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GS-9620

Cat No.
CEI-1352
Description
GS-9620 is a potent and selective orally active small-molecule agonist of Toll-like receptor 7(TLR-7).
Product Overview
GS-9620 is an orally active TLR7 agonist with EC50 of 291 nM. Toll-like receptor 7 (TLR7) is a pathogen recognition receptor which plays an important role in the detection of, and the innate immune response to, pathogens. TLR7 signaling is predominantly activated by viral single-stranded RNA and is localized within the endolysosomal compartments of plasmacytoid dendritic cells (pDCs) and B lymphocytes in humans and non-human primates. Activation of pDCs plays an important role in the progress of innate response to viral pathogens and are involved in the majority of type I interferon (IFN) production during the acute phase of an infection by viruses. The induction and secretion of endogenous IFNs, including IFN-α and IFN-β, also induce the development of an efficient adaptive immunological response. Interferons induce the transcription of interferon-stimulated genes (ISGs) which generate an antiviral state within cells, as well as induce the production of other cytokines and chemokines which facilitate intercellular communication and cellular trafficking. GS-9620 could activate TLR7 signaling in immune cells to induce clearance of virus infected cells. GS-9620 selectively induces IFN-α, cytokines and chemokines. The minimum effective concentrations for IFN-α induction were similar in pDCs and in PBMCs from HCV-positive donors. GS-9620 demonstrates an EC50 of 291 nM for human TLR7, which is 30-fold selectivity over TLR8 with EC50 of 9 μM. GS-9620 was administered to HBV infected chimpanzees for 8 weeks with an interval of 1 week. Consequently, serum concentrations of HBV surface antigen and HBV antigen, and the number of HBV antigen-positive hepatocytes, were decreased as hepatocyte apoptosis increased. In a phase 1 clinical trial to evaluate the safety and tolerability of GS-9620, treatment of GS-9620 results in dose dependent increases in select cytokines, chemokines, and ISGs beginning at 2mg and is safe in a single dose up to 12mg. Increases in percentages of immunocytes, like T cells, B cells and NK cells, expressing CD69 were also noted in subjects receiving GS-9620 treatment.
CAS No.
1228585-88-3
Molecular Weight
410.51
Purity
0.9913
Storage
Store at -20°C
Synonyms
GS 9620; GS9620
Targets
TLR-7
Molecular Formula
C22H30N6O2
Chemical Name
4-amino-2-butoxy-8-[[3-(pyrrolidin-1-ylmethyl)phenyl]methyl]-5,7-dihydropteridin-6-one
Solubility
Soluble in DMSO
Shipping Conditions
Evaluation sample solution: ship with blue ice. All other available size: ship with RT, or blue ice upon request
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