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Cellular Changes of Phenotype and Collagenase-1 Expression in Healing Corneal Stromal cells  

Jung, Jae-Chang (Department of Biology, College of Natural Sciences, Kyungpook National University)
Publication Information
Animal cells and systems / v.7, no.3, 2003 , pp. 271-277 More about this Journal
Abstract
Regulation of endoplasmic reticulum(ER) chaperone, ERp29, in traumatized rat spinal cord was investigated. Compared to the control, ERp29 expression was down-regulated at the lesion site 1 d after spinal cord injury. However, ERp29 expression gradually increased from 3 d after the injury and peaked remarkably after 7 d. Two ER chaperones (GRP94 and BiP) showed constantly strong expression levels 1 d after spinal cord injury while the expression levels of the other two (calnexin and PDI) were unchanged. In the case of ERp72, its expression level was increased 1 d after the injury and gradually decreased thereafter. This study suggests that ERp29 expression in the spinal cord after traumatic injury might be associated with the posttraumatic neural survival, playing a role as a molecular chaperone.
Keywords
Wound healing; Cornea; Stromal fibroblast; Collagenase-1;
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