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Updated: Jul 3, 2026
A Component-resolved Diagnostic Approach for a Study on Grass Pollen Allergens in Chinese Southerners with Allergic Rhinitis and/or Asthma
Published on: June 4, 2017
[Analysis of the allergenicity and immunogenicity of Psilogramma menephron allergen]
Xiu-zhen Sun1, Yun Liu, Ding Zhou
1Respiratory Department of the Second Affiliated Hospital of Medical College, Xi'an Jiaotong University, Shannxi, Xi'an 710004, China.
Objective:
To analyze the allergenicity and immunogenicity of Psilogramma menephron allergen so as to provide the basis for preparing recombinant and standardized allergen vaccines of Psilgramma menephorn.
Methods:
The extracts of Psilgramma menephorn were analyzed by SDS-PAGE, and the allergenicity and immunogenicity of the extracts were tested with 9 sera from allergic patients by means of immunoblotting.
Results:
More than 20 allergen proteins were separated from the extract of Psilgramma menephorn by SDS-PAGE, with the relative molecular weight ranging from 12,000 to 128,000. The relative molecular weight of the allergenic proteins were 74,000 (88.9%), 66,000 (22.2%), 49,000 (22.2%), 36,000 (77.8%), or 25,000 (33.3%), and those of the immunogenic proteins were 79,000 (33.3%), 74,000 (66.7%), 66,000 (22.2%), 49,000 (22.2%), 36,000 (44.4%), or 25,000 (55.6%).
Conclusion:
The relative molecular weight of the major allergenic proteins of Psilgramma menephorn are 74,000 and 36,000, and 74,000 and 25,000 for the major immunogenic proteins. These proteins constitute the major allergenic components for diagnosis and specific treatment of Psilgramma menephorn allergy.
