Endothelin-1 stimulates oral fibroblasts to promote oral cancer invasion.
Life Sci
; 91(13-14): 557-61, 2012 Oct 15.
Article
in En
| MEDLINE
| ID: mdl-22525370
ABSTRACT
AIMS:
The aims of this study were to examine the role of endothelin-1 (ET-1), a pleiotropic peptide found at elevated levels in a number of malignancies and which has been shown to influence oral cancer cell behaviour via paracrine signalling pathways, on the phenotype of oral fibroblasts. MAINMETHODS:
The effect of ET-1 on proliferation and migration of human primary oral fibroblasts was assessed using MTS and scratch assays, respectively. The ability of ET-1 to affect fibroblast contractility was analysed using type-I collagen gels. Changes in gene expression in oral fibroblasts exposed to ET-1 were examined using quantitative PCR. The invasiveness of oral cancer cells in the presence of conditioned media collected from ET-1 treated fibroblasts was determined using 2D Matrigel assays. KEYFINDINGS:
Here we provide evidence that ET-1 increases the migration of oral fibroblasts and induces a more contractile phenotype which is not associated with changes in gene expression indicative of myofibroblast transdifferentiation. In addition we provide evidence that conditioned medium of ET-1-stimulated oral fibroblasts promotes invasion of OSCC cells in vitro.SIGNIFICANCE:
In oral squamous cell carcinoma, a frequently fatal and increasingly common epithelial malignancy of the oral cavity, ET-1 is known to contribute to pro-migratory paracrine signalling between stromal fibroblasts and cancer cells. The ability of ET-1 to modulate the phenotype of human oral stromal fibroblasts, however, has not previously been reported. The findings presented here suggest that targeting the stromal endothelin system may be a viable and novel therapeutic strategy for invasive oral cancer.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Mouth Neoplasms
/
Carcinoma, Squamous Cell
/
Endothelin-1
/
Fibroblasts
Limits:
Animals
/
Humans
Language:
En
Journal:
Life Sci
Year:
2012
Document type:
Article
Affiliation country:
United kingdom