City of Hope study demonstrates proof of concept for targeted new approach to treat pancreatic cancer
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Updates every hour. Last Updated: 14-May-2025 23:10 ET (15-May-2025 03:10 GMT/UTC)
Researchers at City of Hope have identified a new molecular target for treating pancreatic cancer, reports a Gastroenterology study published today. Led by Mustafa Raoof, M.D., M.S., City of Hope assistant professor of surgery, cancer genetics and epigenetics, scientists focused on transcription-replication conflicts (TRCs), which occur when the mechanisms responsible for gene expression and genome duplication collide. The clash disrupts cells’ ability to read and copy genes, leading to replication stress, a frequent phenomenon in pancreatic cancer. The added stress causes cells to make errors copying their DNA, enabling cancer to gain a foothold and spread. Overall, the experimental approach was most effective at killing cancer cells with high replication stress, a common phenomenon that occurs when the KRAS gene goes awry.
When faced with a potential threat, mice often freeze in place. Moreover, when two animals are together, they typically freeze at the same time, matching each other’s periods of immobility. In a new study, researchers found that coordination during fear looks different in males and females.
A team of researchers from the Rice Biotech Launch Pad at Rice University has developed an implantable “cytokine factory” that safely triggers potent immune responses against hard-to-treat cancers, including metastatic melanoma, pancreatic and colorectal tumors.
(Philadelphia, PA) – Calcium transport into and out of mitochondria – the powerhouses of cells – is central to cellular energy production and cell death. To maintain the balance of calcium within these powerhouses, cells rely on a protein known as the mitochondrial sodium-calcium exchanger, or NCLX. Now, in new research, scientists at the Lewis Katz School of Medicine at Temple University have discovered a novel regulator of NCLX activity, a protein called TMEM65, which helps move calcium out of mitochondria, protecting against harmful calcium overload.
The discovery, described online April 8 in the journal Nature Metabolism, is the first to characterize the interaction of TMEM65 with NCLX in mitochondria. “TMEM65 is the first protein identified that is a bona fide interactor and regulator of NCLX,” explained John W. Elrod, PhD, W.W. Smith Chair in Cardiovascular Medicine and Founding Director of the Aging + Cardiovascular Discovery Center at the Lewis Katz School of Medicine and senior investigator on the new study. The discovery could help scientists design new therapeutic agents to combat calcium overload of mitochondria in conditions such as heart failure and Alzheimer’s disease.
Numerous studies have shown that working the night shift is associated with serious health risks, including to the heart. However, a new study from Mass General Brigham suggests that eating only during the daytime could help people avoid the health risks associated with shift work. Results are published in Nature Communications.