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TGen researchers map potential genetic origins, pathways of lung cancer in nonsmokers
Date:1/9/2012

SAN DIEGO -- Researchers at the Translational Genomics Research Institute (TGen) have begun to identify mutations and cellular pathway changes that lead to lung cancer in never-smokers a first step in developing potential therapeutic targets.

"This is the starting point. We certainly have a lot of pathways and gene expression alterations that we're going to be very interested in confirming and looking at in larger cohorts of patients," said Dr. Timothy G. Whitsett, Senior Postdoctoral Fellow in TGen's Cancer and Cell Biology Division.

Whitsett presented the findings today at the American Association for Cancer Research (AACR) and International Association for the Study of Lung Cancer (IASLC) Joint Conference on Molecular Origins of Lung Cancer: Biology, Therapy and Personalized Medicine, held Jan. 8-11, 2012, at the San Diego Marriott Marina & Hotel.

"This is a very important subset of patients with lung cancer, and our research looks to identify pathways and genes that are potentially driving this cancer," said Dr. Whitsett, who works under Dr. Nhan Tran, head of TGen's CNS Tumor Research Lab. The title of the abstract Dr. Whitsett presented is Identification of key tumorigenic pathways in never-smoker lung adenocarcinoma patients using massively parallel DNA and RNA sequencing.

Never-smokers are defined for this study as individuals who smoked less than 100 cigarettes in their lifetime. About 10 percent of lung cancer cases occur in this patient population, which researchers have not examined as extensively as they have studied patients with lung cancer who smoked.

Whitsett and his colleagues looked at three female patients with adenocarcinoma: one never-smoker with early-stage disease; one never-smoker with late-stage disease; and, as a comparison, one smoker with early-stage disease. The team performed whole genome sequencing (WGS) and whole transcriptome sequencing (WTS) on each patient to identify gene mutatio
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Contact: Steve Yozwiak
syozwiak@tgen.org
602-343-8704
The Translational Genomics Research Institute
Source:Eurekalert

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