title: White sorghum (Sorghum bicolor (L.) Moench) bran extracts suppressed IgE production by U266 cells.
abstract: Sorghum, Sorghum bicolor (L.) Moench, is the fifth most important cereal crop in the world. In this study, we identified the IgE production-suppressing activity of white sorghum bran extracts. White sorghum is one of the genotypes of sorghum. White sorghum bran extracts in 10 mM sodium phosphate buffer (pH 7.4) suppressed IgE production in human myeloma cell line U266. The extracts suppressed IgE production by decreasing mRNA transcription level of IgE, but they did not affect IgA or IgG production of mice splenocytes in vitro. Heat treatment and trypsin digestion did not affect IgE production-suppressing activity. The white sorghum bran extracts were fractionated by ultrafiltration, and the molecular weight of the active substance was estimated to be less than 1,000.
authors.affiliation: Faculty of Agriculture, Ehime University, 3-5-7 Tarumi, Matsuyama, Ehime 790-8566, Japan. mars95@agr.ehime-u.ac.jp
authors.forename: Takuya
authors.initials: T
authors.lastname: Sugahara
authors.forename: Sogo
authors.initials: S
authors.lastname: Nishimoto
authors.forename: Yoko
authors.initials: Y
authors.lastname: Morioka
authors.forename: Koichi
authors.initials: K
authors.lastname: Nakano
authors.forename: Keiko
authors.initials: K
authors.lastname: Nakano
mesh_terms: D000818:Animals; D001483:Base Sequence; D045744:Cell Line, Tumor; D017931:DNA Primers; D004797:Enzyme-Linked Immunosorbent Assay; D006801:Humans; D007073:Immunoglobulin E / Q000096:biosynthesis* / Q000235:genetics; D051379:Mice; D009101:Multiple Myeloma / Q000378:metabolism* / Q000473:pathology; D010936:Plant Extracts / Q000494:pharmacology*; D012333:RNA, Messenger / Q000235:genetics; D020133:Reverse Transcriptase Polymerase Chain Reaction; D045868:Sorghum / Q000737:chemistry*; D013154:Spleen / Q000187:drug effects / Q000378:metabolism
chemical_list: D017931:DNA Primers; D010936:Plant Extracts; D012333:RNA, Messenger; D007073:Immunoglobulin E