Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
11
pubmed:dateCreated
2008-10-21
pubmed:abstractText
That endogenous sex steroid hormones profoundly influence the response to cutaneous injury is well established. How they and other factors combine to direct repair in male and female animals is much less well understood. Using a murine incisional wound-healing model, we investigated the roles of circulating sex steroids, macrophage migration inhibitory factor (MIF) (the mediator of delayed healing in ovariectomized animals), and hormone- and MIF-independent factors in controlling repair. We report that d 3 wounds, of comparable size in intact male and female mice, are significantly larger in ovariectomized female animals than in castrated males, suggesting that native sex hormones mask inherent underlying differences in the ways in which males and females respond to wounding. Wound MIF levels were comparable in intact male and female mice but greater in ovariectomized females than castrated males. Furthermore, wound levels of Jun activation domain-binding protein 1 (JAB1), a key factor by which MIF activates intracellular responses, were increased through ovariectomy and greater in ovariectomized females than castrated males. This difference in wound JAB1 levels may underscore the marked sex difference we observed in the responses of MIF knockout mice to the local application of MIF: healing was impaired in ovariectomized females but not castrated males. Separately, systemic treatment with androgens and estrogens yielded contrasting effects on repair in male and female animals. Collectively, the presented data indicate sex divergence in wound healing to be multifaceted, being strongly influenced by MIF and seemingly limited by the combined actions of gonadal steroids.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Nov
pubmed:issn
0013-7227
pubmed:author
pubmed:issnType
Print
pubmed:volume
149
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5747-57
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:18653719-Animals, pubmed-meshheading:18653719-Castration, pubmed-meshheading:18653719-Cells, Cultured, pubmed-meshheading:18653719-Extracellular Signal-Regulated MAP Kinases, pubmed-meshheading:18653719-Female, pubmed-meshheading:18653719-Gonadal Steroid Hormones, pubmed-meshheading:18653719-Inflammation, pubmed-meshheading:18653719-Intracellular Signaling Peptides and Proteins, pubmed-meshheading:18653719-Macrophage Migration-Inhibitory Factors, pubmed-meshheading:18653719-Male, pubmed-meshheading:18653719-Mice, pubmed-meshheading:18653719-Mice, Inbred BALB C, pubmed-meshheading:18653719-Mice, Knockout, pubmed-meshheading:18653719-Models, Biological, pubmed-meshheading:18653719-Peptide Hydrolases, pubmed-meshheading:18653719-Sex Characteristics, pubmed-meshheading:18653719-Signal Transduction, pubmed-meshheading:18653719-Wound Healing
pubmed:year
2008
pubmed:articleTitle
Sex dimorphism in wound healing: the roles of sex steroids and macrophage migration inhibitory factor.
pubmed:affiliation
Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't