title: Effects of atelocollagen on neural stem cell function and its migrating capacity into brain in psychiatric disease model.
abstract: Stem cell therapy is well proposed as a potential method for the improvement of neurodegenerative damage in the brain. Among several different procedures to reach the cells into the injured lesion, the intravenous (IV) injection has benefit as a minimally invasive approach. However, for the brain disease, prompt development of the effective treatment way of cellular biodistribution of stem cells into the brain after IV injection is needed. Atelocollagen has been used as an adjunctive material in a gene, drug and cell delivery system because of its extremely low antigenicity and bioabsorbability to protect these transplants from intrabody environment. However, there is little work about the direct effect of atelocollagen on stem cells, we examined the functional change of survival, proliferation, migration and differentiation of cultured neural stem cells (NSCs) induced by atelocollagen in vitro. By 72-h treatment 0.01-0.05% atelocollagen showed no significant effects on survival, proliferation and migration of NSCs, while 0.03-0.05% atelocollagen induced significant reduction of neuronal differentiation and increase of astrocytic differentiation. Furthermore, IV treated NSCs complexed with atelocollagen (0.02%) could effectively migrate into the brain rather than NSC treated alone using chronic alcohol binge model rat. These experiments suggested that high dose of atelocollagen exerts direct influence on NSC function but under 0.03% of atelocollagen induces beneficial effect on regenerative approach of IV administration of NSCs for CNS disease.
authors.affiliation: Department of Neuropsychiatry, Sapporo Medical University, School of Medicine, S-1, W-16, Chuo-ku, Sapporo, 060-8543, Japan, toshi@sapmed.ac.jp.
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Yoshinaga
authors.forename: Eri
authors.initials: E
authors.lastname: Hashimoto
authors.forename: Wataru
authors.initials: W
authors.lastname: Ukai
authors.forename: Takao
authors.initials: T
authors.lastname: Ishii
authors.forename: Tomohiro
authors.initials: T
authors.lastname: Shirasaka
authors.forename: Yoshiyasu
authors.initials: Y
authors.lastname: Kigawa
authors.forename: Masaru
authors.initials: M
authors.lastname: Tateno
authors.forename: Hiroo
authors.initials: H
authors.lastname: Kaneta
authors.forename: Kimihiko
authors.initials: K
authors.lastname: Watanabe
authors.forename: Takeshi
authors.initials: T
authors.lastname: Igarashi
authors.forename: Seiju
authors.initials: S
authors.lastname: Kobayashi
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Sohma
authors.forename: Tadafumi
authors.initials: T
authors.lastname: Kato
authors.forename: Toshikazu
authors.initials: T
authors.lastname: Saito
mesh_terms: D000818:Animals; D001921:Brain / Q000166:cytology; D002454:Cell Differentiation / Q000187:drug effects*; D002465:Cell Movement / Q000187:drug effects*; D049109:Cell Proliferation / Q000187:drug effects; D002470:Cell Survival / Q000187:drug effects; D002478:Cells, Cultured; D003094:Collagen / Q000494:pharmacology*; D004195:Disease Models, Animal; D004797:Enzyme-Linked Immunosorbent Assay; D007150:Immunohistochemistry; D058953:Neural Stem Cells / Q000166:cytology* / Q000187:drug effects*; D051381:Rats; D017208:Rats, Wistar; D033581:Stem Cell Transplantation / Q000379:methods
chemical_list: C059821:atelocollagen; D003094:Collagen
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