
- Institute of Immunology, Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
| | - K English
- Institute of Immunology, Department of Biology, Maynooth University, Maynooth, County Kildare, Ireland
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108
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Tsai AC, Liu Y, Yuan X, Chella R, Ma T. Aggregation kinetics of human mesenchymal stem cells under wave motion. Biotechnol J 2017; 12. [PMID: 27996210 DOI: 10.1002/biot.201600448] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 12/16/2016] [Accepted: 12/19/2016] [Indexed: 01/01/2023]
Abstract
Human mesenchymal stem cells (hMSCs) are primary candidates in cell therapy and regenerative medicine but preserving their therapeutic potency following culture expansion is a significant challenge. hMSCs can spontaneously assemble into three-dimensional (3D) aggregates that enhance their regenerative properties. The present study investigated the impact of hydrodynamics conditions on hMSC aggregation kinetics under controlled rocking motion. While various laboratory methods have been developed for hMSC aggregate production, the rocking platform provides gentle mixing and can be scaled up using large bags as in wave motion bioreactors. The results show that the hMSC aggregation is mediated by cell adhesion molecules and that aggregate size distribution is influenced by seeding density, culture time, and hydrodynamic conditions. The analysis of fluid shear stress by COMSOL indicated that aggregate size distribution is inversely correlated with shear stress and that the rocking angle had a more pronounced effect on aggregate size distribution than the rocking speed due to its impact on shear stress. hMSC aggregates obtained from the bioreactor exhibit increased stemness, migratory properties, and expression of angiogenic factors. The results demonstrate the potential of the rocking platform to produce hMSC aggregates with controlled size distribution for therapeutic application.
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Affiliation(s)
- Ang-Chen Tsai
- Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, USA
| | - Yijun Liu
- Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, USA
| | - Xuegang Yuan
- Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, USA
| | - Ravindran Chella
- Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, USA
| | - Teng Ma
- Department of Chemical and Biomedical Engineering, Florida State University, Tallahassee, FL, USA
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109
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Signal Factors Secreted by 2D and Spheroid Mesenchymal Stem Cells and by Cocultures of Mesenchymal Stem Cells Derived Microvesicles and Retinal Photoreceptor Neurons. Stem Cells Int 2017; 2017:2730472. [PMID: 28194184 PMCID: PMC5286488 DOI: 10.1155/2017/2730472] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 12/08/2016] [Accepted: 12/26/2016] [Indexed: 02/07/2023] Open
Abstract
We aim to identify levels of signal factors secreted by MSCs cultured in 2D monolayers (2D-MSCs), spheroids (spheroids MSCs), and cocultures of microvesicles (MVs) derived from 2D-MSCs or spheroid MSCs and retinal photoreceptor neurons. We seeded 2D-MSCs, spheroid MSCs, and cells derived from spheroids MSCs at equal numbers. MVs isolated from all 3 culture conditions were incubated with 661W cells. Levels of 51 signal factors in conditioned medium from those cultured conditions were quantified with bead-based assay. We found that IL-8, IL-6, and GROα were the top three most abundant signal factors. Moreover, compared to 2D-MSCs, levels of 11 cytokines and IL-2Rα were significantly increased in conditioned medium from spheroid MSCs. Finally, to test if enhanced expression of these factors reflects altered immunomodulating activities, we assessed the effect of 2D-MSC-MVs and 3D-MSC-MVs on CD14+ cell chemoattraction. Compared to 2D-MSC-MVs, 3D-MSC-MVs significantly decreased the chemotactic index of CD14+ cells. Our results suggest that spheroid culture conditions improve the ability of MSCs to selectively secrete signal factors. Moreover, 3D-MSC-MVs also possessed an enhanced capability to promote signal factors secretion compared to 2D-MSC-MVs and may possess enhanced immunomodulating activities and might be a better regenerative therapy for retinal degenerative diseases.
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110
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Morioka C, Komaki M, Taki A, Honda I, Yokoyama N, Iwasaki K, Iseki S, Morio T, Morita I. Neuroprotective effects of human umbilical cord-derived mesenchymal stem cells on periventricular leukomalacia-like brain injury in neonatal rats. Inflamm Regen 2017; 37:1. [PMID: 29259700 PMCID: PMC5725779 DOI: 10.1186/s41232-016-0032-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/11/2016] [Indexed: 01/15/2023] Open
Abstract
Background Periventricular leukomalacia (PVL) is a type of multifactorial brain injury that causes cerebral palsy in premature infants. To date, effective therapies for PVL have not been available. In this study, we examined whether mesenchymal stem cells (MSCs) possess neuroprotective property in a lipopolysaccharide (LPS)-induced neonatal rat PVL-like brain injury. Methods Human umbilical cord-derived MSCs (UCMSCs) were used in this study. Four-day-old rats were intraperitoneally injected with LPS (15 mg/kg) to cause the PVL-like brain injury and were treated immediately after the LPS-injection with UCMSCs, conditioned medium prepared from MSCs (UCMSC-CM) or interferon-gamma (IFN-γ)-pretreated MSC (IFN-γ-UCMSC-CM). To assess systemic reaction to LPS-infusion, IFN-γ in sera was measured by ELISA. The brain injury was evaluated by immunostaining of myelin basic protein (MBP) and caspase-3. RT-PCR was used to quantitate pro-inflammatory cytokine levels in the brain injury, and the expression of tumor necrosis factor-stimulated gene-6 (TSG-6) or indoleamine 2,3-dioxygenase (IDO) to evaluate anti-inflammatory or immunomodulatory molecules in UCMSCs, respectively. A cytokine and growth factor array was employed to investigate the cytokine secretion profiles of UCMSCs. Results Elevated serum IFN-γ was observed in LPS-infused rats. The expression of IL-6, tumor necrosis factor-alpha (TNF-α), IL-1ß, and monocyte chemoattractant protein-1 (MCP-1) were increased in the brain by LPS-infusion in comparison to saline-infused control. LPS-infusion increased caspase-3-positive cells and decreased MBP-positive area in neonatal rat brains. A cytokine and growth factor array demonstrated that UCMSCs secreted various cytokines and growth factors. UCMSCs significantly suppressed IL-1ß expression in the brains and reversed LPS-caused decrease in MBP-positive area. UCMSC-CM did not reverse MBP-positive area in the injured brain, while IFN-γ-UCMSC-CM significantly increased MBP-positive area compared to control (no treatment). IFN-γ-pretreatment increased TSG-6 and IDO expression in UCMSCs. Conclusion We demonstrated that bolus intraperitoneal infusion of LPS caused PVL-like brain injury in neonatal rats and UCMSCs infusion ameliorated dysmyelination in LPS-induced neonatal rat brain injury. Conditioned medium prepared from IFN-γ-pretreated UCMSCs significantly reversed the brain damage in comparison with UCMSC-CM, suggesting that the preconditioning of UCMSCs would improve their neuroprotective effects. The mechanisms underline the therapeutic effects of MSCs on PVL need continued investigation to develop a more effective treatment.
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Affiliation(s)
- Chikako Morioka
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan.,Department of Cellular Physiological Chemistry, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Motohiro Komaki
- Department of Nanomedicine (DNP), Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Atsuko Taki
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Izumi Honda
- Department of Cellular Physiological Chemistry, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Naoki Yokoyama
- Life Science Laboratory, Research and Development Center, Dai Nippon Printing Co., Ltd., 1-1-1 kaga-cho, Shinjuku-ku, Tokyo, 162-8001 Japan
| | - Kengo Iwasaki
- Department of Nanomedicine (DNP), Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Sachiko Iseki
- Department of Molecular Craniofacial Embryology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Tomohiro Morio
- Department of Pediatrics and Developmental Biology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
| | - Ikuo Morita
- Department of Cellular Physiological Chemistry, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-Ku, Tokyo, 113-8510 Japan
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111
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Mohammadipoor A, Lee RH, Prockop DJ, Bartosh TJ. Stanniocalcin-1 attenuates ischemic cardiac injury and response of differentiating monocytes/macrophages to inflammatory stimuli. Transl Res 2016; 177:127-142. [PMID: 27469269 PMCID: PMC5099094 DOI: 10.1016/j.trsl.2016.06.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/09/2016] [Revised: 06/22/2016] [Accepted: 06/30/2016] [Indexed: 12/14/2022]
Abstract
Stanniocalcin-1 (STC-1) is a multifunctional glycoprotein with antioxidant and anti-inflammatory properties. Ischemic myocardial necrosis generates "danger" signals that perpetuate detrimental inflammatory reactions often involving monocyte recruitment and their subsequent differentiation into proinflammatory macrophages. Therefore, we evaluated the effects of recombinant STC-1 (rSTC-1) on monocyte phenotype and in a mouse model of myocardial infarction. Using an established protocol to differentiate human monocytes into macrophages, we demonstrated that rSTC-1 did not alter morphology of the differentiated cells, toll-like receptor (TLR) 4 expression, or expression of the myeloid cell marker CD11b. However, rSTC-1 treatment before differentiation attenuated the rise in the expression of CD14, a TLR4 coreceptor and pathogen sensor that propagates innate immune responses, and suppressed levels of inflammatory cytokines produced by the differentiated cells in response to the CD14-TLR4 ligand lipopolysaccharide. Moreover, rSTC-1 treatment reduced CD14 expression in monocytes stimulated with endogenous danger signals. Interestingly, the effects of rSTC-1 on CD14 expression were not reproduced by a superoxide dismutase mimetic. In mice with induced myocardial infarcts, intravenous administration of rSTC-1 decreased CD14 expression in the heart as well as levels of tumor necrosis factor alpha, C-X-C motif ligand 2, interleukin 1 beta, and myeloperoxidase. It also suppressed the formation of scar tissue while enhancing cardiac function. The data suggests that one of the beneficial effects of STC-1 might be attributed to suppression of CD14 on recruited monocytes and macrophages that limits their inflammatory response. STC-1 may be a promising therapy to protect the heart and other tissues from ischemic injury.
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Affiliation(s)
- Arezoo Mohammadipoor
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, College of Medicine, Temple, Tex, USA
| | - Ryang Hwa Lee
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, College of Medicine, Temple, Tex, USA
| | - Darwin J Prockop
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, College of Medicine, Temple, Tex, USA
| | - Thomas J Bartosh
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, College of Medicine, Temple, Tex, USA.
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112
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Crowder SW, Balikov DA, Boire TC, McCormack D, Lee JB, Gupta MK, Skala MC, Sung HJ. Copolymer-Mediated Cell Aggregation Promotes a Proangiogenic Stem Cell Phenotype In Vitro and In Vivo. Adv Healthc Mater 2016; 5:2866-2871. [PMID: 27717208 PMCID: PMC5152909 DOI: 10.1002/adhm.201600819] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 08/19/2016] [Indexed: 12/31/2022]
Abstract
Material-induced cell aggregation drives a proangiogenic expression profile. Copolymer substrates containing cell-repellent and cell-adhesive domains force the aggregation of human mesenchymal stem cells, which results in enhanced tubulogenesis in vitro and stabilization of vasculature in vivo. These findings can be used to design instructive biomaterial scaffolds for clinical use.
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Affiliation(s)
- Spencer W. Crowder
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Daniel A. Balikov
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Timothy C. Boire
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Devin McCormack
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Jung Bok Lee
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Mukesh K. Gupta
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Melissa C. Skala
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
| | - Hak-Joon Sung
- Department of Biomedical Engineering, Vanderbilt University, Nashville, TN 37235, USA
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113
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Bartosh TJ, Ullah M, Zeitouni S, Beaver J, Prockop DJ. Cancer cells enter dormancy after cannibalizing mesenchymal stem/stromal cells (MSCs). Proc Natl Acad Sci U S A 2016; 113:E6447-E6456. [PMID: 27698134 PMCID: PMC5081643 DOI: 10.1073/pnas.1612290113] [Citation(s) in RCA: 117] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Patients with breast cancer often develop malignant regrowth of residual drug-resistant dormant tumor cells years after primary treatment, a process defined as cancer relapse. Deciphering the causal basis of tumor dormancy therefore has obvious therapeutic significance. Because cancer cell behavior is strongly influenced by stromal cells, particularly the mesenchymal stem/stromal cells (MSCs) that are actively recruited into tumor-associated stroma, we assessed the impact of MSCs on breast cancer cell (BCC) dormancy. Using 3D cocultures to mimic the cellular interactions of an emerging tumor niche, we observed that MSCs sequentially surrounded the BCCs, promoted formation of cancer spheroids, and then were internalized/degraded through a process resembling the well-documented yet ill-defined clinical phenomenon of cancer cell cannibalism. This suspected feeding behavior was less appreciable in the presence of a rho kinase inhibitor and in 2D monolayer cocultures. Notably, cannibalism of MSCs enhanced survival of BCCs deprived of nutrients but suppressed their tumorigenicity, together suggesting the cancer cells entered dormancy. Transcriptome profiles revealed that the resulting BCCs acquired a unique molecular signature enriched in prosurvival factors and tumor suppressors, as well as inflammatory mediators that demarcate the secretome of senescent cells, also referred to as the senescence-associated secretory phenotype. Overall, our results provide intriguing evidence that cancer cells under duress enter dormancy after cannibalizing MSCs. Importantly, our practical 3D coculture model could provide a valuable tool to understand the antitumor activity of MSCs and cell cannibalism further, and therefore open new therapeutic avenues for the prevention of cancer recurrence.
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Affiliation(s)
- Thomas J Bartosh
- Institute for Regenerative Medicine, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76502; Medical Physiology, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76504
| | - Mujib Ullah
- Institute for Regenerative Medicine, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76502
| | - Suzanne Zeitouni
- Institute for Regenerative Medicine, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76502
| | - Joshua Beaver
- Institute for Regenerative Medicine, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76502; Medical Physiology, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76504
| | - Darwin J Prockop
- Institute for Regenerative Medicine, College of Medicine, Texas A&M University System Health Science Center, Temple, TX 76502;
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114
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Preconditioning of Human Mesenchymal Stem Cells to Enhance Their Regulation of the Immune Response. Stem Cells Int 2016; 2016:3924858. [PMID: 27822228 PMCID: PMC5086389 DOI: 10.1155/2016/3924858] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/28/2016] [Indexed: 12/13/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have attracted the attention of researchers and clinicians for their ability to differentiate into a number of cell types, participate in tissue regeneration, and repair the damaged tissues by producing various growth factors and cytokines, as well as their unique immunoprivilege in alloreactive hosts. The immunomodulatory functions of exogenous MSCs have been widely investigated in immune-mediated inflammatory diseases and transplantation research. However, a harsh environment at the site of tissue injury/inflammation with insufficient oxygen supply, abundance of reactive oxygen species, and presence of other harmful molecules that damage the adoptively transferred cells collectively lead to low survival and engraftment of the transferred cells. Preconditioning of MSCs ex vivo by hypoxia, inflammatory stimulus, or other factors/conditions prior to their use in therapy is an adaptive strategy that prepares MSCs to survive in the harsh environment and to enhance their regulatory function of the local immune responses. This review focuses on a number of approaches in preconditioning human MSCs with the goal of augmenting their capacity to regulate both innate and adaptive immune responses.
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115
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Saparov A, Ogay V, Nurgozhin T, Jumabay M, Chen WCW. Preconditioning of Human Mesenchymal Stem Cells to Enhance Their Regulation of the Immune Response. Stem Cells Int 2016; 2016:3924858. [PMID: 27822228 PMCID: PMC5086389 DOI: 10.1155/2016/3924858 10.1155/2016/3924858] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/28/2016] [Indexed: 03/24/2024] Open
Abstract
Mesenchymal stem cells (MSCs) have attracted the attention of researchers and clinicians for their ability to differentiate into a number of cell types, participate in tissue regeneration, and repair the damaged tissues by producing various growth factors and cytokines, as well as their unique immunoprivilege in alloreactive hosts. The immunomodulatory functions of exogenous MSCs have been widely investigated in immune-mediated inflammatory diseases and transplantation research. However, a harsh environment at the site of tissue injury/inflammation with insufficient oxygen supply, abundance of reactive oxygen species, and presence of other harmful molecules that damage the adoptively transferred cells collectively lead to low survival and engraftment of the transferred cells. Preconditioning of MSCs ex vivo by hypoxia, inflammatory stimulus, or other factors/conditions prior to their use in therapy is an adaptive strategy that prepares MSCs to survive in the harsh environment and to enhance their regulatory function of the local immune responses. This review focuses on a number of approaches in preconditioning human MSCs with the goal of augmenting their capacity to regulate both innate and adaptive immune responses.
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Affiliation(s)
- Arman Saparov
- Department of Biomedical Sciences, Nazarbayev University School of Medicine, Astana 010000, Kazakhstan
| | - Vyacheslav Ogay
- Stem Cell Laboratory, National Center for Biotechnology, Astana 010000, Kazakhstan
| | - Talgat Nurgozhin
- Center for Life Sciences, Nazarbayev University, Astana 010000, Kazakhstan
| | - Medet Jumabay
- Division of Cardiology, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
| | - William C. W. Chen
- Research Laboratory of Electronics and Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, USA
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116
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Cai Z, Zhao B, Deng Y, Shangguan S, Zhou F, Zhou W, Li X, Li Y, Chen G. Notch signaling in cerebrovascular diseases (Review). Mol Med Rep 2016; 14:2883-98. [PMID: 27574001 PMCID: PMC5042775 DOI: 10.3892/mmr.2016.5641] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Accepted: 07/22/2016] [Indexed: 12/30/2022] Open
Abstract
The Notch signaling pathway is a crucial regulator of numerous fundamental cellular processes. Increasing evidence suggests that Notch signaling is involved in inflammation and oxidative stress, and thus in the progress of cerebrovascular diseases. In addition, Notch signaling in cerebrovascular diseases is associated with apoptosis, angiogenesis and the function of blood-brain barrier. Despite the contradictory results obtained to date as to whether Notch signaling is harmful or beneficial, the regulation of Notch signaling may provide a novel strategy for the treatment of cerebrovascular diseases.
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Affiliation(s)
- Zhiyou Cai
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Bin Zhao
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yanqing Deng
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Shouqin Shangguan
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Faming Zhou
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Wenqing Zhou
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Xiaoli Li
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
| | - Yanfeng Li
- Department of Neurology, Peking Union Medical College Hospital, Beijing 100730, P.R. China
| | - Guanghui Chen
- Department of Neurology, Renmin Hospital, Hubei University of Medicine, Shiyan, Hubei 442000, P.R. China
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117
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Molendijk I, Barnhoorn MC, de Jonge-Muller ESM, Mieremet-Ooms MAC, van der Reijden JJ, van der Helm D, Hommes DW, van der Meulen-de Jong AE, Verspaget HW. Intraluminal Injection of Mesenchymal Stromal Cells in Spheroids Attenuates Experimental Colitis. J Crohns Colitis 2016; 10:953-64. [PMID: 26896084 DOI: 10.1093/ecco-jcc/jjw047] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Accepted: 02/11/2016] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS In recent years, mesenchymal stromal cells [MSCs] emerged as a promising therapeutic option for various diseases, due to their immunomodulatory properties. We previously observed that intraperitoneally injected MSCs in experimental colitis form spherical shaped aggregates. Therefore, we aggregated MSCs in vitro into spheroids and injected them intraluminally in mice with established colitis, to investigate whether these MSC spheroids could alleviate the colitis. METHODS We injected 0.5 x 10(6) MSCs in spheroids, 2.0 x 10(6) MSCs in spheroids, or phosphate-buffered saline [PBS] as a treatment control, via an enema in mice with established dextran sulphate sodium [DSS]-induced colitis. Body weight was measured daily and disease activity score was determined at sacrifice. Endoscopy was performed to evaluate mucosal healing. After sacrifice, both systemic and local inflammatory responses were evaluated. RESULTS Intraluminally injected MSC spheroids alleviated DSS-induced colitis, resulting in significantly less body weight loss and lower disease activity score at sacrifice when a high dose of MSC spheroids was administered. However, the percentage of mucosal lesions in the distal colon and endoscopy scores were not significantly lower after treatment with 2.0 x 10(6) MSCs in spheroids compared with PBS-treated mice. Systemic inflammation marker serum amyloid A [SAA] was significantly reduced after treatment with 2.0 x 10(6) MSCs in spheroids. In addition, local cytokine levels of IFN-ɣ, TNF-α, IL-6, and IL-17a, as well as numbers of macrophages and neutrophils, showed a clear decrease-though not always significant-after intraluminal injection of the MSC spheroids. CONCLUSION Intraluminally injected MSC spheroids at least partially attenuate experimental colitis, with fewer phagocytes and proinflammmatory cytokines, when a high dose of MSCs in spheroids was administered.
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Affiliation(s)
- Ilse Molendijk
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marieke C Barnhoorn
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Marij A C Mieremet-Ooms
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Johan J van der Reijden
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Danny van der Helm
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
| | - Daniel W Hommes
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands Division of Digestive Diseases, University of California Los Angeles, Los Angeles, CA, USA
| | | | - Hein W Verspaget
- Department of Gastroenterology and Hepatology, Leiden University Medical Center, Leiden, The Netherlands
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118
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Zhang Y, Mao H, Gao C, Li S, Shuai Q, Xu J, Xu K, Cao L, Lang R, Gu Z, Akaike T, Yang J. Enhanced Biological Functions of Human Mesenchymal Stem-Cell Aggregates Incorporating E-Cadherin-Modified PLGA Microparticles. Adv Healthc Mater 2016; 5:1949-59. [PMID: 27245478 DOI: 10.1002/adhm.201600114] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Revised: 03/30/2016] [Indexed: 12/15/2022]
Abstract
Mesenchymal stem cells (MSCs) have emerged as a promising source of multipotent cells for various cell-based therapies due to their unique properties, and formation of 3D MSC aggregates has been explored as a potential strategy to enhance therapeutic efficacy. In this study, poly(lactic-co-glycolic acid) (PLGA) microparticles modified with human E-cadherin fusion protein (hE-cad-PLGA microparticles) have been fabricated and integrated with human MSCs to form 3D cell aggregates. The results show that, compared with the plain PLGA, the hE-cad-PLGA microparticles distribute within the aggregates more evenly and further result in a more significant improvement of cellular proliferation and secretion of a series of bioactive factors due to the synergistic effects from the bioactive E-cadherin fragments and the PLGA microparticles. Meanwhile, the hE-cad-PLGA microparticles incorporated in the aggregates upregulate the phosphorylation of epidermal growth factor receptors and activate the AKT and ERK1/2 signaling pathways in the MSCs. Additionally, the E-cadherin/β-catenin cellular membrane complex in the MSCs is markedly stimulated by the hE-cad-PLGA microparticles. Therefore, engineering 3D cell aggregates with hE-cad-PLGA microparticles can be a promising method for ex vivo multipotent stem-cell expansion with enhanced biological functions and may offer a novel route to expand multipotent stem-cell-based clinical applications.
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Affiliation(s)
- Yan Zhang
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Hongli Mao
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
- Nano Medical Engineering Laboratory; RIKEN; 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Chao Gao
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Suhua Li
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Qizhi Shuai
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Jianbin Xu
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Ke Xu
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Lei Cao
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
| | - Ren Lang
- Department of Hepatobiliary Surgery; Beijing Chaoyang Hospital; Capital Medical University; Beijing 100020 China
| | - Zhongwei Gu
- National Engineering Research Center for Biomaterials; Sichuan University; Chengdu 610064 China
| | - Toshihiro Akaike
- Biomaterials Center for Regenerative Medical Engineering; Foundation for Advancement of International Science; 24-16, kasuga, 3-chome Tsukuba 305-0821 Japan
| | - Jun Yang
- The Key Laboratory of Bioactive Materials; Ministry of Education; College of Life Science; Nankai University; Tianjin 300071 China
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119
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Ranganath SH, Tong Z, Levy O, Martyn K, Karp JM, Inamdar MS. Controlled Inhibition of the Mesenchymal Stromal Cell Pro-inflammatory Secretome via Microparticle Engineering. Stem Cell Reports 2016; 6:926-939. [PMID: 27264972 PMCID: PMC4911501 DOI: 10.1016/j.stemcr.2016.05.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 05/07/2016] [Accepted: 05/08/2016] [Indexed: 01/13/2023] Open
Abstract
Mesenchymal stromal cells (MSCs) are promising therapeutic candidates given their potent immunomodulatory and anti-inflammatory secretome. However, controlling the MSC secretome post-transplantation is considered a major challenge that hinders their clinical efficacy. To address this, we used a microparticle-based engineering approach to non-genetically modulate pro-inflammatory pathways in human MSCs (hMSCs) under simulated inflammatory conditions. Here we show that microparticles loaded with TPCA-1, a small-molecule NF-κB inhibitor, when delivered to hMSCs can attenuate secretion of pro-inflammatory factors for at least 6 days in vitro. Conditioned medium (CM) derived from TPCA-1-loaded hMSCs also showed reduced ability to attract human monocytes and prevented differentiation of human cardiac fibroblasts to myofibroblasts, compared with CM from untreated or TPCA-1-preconditioned hMSCs. Thus, we provide a broadly applicable bioengineering solution to facilitate intracellular sustained release of agents that modulate signaling. We propose that this approach could be harnessed to improve control over MSC secretome post-transplantation, especially to prevent adverse remodeling post-myocardial infarction. Soluble TPCA-1 attenuates pro-inflammatory secretome in TNF-α-stimulated hMSCs TPCA preconditioning fails to inhibit pro-inflammatory secretome in TNF-hMSCs TPCA-μP-hMSCs demonstrate sustained inhibition of pro-inflammatory secretome Engineered hMSCs inhibit α-SMA expression and collagen deposition in cardiac fibroblasts
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Affiliation(s)
- Sudhir H Ranganath
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Center for Advanced Scientific Research, Jakkur, Bangalore 560064, India; Division of Biomedical Engineering, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Institute for Stem Cell Biology and Regenerative Medicine, GKVK - Post, Bellary Road, Bangalore 560065, India; Harvard-MIT Division of Health Sciences and Technology, 65 Landsdowne Street, Cambridge, MA 02139, USA; Department of Chemical Engineering, Siddaganga Institute of Technology, B.H. Road, Tumkur 572103, India
| | - Zhixiang Tong
- Division of Biomedical Engineering, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, 65 Landsdowne Street, Cambridge, MA 02139, USA; Harvard Stem Cell Institute, 1350 Massachusetts Avenue, Cambridge, MA 02138, USA
| | - Oren Levy
- Division of Biomedical Engineering, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, 65 Landsdowne Street, Cambridge, MA 02139, USA; Harvard Stem Cell Institute, 1350 Massachusetts Avenue, Cambridge, MA 02138, USA
| | - Keir Martyn
- Division of Biomedical Engineering, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, 65 Landsdowne Street, Cambridge, MA 02139, USA; Harvard Stem Cell Institute, 1350 Massachusetts Avenue, Cambridge, MA 02138, USA
| | - Jeffrey M Karp
- Division of Biomedical Engineering, Department of Medicine, Brigham & Women's Hospital, Harvard Medical School, Cambridge, MA 02139, USA; Harvard-MIT Division of Health Sciences and Technology, 65 Landsdowne Street, Cambridge, MA 02139, USA; Harvard Stem Cell Institute, 1350 Massachusetts Avenue, Cambridge, MA 02138, USA.
| | - Maneesha S Inamdar
- Molecular Biology and Genetics Unit, Jawaharlal Nehru Center for Advanced Scientific Research, Jakkur, Bangalore 560064, India; Institute for Stem Cell Biology and Regenerative Medicine, GKVK - Post, Bellary Road, Bangalore 560065, India.
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120
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Lee BC, Kim HS, Shin TH, Kang I, Lee JY, Kim JJ, Kang HK, Seo Y, Lee S, Yu KR, Choi SW, Kang KS. PGE2 maintains self-renewal of human adult stem cells via EP2-mediated autocrine signaling and its production is regulated by cell-to-cell contact. Sci Rep 2016; 6:26298. [PMID: 27230257 PMCID: PMC4882486 DOI: 10.1038/srep26298] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Accepted: 04/29/2016] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal stem cells (MSCs) possess unique immunomodulatory abilities. Many studies have elucidated the clinical efficacy and underlying mechanisms of MSCs in immune disorders. Although immunoregulatory factors, such as Prostaglandin E2 (PGE2), and their mechanisms of action on immune cells have been revealed, their effects on MSCs and regulation of their production by the culture environment are less clear. Therefore, we investigated the autocrine effect of PGE2 on human adult stem cells from cord blood or adipose tissue, and the regulation of its production by cell-to-cell contact, followed by the determination of its immunomodulatory properties. MSCs were treated with specific inhibitors to suppress PGE2 secretion, and proliferation was assessed. PGE2 exerted an autocrine regulatory function in MSCs by triggering E-Prostanoid (EP) 2 receptor. Inhibiting PGE2 production led to growth arrest, whereas addition of MSC-derived PGE2 restored proliferation. The level of PGE2 production from an equivalent number of MSCs was down-regulated via gap junctional intercellular communication. This cell contact-mediated decrease in PGE2 secretion down-regulated the suppressive effect of MSCs on immune cells. In conclusion, PGE2 produced by MSCs contributes to maintenance of self-renewal capacity through EP2 in an autocrine manner, and PGE2 secretion is down-regulated by cell-to-cell contact, attenuating its immunomodulatory potency.
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Affiliation(s)
- Byung-Chul Lee
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Hyung-Sik Kim
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea.,Pusan National University School of Medicine, Busan 49241, South Korea.,Biomedical Research Institute, Pusan National University Hospital, Busan 49241, South Korea
| | - Tae-Hoon Shin
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Insung Kang
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Jin Young Lee
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Jae-Jun Kim
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Hyun Kyoung Kang
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Yoojin Seo
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Seunghee Lee
- Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Kyung-Rok Yu
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea.,Hematology Branch, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, MD 20892, USA
| | - Soon Won Choi
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea.,Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
| | - Kyung-Sun Kang
- Adult Stem Cell Research Center, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea.,Research Institute for Veterinary Medicine, College of Veterinary Medicine, Seoul National University, Seoul 08826, South Korea
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121
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Kanz D, Konantz M, Alghisi E, North TE, Lengerke C. Endothelial-to-hematopoietic transition: Notch-ing vessels into blood. Ann N Y Acad Sci 2016; 1370:97-108. [DOI: 10.1111/nyas.13030] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2015] [Revised: 01/21/2016] [Accepted: 01/26/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Dirk Kanz
- Department of Stem Cell and Regenerative Biology; Harvard University; Boston Massachusetts
| | - Martina Konantz
- Department of Biomedicine; University Hospital Basel; Basel Switzerland
| | - Elisa Alghisi
- Department of Biomedicine; University Hospital Basel; Basel Switzerland
| | - Trista E. North
- Beth Israel Deaconess Medical Center; Harvard Medical School; Boston Massachusetts
- Harvard Stem Cell Institute; Cambridge Massachusetts
| | - Claudia Lengerke
- Department of Biomedicine; University Hospital Basel; Basel Switzerland
- Division of Hematology; University Hospital Basel; Basel Switzerland
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122
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Cesarz Z, Funnell JL, Guan J, Tamama K. Soft Elasticity-Associated Signaling and Bone Morphogenic Protein 2 Are Key Regulators of Mesenchymal Stem Cell Spheroidal Aggregates. Stem Cells Dev 2016; 25:622-35. [PMID: 26916040 DOI: 10.1089/scd.2015.0356] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Cell therapy with adult mesenchymal stem cells (MSCs) is a promising approach to regenerative medicine and autoimmune diseases. There are various approaches to improve the efficacy of MSC-based therapeutics, and MSC preparation as spheroidal aggregates, or MSC spheroids, is a novel preparatory and delivery method. Spheroid formation induces a dramatic change in the gene expression profile of MSCs. Self-activation of interleukin-1 (IL1) signaling was shown to be upstream of both pro- and anti-inflammatory genes in MSC spheroids, but the molecular pathways that initiate IL1 signaling remain unknown. As bone morphogenic protein (BMP)2 upregulation precedes that of IL1B expression during spheroid formation, we hypothesized that BMP2 signaling triggers IL1 signaling in MSC spheroids. Contrary to expectations, BMP2 signaling decreased expression of IL1B and downstream genes in a SMAD6-dependent manner. Conversely, IL1B signaling enhanced BMP2 expression. Another major difference between two-dimensional (2D) monolayer culture and three-dimensional (3D) spheroid culture is the Young's elasticity modulus, or stiffness, of the materials surrounding the cells, as there is a million-fold difference between a plastic surface for standard 2D culture (GPa) and 3D spheroidal aggregates (0.1 kPa). We tested another hypothesis that soft elasticity-associated mechano-signaling initiates the gene expression change during spheroid formation. Results showed that both BMP2 expression and inflammatory signaling are upregulated in an elasticity-associated signaling-dependent manner in MSCs. Lastly, BMP2 signaling enhanced cell survival and cell spreading of MSC spheroids. In summary, our study suggests that soft elasticity and BMP2 signaling are critical for MSC spheroids.
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Affiliation(s)
- Zoe Cesarz
- 1 Department of Pathology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Jessica L Funnell
- 1 Department of Pathology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania
| | - Jianjun Guan
- 2 Department of Materials Science and Engineering, the Ohio State University , Columbus, Ohio
| | - Kenichi Tamama
- 1 Department of Pathology, University of Pittsburgh School of Medicine , Pittsburgh, Pennsylvania.,3 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
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123
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Enhancement of the immunoregulatory potency of mesenchymal stromal cells by treatment with immunosuppressive drugs. Cytotherapy 2016; 17:1188-99. [PMID: 26276002 DOI: 10.1016/j.jcyt.2015.05.009] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 04/29/2015] [Accepted: 05/26/2015] [Indexed: 12/15/2022]
Abstract
BACKGROUND AIMS Multipotent mesenchymal stromal cells (MSCs) are distinguished by their ability to differentiate into a number of stromal derivatives of interest for regenerative medicine, but they also have immunoregulatory properties that are being tested in a number of clinical settings. METHODS We show that brief incubations with rapamycin, everolimus, FK506 or cyclosporine A increase the immunosuppressive potency of MSCs and other cell types. RESULTS The treated MSCs are up to 5-fold more potent at inhibiting the induced proliferation of T lymphocytes in vitro. We show that this effect probably is due to adsorption of the drug by the MSCs during pre-treatment, with subsequent diffusion into co-cultures at concentrations sufficient to inhibit T-cell proliferation. MSCs contain measurable amounts of rapamycin after a 15-min exposure, and the potentiating effect is blocked by a neutralizing antibody to the drug. With the use of a pre-clinical model of acute graft-versus-host disease, we demonstrate that a low dose of rapamycin-treated but not untreated umbilical cord-derived MSCs significantly inhibit the onset of disease. CONCLUSIONS The use of treated MSCs may achieve clinical end points not reached with untreated MSCs and allow for infusion of fewer cells to reduce costs and minimize potential side effects.
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Follin B, Juhl M, Cohen S, Pedersen AE, Kastrup J, Ekblond A. Increased Paracrine Immunomodulatory Potential of Mesenchymal Stromal Cells in Three-Dimensional Culture. TISSUE ENGINEERING PART B-REVIEWS 2016; 22:322-9. [PMID: 26861485 PMCID: PMC4964752 DOI: 10.1089/ten.teb.2015.0532] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mesenchymal stromal/stem cells (MSCs) have been investigated extensively through the past years, proving to have great clinical therapeutic potential. In vitro cultivation of MSCs in three-dimensional (3D) culture systems, such as scaffolds, hydrogels, or spheroids, have recently gained attention for tissue engineering applications. Studies on MSC spheroids demonstrated that such cultivation increased the paracrine immunomodulatory potential of the MSCs, accompanied by phenotypic alterations. In this review, we gather results from recent experimental studies on the immunomodulatory abilities of MSCs when cultured as spheroids or in biomaterials like scaffolds or hydrogels compared to regular two-dimensional (2D) culture and show that alterations occurring to MSCs in spheroids also occur in MSCs in biomaterials. We provide a brief description of known mechanisms of MSC immunomodulatory capacity and how they are altered in the two 3D culture systems, together with phenotypic cellular changes. Based on the present knowledge, we highlight vital areas in need of further investigation. The impact of 3D environments on immunomodulation has great potential for tissue engineering and cellular therapy, and this is the first review to gather this knowledge with a comparison across different 3D environments.
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Affiliation(s)
- Bjarke Follin
- 1 Cardiology Stem Cell Center, The Heart Center, Rigshospitalet, Copenhagen University Hospital , Copenhagen, Denmark
| | - Morten Juhl
- 1 Cardiology Stem Cell Center, The Heart Center, Rigshospitalet, Copenhagen University Hospital , Copenhagen, Denmark
| | - Smadar Cohen
- 2 Regenerative Medicine and Stem Cell Research Center, the Avram and Stella Goldstein-Goren Department of Biotechnology and Engineering, Ben-Gurion University of the Negev , Beer Sheva, Israel
| | - Anders Elm Pedersen
- 3 Department of Immunology and Microbiology, University of Copenhagen , Copenhagen, Denmark
| | - Jens Kastrup
- 1 Cardiology Stem Cell Center, The Heart Center, Rigshospitalet, Copenhagen University Hospital , Copenhagen, Denmark
| | - Annette Ekblond
- 1 Cardiology Stem Cell Center, The Heart Center, Rigshospitalet, Copenhagen University Hospital , Copenhagen, Denmark
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Bazhanov N, Ylostalo JH, Bartosh TJ, Tiblow A, Mohammadipoor A, Foskett A, Prockop DJ. Intraperitoneally infused human mesenchymal stem cells form aggregates with mouse immune cells and attach to peritoneal organs. Stem Cell Res Ther 2016; 7:27. [PMID: 26864573 PMCID: PMC4748482 DOI: 10.1186/s13287-016-0284-5] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 04/13/2015] [Accepted: 01/19/2016] [Indexed: 02/07/2023] Open
Abstract
Background Mesenchymal stem/progenitor cells (MSC) have shown beneficial effects in many models of disease in part by modulating excessive inflammatory and immune responses. Frequently the beneficial effects of MSC persist long after their disappearance from host tissues, suggesting that MSC interact with intermediate cells in the host that relay or amplify their effects. The cells have usually been injected intravenously, but beneficial effects have also been reported with intraperitoneal (IP) injection of MSC. However the fate of IP injection of MSC has not been examined. Methods The fate of the human MSC injected IP into immune-competent mice was studied. In vivo imaging was used to track green fluorescent protein-labeled MSC in the peritoneal cavity. In addition, their retention in peritoneal tissues was measured by real-time polymerase chain reaction for human GAPDH mRNA. To describe the effects of human MSC on the immune system of the peritoneum, the peritoneal lavage, omentum, lymph nodes and mesenteric tissues were collected. Flow cytometry was used to evaluate the immune cell populations, while cytokine/chemokine production was measured by real-time polymerase chain reaction and enzyme-linked immunosorbent assay. Challenge with lipopolysaccharide at 3 days after the administration of MSC was used to evaluate the preconditioning of the immune system. Results Within 20 min, single MSC were no longer detected in peritoneal lavage fluid. Instead they were recovered as aggregates of varying size that contained mouse macrophages and a few B220+ lymphocytes. After 1 day, most of the aggregates containing live MSC were attached to sites throughout the peritoneal cavity including the omentum and mesentery. Less than 0.05 % of the live injected cells were detected in the spleen and jejunal lymph nodes. In all locations, MSC colocalized with mouse macrophages and B220+ lymphocytes. Attachment to the omentum and mesentery was accompanied by the recruitment of immune cells and changes in the production of a series of mouse cytokines. A similar increase in mouse cytokines in the peritoneum was seen after IP injections of human fibroblasts. Conclusions IP injected human MSC rapidly formed aggregates with mouse macrophages and B220+ lymphocytes and attached to the walls of the peritoneal cavity. The formation of the aggregates probably limits access of the cells to the systemic circulation. Electronic supplementary material The online version of this article (doi:10.1186/s13287-016-0284-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Nikolay Bazhanov
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
| | - Joni H Ylostalo
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
| | - Thomas J Bartosh
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
| | - April Tiblow
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
| | - Arezoo Mohammadipoor
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
| | - Andrea Foskett
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
| | - Darwin J Prockop
- Institute for Regenerative Medicine, Texas A&M Health Science Center College of Medicine at Scott & White, 5701 Airport Rd., Temple, TX, 76502, USA.
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Xie L, Mao M, Zhou L, Jiang B. Spheroid Mesenchymal Stem Cells and Mesenchymal Stem Cell-Derived Microvesicles: Two Potential Therapeutic Strategies. Stem Cells Dev 2016; 25:203-13. [PMID: 26575103 DOI: 10.1089/scd.2015.0278] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Affiliation(s)
- Lili Xie
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Mao Mao
- Departments of Ophthalmology and Anatomy, Institute for Human Genetics, UCSF School of Medicine, San Francisco, California
| | - Liang Zhou
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
| | - Bing Jiang
- Department of Ophthalmology, The Second Xiangya Hospital, Central South University, Changsha, China
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Fontaine MJ, Shih H, Schäfer R, Pittenger MF. Unraveling the Mesenchymal Stromal Cells' Paracrine Immunomodulatory Effects. Transfus Med Rev 2015; 30:37-43. [PMID: 26689863 DOI: 10.1016/j.tmrv.2015.11.004] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 11/26/2015] [Accepted: 11/26/2015] [Indexed: 02/06/2023]
Abstract
In the last 10 years, the role of mesenchymal stromal cells (MSCs) in modulating inflammatory and immune responses has been characterized using both in vitro studies and in vivo models of immune disorders. Mesenchymal stromal cell immunomodulatory properties have been linked to various paracrine factors which expression varies depending on the pathologic condition to which the MSCs are exposed. These factors may directly impact key cells of the adaptive immune system, such as T cells. Indeed, coculturing MSCs with T cells in a mixed lymphocyte reaction assay inhibits T-cell proliferation through the secretion of immunomodulatory cytokines. However, in a context of inflammation, MSCs may secrete paracrine factors that influence other immune cell subpopulations such as dendritic cells and macrophages and polarize them toward a tolerogenic phenotype. In vivo, these same immunomodulatory factors are shown to be increased in the serum of animal models presenting with inflammatory diseases treated with MSC administration. In light of the results from these landmark studies, we review the main MSC secreted factors identified to play a role in modulating inflammatory immune responses either in vitro or in vivo, and we assess the impact of these factors on the therapeutic applications of MSC-based cell therapies in immune diseases.
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Affiliation(s)
| | - Hank Shih
- Department of Pathology, University of Maryland, Baltimore, MD
| | - Richard Schäfer
- Institute for TransfusionMedicine and Immunohaematology, German Red Cross Blood Donor Service Baden-Württemberg-Hessen gGmbH, Goethe University Hospital, Frankfurt amMain, Germany
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Abstract
Compared with traditional 2D adherent cell culture, 3D spheroidal cell aggregates, or spheroids, are regarded as more physiological, and this technique has been exploited in the field of oncology, stem cell biology, and tissue engineering. Mesenchymal stem cells (MSCs) cultured in spheroids have enhanced anti-inflammatory, angiogenic, and tissue reparative/regenerative effects with improved cell survival after transplantation. Cytoskeletal reorganization and drastic changes in cell morphology in MSC spheroids indicate a major difference in mechanophysical properties compared with 2D culture. Enhanced multidifferentiation potential, upregulated expression of pluripotency marker genes, and delayed replicative senescence indicate enhanced stemness in MSC spheroids. Furthermore, spheroid formation causes drastic changes in the gene expression profile of MSC in microarray analyses. In spite of these significant changes, underlying molecular mechanisms and signaling pathways triggering and sustaining these changes are largely unknown.
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129
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Morrison T, McAuley DF, Krasnodembskaya A. Mesenchymal stromal cells for treatment of the acute respiratory distress syndrome: The beginning of the story. J Intensive Care Soc 2015; 16:320-329. [PMID: 28979439 PMCID: PMC5606462 DOI: 10.1177/1751143715586420] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
In spite of decades of research, the acute respiratory distress syndrome (ARDS) continues to have an unacceptably high mortality and morbidity. Mesenchymal stromal cells (MSCs) present a promising candidate for the treatment of this condition and have demonstrated benefit in preclinical models. MSCs, which are a topic of growing interest in many inflammatory disorders, have already progressed to early phase clinical trials in ARDS. While a number of their mechanisms of effect have been elucidated, a better understanding of the complex actions of these cells may pave the way for MSC modifications, which might enable more effective translation into clinical practice.
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130
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Gray A, Maguire T, Schloss R, Yarmush ML. Identification of IL-1β and LPS as optimal activators of monolayer and alginate-encapsulated mesenchymal stromal cell immunomodulation using design of experiments and statistical methods. Biotechnol Prog 2015; 31:1058-70. [PMID: 25958832 DOI: 10.1002/btpr.2103] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 04/23/2015] [Indexed: 12/13/2022]
Abstract
Induction of therapeutic mesenchymal stromal cell (MSC) function is dependent upon activating factors present in diseased or injured tissue microenvironments. These functions include modulation of macrophage phenotype via secreted molecules including prostaglandin E2 (PGE2). Many approaches aim to optimize MSC-based therapies, including preconditioning using soluble factors and cell immobilization in biomaterials. However, optimization of MSC function is usually inefficient as only a few factors are manipulated in parallel. We utilized fractional factorial design of experiments to screen a panel of 6 molecules (lipopolysaccharide [LPS], polyinosinic-polycytidylic acid [poly(I:C)], interleukin [IL]-6, IL-1β, interferon [IFN]-β, and IFN-γ), individually and in combinations, for the upregulation of MSC PGE2 secretion and attenuation of macrophage secretion of tumor necrosis factor (TNF)-α, a pro-inflammatory molecule, by activated-MSC conditioned medium (CM). We used multivariable linear regression (MLR) and analysis of covariance to determine differences in functions of optimal factors on monolayer MSCs and alginate-encapsulated MSCs (eMSCs). The screen revealed that LPS and IL-1β potently activated monolayer MSCs to enhance PGE2 production and attenuate macrophage TNF-α. Activation by LPS and IL-1β together synergistically increased MSC PGE2, but did not synergistically reduce macrophage TNF-α. MLR and covariate analysis revealed that macrophage TNF-α was strongly dependent on the MSC activation factor, PGE2 level, and macrophage donor but not MSC culture format (monolayer versus encapsulated). The results demonstrate the feasibility and utility of using statistical approaches for higher throughput cell analysis. This approach can be extended to develop activation schemes to maximize MSC and MSC-biomaterial functions prior to transplantation to improve MSC therapies.
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Affiliation(s)
- Andrea Gray
- Dept. of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854
| | - Timothy Maguire
- Dept. of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854
| | - Rene Schloss
- Dept. of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854
| | - Martin L Yarmush
- Dept. of Biomedical Engineering, Rutgers, The State University of New Jersey, Piscataway, NJ, 08854
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Tsai TL, Wang B, Squire MW, Guo LW, Li WJ. Endothelial cells direct human mesenchymal stem cells for osteo- and chondro-lineage differentiation through endothelin-1 and AKT signaling. Stem Cell Res Ther 2015; 6:88. [PMID: 25998005 PMCID: PMC4416238 DOI: 10.1186/s13287-015-0065-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 08/20/2014] [Accepted: 03/25/2015] [Indexed: 02/08/2023] Open
Abstract
Introduction Human mesenchymal stem cells (hMSCs) reside in a perivascular niche of the body, suggesting that they interact closely with vascular endothelial cells (ECs) through cell-cell interaction or paracrine signaling to maintain cell functions. Endothelin-1 (ET1) is a paracrine factor mainly secreted by ECs. We thus hypothesize that ECs can regulate cellular activities of hMSCs and direct their stem cell fate. Methods We investigated whether co-cultured human aortic endothelial cells (HAECs) were able to regulate expression of potency- and lineage-related markers in bone marrow-derived hMSCs. We further explored the regulatory effects of ET1 on cell proliferation, expression of surface antigens and pluripotency-related markers, and multilineage differentiation in hMSCs. Activation of the AKT signaling pathway in hMSCs was also analyzed to identify its mechanistic role in the ET1-induced regulation. Results Co-cultured HAECs enhanced expression of mesenchymal lineage-related markers in hMSCs. Treatment of ET receptor antagonist downregulated the increased expression of CBFA1 in hMSCs cultured with HAEC-conditioned medium. hMSCs treated with ET1 showed cell proliferation and expression of surface antigens, CD73, CD90, and CD105, comparable with those without ET1 treatment. ET1-treated hMSCs also expressed upregulated mRNA transcript levels of OCT3/4, NANOG, CBFA1 and SOX9. When induced for lineage-specific differentiation, hMSCs pre-treated with ET1 showed enhanced osteogenesis and chondrogenesis. However, adipogenic differentiation of hMSCs was not affected by ET1 pretreatment. We further showed that the ET1-induced regulation was mediated by activation of AKT signaling. Conclusion Our results demonstrate that ET1 secreted by HAECs can direct bone marrow-derived hMSCs for osteo- and chondro-lineage differentiation through activation of the AKT signaling pathway, suggesting that ET1 plays a crucial role in regulation of hMSC activity. Our findings may help understand how hMSCs interact with ECs in a perivascular niche. Electronic supplementary material The online version of this article (doi:10.1186/s13287-015-0065-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Tsung-Lin Tsai
- Department of Orthopedics and Rehabilitation, Laboratory of Musculoskeletal Biology and Regenerative Medicine, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5051, Madison, WI, 53705, USA. .,Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5051, Madison, WI 53705, USA.
| | - Bowen Wang
- Department of Surgery, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5151, Madison, WI 53705, USA.
| | - Matthew W Squire
- Department of Orthopedics and Rehabilitation, Laboratory of Musculoskeletal Biology and Regenerative Medicine, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5051, Madison, WI, 53705, USA.
| | - Lian-Wang Guo
- Department of Surgery, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5151, Madison, WI 53705, USA.
| | - Wan-Ju Li
- Department of Orthopedics and Rehabilitation, Laboratory of Musculoskeletal Biology and Regenerative Medicine, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5051, Madison, WI, 53705, USA. .,Department of Biomedical Engineering, University of Wisconsin-Madison, 1111 Highland Ave, WIMR 5051, Madison, WI 53705, USA.
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Kang H, Kim KH, Lim J, Kim YS, Heo J, Choi J, Jeong J, Kim Y, Kim SW, Oh YM, Choo MS, Son J, Kim SJ, Yoo HJ, Oh W, Choi SJ, Lee SW, Shin DM. The Therapeutic Effects of Human Mesenchymal Stem Cells Primed with Sphingosine-1 Phosphate on Pulmonary Artery Hypertension. Stem Cells Dev 2015; 24:1658-71. [PMID: 25761906 DOI: 10.1089/scd.2014.0496] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Stem cell (SC) therapy has become a potential treatment modality for pulmonary artery hypertension (PAH), but the efficacy of human SC and priming effects have not yet been established. The mobilization and homing of hematopoietic stem cells (HSCs) are modulated by priming factors that include a bioactive lipid, sphingosine-1-phosphate (S1P), which stimulates CXCR4 receptor kinase signaling. Here, we show that priming human mesenchymal stem cells (MSCs) with S1P enhances their therapeutic efficacy in PAH. Human MSCs, similar to HSCs, showed stronger chemoattraction to S1P in transwell assays. Concomitantly, MSCs treated with 0.2 μM S1P showed increased phosphorylation of both MAPKp42/44 and AKT protein compared with nonprimed MSCs. Furthermore, S1P-primed MSCs potentiated colony forming unit-fibroblast, anti-inflammatory, and angiogenic activities of MSCs in culture. In a PAH animal model induced by subcutaneously injected monocrotaline, administration of human cord blood-derived MSCs (hCB-MSCs) or S1P-primed cells significantly attenuated the elevated right ventricular systolic pressure. Notably, S1P-primed CB-MSCs, but not unprimed hCB-MSCs, also elicited a significant reduction in the right ventricular weight ratio and pulmonary vascular wall thickness. S1P-primed MSCs enhanced the expression of several genes responsible for stem cell trafficking and angiogenesis, increasing the density of blood vessels in the damaged lungs. Thus, this study demonstrates that human MSCs have potential utility for the treatment of PAH, and that S1P priming increases the effects of SC therapy by enhancing cardiac and vascular remodeling. By optimizing this protocol in future studies, SC therapy might form a basis for clinical trials to treat human PAH.
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Affiliation(s)
- Hyunsook Kang
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea.,2 Department of Physiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Kang-Hyun Kim
- 3 Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Jisun Lim
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea.,2 Department of Physiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - You-Sun Kim
- 3 Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Jinbeom Heo
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea.,2 Department of Physiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Jongjin Choi
- 3 Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Jaeho Jeong
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea.,2 Department of Physiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - YongHwan Kim
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea.,2 Department of Physiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Seong Who Kim
- 4 Department of Biochemistry and Molecular Biology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Yeon-Mok Oh
- 3 Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Myung-Soo Choo
- 5 Department of Urology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Jaekyoung Son
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Su Jung Kim
- 6 Department of Biomedical Research Center, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Hyun Ju Yoo
- 6 Department of Biomedical Research Center, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Wonil Oh
- 7 Biomedical Research Institute , Medipost Co., Ltd., Seoul, Korea
| | - Soo Jin Choi
- 7 Biomedical Research Institute , Medipost Co., Ltd., Seoul, Korea
| | - Sei Won Lee
- 3 Department of Pulmonary and Critical Care Medicine, and Clinical Research Center for Chronic Obstructive Airway Diseases, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
| | - Dong-Myung Shin
- 1 Department of Biomedical Sciences, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea.,2 Department of Physiology, Asan Medical Center, University of Ulsan College of Medicine , Seoul, Korea
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Stoddart MJ, Bara J, Alini M. Cells and secretome--towards endogenous cell re-activation for cartilage repair. Adv Drug Deliv Rev 2015; 84:135-45. [PMID: 25174306 DOI: 10.1016/j.addr.2014.08.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 06/26/2014] [Accepted: 08/20/2014] [Indexed: 01/01/2023]
Abstract
Regenerative medicine approaches to cartilage tissue repair have mainly been concerned with the implantation of a scaffold material containing monolayer expanded cells into the defect, with the aim to differentiate the cells into chondrocytes. While this may be a valid approach, the secretome of the implanted cells and its effects on the endogenous resident cells, is gaining in interest. This review aims to summarize the knowledge on the secretome of mesenchymal stem cells, including knowledge from other tissues, in order to indicate how these mechanisms may be of value in repairing articular cartilage defects. Potential therapies and their effects on the repair of articular cartilage defects will be discussed, with a focus on the transition from classical cell therapy to the implantation of cell free matrices releasing specific cytokines.
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134
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Tsai AC, Liu Y, Yuan X, Ma T. Compaction, fusion, and functional activation of three-dimensional human mesenchymal stem cell aggregate. Tissue Eng Part A 2015; 21:1705-19. [PMID: 25661745 DOI: 10.1089/ten.tea.2014.0314] [Citation(s) in RCA: 131] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Human mesenchymal stem cells (hMSCs) are primary candidates in cell therapy and tissue engineering and are being tested in clinical trials for a wide range of diseases. Originally isolated and expanded as plastic adherent cells, hMSCs have intriguing properties of in vitro self-assembly into three-dimensional (3D) aggregates that improve a range of biological properties, including multilineage potential, secretion of therapeutic factors, and resistance against ischemic condition. While cell-cell contacts and cell-extracellular matrix interactions mediate 3D cell aggregation, the adaptive changes of hMSC cytoskeleton during self-assembly and associated metabolic reconfiguration may also influence aggregate properties and functional activation. In this study, we investigated the role of actin in regulating 3D hMSC aggregate compaction, fusion, spreading and functional activation. Individual hMSC aggregates with controlled initial cell number were formed by seeding a known number of hMSCs (500, 2000, and 5000 cells/well) in multi-well plates of an ultra-low adherent surface to form multicellular aggregates in individual wells. To assess the influence of actin-mediated contractility on hMSC aggregation and properties, actin modulators, including cytochalasin D (cytoD), nocodazole, lysophosphatidic acid (LPA), and Y-27632, were added at different stages of aggregation and their impacts on hMSC aggregate compaction and apoptosis were monitored. The results suggest that actin-mediated contractility influences hMSC aggregation, compaction, fusion, and spreading on adherent surface. Formation of multi-cellular aggregates significantly upregulated caspase 3/7 expression, expression of C-X-C chemokine receptor type 4 (CXCR-4), cell migration, secretion of prostaglandin E2 (PGE-2) and interleukin 6 (IL-6), and resistance to in vitro ischemic stress. The functional enhancement, however, is dependent on caspase activation, because treatment with Q-VD-OPh, a pan-caspase inhibitor, attenuated CXCR-4 and cytokine secretion. Importantly, comparable ATP/cell levels and significantly reduced mitochondrial membrane potential in aggregates of different sizes suggest that altered mitochondria bioenergetics on 3D aggregation is the primary inducer for apoptosis. Together, the results suggest multicellular aggregation as an effective and nongenetic strategy for hMSC functional activation.
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Affiliation(s)
- Ang-Chen Tsai
- Department of Chemical and Biomedical Engineering, Florida State University , Tallahassee, Florida
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Zumla A, Chakaya J, Centis R, D'Ambrosio L, Mwaba P, Bates M, Kapata N, Nyirenda T, Chanda D, Mfinanga S, Hoelscher M, Maeurer M, Migliori GB. Tuberculosis treatment and management—an update on treatment regimens, trials, new drugs, and adjunct therapies. THE LANCET RESPIRATORY MEDICINE 2015; 3:220-34. [DOI: 10.1016/s2213-2600(15)00063-6] [Citation(s) in RCA: 117] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Revised: 01/09/2015] [Accepted: 01/12/2015] [Indexed: 01/08/2023]
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136
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Hengartner NE, Fiedler J, Schrezenmeier H, Huber-Lang M, Brenner RE. Crucial role of IL1beta and C3a in the in vitro-response of multipotent mesenchymal stromal cells to inflammatory mediators of polytrauma. PLoS One 2015; 10:e0116772. [PMID: 25562599 PMCID: PMC4285554 DOI: 10.1371/journal.pone.0116772] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 12/13/2014] [Indexed: 12/22/2022] Open
Abstract
Multipotent mesenchymal stromal cells (MSC) exert immune-modulatory effects and support tissue regeneration in various local trauma models. In case of a polytrauma, high amounts of danger-associated molecular patterns are released, leading to a systemic increase of inflammatory mediators. The influence of such a complex inflammatory microenvironment on human MSC is mainly unknown so far. Therefore, we investigated the effects of a defined serum-free polytrauma “cocktail” containing ILͳbeta, IL6, IL8 and the anaphylatoxins C3a and C5a, in concentrations corresponding to those measured in the blood of polytrauma patients, on human MSC in vitro. The polytrauma cocktail induced directed migration of MSC with C3a representing its major soluble chemoattractive agent. Furthermore, the polytrauma cocktail and IL1beta upregulated the expression of MMP1 indicating a potential role of IL1beta to enhance MSC migration in the tissue context. COX2, PTGES and TSG6 were also found to be upregulated upon stimulation with the polytrauma cocktail or IL1beta, but not through other single factors of the polytrauma cocktail in pathophysiologically relevant concentrations. An RNA expression array of 84 inflammation-related genes revealed that both the polytrauma cocktail and IL1beta induced C3, CSF1, TLR3 and various chemokines without major qualitative or quantitative differences. These results indicate that IL1beta is a crucial mediator of the polytrauma cocktail in terms of immune-modulation and MMP1 expression. Thus, upon encountering the primary sterile, inflammatory milieu of a polytrauma, endogenous or systemically transfused MSC might be able to migrate to sites of injury, secrete TSG6 and PGE2 and to influence macrophage biology as observed in local trauma models.
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Affiliation(s)
- Nina-Emily Hengartner
- Orthopedic Department, Division for Biochemistry of Joint and Connective Tissue Diseases, University of Ulm, Ulm, Germany
| | - Jörg Fiedler
- Orthopedic Department, Division for Biochemistry of Joint and Connective Tissue Diseases, University of Ulm, Ulm, Germany
| | - Hubert Schrezenmeier
- Institute of Clinical Transfusion Medicine and Immunogenetics Ulm, German Red Cross Blood Transfusion Service Baden-Württemberg—Hessen and University Hospital Ulm, University of Ulm, Ulm, Germany
| | - Markus Huber-Lang
- Department of Orthopedic Trauma, Hand-, Plastic and Reconstructive Surgery, University of Ulm, Ulm, Germany
| | - Rolf E. Brenner
- Orthopedic Department, Division for Biochemistry of Joint and Connective Tissue Diseases, University of Ulm, Ulm, Germany
- * E-mail:
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137
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Li J, Ma Y, Teng R, Guan Q, Lang J, Fang J, Long H, Tian G, Wu Q. Transcriptional profiling reveals crosstalk between mesenchymal stem cells and endothelial cells promoting prevascularization by reciprocal mechanisms. Stem Cells Dev 2014; 24:610-23. [PMID: 25299975 DOI: 10.1089/scd.2014.0330] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Mesenchymal stem cells (MSCs) show great promise in blood vessel restoration and vascularization enhancement in many therapeutic situations. Typically, the co-implantation of MSCs with vascular endothelial cells (ECs) is effective for the induction of functional vascularization in vivo, indicating its potential applications in regenerative medicine. The effects of MSCs-ECs-induced vascularization can be modeled in vitro, providing simplified models for understanding their underlying communication. In this article, a contact coculture model in vitro and an RNA-seq approach were employed to reveal the active crosstalk between MSCs and ECs within a short time period at both morphological and transcriptional levels. The RNA-seq results suggested that angiogenic genes were significantly induced upon coculture, and this prevascularization commitment might require the NF-κB signaling. NF-κB blocking and interleukin (IL) neutralization experiments demonstrated that MSCs potentially secreted IL factors including IL1β and IL6 to modulate NF-κB signaling and downstream chemokines during coculture. Conversely, RNA-seq results indicated that the MSCs were regulated by the coculture environment to a smooth muscle commitment within this short period, which largely induced myocardin, the myogenic co-transcriptional factor. These findings demonstrate the mutual molecular mechanism of MSCs-ECs-induced prevascularization commitment in a quick response.
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Affiliation(s)
- Junxiang Li
- 1 School of Life Sciences, Tsinghua University , Beijing, China
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138
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Schneider SL, Ross AL, Grichnik JM. Do inflammatory pathways drive melanomagenesis? Exp Dermatol 2014; 24:86-90. [PMID: 25041143 DOI: 10.1111/exd.12502] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/13/2014] [Indexed: 12/12/2022]
Abstract
Inflammatory pathways serve to protect the host and promote tissue healing/repair; however, over-activation or dysregulation can be pathological with unintended consequences including malignant progression. A correlation between inflammation and cancer has been well established, and anti-inflammatory medications have been shown to be chemopreventive in certain malignancies. Data are now becoming available that outline an inflammatory pathway that may have a critical role in melanomagenesis. ATP-regulated membrane channels/receptors P2X7 and PANX1 have been directly implicated in melanoma tumor growth. Among other potential effects, opening of the P2X7/PANX1 channel results in activation of the NALP3 inflammasome, which in turn leads to caspase-1 activation and increased levels of activated IL-1β. Elevated levels of caspase-1 and IL-1β have been correlated with melanoma progression, and inhibitors of the inflammasome, caspase and IL-1β activity have all been shown to inhibit melanoma growth. Among many other potential actions, IL-1β increases cyclooxygenase-2 expression leading to local increases in inflammatory mediators such as prostaglandin E2 (PGE2). Anti-inflammatory medications targeting the end of this pathway have had positive results for certain cancers but overall remain mixed for melanoma. A better understanding of the pathways and appropriate intervention points may help direct future therapies. In this viewpoint, we will review data and attempt to model an inflammatory pathway that may be critical for melanomagenesis and propose future directions for exploration.
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Affiliation(s)
- Samantha L Schneider
- Department of Dermatology and Cutaneous Surgery, Miller School of Medicine, University of Miami, Miami, FL, USA; Albert Einstein College of Medicine, Bronx, NY, USA
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139
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Madrigal M, Rao KS, Riordan NH. A review of therapeutic effects of mesenchymal stem cell secretions and induction of secretory modification by different culture methods. J Transl Med 2014; 12:260. [PMID: 25304688 PMCID: PMC4197270 DOI: 10.1186/s12967-014-0260-8] [Citation(s) in RCA: 400] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 09/10/2014] [Indexed: 02/06/2023] Open
Abstract
The mesenchymal stem cell (MSC) is being broadly studied in clinical trials. Contrary to the early paradigm of cell replacement and differentiation as a therapeutic mechanism of action, evidence is mounting that the secretions of the cells are responsible for their therapeutic effects. These secretions include molecules and extracellular vesicles that have both local and distant effects. This review summarizes the up- and down-regulation of MSC anti-inflammatory, immune modulating, anti-tumor, and regenerative secretions resulting from different stimuli including: a) hypoxia, which increases the production of growth factors and anti-inflammatory molecules; b) pro-inflammatory stimuli that induce the secretion of immune modulating and anti-inflammatory factors; and c) 3 dimensional growth which up regulates the production of anti-cancer factors and anti-inflammatory molecules compared to monolayer culture. Finally we review in detail the most important factors present in conditioned medium of MSC that can be considered protagonists of MSC physiological effects including HGF, TGF-b, VEGF, TSG-6, PGE2 and galectins 1, and 9. We conclude that there is potential for the development of acellular therapeutic interventions for autoimmune, inflammatory, and malignant diseases and tissue regeneration from cellular secretions derived from MSCs cultured under the appropriate conditions.
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Affiliation(s)
- Marialaura Madrigal
- Department of Biotechnology, Acharya Nagarjuna University, Guntur, India. .,INDICASAT-AIP, City of Knowledge, Republic of Panama. .,MediStem Panama Inc., City of Knowledge, Republic of Panama.
| | | | - Neil H Riordan
- MediStem Panama Inc., City of Knowledge, Republic of Panama.
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140
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Ylostalo JH, Bartosh TJ, Tiblow A, Prockop DJ. Unique characteristics of human mesenchymal stromal/progenitor cells pre-activated in 3-dimensional cultures under different conditions. Cytotherapy 2014; 16:1486-1500. [PMID: 25231893 DOI: 10.1016/j.jcyt.2014.07.010] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 07/28/2014] [Accepted: 07/28/2014] [Indexed: 02/06/2023]
Abstract
BACKGROUND AIMS Human mesenchymal stromal cells (MSCs) are being used in clinical trials, but the best protocol to prepare the cells for administration to patients remains unclear. We previously demonstrated that MSCs could be pre-activated to express therapeutic factors by culturing the cells in 3 dimensions (3D). We compared the activation of MSCs in 3D in fetal bovine serum containing medium and in multiple xeno-free media formulations. METHODS MSC aggregation and sphere formation was studied with the use of hanging drop cultures with medium containing fetal bovine serum or with various commercially available stem cell media with or without human serum albumin (HSA). Activation of MSCs was studied with the use of gene expression and protein secretion measurements and with functional studies with the use of macrophages and cancer cells. RESULTS MSCs did not condense into tight spheroids and express a full complement of therapeutic genes in α-minimum essential medium or several commercial stem-cell media. However, we identified a chemically defined xeno-free media, which, when supplemented with HSA from blood or recombinant HSA, resulted in compact spheres with high cell viability, together with high expression of anti-inflammatory (prostaglandin E2, TSG-6 TNF-alpha induced gene/protein 6) and anti-cancer molecules (TRAIL TNF-related apoptosis-inducing ligand, interleukin-24). Furthermore, spheres cultured in this medium showed potent anti-inflammatory effects in a lipopolysaccharide-stimulated macrophage system and suppressed the growth of prostate cancer cells by promoting cell-cycle arrest and cell death. CONCLUSIONS We demonstrated that cell activation in 3D depends critically on the culture medium. The conditions developed in the present study for 3D culture of MSCs should be useful in further research on MSCs and their potential therapeutic applications.
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Affiliation(s)
- Joni H Ylostalo
- Institute for Regenerative Medicine, Texas A&M University Health Science Center College of Medicine at Scott & White, Temple, TX, USA
| | - Thomas J Bartosh
- Institute for Regenerative Medicine, Texas A&M University Health Science Center College of Medicine at Scott & White, Temple, TX, USA
| | - April Tiblow
- Institute for Regenerative Medicine, Texas A&M University Health Science Center College of Medicine at Scott & White, Temple, TX, USA
| | - Darwin J Prockop
- Institute for Regenerative Medicine, Texas A&M University Health Science Center College of Medicine at Scott & White, Temple, TX, USA.
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141
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Abstract
Human mesenchymal stem/progenitor cells (MSCs) isolated from various adult tissues show remarkable therapeutic potential and are being employed in clinical trials for the treatment of numerous diseases (Prockop et al., 2010). While routes of cell administration vary, profound beneficial effects of MSCs in animal models have been observed following intraperitoneal injections of the cells (Roddy et al., 2011). Similar to MSC spheres formed in culture under conditions where attachment to plastic is not permitted (Bartosh et al., 2010), MSCs injected into the peritoneum of mice spontaneously aggregate into 3D sphere-like structures (Bartosh et al., 2013). During the process of sphere assembly and compaction, MSCs upregulate expression of numerous therapeutic anti-inflammatory and immune modulatory factors. Here we describe the method we previously used for the generation of human bone marrow-derived MSC aggregates/spheres in vivo (Bartosh et al., 2013). By tagging the MSCs with green fluorescent protein (GFP), the aggregates formed can be easily visualized, collected and analyzed for changes in cellular properties and interactions with host immune cells.
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Affiliation(s)
- Thomas J Bartosh
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, Temple, USA
| | - Joni H Ylostalo
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, Temple, USA
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142
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Abstract
Macrophages represent a widely distributed and functionally diverse population of innate myeloid cells involved in inflammatory response to pathogens, tissue homeostasis and tissue repair (Murray and Wynn, 2011). Macrophages can be broadly grouped into two subpopulations with opposing activites: M1 or pro-inflammatory macrophages that promote T-helper type 1 (Th1) cell immunity and tissue damage, and M2 or anti-inflammatory/alternatively activated macrophages implicated in Th2 response and resolution of inflammation. Here we describe a rapid assay we used previously to monitor changes in pro-inflammatory and anti-inflammatory cytokine production by lipopolysaccharide (LPS)-activated macrophages in response to therapeutic paracrine factors produced by adult stem cells (Bartosh et al., 2010; Ylostalo et al., 2012; Bartosh et al., 2013). The assay can be adapted appropriately to test macrophage response to other agents as well that will be referred to herein as 'test reagents' or 'test compounds'. In this protocol, the mouse macrophage cell line J774A.1 is expanded as an adherent monolayer on petri dishes allowing for the cells to be harvested easily without enzymes or cell scrapers that can damage the cells. The macropahges are then stimulated in suspension with LPS and seeded into 12-well cell culture plates containing the test reagents. After 16-18 h, the medium conditioned by the macrophages is harvested and the cytokine profile in the medium determined with enzyme-linked immunosorbent assays (ELISA). We routinely measure levels of the pro-inflammtory cytokine TNF-alpha and the anti-inflammatory cytokine interleukin-10 (IL-10).
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Affiliation(s)
- Thomas J. Bartosh
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, Temple, USA
| | - Joni H. Ylostalo
- Institute for Regenerative Medicine, Texas A&M University Health Science Center, Temple, USA
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143
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Lei J, McLane LT, Curtis JE, Temenoff JS. Characterization of a multilayer heparin coating for biomolecule presentation to human mesenchymal stem cell spheroids. Biomater Sci 2014; 2:666-673. [PMID: 25126416 PMCID: PMC4128496 DOI: 10.1039/c3bm60271k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Mesenchymal stem cells therapies have the potential to treat many pathologies, however, controlling cell fate after implantation remains challenging. We have used a multilayer technology to graft a range of 5 μg/mL - 5 mg/mL heparin onto the surface of MSC aggregates. Heparin coating does not affect cell viability (seen through LIVE/DEAD staining), cell anti-inflammatory properties (seen through co-culture with activated monocytes)and facilitates sequestration by coated cells of a growth factor (TGF-β1) that remains bioactive. This system can maximize therapeutic potential of MSC-based treatments because the cell surface-loaded protein could both signal to the cells to influence transplanted cell fate and be released into the surrounding environment to help repair injured tissue.
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Affiliation(s)
- J Lei
- Woodruff School of Mechanical Engineering. Georgia Institute of Technology, Atlanta, Georgia, USA
| | - L T McLane
- School of Physics. Georgia Institute of Technology, Atlanta, Georgia, USA
| | - J E Curtis
- School of Physics. Georgia Institute of Technology, Atlanta, Georgia, USA ; Wallace H. Coulter Department of Biomedical Engineering. Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA
| | - J S Temenoff
- Wallace H. Coulter Department of Biomedical Engineering. Georgia Institute of Technology and Emory University, Atlanta, Georgia, USA ; Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, GA, USA
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144
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Nissimov JN, Das Chaudhuri AB. Hair curvature: a natural dialectic and review. Biol Rev Camb Philos Soc 2014; 89:723-66. [PMID: 24617997 DOI: 10.1111/brv.12081] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2012] [Revised: 12/18/2013] [Accepted: 01/01/2014] [Indexed: 12/19/2022]
Abstract
Although hair forms (straight, curly, wavy, etc.) are present in apparently infinite variations, each fibre can be reduced to a finite sequence of tandem segments of just three types: straight, bent/curly, or twisted. Hair forms can thus be regarded as resulting from genetic pathways that induce, reverse or modulate these basic curvature modes. However, physical interconversions between twists and curls demonstrate that strict one-to-one correspondences between them and their genetic causes do not exist. Current hair-curvature theories do not distinguish between bending and twisting mechanisms. We here introduce a multiple papillary centres (MPC) model which is particularly suitable to explain twisting. The model combines previously known features of hair cross-sectional morphology with partially/completely separated dermal papillae within single follicles, and requires such papillae to induce differential growth rates of hair cortical material in their immediate neighbourhoods. The MPC model can further help to explain other, poorly understood, aspects of hair growth and morphology. Separate bending and twisting mechanisms would be preferentially affected at the major or minor ellipsoidal sides of fibres, respectively, and together they exhaust the possibilities for influencing hair-form phenotypes. As such they suggest dialectic for hair-curvature development. We define a natural-dialectic (ND) which could take advantage of speculative aspects of dialectic, but would verify its input data and results by experimental methods. We use this as a top-down approach to first define routes by which hair bending or twisting may be brought about and then review evidence in support of such routes. In particular we consider the wingless (Wnt) and mammalian target of rapamycin (mTOR) pathways as paradigm pathways for molecular hair bending and twisting mechanisms, respectively. In addition to the Wnt canonical pathway, the Wnt/Ca(2+) and planar cell polarity (PCP) pathways, and others, can explain many alternatives and specific variations of hair bending phenotypes. Mechanisms for hair papilla budding or its division by bisection or fission can explain MPC formation. Epithelial-to-mesenchymal (EMT) and mesenchymal-to-epithelial (MET) transitions, acting in collaboration with epithelial-mesenchymal communications are also considered as mechanisms affecting hair growth and its bending and twisting. These may be treated as sub-mechanisms of an overall development from neural-crest stem cell (NCSC) lineages to differentiated hair follicle (HF) cell types, thus providing a unified framework for hair growth and development.
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145
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Sart S, Tsai AC, Li Y, Ma T. Three-dimensional aggregates of mesenchymal stem cells: cellular mechanisms, biological properties, and applications. TISSUE ENGINEERING PART B-REVIEWS 2013; 20:365-80. [PMID: 24168395 DOI: 10.1089/ten.teb.2013.0537] [Citation(s) in RCA: 285] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Mesenchymal stem cells (MSCs) are primary candidates in cell therapy and tissue engineering and are being tested in clinical trials for a wide range of diseases. Originally isolated and expanded as plastic adherent cells, MSCs have intriguing properties of in vitro self-assembly into three-dimensional (3D) aggregates reminiscent of skeletal condensation in vivo. Recent studies have shown that MSC 3D aggregation improved a range of biological properties, including multilineage potential, secretion of therapeutic factors, and resistance against ischemic condition. Hence, the formation of 3D MSC aggregates has been explored as a novel strategy to improve cell delivery, functional activation, and in vivo retention to enhance therapeutic outcomes. This article summarizes recent reports of MSC aggregate self-assembly, characterization of biological properties, and their applications in preclinical models. The cellular and molecular mechanisms underlying MSC aggregate formation and functional activation are discussed, and the areas that warrant further investigation are highlighted. These analyses are combined to provide perspectives for identifying the controlling mechanisms and refining the methods of aggregate fabrication and expansion for clinical applications.
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Affiliation(s)
- Sébastien Sart
- Department of Chemical and Biomedical Engineering, FAMU-FSU College of Engineering, Florida State University , Tallahassee, Florida
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Zimmermann JA, McDevitt TC. Pre-conditioning mesenchymal stromal cell spheroids for immunomodulatory paracrine factor secretion. Cytotherapy 2013; 16:331-45. [PMID: 24219905 DOI: 10.1016/j.jcyt.2013.09.004] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2013] [Revised: 08/27/2013] [Accepted: 09/19/2013] [Indexed: 12/16/2022]
Abstract
BACKGROUND AIMS Mesenchymal stromal cells (MSCs) exhibit the inherent potential to regulate multiple signaling pathways and cell types that contribute to the pathogenesis of inflammatory and immune diseases. However, more recent studies have suggested that the secretion of immunomodulatory factors by MSCs can be enhanced by three-dimensional aggregation or pro-inflammatory cytokine treatment. METHODS Human MSC spheroids were formed by forced aggregation into agarose micro-wells and subsequently cultured in either minimal essential medium alpha supplemented with fetal bovine serum or serum-free, defined MesenCult-XF medium (STEMCELL Technologies, Vancouver, Canada). A subset of the spheroids were treated with pro-inflammatory cytokines interferon (IFN)-γ or tumor necrosis factor (TNF)-α or both for 4 days. Immunomodulatory factor (prostaglandin E2, indoleamine 2,3-dioxygenase, transforming growth factor-β1 and interleukin-6) secretion was quantified after 4 days of culture, and the immunomodulatory activity of MSCs was assessed by quantifying activated macrophage expression of TNF-α after trans-well co-culture. RESULTS Culturing human MSCs as three-dimensional aggregates increased secretion of immunomodulatory paracrine factors, which was enhanced further by treatment with IFN-γ and TNF-α, demonstrating that these parameters can synergistically enhance endogenous human MSC immunomodulatory properties. However, immunomodulatory factor secretion was found to be highly dependent on the composition of cell culture medium. Human MSCs cultured in MesenCult-XF medium displayed significantly less expression of prostaglandin E2, indoleamine 2,3-dioxygenase, transforming growth factor-β1 and interleukin-6 compared with human MSCs cultured in medium supplemented with fetal bovine serum. Finally, pre-conditioning of human MSC spheroids with IFN-γ and TNF-α resulted in greater immunomodulatory activity in a macrophage co-culture assay. CONCLUSIONS Altogether, engineering the environment of human MSCs to develop pre-conditioning strategies for enhancing human MSC immunomodulation may be a simple approach for improving MSC-based therapies for the treatment of inflammatory and immune diseases.
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Affiliation(s)
- Joshua A Zimmermann
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, Georgia, USA
| | - Todd C McDevitt
- The Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology & Emory University, Atlanta, Georgia, USA; The Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia, USA.
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