Dietary apigenin suppresses IgE and inflammatory cytokines production in C57BL/6N mice.
Flavonoids ubiquitously exist in plants, vegetables, fruits, and teas. We evaluated the effect of dietary apigenin, one of the well-known flavonoids, on the immune system in C57BL/6N mice. Mice were fed experimental diets containing apigenin for 2 weeks. After the experimental period, there was no significant difference in body and organ weights between the control and the apigenin group. The total immunoglobulin (Ig) E levels in mice fed apigenin were significantly suppressed, whereas levels of IgG, IgM, and IgA were not affected. We also examined the effect of the apigenin diet on cytokine expression in mice sera using a cytokine array. The production of regulated upon activation normal T cell expressed and secreted (RANTES) and soluble tumor necrosis factor receptor I (sTNFRI) in mice sera was down-regulated by the apigenin diet. These results suggest that a diet containing apigenin can reduce serum IgE and inflammatory cytokines such as RANTES and sTNFRI in mice.
Yano
Satomi
S
Laboratory of Food Chemistry, Division of Applied Biological Chemistry, Department of Bioscience and Biotechnology, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan.
Umeda
Daisuke
D
Maeda
Norihide
N
Fujimura
Yoshinori
Y
Yamada
Koji
K
Tachibana
Hirofumi
H
D000818:Animals; D047310:Apigenin / Q000008:administration & dosage*; D016207:Cytokines / Q000097:blood* / Q000235:genetics; D004032:Diet; D005786:Gene Expression Regulation / Q000187:drug effects; D007109:Immunity / Q000187:drug effects*; D007070:Immunoglobulin A / Q000097:blood; D007073:Immunoglobulin E / Q000097:blood*; D007074:Immunoglobulin G / Q000097:blood; D007075:Immunoglobulin M / Q000097:blood; D008214:Lymphocytes / Q000737:chemistry; D008297:Male; D051379:Mice; D008810:Mice, Inbred C57BL; D012333:RNA, Messenger / Q000032:analysis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D013154:Spleen / Q000166:cytology
D016207:Cytokines; D007070:Immunoglobulin A; D007074:Immunoglobulin G; D007075:Immunoglobulin M; D012333:RNA, Messenger; D007073:Immunoglobulin E; D047310:Apigenin