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PRODUCT DESCRIPTION
GS-441524 Tablets For Feline Infectious Peritonitis Virus Treatment
Product Description
GS-441524 is an adenosine nucleotide analog antiviral, similar to remdesivi.This molecule was patented in 2009. In vitro studies of GS
have determined it has a higher EC50 than remdesivi against a number of viruses, meaning GS is less potent.This medicine continues to be studied in the treatment of Feline Infectious
Peritonitis Virus, that only infects cats.
Appearance
Tablets
GS Standard
99.5%min
Content
20mg/tablets, 40mg/tablets, or customized
Application
For CAT FIP R&D Use ONLY
Recommended dosage
20 mg/kg
How GS441524 Cures FIP
If a cat's immune system is healthy and mature, the white blood cells should fight off an infection or
virus, and allow the cat to build up an immune response, or antibodies. Cats who develop FIP have an immune defect or deficiency that causes the white blood cells to replicate, rather than
fight, the virus. Essentially, the cats immune system is spreading the virus throughout the cat's body rather than trying to eliminate it. Cats who have no immune response develop wet FIP,
while cats who have a partial immune response develop dry FIP.
The nucleoside analog GS441524 is a molecular precursor to a pharmacologically active nucleoside
triphosphate molecule. These analogs act as an alternative substrate and RNA-chain terminator of viral RNA dependent RNA polymerase. In layman's terms, GS441524 interjects itself into the chain
reaction and stops the replication of the virus.
Pharmacodynamics
GS-441524 nucleoside is phosphorylated with
the aid of using nucleoside kinases (likely adenosine kinase (ADK), that is the enzyme that phosphorylates the structurally comparable ribavirin), after which phosphorylated once more with the
aid of using nucleoside-diphosphate kinase (NDK) to the energetic nucleotide triphosphate form. The triphosphate of GS-441524, GS-443902, is likewise the bioactive anti-viral agent generated
with the aid of using remdesivir, however is generated with the aid of using a extraordinary biochemical mechanism from the later.
Mechanism of
action
Intracellular triple-phosphorylation of
GS-441524 yields its energetic 1'-cyano-substituted adenosine triphosphate analogue, which immediately disrupts viral RNA replication with the aid of using competing with endogenous NTPs for
incorporation into nascent viral RNA transcripts and triggering not on time chain termination of RNA-structured RNA polymerase.
Tolerance
In vitro
experiments in Crandell Rees pussycat kidney (CRFK) cells observed GS-441524
become safe at a hundred µM concentrations, a hundred instances the dose powerful at inhibiting FIPV replication in cultured CRFK cells and inflamed macrophages. Clinical trials in cats imply
the drug is well-tolerated, with the number one aspect impact being dermal inflammation from the acidity of the injection mix.