Pegtarazimod
Pegtarazimod (RLS-0071) is a dual-target anti-inflammatory peptide that exerts its effects by simultaneously regulating the complement system and neutrophil-associated inflammatory pathways. Pegtarazimod reduces ROS production both in vitro and in vivo, and decreases the level of neutrophil elastase, a marker of neutrophil extracellular traps (NETs), in vivo, thereby alleviating inflammatory responses. Pegtarazimod significantly improves the survival rate of mice in multiple in vivo models of acute graft-versus-host disease (aGVHD). Pegtarazimod inhibits the activation of the C1 complex, reduces the herpes zoster-like spread of herpes simplex virus type 1 skin infection, and improves the survival rate of infected mice. Pegtarazimod can be used in research related to acute graft-versus-host disease, acute pulmonary diseases, and skin herpes simplex virus type 1 infection.
For research use only. We do not sell to patients.
- CAS No.: 2056232-82-5
- Formula: C122H224N20O46S2
- Molecular Weight:2771.32
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Storage:
Please store the product under the recommended conditions in the Certificate of Analysis.
Biological Activity
Description
In Vitro
Pegtarazimod reduces reactive oxygen species (ROS) production in an unspecified in vitro cell system[1].
Pegtarazimod (0.3-2.8 mg/mL) inhibits classical complement pathway activation in spiked normal human plasma in a dose-dependent manner, with 40% inhibition at 0.3 mg/mL and over 80% inhibition at 2.8 mg/mL[2].
Pegtarazimod (0.3-22 mg/mL; 30 min (neutrophil incubation at room temperature); 2 h (CCK-8 dye incubation at 37 °C)) increases the survival of purified human neutrophils ex vivo in a dose-dependent manner[2].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
In Vivo
Pegtarazimod (14.4 mM (40 mg/mL); topical; twice daily; 14 days) formulated in HEC gel significantly reduces vesicle formation and promotes complete lesion healing by day 12 in ACVR-HSV-1-infected BALB/cJ mice[3].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
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Animal Model:BALB/cJ (5-6-week-old female; HSV-1 scratch-inoculated)[3]
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Dosage:14.4 mM (40 mg/mL)
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Administration:topical; twice daily; 14 days
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Result:Achieved a 53.3% survival rate over 14 days.
Significantly reduced vesicle formation on days 9-14 post-infection.
Promoted lesion healing starting on day 9.
Significantly reduced averaged infection scores across 14 days.
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Animal Model:BALB/cJ (5-6-week-old female; ACVR-HSV-1 scratch-inoculated)[3]
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Dosage:14.4 mM (40 mg/mL)
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Administration:topical; twice daily; 14 days
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Result:Significantly reduced vesicle and erosion formation compared to DMSO-treated animals on days 3, 4, and 8-12 post-infection.
Significantly decreased vesicle formation compared to acyclovir-treated animals from days 7-12 post-infection.
Promoted complete healing of infected vesicles by day 12.
Clinical Trial
| NCT Number | Sponsor | Condition | Start Date |
Phase
|
|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 2056232-82-5
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Molecular Weight 2771.32
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Formula C122H224N20O46S2
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Synonyms
RLS-0071
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Sequence
Ile-Ala-Leu-Ile-Leu-Glu-Pro-Ile-Cys-Cys-Gln-Glu-Arg-Ala-Ala-{PEG24 acid}
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Sequence Shortening
IALILEPICCQERAA-{PEG24 acid}
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Please store the product under the recommended conditions in the Certificate of Analysis.
Purity & Documentation
References
Calculators
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)