deCODE Breakthrough in Thyroid Cancer May Enable More Targeted Risk Assessment and Earlier Intervention
News Feb 09, 2009
Scientists at deCODE genetics present the discovery of two single letter variations in the sequence of the human genome (SNPs) conferring substantial increased risk of thyroid cancer.
The two SNPs, located on chromosomes 9q22 and 14q13, are the first common variants replicated in multiple populations ever associated with increased risk of the disease. They were found through the analysis of the genomes of a total of more than 40,000 patients and control subjects from Iceland, the United States and Spain.
Approximately 4 percent of people of European descent carry two copies of the at-risk versions of both SNPs, putting them at a 5.7-times greater risk of thyroid cancer than individuals who carry no copies of either. These variants contribute to an estimated 57 percent of all cases of the disease, and they associate with altered levels of key thyroid hormones.
“This is an important discovery with a clear medical utility. Thyroid cancer is the most common endocrine cancer, and about 1 percent of the general population will develop it at some point in their lifetime. But if detected early enough it is in general a treatable disease. Screening for the at-risk SNPs may therefore provide a new means of identifying those who are at highest risk, enabling closer monitoring of those individuals with an emphasis on addressing other risk factors and promoting early intervention if cancer is detected. We are already including these risk variants in our deCODEme full genome scan and deCODEme Cancer scan, and are analyzing the possibility of putting them into a reference laboratory diagnostic test,” said Kari Stefansson, CEO of deCODE and senior author on the study.
Antiviral Gene Vanquishes ZikaNews
It’s been known for years that humans and other mammals possess an antiviral gene called RSAD2 that prevents a remarkable range of viruses from multiplying. Now, researchers at Albert Einstein College of Medicine, part of Montefiore, have discovered the secret to the gene’s success: The enzyme it codes for generates a compound that stops viruses from replicating. The newly discovered compound, described in today’s online edition of Nature, offers a novel approach for attacking many disease-causing viruses.
Research Team Discovers Compound that Stops Cancer From SpreadingNews
Using a mouse model, OHSU physician-scientists lead effort to hone a drug that inhibits cancer cells from spreading to other areas in the body.READ MORE
Mechanism Controlling Multiple Sclerosis Risk IdentifiedNews
Researchers at Karolinska Institutet have now discovered a new mechanism of a major risk gene for multiple sclerosis (MS) that triggers disease through so-called epigenetic regulation. They also found a protective genetic variant that reduces the risk for MS through the same mechanism.