title: Novel localization of tenascin-X in adult mouse leptomeninges and choroid plexus.
abstract: Tenascin-X (Tn-X) belongs to the tenascin family of glycoproteins and is clearly associated with the human connective tissue disorder Ehlers-Danlos syndrome. Recently, human single nucleotide polymorphism analyses showed that Tn-X is associated with schizophrenia. Tn-X-related central nervous system (CNS) disorder has been reported in recent years. However, details of Tn-X localization are not clear in the adult cerebral cortex and its meninges. Using immunohistochemical techniques, we found novel localizations of Tn-X in the leptomeningeal trabecula (TB) of adult mice and in the connective tissue of the choroid plexus (CP) in the brains of mice. Subsequent immunohistochemical studies showed complementary localization of Tn-X in the leptomeninges and CP. Localization of tenascin-C was not detected in the leptomeningeal TB or in the connective tissue of the CP. These results might provide insight into the role of Tn-X in the pathogenesis of disorders in the CNS.
authors.affiliation: Department of Anatomy, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, Japan. imurako@tky.ndu.ac.jp
authors.forename: Kosuke
authors.initials: K
authors.lastname: Imura
authors.forename: Iwao
authors.initials: I
authors.lastname: Sato
mesh_terms: D000818:Animals; D002831:Choroid Plexus / Q000166:cytology / Q000502:physiology*; D003094:Collagen / Q000235:genetics; D006801:Humans; D007150:Immunohistochemistry; D008578:Meninges / Q000166:cytology / Q000502:physiology*; D051379:Mice; D008813:Mice, Inbred ICR; D019063:Tenascin / Q000032:analysis* / Q000172:deficiency / Q000235:genetics
chemical_list: D019063:Tenascin; C081865:tenascin X; D003094:Collagen