Combined effects of nitric oxide and hypoxia on breast cancer cell migration

Hickok, JR; Sahni, S; Krock, KM; Thomas, DD

HERO ID

975861

Reference Type

Journal Article

Subtype

Abstract

Year

2008

Language

English

HERO ID 975861
Material Type Abstract
In Press No
Year 2008
Title Combined effects of nitric oxide and hypoxia on breast cancer cell migration
Authors Hickok, JR; Sahni, S; Krock, KM; Thomas, DD
Journal Free Radical Biology and Medicine
Volume 45
Issue Suppl.
Page Numbers S53-S53
Abstract Tumor cell invasion is a major component of breast cancer aggressiveness and patient mortality. Although there are a variety of factors that contribute to invasive phenotypes, nitric oxide (NO) plays an important role in influencing the metastatic process. NO can alter tumor cell migration and invasion in either a positive or negative fashion. as these differences may simply be a function of the concentration of NO, we set out to investigate the concentration-dependent parameters of NO that differentially regulate tumor cell migration. We correlate the degree of tumor cell (MDA-MD-231) migration with the concentration and duration of NO exposure. Furthermore, we demonstrate that hypoxia (1% O2) influences the migratory potential of tumor cells by altering the steady-state concentrations of NO. Finally, using both chemical (NO donors) and biological sources (RAW 274.1 cells), we found that both the rate of NO production and its rate of metabolism are critical determinants of tumor cell migration.
Wosid WOS:000260867900144
Url http://www.sciencedirect.com/science/article/pii/S0891584908006229
Is Certified Translation No
Dupe Override No
Conference Location Indianapolis, IN
Conference Name Society for Free Radical Biology and Medicine 15th Annual Meeting
Conference Date November 19-23, 2008
Is Public Yes
Language Text English
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