Comparative study on the modulation of IgE and cytokine production by Phellinus linteus grown on germinated brown rice, Phellinus linteus and germinated brown rice in murine splenocytes

• Published in: Bioscience, biotechnology, and biochemistry Vol. 68; no. 11; pp. 2391 - 2394
• Main Authors: Lim, B.O. (Kon-Kuk Univ., Seoul (Korea R.)), Yamada, K, Cho, B.G, Jeon, T, Hwang, S.G, Park, T, Kang, S.A, Park, D.K
• Format: Journal Article
• Language: English
• Published: Tokyo Japan Society for Bioscience, Biotechnology, and Agrochemistry 01.11.2004; Japan Society for Bioscience Biotechnology and Agrochemistry; Oxford University Press
• Subjects: Animals; Basidiomycota - metabolism; Biological and medical sciences; CD4 Antigens - metabolism; CD8 Antigens - metabolism; Culture Media; cytokine; CYTOKINES; Cytokines - biosynthesis; Eating - drug effects; EDIBLE FUNGI; EXTRACTS; Fundamental and applied biological sciences. Psychology; germinated brown rice; Germination; HYPERSENSITIVITY; immunoglobulin E; Immunoglobulin E - biosynthesis; IMMUNOLOGICAL FACTORS; INTERLEUKINS; Male; Mice; Mice, Inbred ICR; Oryza - metabolism; Phellinus linteus; RICE; Spleen - cytology; Spleen - metabolism; splenocyte; Th1 Cells - metabolism; Th2 Cells - metabolism; Weight Gain - drug effects; Monocotyledones; Immunoglobulins; IgE; germinated brown rice; Cytokine; Basidiomycetes; Splenocyte; immunoglobulin E; Fungi; Oryza sativa; Gramineae; Modulation; Angiospermae; Production; Phellinus linteus; Spermatophyta; Comparative study; Thallophyta; Rice
• ISSN: 0916-8451; 1347-6947
• DOI: 10.1271/bbb.68.2391

We compared the immunomodulating activities in mice of extracts from Phellinus linteus grown on germinated brown rice (PB), Phellinus linteus (PL) alone, and germinated brown rice (BR) alone. The PL, BR and PB-treated mice were administered with the respective extract (2 mg/head/day) by oral gavage for 4 weeks. All extracts markedly decreased the IgE production and allergic responses in serum and splenocytes. PL and PB increased the proportion of CD4+ but not CD8+ T cells in splenocytes. Cytokine production was significantly augmented in all treated mice; the concentration of IFN-gamma was greater in the PL, BR and PB mice than in the control group. The concentration of IL-10 was lower in the BR group than in the other groups. These results may be related to the suppression of IgE production. We conclude that PB modulated the immune responses of IgE production and Th1/Th2 cytokine secretion in murine splenocytes.