KB-1703

Astegolimab

60293

Background of Astegolimab

The IL-33/ST2 pathway is linked with asthma susceptibility. Inhaled allergens, pollutants, and respiratory viruses, which trigger asthma exacerbations, induce release of IL-33, an epithelial-derived "alarmin." Astegolimab, a human IgG2 mAb, selectively inhibits the IL-33 receptor, ST2.

Specifications

Catalog Number	KB-1703
Antibody Name	Astegolimab
Isotype	Human IgG2,kappa
FC Muations	Wild Type
Target	IL33R
Species Reactivity	Human
Host Cell Line	EXPI CHO
Purification Method	Affinity purified
Concentration	>2 mg/mL
Formulation	50 mM sodium citrate,150mM NaCl,pH5.5
Purity	>95% by SDS-PAGE and SEC-HPLC
Validation	ELISA
Endotoxin Level	<0.2 EU/mg as determined by the LAL method
Sterility	0.2μm filtered
Storage	It is recommended that the protein should be aliquoted for optimal storage. Avoid repeated freeze-thaw cycles.
Stability	Stable for twelve months from date of receipt when stored at -20°C to -80°C; Stored at 2-8°C for one month without detectable loss of activity.

Characterization

Application

References

Kelsen SG, Agache IO, Soong W, Israel E, Chupp GL, Cheung DS, Theess W, Yang X, Staton TL, Choy DF, Fong A, Dash A, Dolton M, Pappu R, Brightling CE. Astegolimab (anti-ST2) efficacy and safety in adults with severe asthma: A randomized clinical trial. J Allergy Clin Immunol. 2021 Sep;148(3):790-798.
Maurer M, Cheung DS, Theess W, Yang X, Dolton M, Guttman A, Choy DF, Dash A, Grimbaldeston MA, Soong W. Phase 2 randomized clinical trial of astegolimab in patients with moderate to severe atopic dermatitis. J Allergy Clin Immunol. 2022 Dec;150(6):1517-1524.