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Study explores how losing the Y chromosome fuels bladder cancer aggressiveness
University of Arizona Cancer Center researchers will study the potential effects of the loss of the Y chromosome in the development and progression of bladder cancer thanks to a grant of up to $6.5 million over seven years from the National Cancer Institute. Dr. Dan Theodorescu, the Nancy C. and Craig M. Berge Endowed Chair for the Director of the Cancer Center, was awarded the NCI Outstanding Investigator Award, which is given to allow "substantial time for funded investigators to take greater risks and be more adventurous in their research," according to the NCI. Theodorescu's goal is to better understand the biology of Y chromosome loss with an eye toward prevention, early detection and treatment approaches for bladder and other cancers. Theodorescu has made pioneering discoveries about the potential effects of the loss of the Y chromosome on the development of cancer, as well as the immune system. He and his team have shown that bladder cancer was more aggressive i...
3D fluorescence microscopy explores the molecular basis of cancer metastasis
As the second leading cause of death globally, cancer is a worldwide health crisis, particularly as life expectancies continue to increase. In its final stages, cancer spreads throughout the body in a process known as metastasis. Here, the cancer cells enter the circulatory system, moving to various distal sites where they cause the formation of new tumors. Metastasis accounts for a vast majority of cancer-related deaths, but the molecular machinery driving this behavior is still poorly understood. The cytoskeleton is a critical component of cancer cell migration and is broadly involved in cell structure and motility. The formation of actin filaments (F-actin), in particular, is a notable driver of cell motility, and the presence of F-actin structures can serve as a biomarker of cell migration. Actin filaments can also be used as an indicator of cell necrosis, as the loss of membrane integrity causes F-actin to become exposed. 3D insights into the behavior of cytoskeletal F-actin...
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