New and effective treatments for lung cancer may rest on their ability to hinder the action of estrogen in lung cancer cells, according to two studies published in the current issue of Cancer Research. The University of Pittsburgh studies build on current knowledge about the relationship between estrogen and lung cancer growth and suggest that blocking estrogen may be vitally important to improving survival from the disease.
Since 1930, a 600 percent increase in death rates from lung cancer has been reported in women in the United States, leading some experts to suggest that women may be more susceptible to lung cancer than men. The current research contends that this could be due to the effects of estrogen on the lungs.
"Our studies continue to show that lung cancer cells grow in response to estrogen and that stopping or slowing the spread of the disease may be dependent on blocking the action of estrogen," said Jill Siegfried, Ph.D., professor, department of pharmacology and co-leader, Lung and Thoracic Malignancies Program, University of Pittsburgh Cancer Institute. "In fact, in previous studies, we have observed that lung tumor cells contain estrogen receptors at levels comparable to breast cancer cells." A receptor is a structure on the surface of a cell that selectively receives and binds substances.
Clare Collins | EurekAlert!
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