Related Experiment Video
Updated: Jul 27, 2025
08:31
Identification and Isolation of Burst-Forming Unit and Colony-Forming Unit Erythroid Progenitors from Mouse Tissue by Flow Cytometry
Published on: November 4, 2022
3.1K
Unique Pattern of Gene Expression in the Erythroid Precursor Cells: (gene expression/erythroid/CFU-E/fetal liver)
Yuji Mishina1, Takashi Kato2, Akio Urabe2
1Faculty of Pharmaceutical Sciences, University of Tokyo, Hongo, Bunkyo-ku, Tokyo.
Development, Growth & Differentiation
|June 7, 2023
Summary
Researchers studied erythroid cell differentiation in mouse fetuses. Key rt-genes showed expression changes, peaking at polychromatic erythroblasts, suggesting erythropoietin
Area of Science:
- Hematology
- Molecular Biology
- Developmental Biology
Background:
- Erythroid differentiation is a complex process involving sequential changes in gene expression.
- Reticulocyte-expressed (rt) genes are crucial for terminal erythroid maturation.
- Understanding gene regulation during erythropoiesis is vital for diagnosing and treating blood disorders.
Purpose of the Study:
- To investigate the expression patterns of specific rt-genes during erythroid differentiation.
- To determine the role of erythropoietin in regulating rt-gene expression.
Main Methods:
- Fractionation of erythroid cells from fetal mouse livers using Percoll density gradients.
- Enrichment of colony-forming unit erythroid (CFU-E) cells.
- Quantitative analysis of rt-gene mRNA levels at different differentiation stages.
Main Results:
- rt-gene expression was undetectable in CFU-E cells.
- rt-gene expression peaked at the polychromatic erythroblast stage (Stage I).
- Expression levels decreased as erythroid cells matured.
Conclusions:
- The expression of these rt-genes is tightly regulated during erythroid differentiation.
- Erythropoietin stimulation likely induces the mRNA synthesis of these rt-genes.
- These findings provide insights into the molecular mechanisms of erythropoiesis.
Related Concept Videos
01:14Erythropoiesis
4.4K
Red blood cells (RBCs) transport oxygen to all body tissues. These cells survive only for 120 days and then need to be replenished. Erythropoiesis is the process of RBC production. In healthy individuals, erythropoiesis ensures all tissues are amply supplied with oxygen. In addition, blood loss due to injury leads to a drop in the physiological oxygen level that will cause erythropoiesis. Any defect in erythropoiesis leads to several physiological disorders, including thalassemia, anemia,...
4.4K
01:58Cell Specific Gene Expression
13.6K
Multicellular organisms contain a variety of structurally and functionally distinct cell types, but the DNA in all the cells originated from the same parent cells. The differences in the cells can be attributed to the differential gene expression. Liver cells, whose functions include detoxification of blood, production of bile to metabolize fats, and synthesis of proteins essential for metabolism, must express a specific set of genes to perform their functions. Gene expression also varies with...
13.6K
01:15Differentiation of Common Myeloid Progenitor Cells
3.2K
Common myeloid progenitors (CMPs) are oligopotent cells that can differentiate into granulocytes and macrophages. Granulocytes and macrophages are essential for protecting the body against bacterial, viral, or fungal infections. They migrate from the bone marrow into the circulating blood to reach specific tissue sites where they differentiate and help in immune surveillance. However, they survive only for a few days and must be continuously made available to the organism to maintain a robust...
3.2K
01:21Lineage Commitment
3.0K
Commitment is the process whereby stem cells:
3.0K
01:21Hematopoiesis
5.4K
The process of blood cell formation is called hematopoiesis. Hematopoiesis starts early during development, on the seventh day of embryogenesis. This phase of hematopoiesis is called the primitive wave, wherein the extraembryonic yolk sac allows the production of erythroid cells and endothelial cells from a common precursor called hemangioblast. The erythroid cells provide oxygen to support the growth of the rapidly dividing embryo. Hemangioblasts later develop into hematopoietic stem cells or...
5.4K
01:19Multipotency of Hematopoietic Stem Cells
3.2K
The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
3.2K