Linked Life Data

20043013

Source:http://linkedlifedata.com/resource/pubmed/id/20043013

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-3-16
pubmed:abstractText
Hair follicles (HFs) maintain a peripheral, functional equivalent of the hypothalamic-pituitary-adrenal (HPA) axis, whose most proximal element is corticotropin-releasing hormone (CRH). The mast cell (MC)-rich connective-tissue sheath (CTS) of mouse vibrissa HFs harbors MC precursors. Differentiation of these MC precursors into mature MCs can be induced by stem cell factor (SCF). We have investigated whether the MC progenitors of normal human scalp HF CTS respond to stimulation with CRH. Microdissected anagen HFs and full-thickness scalp skin were treated with CRH (10(-7) M). CRH treatment induced the degranulation of CTS MCs, in addition to increasing the number of CTS MCs in full-thickness skin and HF organ cultures in situ. In the latter, cells with characteristic MC features emigrated from the CTS. CRH-receptor protein expression in the CTS was colocalized with Kit expression on some CTS MCs in situ. CRH treatment upregulated SCF mRNA and protein expression within the HF epithelium. In skin organ culture, CRH-induced degranulation of CTS MCs was abolished by anti-SCF antibody. We demonstrate that human skin is an extramedullary reservoir for MC precursors, and we have identified a regulatory loop between CRH and SCF signaling. This highlights a previously unpublished finding about neuroendocrine control of human MC biology.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
1523-1747
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
995-1004
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Corticotropin-releasing hormone stimulates the in situ generation of mast cells from precursors in the human hair follicle mesenchyme.
pubmed:affiliation
Department of Dermatology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
pubmed:publicationType
Journal Article, In Vitro, Research Support, Non-U.S. Gov't