Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2007-9-14
pubmed:abstractText
Cutaneous wound healing is a well-coordinated process that includes inflammation, proliferation, and differentiation. Activator protein 1 (AP-1) subunits have been implicated in the regulation of genes important for these processes and have been shown to be involved in wound healing. However, investigation of human healing and non-healing wounds in vivo and ex vivo, and the comparative analysis of several members of the Jun and Fos families are still missing. Here, we show that normal human epidermal wound healing is biphasic. In the first phase all AP-1 subunits investigated, that is c-Jun, Jun B, Jun D, c-Fos, and Fos B are absent from the nuclei at the wound margins/leading edges. This downregulation coincides with that of the gap junction protein connexin 43. Later on, c-Jun, Jun B, Jun D, and c-Fos reappear in the nuclei of the leading edges in a time-dependent manner. In non-healing wounds, a more intensive staining of keratinocytes at the wound margins is often observed. Our findings suggest that coordinated down- and upregulation of the various AP-1 subunits in the course of epidermal wound healing is important for its undisturbed progress, putatively by influencing inflammation and cell-cell communication.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
1523-1747
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
127
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2453-62
pubmed:meshHeading
pubmed-meshheading:17495958-Adolescent, pubmed-meshheading:17495958-Adult, pubmed-meshheading:17495958-Aged, pubmed-meshheading:17495958-Aged, 80 and over, pubmed-meshheading:17495958-Biopsy, pubmed-meshheading:17495958-Cell Differentiation, pubmed-meshheading:17495958-Cell Proliferation, pubmed-meshheading:17495958-Connexin 43, pubmed-meshheading:17495958-Down-Regulation, pubmed-meshheading:17495958-Epidermis, pubmed-meshheading:17495958-Female, pubmed-meshheading:17495958-Gene Expression Regulation, pubmed-meshheading:17495958-Humans, pubmed-meshheading:17495958-Male, pubmed-meshheading:17495958-Middle Aged, pubmed-meshheading:17495958-Proto-Oncogene Proteins c-fos, pubmed-meshheading:17495958-Proto-Oncogene Proteins c-jun, pubmed-meshheading:17495958-Transcription Factor AP-1, pubmed-meshheading:17495958-Up-Regulation, pubmed-meshheading:17495958-Wound Healing
pubmed:year
2007
pubmed:articleTitle
Biphasic regulation of AP-1 subunits during human epidermal wound healing.
pubmed:affiliation
Department of Dermatology and Venerology, University Hospital Hamburg-Eppendorf, Hamburg, Germany.
pubmed:publicationType
Journal Article, Comparative Study