Tag Archives: research

The ‘dirty’ side of soap: Triclosan, a common antimicrobial in personal hygiene products, causes liver fibrosis and cancer in mice

“Triclosan’s increasing detection in environmental samples and its increasingly broad use in consumer products may overcome its moderate benefit and present a very real risk of liver toxicity for people, as it does in mice, particularly when combined with other compounds with similar action,” said Robert H. Tukey, PhD, professor in the departments of Chemistry and Biochemistry and Pharmacology. Tukey led the study, together with Bruce D…

Scientists uncover vast numbers of DNA ‘blind spots’ that may hide cancer-causing mistakes

The researchers found hidden faults in areas that are tricky for gene-reading technology to decode. This technique, which unravels cancer’s genetic blueprint, is an important part of the research that scientists carry out to understand more about cancer’s biology. By finding new ways to unlock these blind spots in the future, the researchers hope this will help us understand these mistakes and whether they lead to cancer. This could be a step towards developing tests to spot cancers earlier or provide new tactics for discovering future cancer treatments…

Cutting-edge computer software helps pinpoint aggressiveness of breast cancer tumors

Their findings are published today in the journal, Nature Scientific Reports. “We are using a unique software program in our lab that looks at a type of mutation called a splicing mutation that is typically overlooked using current methods,” said lead author on the study, Stephanie Dorman, a PhD student in the department of biochemistry at Western University’s Schulich School of Medicine & Dentistry. She said that where previous genetic studies of 445 tumours detected 429 of these splicing mutations, the Western-developed analysis software was able to find more than 5000. Using this software and human tumour tissue sample genetic data from The Cancer Genome Atlas, the research team pinpointed that mutations in the Neural Cell Adhesion Molecule (NCAM) and other related genes in NCAM biology were present at a much higher rate in tumours which had metastasized to the lymph nodes than those that did not…

New imaging technique identifies receptors for targeted cancer therapy

“Protein overexpression is a hallmark of certain cancers and is used in clinical oncology to personalize treatment through tumor detection, molecular therapies, and therapeutic monitoring,” said lead author Kimberley S. Samkoe, assistant professor of Surgery at the Geisel School of Medicine and adjunct assistant professor at Thayer School of Engineering. “Protein expression is currently measured through a total protein analysis of tumor tissue. This new technique allows us to accurately determine the amount of protein receptors available for binding a drug without invasive biopsy.” The researchers developed a dual-tracer in vivo receptor concentration imaging (RCI) technique that involves the simultaneous injection of both a targeted and a non-targeted imaging agent. …

Molecular breakthrough could halt spread of prostate cancer — ScienceDaily

Pioneering research, by academics at the Universities of Bristol, Nottingham and the University of the West of England (UWE Bristol), shows that a specific compound can inhibit the activity of a molecule which is key to how tumours form new blood vessels. The vessels are essential for the cancer cells to survive and multiply. The findings, published in the journal Oncogene, show that targeting a molecule called SRPK1 could stop progression of prostate cancer…

Scoring scheme predicts ability of cancer cells to spread to other parts of body

Led by Professor Jean Paul Thiery, Senior Principal Investigator, and Dr Ruby Huang, Principal Associate, both from CSI Singapore, the scientists developed a scoring scheme which monitors the epithelial-mesenchymal transition (EMT) mechanism. This process was shown to play a role in a large number of cancer-related events, including cancer invasion, metastasis, and chemo-resistance…

Common chemotherapeutic agent reduces resistance to virus therapy in brain tumor patients

Preclinical studies of oncolytic virus therapy in malignant glioma are promising; however, a potential problem with this approach is that the body’s own immune system can recognize the virus and clear the infection, resulting in reduced therapeutic effects. For this study, researchers used a mouse model with an intact immune system to mimic what would occur in humans to determine how the immune system clears the oncolytic virus. They found that the area surrounding malignant gliomas has a high number of immune cells called microglial cells and macrophages…