Mesenchymal Stem Cell Expansion
Mesenchymal Stem Cell Expansion - Related Videos
12:40
Isolation and Expansion of Mesenchymal Stem/Stromal Cells Derived from Human Placenta Tissue
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Cited by 91 •
2016
Herein we describe methods for the dissection of fetal and maternal tissues from human term placenta, followed by isolation and expansion of mesenchymal stem/stromal cells (MSC) from these tissues.
16:04
Isolation and Animal Serum Free Expansion of Human Umbilical Cord Derived Mesenchymal Stromal Cells (MSCs) and Endothelial Colony Forming Progenitor Cells (ECFCs)
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Cited by 66 •
2009
This protocol describes the isolation and subsequent expansion of mesenchymal stromal cells and endothelial colony forming cells without the use of animal serum to generate autologous pairs for experimental transplantation purposes.
16:55
Isolation & Characterization of Hoechstlow CD45negative Mouse Lung Mesenchymal Stem Cells
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Cited by 13 •
2011
In this article we demonstrate the isolation of murine resident lung mesenchymal stem cells (lung MSC), their expansion, characterization and analysis of immunomodulatory properties.
12:06
Isolation of CD133+ Liver Stem Cells for Clonal Expansion
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Cited by 22 •
2011
Here we describe the isolation of CD133 expressing liver stem cells and cancer stem cells from whole murine liver, a process that requires tissue digestion, cell enrichment, and flow cytometry isolation. We include methods for advanced single cell isolation and clonal expansion.
09:02
Development, Expansion, and In vivo Monitoring of Human NK Cells from Human Embryonic Stem Cells (hESCs) and Induced Pluripotent Stem Cells (iPSCs)
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Cited by 45 •
2013
This protocol describes the development, expansion, and in vivo imaging of NK cells derived from hESCs and iPSCs.
FAQs
Passaging before confluence helps manage the balance between increasing cell numbers and preserving important stem cell characteristics. Confluence provides a practical culture-stage indicator for deciding when cells should be transferred to fresh growth conditions. This timing supports continued proliferation while reducing the risk that extended culture will change self-renewal capacity or multilineage differentiation potential.
The signaling environment determines how expanded cells respond when researchers examine developmental outcomes. Controlled growth conditions can maintain cells for proliferation, whereas lineage-associated environments support investigations of osteogenic, chondrogenic, or adipogenic differentiation. Comparing these environments allows developmental biologists to study how extracellular conditions regulate cell fate without treating expansion and differentiation as identical processes.
Extended culture can alter mesenchymal stem cell phenotype and developmental potential, even when cell numbers continue to increase. Consequently, a larger cell population does not automatically represent an unchanged experimental model. Researchers must interpret results in light of culture duration, particularly when assessing self-renewal, multilineage differentiation, tissue formation, or developmental responses.
Culture-treated surfaces provide the growth setting in which isolated mesenchymal stem cells are maintained, while nutrient media supply the defined conditions used to support proliferation. Together, these components help establish a reproducible environment for expansion and for subsequent studies of cellular characteristics. Their controlled use is especially important when comparing responses to different signaling environments.
A typical workflow begins by isolating mesenchymal stem cells from a tissue and placing them on culture-treated surfaces in nutrient media. Cells remain under defined growth conditions while their numbers increase, then they are periodically passaged before reaching confluence. The expanded population can subsequently support investigations of differentiation, tissue formation, or stem cell behavior.
Researchers use expansion when they need sufficient mesenchymal stem cells to examine how signaling environments regulate developmental outcomes. The approach supports studies of osteogenic, chondrogenic, and adipogenic lineage differentiation, as well as tissue formation and stem cell behavior. It also provides a cellular platform for disease modeling and regenerative medicine research, while requiring attention to culture-related changes.
Expanded populations can provide material for examining lineage-specific differentiation and broader patterns of tissue formation. In developmental biology, these studies help connect culture conditions with changes in cell behavior and developmental potential. The same experimental platform contributes to disease modeling and regenerative medicine, although interpretations should account for the possibility that prolonged expansion modifies the cell phenotype.