title: Tissue expression and cellular localization of phospholipid hydroperoxide glutathione peroxidase (PHGPx) mRNA in male mice.
abstract: Phospholipid hydroperoxide glutathione peroxidase (PHGPx) is an ubiquitous antioxidant enzyme, but the exact expression pattern in mammalian tissues is still unknown. The expression and cellular localization of PHGPx mRNA were examined in male mice using real time-polymerase chain reaction and in situ hybridization techniques. The rank order of PHGPx mRNA expression across tissues exhibiting substantial levels of expression was:testes >> heart > cerebrum > or = ileum > stomach = liver = jejunum > or = epididymis. In testes, PHGPx mRNA was highly expressed in spermiogenic cells and Leydig cells. The signal was also expressed in the molecular layer, Purkinje cell layer, and white matter of cerebellum, the pituicytes of neurohypophysis, the parafollicular cells and follicular basement membrane of thyroid, the exocrine portion of pancreas, the tubular epithelium of kidney, the smooth muscle cells of arteries, and the red pulp of spleen. In the gastrointestinal tract, PHGPx mRNA expression was mainly observed in the keratinized surface epithelium of forestomach, the submucosal glands and serosa layers, and further the Paneth cells of intestines. PHGPx mRNA appeared to be ubiquitously expressed in the parenchyma of heart, liver, and lung. These results indicate that PHGPx exhibits a cell- and tissue-specific expression pattern in mice.
authors.affiliation: College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungbuk National University, Cheongju 361-763, Korea.
authors.forename: In-Jeoung
authors.initials: IJ
authors.lastname: Baek
authors.forename: Dong-Suk
authors.initials: DS
authors.lastname: Seo
authors.forename: Jung-Min
authors.initials: JM
authors.lastname: Yon
authors.forename: Se-Ra
authors.initials: SR
authors.lastname: Lee
authors.forename: Yan
authors.initials: Y
authors.lastname: Jin
authors.forename: Sang Soep
authors.initials: SS
authors.lastname: Nahm
authors.forename: Jae-Hwang
authors.initials: JH
authors.lastname: Jeong
authors.forename: Young-Kug
authors.initials: YK
authors.lastname: Choo
authors.forename: Jong-Koo
authors.initials: JK
authors.lastname: Kang
authors.forename: Beom Jun
authors.initials: BJ
authors.lastname: Lee
authors.forename: Young Won
authors.initials: YW
authors.lastname: Yun
authors.forename: Sang-Yoon
authors.initials: SY
authors.lastname: Nam
mesh_terms: D000818:Animals; D018507:Gene Expression Regulation, Developmental; D015971:Gene Expression Regulation, Enzymologic; D005979:Glutathione Peroxidase / Q000235:genetics / Q000378:metabolism*; D017403:In Situ Hybridization; D008297:Male; D051379:Mice; D000080662:Phospholipid Hydroperoxide Glutathione Peroxidase; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000378:metabolism*; D014018:Tissue Distribution
chemical_list: D012333:RNA, Messenger; D000080662:Phospholipid Hydroperoxide Glutathione Peroxidase; D005979:Glutathione Peroxidase