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Usage

Uses

Used in Bioconjugation:
Propargyl-PEG3-Acid is used as a crosslinker for bioconjugation, allowing the formation of stable amide bonds with primary amines. This application is particularly useful for the creation of antibody-drug conjugates or other biomolecule conjugates, which can be employed in targeted therapies.
Used in Chemical Biology and Medicinal Chemistry:
In the field of chemical biology and medicinal chemistry, propargyl-PEG3-Acid is used as a building block for the synthesis of small molecules, conjugates of small molecules, and biomolecules. Its ability to form triazole linkages with azide-containing molecules via click chemistry makes it a valuable tool for creating complex molecular structures.
Used in Targeted Protein Degradation:
Propargyl-PEG3-Acid is used as a component in the development of proteolysis-targeting chimeras (PROTAC) molecules for targeted protein degradation. This application takes advantage of the reagent's ability to form stable bonds and its compatibility with click chemistry, enabling the creation of molecules that can selectively degrade specific proteins within cells.
Used in Drug Delivery Systems:
In the pharmaceutical industry, propargyl-PEG3-Acid can be utilized in the design and development of drug delivery systems. Its hydrophilic PEG linker can improve the solubility and bioavailability of drugs, potentially enhancing their therapeutic effects and reducing side effects.
Overall, propargyl-PEG3-Acid is a versatile reagent with a wide range of applications in bioconjugation, chemical biology, medicinal chemistry, targeted protein degradation, and drug delivery systems, thanks to its unique structure and functional groups.

Relevant academic research and scientific papers

Synthesis and functionalization of dendritic polyglycerol-based nanogels: application in T cell activation

The concept of multivalency finds various applications in the fields of chemistry and biology, relying on the principle that multiple weak interactions can lead to strong adhesive forces. Polymeric carriers are promising tools to translate these properties into the field of biomedicine, especially upon functionalization by active biomolecules, such as antibodies. In this study we report on the synthesis of dendritic polyglycerol (dPG) and dPG-based nanogels (NGs) as platforms for the multivalent display of molecules and their potential application as carrier units. Macromolecules based on dPG were synthesized and NGs were generated by strain-promoted azide-alkyne cycloaddition (SPAAC) by inverse nanoprecipitation under mild conditions. Scale-up screening rendered a reproducible method for a batch size of up to 50 mg for the formation of NGs in a size range of 150 nm with narrow dispersity. Dye-labelled bovine serum albumin (FITC-BSA) was chosen as a model protein and showed successful conjugation to the carriers, while the protein's secondary structure was not affected. Consequently, cyanine-5-amine (Cy5-NH2) and avidin (Av) were conjugated in order to exploit the strong avidin-biotin interaction, facilitating the directed attachment of a myriad of biotinylated (bio)molecules. As a proof-of-concept, the biotinylated monoclonal antibodies (mAbs) α-CD3 and α-CD28 were attached to the platforms and their capability to activate T cells was assessed. Experiments were performed with a Jurkat reporter cell line which expresses green fluorescent protein (GFP) upon activation, providing a rapid and reliable readout by flow cytometry. Carriers clearly outperformed conventional compounds for activation (i.e.antibodies crosslinked with anti-IgG antibody) at significantly lower dosages. These findings could be confirmed by confocal laser scanning microscopy (CLSM), showing accumulation of the functional nanoplatforms at the cell surface and cytoplasmic GFP expression (>95% activation of cells for the multivalent conjugates at 10 μg mL?1compared to 37% activation with conventionally crosslinked mAbs at 25 μg mL?1), whereas carriers without mAbs could not activate cells. As the attachment of biotinylated molecules to the functional nanoplatforms is straightforward, the results obtained show the great potential of our platforms for a broad range of applications.