Luciferase reporter cell line REH is a valuable tool in molecular biology research, engineered to express a luciferase reporter gene under the control of specific regulatory elements. The luciferase gene serves as a reporter of gene expression activity, allowing researchers to study the transcriptional regulation of target genes. The REH cell line, which was obtained from the tissues of ALL patients, has a lymphoid cell shape and is a precursor form of B-cell that is different from B or T cells. Expression of CD3A (17%), CD3B (17%), CD3C (20%), CD4 (15%), and CD10 (55%), as determined by characterization of REH cells, is seen. REH cells are useful for immune system disorders research and 3D cell cultivation.
Features of growth:
1. Clusters with a circular shape are formed as cells develop in suspension.
2. Trypan blue staining for cell counting can be used to verify the viability of round, transparent cells that have intact cell membranes.
3. Cells can be grown with 20% FBS, but their development is noticeably slow, necessitating careful density control to avoid cell death. A 1:2 passaging ratio is advised.
Translocations that create rearranged versions of the transcription factor double homeobox 4 (DUX4-r) are among the most common causes of B cell acute lymphoblastic leukemia (B-ALL). The researchers investigated the role of DUX4-r translocations in B-ALL using the Luciferase Reporter Cell Line - REH to elucidate the molecular mechanisms. They discovered that DUX4-r loses the ability to bind and activate repressed chromatin due to impaired interaction with CBP/EP300. Concurrently, DUX4-r gains an interaction with GTF2I, redirecting its activity toward leukemogenic targets. This neomorphic activity makes DUX4-r–positive leukemia cells highly sensitive to GTF2I targeting, suggesting a potential therapeutic approach for this B-ALL subtype.
Figure 1. The researchers used the Luciferase Reporter Cell Line - REH to demonstrate that pharmacological targeting of GTF2I inhibits DUX4-r leukemogenic activity. (Campolungo D, et al., 2023)
1. Gene transcription regulation research: REH cell lines provide a powerful tool for gene transcription regulation research by expressing Luciferase reporter genes under the control of specific regulatory elements. The luminescent properties of the Luciferase gene enable researchers to monitor the transcriptional activity of target genes in real time through simple and sensitive bioluminescence assays. Researchers can use these cell lines to explore the effects of various regulatory factors (such as transcription factors, signaling molecules, and drugs) on gene expression, thereby revealing the complex mechanisms of gene regulatory networks. In addition, through high-throughput screening, researchers can identify and verify potential regulatory elements and drug targets.
2. Immune system disease research: REH cells are derived from tissues of patients with acute lymphoblastic leukemia (ALL) and exhibit the characteristics of precursor B cells. They express a variety of key immune-related markers (such as CD3A, CD3B, CD3C, CD4, and CD10), making them an important tool for studying immune system diseases. Through these cell lines, researchers can deeply explore the pathogenesis of leukemia, disorders of the immune system, and related signal transduction pathways. In addition, REH cells can also be used to test the effectiveness and safety of new immunotherapy drugs, providing data support for the treatment of leukemia and other immune diseases.
3. Three-dimensional cell culture: REH cells are very suitable for three-dimensional cell culture models, which can better simulate the in vivo cell environment. Three-dimensional culture not only helps to study cell behavior and interactions, but also provides more realistic drug response data. Three-dimensional culture technology enables researchers to conduct experiments in an environment that is closer to the physiological conditions in vivo, thereby obtaining more physiologically relevant results.
Customer Q&As
Luciferase Reporter Cell Line - How is the luciferase reporter gene of the REH cell line inserted and expressed?
A: In REH cell lines, luciferase reporter genes are usually inserted into the cell genome through methods such as viral vectors or electrotransfection, and are expressed under the drive of a specific promoter. These promoters can be strong promoters (such as the CMV promoter) to ensure high-level expression, or promoters responsive to specific signaling pathways to study the activation of specific signaling pathways. The selection of insertion sites and integration strategies are carefully designed to ensure stable expression of the reporter gene.
What are the advantages of REH cell lines in drug screening?
A: The REH cell line, as a human acute lymphoblastic leukemia (ALL) cell line, has significant advantages in drug screening. The use of luciferase reporter genes allows rapid assessment of the effects of drugs on specific signaling pathways, such as the PI3K/AKT or MAPK pathways. In addition, luciferase reporter genes can provide quantitative data that help screen drug molecules with potential therapeutic effects. The high sensitivity and dynamic range of luciferase make it an ideal tool for high-throughput screening.
How stable is the luciferase signal for this cell line?
A: The luciferase signal in the REH cell line is highly stable under normal culture conditions. This is due to the stable integration of the reporter gene and optimized promoter selection, ensuring consistent expression of the reporter gene under different experimental conditions. In experiments, fluctuations in luciferase activity mainly come from experimental treatments (such as drug addition) rather than variations in the cells themselves, so reliable experimental data can be provided.
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Customer Reviews
Fast logistics
I recently used Luciferase Reporter Cell Line - REH in my experiments and had a great experience. First of all, the logistics was very fast, and the cells arrived well packaged and in excellent condition. The cells formed circular suspended aggregates during the culture process. Trypan blue staining was used to confirm cell viability. The cell membrane was intact and the survival rate of transparent round cells was very high.
High cell viability
The REH cell line is particularly suitable for studying immune system-related diseases, and the experimental results of transcriptional regulation of gene expression are very reliable. This cell line has really helped me a lot with my research.
Great research value
Luciferase Reporter Cell Line - REH has recently been used in the laboratory with satisfactory results. Although growth is slower in 20% FBS medium, an appropriate passage ratio (1:2) can maintain good growth status. This cell line is extremely valuable in studying immune system disorders and in 3D cell culture.
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