Determination of antigenic proteins of housedust mites in 90 dogs suffering from atopic dermatitis.
Housedust mites, Dermatophagoides pteronyssinus (D. pteronyssinus) and Dermatophagoides farinae (D. farinae), are the important causative agents of allergic diseases in human and animals. By using 165 dogs suffering from atopic dermatitis (AD), serum levels of immunogloblin E (IgE) antibody against 25 kinds of allergen including housedust mites were determined. Housedust mites were the most frequent allergen against which 90 of the 165 allergic dogs (54.5%) by IMMUNODOT assay. With the further analysis of immunoblotting assay in the 90 dogs sensitized with housedust mites, antigenic proteins of housedust mites recognized by IgE antibodies were with the apparent molecular masses of 15, 76, 90, 98, and 170-kD. Among them, the 15-kD protein that might be identical to Group 2 antigens (Der f2, Der p2) was prominently observed (52/90). This study indicates that about a half of dogs with AD were sensitized to housedust mites, suggesting that Group 2 antigens of housedust mites may be a major allergen in canine AD.
Yamashita
Kohei
K
Pharmaceutical Research Laboratory, Hitachi Chemical Co., Ltd., Hitachi-shi, Ibaraki, Japan.
Fujiwara
Chiharu
C
Azuma
Ryouji
R
Sawazaki
Takeshi
T
Nakao
Yoshiki
Y
Hasegawa
Atsuhiko
A
D000818:Animals; D039741:Antigens, Dermatophagoides / Q000032:analysis* / Q000737:chemistry / Q000145:classification / Q000276:immunology; D003876:Dermatitis, Atopic / Q000276:immunology / Q000662:veterinary*; D004283:Dog Diseases / Q000276:immunology*; D004285:Dogs; D004391:Dust; D004591:Electrophoresis, Polyacrylamide Gel / Q000662:veterinary; D004797:Enzyme-Linked Immunosorbent Assay / Q000662:veterinary; D005260:Female; D015151:Immunoblotting / Q000662:veterinary; D007073:Immunoglobulin E / Q000097:blood* / Q000276:immunology; D008297:Male; D008970:Molecular Weight; D039981:Pyroglyphidae / Q000276:immunology*
D039741:Antigens, Dermatophagoides; D004391:Dust; D007073:Immunoglobulin E