Lung Cancer Treatment (image) Salk Institute Share Print E-Mail Caption A mutation of the KRAS gene leads to a common and hard-to-treat lung cancer. A new combination therapy (lipophilic bisphosphonate and rapamycin) administered to mice for 40 days resulted in shrunken tumor size (right). Credit Salk Institute Usage Restrictions with credit Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.