Journal article
Stress-related mediators stimulate vascular endothelial growth factor secretion by two ovarian cancer cell lines
Clinical cancer research, Vol.9(12), pp.4514-4521
2003
PMID: 14555525
Abstract
Purpose: Stress has long been believed to influence carcinogenesis, but little is known about physiological mechanisms that may underlie these effects. We have recently observed lower levels of vascular endothelial growth factor (VEGF) in ovarian cancer patients with greater social support, whereas higher VEGF was found in patients with greater distress. The goal of this study was to examine possible mechanisms underlying these relationships.
Experimental Design: The effects of stress-related mediators including norepinephrine (NE), epinephrine, isoproterenol (a nonspecific β-adrenergic agonist), and cortisol on the production of VEGF by the ovarian cell lines SKOV3 and EG were investigated.
Results: NE and isoproterenol significantly enhanced VEGF production by SKOV3 cells, and all three of the adrenergic agonists enhanced VEGF production by EG cells. These effects were blocked by the β antagonist propranolol, supporting a role for β-adrenergic receptors in these effects. Reverse transcriptase-PCR studies indicated constitutive expression of β-1 and β-2 adrenergic receptors on both cell lines. Effects of cortisol on VEGF production varied according to the specific cell line and dose, with stimulating effects on SKOV3 at pharmacologic doses (1000 nm) and on EG at physiological stress level doses (10 nm), and inhibitory effects on EG at pharmacologic doses. Although priming with cortisol blunted NE-induced VEGF production from both cell lines at 3 h, significant increases in VEGF were still seen. Priming with cortisol enhanced isoproterenol-induced VEGF production from SKOV3.
Conclusion: These findings provide the first experimental evidence of a pathway by which biobehavioral stress mediators could directly contribute to the progression of ovarian tumors.
Details
- Title: Subtitle
- Stress-related mediators stimulate vascular endothelial growth factor secretion by two ovarian cancer cell lines
- Creators
- Susan K LutgendorfSteven ColeErin CostanzoSarah BradleyJeremy CoffinSarvenaz JabbariKaitlin RainwaterJustine M RitchieMaria Yang - Department of Gynecologic Oncology, The University of Texas M. D. Anderson Cancer Center, Houston, Texas, United StatesAnil K Sood
- Resource Type
- Journal article
- Publication Details
- Clinical cancer research, Vol.9(12), pp.4514-4521
- PMID
- 14555525
- NLM abbreviation
- Clin Cancer Res
- ISSN
- 1078-0432
- eISSN
- 1557-3265
- Publisher
- American Association for Cancer Research; Philadelphia, PA
- Language
- English
- Date published
- 2003
- Academic Unit
- Psychological and Brain Sciences; Iowa Neuroscience Institute; Obstetrics and Gynecology; Urology
- Record Identifier
- 9984065772402771
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