|  Presence of Gene Mutation Tightly Linked to Drug Effectiveness in Lung Cancer
Mutation of a gene involved in non-small cell lung cancer (NSCLC) increases the likelihood that the drug gefitinib (Iressa™) will show a beneficial response, researchers at the Dana-Farber Cancer Institute, the National Cancer Institute (NCI) - part of the National Institutes of Health - and two other institutions announced today in the online version of Science*.
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 Some Men with Low PSAs Have Prostate Cancer
Most Cancers Found Are Not Likely to Be Clinically Significant
Men with low PSA (prostate specific antigen) levels on screening tests can still have prostate cancer, according to a study* released today by scientists from the National Cancer Institute (NCI), part of the National Institutes of Health, and the Southwest Oncology Group, an NCI-funded network of researchers. In this study, prostate cancers were detected by biopsy in men with normal PSA levels.
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