Hsc Quiescence
Hsc Quiescence - Related Videos
06:11
Unfractionated Bulk Culture of Mouse Skeletal Muscle to Recapitulate Niche and Stem Cell Quiescence
0 Views •
Cited by 4 •
2023
Skeletal muscle comprises multiple cell types, including resident stem cells, each with a special contribution to muscle homeostasis and regeneration. Here, the 2D culture of muscle stem cells and the muscle cell niche in an ex vivo setting that preserves many of the physiological, in vivo, and environmental characteristics are described.
02:12
Analyzing Neural Stem Cell Reactivation in Cultured Drosophila Brain Explants
0 Views •
2025
This video demonstrates a protocol to identify exogenous factors that initiate the reactivation of Drosophila brain neural stem cells from their quiescent state. Freshly hatched larvae are dissected to isolate their brains, which are then cultured in media with or without a test hormone to evaluate the hormone's potential to induce neural stem cell reactivation and proliferation.
09:41
Emission Spectroscopic Boundary Layer Investigation during Ablative Material Testing in Plasmatron
0 Views •
Cited by 2 •
2016
Development of new ablative materials and their numerical modeling requires extensive experimental investigation. This protocol describes procedures for material response characterization in plasma flows with the core techniques being non-intrusive methods to track the material recession along with the chemistry in the reactive boundary layer by emission spectroscopy.
08:47
Protocol for Isolation of Primary Human Hepatocytes and Corresponding Major Populations of Non-parenchymal Liver Cells
0 Views •
Cited by 96 •
2016
A technique to isolate human hepatocytes and non-parenchymal liver cells from the same donor is described. The different liver cell types build the basis for functional liver models and tissue engineering. This new method aims to isolate liver cells in a high yield and viability.
09:17
An Alternative Approach for Sample Preparation with Low Cell Number for TEM Analysis
0 Views •
Cited by 9 •
2016
Here, we present a protocol to prepare samples with low cell numbers for transmission electron microscopy (TEM) analysis.
FAQs
Strict cell-cycle control and reduced metabolic activity work together to keep HSCs from unnecessary proliferation while preserving their capacity for future blood production. This restraint limits replication-associated stress, which can accumulate when cells repeatedly divide. By maintaining a low-activity state until demand rises, HSCs retain a reserve that supports long-term hematopoietic function.
The bone marrow niche provides environmental signals that influence whether HSCs remain dormant or become active. Oxygen availability and interactions with surrounding cells contribute to this regulation, linking local conditions to stem-cell behavior. These signals help coordinate transitions between quiescence and proliferation, allowing the blood-forming system to balance preservation with the need for increased production.
Reversible quiescence allows HSCs to reduce activity without permanently losing their ability to respond. Remaining dormant limits replication-associated stress, while reactivation permits a rapid response to injury or increased demand for blood production. This balance is essential because lifelong hematopoiesis requires both protection of the stem-cell reserve and timely generation of new blood cells.
Transitions occur when signals from the bone marrow environment indicate that greater blood-cell production may be needed. Injury or increased demand can shift HSCs away from dormancy, while niche conditions such as oxygen availability and surrounding-cell interactions help regulate that change. The outcome is a controlled increase in activity rather than continuous proliferation.
HSC quiescence is relevant to transplantation because it concerns how blood-forming stem cells preserve their capacity for regeneration and respond to changing demands. Understanding the balance between dormancy and activation can therefore inform studies of hematopoietic recovery after transplantation. The same framework connects stem-cell maintenance in the bone marrow with restoration of blood production.
Research on HSC quiescence helps examine how altered control of dormancy may influence regeneration and disease progression. In aging studies, the focus is the long-term maintenance of blood-forming stem cells and their regenerative capacity. In blood-cancer research, disrupted regulation of quiescence can provide context for understanding abnormal stem-cell behavior and disease development.