Protein Information

Name IgE
Synonyms IGHE; Ig epsilon chain C region; IgE; immunoglobulin heavy constant epsilon; Ig epsilon chain C regions; IgEs; immunoglobulin heavy constant epsilons

Compound Information

Name potassium cyanate
CAS potassium cyanate

Reference List

PubMed Abstract RScore(About this table)
12358997 Cirkovic T, Gavrovic-Jankulovic M, Prisic S, Jankov RM, Burazer L, Vuckovic O, Sporcic Z, Paranos S: The influence of a residual group in low-molecular-weight allergoids of Artemisia vulgaris pollen on their allergenicity, IgE- and IgG-binding properties. Allergy. 2002 Nov;57(11):1013-20.

BACKGROUND: Reaction of epsilon-amino groups of lysine with potassium cyanate, maleic, or succinic anhydride leads to allergoids of low molecular weight.
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15918297 Ariano R, Panzani RC, Mistrello G: Efficacy of sublingual coseasonal immunotherapy with a monomeric allergoid in Cupressaceae pollen allergy--preliminary data. Eur Ann Allergy Clin Immunol. 2005 Mar;37(3):103-8.


RESULTS: The evaluation of the allergenic potency of native and modified Cupressus arizonica extracts have shown that the modified extract has a decreased skin test IgE binding capacity.
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7927511 Mistrello G, Roncarolo D, Gentili M, Zanoni D, Falagiani P: Modified par j I allergen from P judaica pollen and its rate of absorption in rats. Immunol Lett. 1994 Apr;40(1):31-6.

We describe a simple procedure aimed at developing an original modified allergen with significantly less allergenic potential (intended as human IgE-binding capacity) but preserving the monomeric nature of the molecule.
Par j I allergen was then modified by reaction with potassium cyanate (KCNO), and compared with the native allergen to evaluate its allergenic potency (RAST-inhibition) and molecular weight (SDS-PAGE).
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12483034 Mistrello G, Roncarolo D, Zanoni D, Zanotta S, Amato S, Falagiani P, Ariano R: Allergenic relevance of Cupressus arizonica pollen extract and biological characterization of the allergoid. Int Arch Allergy Immunol. 2002 Dec;129(4):296-304.

RAST inhibition and ELISA showed that modified PPT C. arizonica extract had less IgE reactivity than the native, non-modified extract, while preserving the immunogenic capacity typical for an allergoid.
The major allergen of C. arizonica (Cup a 1), purified by anion exchange chromatography, was checked by immunoblotting experiments before chemical modification, in parallel with a C. arizonica extract, with potassium cyanate (KCNO) to obtain a monomeric allergoid.
1(0,0,0,1) Details
17914274 Mistrello G, Harfi H, Roncarolo D, Kwaasi A, Zanoni D, Falagiani P, Panzani R: Date palm pollen allergoid: characterization of its chemical-physical and immunological properties. Int Arch Allergy Immunol. 2008;145(3):224-30. Epub 2007 Oct 3.

The aim of our work was to evaluate IgE cross-reactivity between DP and autochthonous palm (European fan palm, EFP) pollen extracts, to chemically modify DP extract with potassium cyanate in order to obtain an allergoid, and to characterize it.
34(0,1,1,4) Details