Related Experiment Video
Updated: Jul 14, 2026

Phenotypic Analysis and Isolation of Murine Hematopoietic Stem Cells and Lineage-committed Progenitors
Published on: July 8, 2012
Cdc42: a signal coordinator in hematopoietic stem cell maintenance
1Division of Experimental Hematology, Children's Hospital Research Foundation, University of Cincinnati, Cincinnati, Ohio 45229, USA.
Adult hematopoietic stem cells (HSCs) maintain quiescence in the bone marrow niche. Cdc42 protein is crucial for HSC cell cycle regulation and maintaining their niche residency, ensuring long-term self-renewal and differentiation.
Area of Science:
- Stem cell biology
- Hematopoiesis
- Cell cycle regulation
Background:
- Adult hematopoietic stem cells (HSCs) exhibit a quiescent cell cycle state within the bone marrow (BM) microenvironment.
- This quiescence is vital for long-term HSC self-renewal and multi-lineage differentiation throughout life.
- Mechanisms governing HSC cell cycle quiescence and BM niche retention are not fully understood.
Purpose of the Study:
- To investigate the role of Cdc42 in regulating HSC quiescence and bone marrow niche residency.
- To elucidate the cell-type specific functions of Cdc42 in HSCs.
Main Methods:
- Utilized a conditional gene-targeted mouse model.
- Investigated Cdc42 function in hematopoietic stem cells.
Main Results:
- Cdc42 coordinates HSC quiescence maintenance.
- Cdc42 is essential for HSC retention within the bone marrow niche.
- Demonstrated a cell-type specific role for Cdc42 in cell cycle regulation.
Conclusions:
- Cdc42 plays a critical role in maintaining the quiescent state of HSCs.
- Cdc42 is important for HSCs to remain within their specialized bone marrow microenvironment.
- The study highlights Cdc42's specific involvement in controlling the cell cycle of HSCs.
More Related Videos
08:33Combining Mitotic Cell Synchronization and High Resolution Confocal Microscopy to Study the Role of Multifunctional Cell Cycle Proteins During Mitosis
Published on: December 5, 2017
10:21Proliferation and Differentiation of Murine Myeloid Precursor 32D/G-CSF-R Cells
Published on: February 21, 2018
Related Concept Videos
Regulation of Hematopoietic Stem Cells
M-Cdk Drives Transition Into Mitosis
Cyclin-dependent kinases, or Cdks, work in concert with cyclins to control cell cycle transitions. M-Cdk, a complex of Cdk1 bound to M cyclin, is a well-known example of this coordinated control that drives the transition from the G2 to the M phase.
M cyclin...
The Cell Cycle Control System
Cyclins and cyclin-dependent kinases (Cdks) are the primary cell cycle regulators and function at the cell...
The Cell Cycle Control System
The Cell Cycle Control System
Inhibition of Cdk Activity