Flt3 Ligand Expansion
Flt3 Ligand Expansion - Related Videos
04:36
Comet Assay to Quantify DNA Damage in FLT3 Mutant-expressing 32D Cells after Exposure to Type I and Type II FLT3 Inhibitors
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2025
This protocol describes an effective method for quantifying the difference in DNA damage induced by type I and type II inhibitors in FLT3 mutant cells through the application of the comet assay.
02:40
Ligand Binding Sites
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2020
Proteins are dynamic macromolecules that carry out a wide variety of essential processes; however, the activities of most proteins depend on their interactions with other molecules or ions, known as ligands. Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
02:51
Metal-Ligand Bonds
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2020
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes. In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
00:49
Ligand Binding and Linkage
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2020
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...
09:42
Analysis of Thermal Expansion via Dilatometry
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2023
Source: J. Jacob Chavez, Ryan T. Davis, and Taylor D. Sparks, Department of Materials Science and Engineering, The University of Utah, Salt Lake City, UT Thermal expansion is extremely important when considering which materials will be used in systems that experience fluctuations in temperature. A high or low thermal expansion in a material may or may not be desirable, depending on the application. For instance, in a common liquid thermometer, a material with a high thermal expansion would be...
FAQs
Flt3 ligand acts through the Flt3 receptor, a tyrosine kinase on hematopoietic progenitor cells. Receptor engagement activates signaling pathways that support survival and proliferation while also promoting differentiation. These combined effects increase the number of developing immune-cell precursors available for subsequent analysis, rather than merely preserving cells that are already present.
The response depends on cells carrying the Flt3 receptor, because ligand binding initiates the signaling needed for expansion and developmental progression. This receptor relationship helps explain why the approach preferentially affects early hematopoietic progenitors and supports dendritic-cell development. In experimental design, it links the added growth factor to the immune-cell populations expected to increase.
The process can increase both hematopoietic progenitor populations and dendritic-cell populations, reflecting effects on early development as well as later immune-cell differentiation. The resulting enrichment changes the cellular composition of an experimental system. Researchers can therefore examine immune responses with more abundant dendritic cells while also considering how expanded precursors contribute to that population.
The central workflow is to supply Flt3 ligand to an experimental immune-cell system and allow receptor-dependent signaling to act on responsive progenitors. The expected outcome is increased survival, proliferation, and differentiation, followed by enrichment of the targeted cell populations for study. This controlled manipulation provides a way to compare immune responses under different levels of cellular abundance.
This approach is useful when experiments require enriched dendritic-cell populations to investigate antigen presentation, host-pathogen interactions, or immune activation. Increasing the relevant cells can make their functions easier to examine within a controlled model. It is especially valuable when the research question concerns how dendritic-cell abundance influences the behavior or outcome of an immune response.
In vaccination and innate-immunity studies, expanding dendritic-cell populations provides a controlled way to examine how cell abundance affects protective responses. Because dendritic cells are enriched before immune measurements are interpreted, researchers can investigate their contribution to immune activation and host defense. The same strategy supports analysis of host-pathogen interactions by increasing access to the relevant antigen-presenting population.