scholarly journals New Sources, Differentiation, and Therapeutic Uses of Mesenchymal Stem Cells

2021 ◽  
Vol 22 (10) ◽  
pp. 5288
Author(s):  
Saeyoung Park ◽  
Sung-Chul Jung
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Adipose Tissues ◽  
Therapeutic Uses ◽  
Multipotent Cells

Mesenchymal stem cells (MSCs) are multipotent cells derived from various tissues including bone marrow and adipose tissues [...]

scholarly journals Mechanisms of Interaction of Staphylococcus Aureus With Human Mesenchymal Stem Cells and Their Differentiated Phenotypes

2020 ◽  
Author(s):  
Nibras Khamees ◽  
Darryl J. Hill ◽  
Wael Kafienah
Keyword(s):  
Stem Cells ◽  
Staphylococcus Aureus ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Inflammatory Diseases ◽  
Human Mesenchymal Stem Cells ◽  
Direct Interaction ◽  
Multipotent Cells ◽  
Mechanism Of Interaction ◽  
A Site

AbstractMesenchymal stem cells (MSCs) are multipotent cells commonly derived from the bone marrow, adipose tissue and placenta. Human bone marrow derived MSCs migrate to a site of injury, release proinflammatory cytokines and modulate T-cell proliferation. At sites of injury, MSCs may well encounter bacterial pathogens most commonly the Gram positive pathogen Staphylococcus aureus. However, the precise molecular mechanism(s) of this interaction remain to be elucidated. In the present study we aim to show if a direct interaction occurs between S. aureus and bone marrow derived MSCs and identify if MSCRAMMs have a role in this interaction. We further aim to compare S. aureus interaction with cells that differentiate from MSCs, namely; osteoblasts, adipocytes and chondrocytes, since MSCs co-exist in the niche of these cells. Our results showed that S. aureus is able to interact with MSCs in the form of adhesion and invasion to the cells, and that this interaction is largely dependent on the expression of fibronecting-binding protein (FnBP) by S. aureus. We also showed that the same mechanism of interaction to osteoblasts, adipocytes and chondrocytes that are directly differentiated from the same MSCs. Finally, we have found that the presence of 10% FBS in the infection medium is essential as it helps in achieving the best specific bacterial-cell association with the least background association. The results reveals a mechanism of interaction between S. aureus and MSCs that could pave the way for therapeutic intervention that minimises the burden of infection in inflammatory diseases.

scholarly journals Validation of Osteogenic Properties of Cytochalasin D by High-Resolution RNA-Sequencing in Mesenchymal Stem Cells Derived from Bone Marrow and Adipose Tissues

2018 ◽  
Vol 27 (16) ◽  
pp. 1136-1145 ◽  
Author(s):  
Rebekah M. Samsonraj ◽  
Christopher R. Paradise ◽  
Amel Dudakovic ◽  
Buer Sen ◽  
Asha A. Nair ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
High Resolution ◽  
Rna Sequencing ◽  
Cytochalasin D ◽  
Adipose Tissues

scholarly journals Differentiation ability of rat‐mesenchymal stem cells from bone marrow and adipose tissue to neurons and glial cells

2020 ◽  
Vol 25 (1) ◽  
pp. 43
Author(s):  
Ariyani Noviantari ◽  
Ratih Rinendyaputri ◽  
Ibnu Ariyanto
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Adipose Tissue ◽  
Growth Factor ◽  
Glial Cells ◽  
Cell Markers ◽  
Multipotent Cells ◽  
Before And After

Mesenchymal stem cells (MSCs) are multipotent cells and can differentiate into neurons and glial cells. In vitro differentiation would be done by the addition of various factors. There remains no comparison for the differentiation of MSCs from rat bone marrow (rBMMSCs) and adipose tissue (rATMSCS) into neurons and glial cells with basic fibroblast growth factor (bFGF), epidermal growth factor (EGF), and brain‐derived neurotrophic factor (BDNF). The aims of this study were to investigate the effect of bFGF, EGF, and BDNF supplementation on the differentiation ability of rBMMSCs and rATMSCs into neurons and glial cells. MSCs were cultured with bFGF and EGF for 4 days and then BDNF was added until day 8. Characterization of MSCs before and after induction was carried out by observing the cell morphology and several cell markers. Flowcytometry analysis was performed for MSCs markers (CD90, CD29) and neurons and glial cell markers (A2B5, Beta‐III‐tubulin, PSAN‐CAM); while MAP‐2, a neuron marker, was analyzed by immunocytochemistry. Induction of both types of MSCs showed MAP‐2‐positive cells, decreased MSCs markers, and in rBMMSCs showed increased neuron markers. The number of neuron marker positive cells in rBMMSCS was higher than rATMSCs. This study showed that the addition of bFGF, EGF, and BDNF to the medium induced rBMMSCs into neurons and glial cells, but the conditions were not optimal for rATMSC as judged by the expression of neural markers (A2B5, Beta‐III‐tubulin, PSAN‐CAM, and MAP‐2).

Isolation, Phenotypic, Molecular and First-Time Proteomic Characterization of Human Mesenchymal Stem Cells (MSCs) Derived from Amniotic Fluid: Comparison to Bone Marrow MSCs.

Blood ◽  
2006 ◽  
Vol 108 (11) ◽  
pp. 4260-4260
Author(s):  
Maria G. Roubelakis ◽  
Kalliopi I. Pappa ◽  
Vassiliki Bitsika ◽  
Dimitra Zagoura ◽  
Antonia Vlahou ◽  
...  
Keyword(s):  
Stem Cells ◽  
Bone Marrow ◽  
Mesenchymal Stem Cells ◽  
Amniotic Fluid ◽  
Human Mesenchymal Stem Cells ◽  
Stem Cell Markers ◽  
Differentiation Potential ◽  
Multipotent Cells ◽  
First Time

Abstract Human mesenchymal stem cells (hMSCs) constitute a population of multipotent cells, easily expanded in culture and able to give rise to many lineages. These characteristics make MSCs a very attractive tool for developing new strategies for clinical applications based on cell therapy. So far, the most common source of MSCs has been the bone marrow (BM). However, identification and characterization of alternative sources of MSCs is of great importance. One such alternative source is the amniotic fluid (AF), which can be collected during scheduled amniocentesis without any ethical concerns. To this end, in the present study, we introduced an improved protocol for isolating and clonally expanding fetal MSCs from second trimester amniotic fluid (AF) and we further characterized these cells based on their phenotype, pluripotency, differentiation potential and proteomic profile. The AF samples were obtained during routine amniocentesis and AF-MSCs were enriched by a modified culture protocol. The isolated MSCs expanded rapidly and exhibited differentiation potential into adipocytes and osteoblasts. More importantly, we showed that these cells can differentiate in vitro not only into cell types derived from mesoderm (adipocytes and osteoblasts) and ectoderm (neural cells) but also more interestingly into endoderm (hepatocytes) derived cells. Moreover, we documented that AF-MSCs express Oct-4 transcription factor, a marker of pluripotency, and we studied for the first time its expression over different passages by real time PCR and documented that it remained constant for at least 17 doublings. An extensive characterization of the phenotypic features of AF-MSCs by using a wide range of surface markers and flow cytometry, indicated that they are positive for all the mesenchymal stem cell markers such as CD90, CD105, CD73 and CD166 and generally exhibit a similar expression pattern to the BM-MSCs. To characterize these cells in more detail, we established the first proteomic database for human AF-MSCs. Using 2D-gel electrophoresis and matrix-assisted laser desorption ionisation-time of flight-mass (MALDI-TOF) spectrometry approach, we have generated for the first time the protein map of AF MSCs, by identifying 260 proteins and directly compared this protein profile with that of MSCs derived from BM. We further performed a similar analysis for BM-MSCs, identifying 170 different proteins and generating a reference map for these cells. The comparison of the proteomic pattern from both sources was similar. In general, 140 proteins were identified in AF-MSCs related to cell growth/maintenance, metabolism/energy pathways, protein metabolism, apoptosis, signal transduction and communication as well as transcription and transport, that are not present in BM-MSCs. The approach we initiated, is expected to facilitate systematic functional studies for these multipotent cells. One such approach could be the implementation of the proteomic analysis, during differentiation of AF-MSCs to cells derived from all three germ layers as shown in our study. Data derived from these approaches are expected to clarify the therapeutic potential of the MSCs.

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