These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: CD90-positive cells, an additional cell population, produce laminin alpha2 upon transplantation to dy(3k)/dy(3k) mice.
    Author: Fukada S, Yamamoto Y, Segawa M, Sakamoto K, Nakajima M, Sato M, Morikawa D, Uezumi A, Miyagoe-Suzuki Y, Takeda S, Tsujikawa K, Yamamoto H.
    Journal: Exp Cell Res; 2008 Jan 01; 314(1):193-203. PubMed ID: 17963748.
    Abstract:
    Laminin alpha2 is a component of skeletal and cardiac muscle basal lamina. A defect of the laminin alpha2 chain leads to severe congenital muscular dystrophy (MDC1A) in humans and dy/dy mice. Myogenic cells including myoblasts, myotubes, and myofibers in skeletal muscle are a possible source of the laminin alpha2 chain, and myogenic cells are thus proposed as a cell source for congenital muscular dystrophy therapy. However, we observed production of laminin alpha2 in non-myogenic cells of normal mice, and we could enrich these laminin alpha2-producing cells in CD90(+) cell fractions. Intriguingly, the number of CD90(+) cells increased dramatically during skeletal muscle regeneration in mice. This fraction did not include myogenic cells but exhibited a fibroblast-like phenotype. Moreover, these cells were resident in skeletal muscle, not derived from bone marrow. Finally, the production of laminin alpha2 in CD90(+) cells was not dependent on fusion with myogenic cells. Thus, CD90(+) cells are a newly identified additional cell fraction that increased during skeletal muscle regeneration in vivo and could be another cell source for therapy for lama2-deficient muscular dystrophy.
    [Abstract] [Full Text] [Related] [New Search]