Display Settings:

Format

Send to:

Choose Destination
    Tissue Eng Part A. 2009 May;15(5):1119-25.

    Chemoattraction of progenitor cells by remodeling extracellular matrix scaffolds.

    Source

    McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.

    Abstract

    The chemotactic properties of a biologic scaffold composed of extracellular matrix (ECM) and subjected to in vivo degradation and remodeling were evaluated in a mouse model of Achilles tendon reconstruction. Following a segmental resection of the Achilles tendon in both C57BL/6 and MRL/MpJ mice, the defect was repaired with either an ECM scaffold composed of urinary bladder matrix (UBM) or resected autologous tendon. The surgically repaired and the contralateral tendons were harvested at 3, 7, and 14 days following surgery from each animal. Chemotaxis of multipotential progenitor cells toward the harvested tissue was quantified using a fluorescent-based cell migration assay. Results showed greater migration of progenitor cells toward tendons repaired with UBM-ECM scaffold compared to both the tendons repaired with autologous tissue and the normal contralateral tendon in both the MRL/MpJ and C57BL/6 mice. The magnitude and temporal pattern of the chemotactic response differed between the two mouse strains.

    PMID:
    18837648
    [PubMed - indexed for MEDLINE]
    PMCID:
    PMC2789572
    Free PMC Article

    Images from this publication.See all images (3) Free text

    FIG. 1.
    FIG. 3.
    FIG. 2.

      Supplemental Content

      Icon for Atypon Icon for PubMed Central

      Save items

      loading

      Recent activity

      Your browsing activity is empty.

      Activity recording is turned off.

      Turn recording back on

      See more...
      Write to the Help Desk