Advances in lung cancer research announced at conferenceAugust 10, 2009Dr. Glen Weiss of the Translational Genomics Research Institute (TGen) and Scottsdale Healthcare this week announced two significant advances in treating lung cancer at an international cancer research conference. Dr. Weiss, M.D., an Associate Investigator in TGen's Cancer and Cell Biology Division and Director of Thoracic Oncology at TGen Clinical Research Services at Scottsdale Healthcare, made both announcements at the 13th World Conference on Lung Cancer in San Francisco. In one presentation, Dr. Weiss described research that eventually could help prevent lung cancer from spreading to the brain. In non-small cell lung cancer (NSCLC), brain metastasis is a devastating complication that occurs in as many as 1 in 4 patients. The ability to identify those at risk for developing brain metastasis may guide new therapies. A team led by Dr. Weiss found several microRNAs, which are single-stranded RNA molecules that regulate how genes control cellular development - as well as several high-tech imaging characteristics - all associated with the spread of lung cancer to the brain. The biological significance of these microRNAs are being explored, and more studies are warranted, according to the team, which was funded by the Ibis Foundation of Arizona, the TGen Foundation and the Scottsdale Healthcare Foundation. "With additional validation, this work can lead to better techniques to predict, treat and ultimately prevent brain metastasis in patients with non-small cell lung cancer," Dr. Weiss said. "Identifying the highest-risk population for brain metastasis, so that informed therapeutic trials can be undertaken, could enable a paradigmatic shift in treating these patients." The study team included researchers from: TGen; the Virginia G. Piper Cancer Center at Scottsdale Healthcare's Scottsdale Clinical Research Institute; Scottsdale Medical Imaging LTD; and the School of Computing, Informatics and Decision Systems Engineering at Arizona State University's Ira A. Fulton School of Engineering. In another presentation, Dr. Weiss discussed the release this week by Threshold Pharmaceuticals Inc. and the Virginia G. Piper Cancer Center at Scottsdale Healthcare of results from two Phase I clinical trials for a drug called TH-302. The two clinical trials are both evaluating the safety and effectiveness of TH-302, a drug activated in the absence of oxygen. Both clinical trials involve patients with advanced solid tumors. In one, they are treated with TH-302 in combination with other chemotherapy agents. In the other, they are treated only with TH-302, which is produced by Threshold Pharmaceuticals of Redwood City, Calif. In the study of those treated only with TH-302, six of eight, or 75 percent, of patients with small cell lung cancer (SCLC) "achieved stable disease or better." In the study of those treated with TH-302 in combination with other chemotherapy agents, eight of 12, or 67 percent, of patients with NSCLC "achieved stable disease or better," according to a release by Threshold and Scottsdale Healthcare. More details about the trials are available at www.shc.org/content.asp?lnavid=39. "TH-302 is a new, novel, small molecule that is activated when cells are under conditions that lack oxygen, which is a metabolic condition characteristic of cancer cells," Dr. Weiss said. "We are excited to continue investigations with TH-302 and about the potential benefit that it might confer to people living with lung cancer." Translational Genomics Research Institute (TGen) |
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| Related Lung Cancer Current Events and Lung Cancer News Articles New figures on cancer in Europe show a steady decline in mortality but big variations New figures on deaths from cancer in Europe show a steady decline in mortality between the periods 1990-1994 and 2000-2004. Deaths from all cancers in the European Union (EU) between these two periods fell by nine percent in men and eight percent in women, with a large drop among the middle-aged population. Health Physics Society recommends considering action for indoor radon below current guidelines Radon is a colorless and odorless radioactive gas that is produced by the radioactive decay of radium. Radium is a product of uranium decay and is found in trace amounts naturally in nearly all rocks, soils, and groundwater as well as building materials, plants, animals, and the human body. Researchers Identify Role of Gene in Tumor Development, Growth and Progression Virginia Commonwealth University Massey Cancer Center and VCU Institute of Molecular Medicine researchers have identified a gene that may play a pivotal role in two processes that are essential for tumor development, growth and progression to metastasis. Common pain relief medication may encourage cancer growth Although morphine has been the gold-standard treatment for postoperative and chronic cancer pain for two centuries, a growing body of evidence is showing that opiate-based painkillers can stimulate the growth and spread of cancer cells. Study raises concerns about outdoor second-hand smoke Indoor smoking bans have forced smokers at bars and restaurants onto outdoor patios, but a new University of Georgia study in collaboration with the Centers for Disease Control and Prevention suggests that these outdoor smoking areas might be creating a new health hazard. Carnegie Mellon researchers link health-care debate to risk of dying in US and Europe The current health care debate in the United States is complicated. Trade-offs between heath care expenditures, lifestyle choices and life expectancy have been suggested but seldom clearly demonstrated. PET imaging response a prognostic factor after thoracic radiation therapy for lung cancer A rapid decline in metabolic activity on a PET scan after radiation therapy for non-small cell lung cancer is correlated with good local tumor control, according to a study presented by researchers at Thomas Jefferson University Hospital at the 51st ASTRO Annual Meeting. Study of concurrent radiotherapy, chemotherapy shows promise in small cell lung cancer Treating limited stage small cell lung cancer(LSCL) with a combination of accelerated high-dose radiotherapy and chemotherapy has shown encouraging results. Stereotactic radiotherapy offers noninvasive, effective treatment for frail patients with early-stage lung cancer Stereotactic body radiation therapy (SBRT) should be considered a new standard of care for early-stage lung cancer treatment in patients with co-existing medical problems, according to results from a national clinical trial led by UT Southwestern Medical Center physicians. Preventative brain radiation for lung cancer patients: Benefits and risks A new study is taking a closer look at the benefits versus risks for lung cancer patients to undergo preventative brain radiation therapy as a means to stop cancer from spreading to the brain. More Lung Cancer Current Events and Lung Cancer News Articles |
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