Our product, High Quality Brefeldin A with CAS number 20350 - 15 - 6, is a potent chemical compound. Brefeldin A is a lactone antibiotic produced by several species of fungi. It has a molecular formula of C₁₆H₂₄O₄ and a molecular weight of approximately 280.36 g/mol. The product is presented in a highly pure form, ensuring high - quality performance in various applications. The high - quality standard is maintained through strict manufacturing and quality control processes, which guarantee the stability and consistency of the product. It is usually supplied as a white to off - white powder, which is soluble in organic solvents such as DMSO (dimethyl sulfoxide) and ethanol.
Brefeldin A has a wide range of applications in scientific research. In cell biology, it is a well - known inhibitor of protein transport from the endoplasmic reticulum (ER) to the Golgi apparatus. By blocking this process, it can be used to study the intracellular trafficking pathways of proteins, which is crucial for understanding normal cellular functions and various pathological conditions. In immunology research, Brefeldin A can be used to enhance the detection of cytokines. It prevents the secretion of cytokines from cells, leading to their intracellular accumulation. This allows for more accurate and sensitive detection of cytokines using flow cytometry or other immunological techniques. Additionally, in cancer research, Brefeldin A has shown potential anti - tumor effects by interfering with the normal functioning of cancer cells, such as disrupting their protein transport and secretion mechanisms.
When using Brefeldin A, it is recommended to first prepare a stock solution. Dissolve the powder in an appropriate organic solvent, such as DMSO or ethanol, to make a concentrated stock solution. The concentration of the stock solution can be adjusted according to the specific experimental requirements, but a common starting concentration is 10 mg/mL. Then, the stock solution can be further diluted in culture media or other experimental buffers. When adding Brefeldin A to cell cultures, the working concentration typically ranges from 1 - 10 μg/mL, depending on the cell type and the specific experiment. It is important to note that Brefeldin A is a bioactive compound, and proper safety precautions should be taken during handling, such as wearing appropriate personal protective equipment (PPE) like gloves and goggles. Also, the solution should be stored at the recommended temperature, usually at - 20°C, to maintain its stability.
Case 1: Protein Trafficking Study
In a research project focused on understanding the protein trafficking pathways in mammalian cells, Brefeldin A was used. The researchers treated a group of cultured cells with Brefeldin A at a concentration of 5 μg/mL. After a certain incubation period, they observed significant morphological changes in the Golgi apparatus structure. Using fluorescently - labeled proteins, they were able to track the movement of proteins within the cells. The results showed that Brefeldin A effectively blocked the transport of newly synthesized proteins from the ER to the Golgi, confirming its role as a reliable inhibitor in protein trafficking studies.
Case 2: Cytokine Detection in Immunology
In an immunological experiment, researchers aimed to detect the cytokines secreted by activated T - cells. They added Brefeldin A at a concentration of 2 μg/mL to the cell culture after T - cell activation. After a few hours of incubation, they collected the cells and performed intracellular cytokine staining followed by flow cytometry analysis. The results showed a significantly higher detection rate of cytokines compared to the control group without Brefeldin A treatment. This demonstrated the effectiveness of Brefeldin A in enhancing cytokine detection in immunological research.
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