Effect of Cosensitization with Buckwheat Flour Extract on the Production of House Dust Mite-specific IgE.
10.3346/jkms.2007.22.2.198
- Author:
Youn Ho SHIN
1
;
Myung Hyun SOHN
;
Sejo OH
;
Kyung Eun LEE
;
Tae Soon YONG
;
Jung Won PARK
;
Chein Soo HONG
;
Kyu Earn KIM
;
Soo Young LEE
Author Information
1. Department of Pediatrics, Pochon CHA University College of Medicine, Seoul, Korea.
- Publication Type:Original Article ; Research Support, Non-U.S. Gov't
- Keywords:
Buckwheat;
House Dust Mite;
Immunoglobulin E;
Bystander Effect;
Animal Models
- MeSH:
Pyroglyphidae/*immunology;
Plant Extracts/adverse effects;
Mice, Inbred C3H;
Mice;
Immunoglobulin E/*immunology;
Immunization/*methods;
Food Hypersensitivity/*immunology;
Flour/*adverse effects;
Female;
Fagopyrum/*adverse effects;
Disease Models, Animal;
Dermatitis, Atopic/*immunology;
Animals
- From:Journal of Korean Medical Science
2007;22(2):198-204
- CountryRepublic of Korea
- Language:English
-
Abstract:
There are studies reporting food sensitization in infancy increases the risk of sensitization to inhalants later in life. We performed a study to evaluate whether cosensitization with buckwheat (BW) has an effect on the production of house dust mite-IgE. C3H/HeJ mice (4 weeks, female) were sensitized with house dust mite (HDM)/Al (OH)3, intraperitoneally on day 0, followed by 4 intranasal sensitizations (on days 14, 15, 16, and 21). Group 1 was cosensitized intragastrically with BW/cholera toxin (CT) (on days 0, 1, 2, 7, and 18) during sensitization with HDM, group 2 was cosensitized intragastrically with CT only (on days 0, 1, 2, 7, and 18), and group 3 was used as controls. HDM- and BW-IgE and antigen-specific T-cell proliferation and cytokine production were evaluated. In Group 1, BW-IgE levels were highest at week 4, and the HDM-IgE at week 3 (98.45+/-64.37 ng/mL and 169.86+/-55.54 ng/mL, respectively). In Group 2, HDM-IgE levels reached a peak at week 3, remarkably higher (810.52+/-233.29 ng/mL) compared to those of Group 1 (169.86+/-55.54 ng/mL). The interleukin (IL)-4 and interferon (IFN)-gamma in the HDM-stimulated culture supernatants of splenocytes were not significantly different among groups. We postulate that the cosensitization with BW may down-regulate the specific IgE response to HDM.
