Armed virus shows promise as treatment for pancreatic cancer

The study, funded by the UK charity Pancreatic Cancer Research Fund, investigated whether the effectiveness of the Vaccinia oncolytic virus — a virus modified to selectively infect and kill cancer cells — as a treatment for pancreatic cancer, would be improved by arming it with a gene which modulates the body’s immune system. Despite laboratory studies which show that they can both kill cancer cells and provide immunity against cancer regrowth, oncolytic viruses have not performed well in clinical trials, as the immune system naturally attacks the virus before it can be effective…

Mechanics of cells’ long-range communication modeled by researchers

By developing mathematical models of how the collagen matrix that connects cells in tissue stiffens, the researchers are providing insights into the pathology of fibrosis, cirrhosis of the liver and certain cancers. Tissue stiffness has long been know to be clinically relevant in these diseases, but the underlying changes that alter the mechanics of tissues are poorly understood…

Whole-genome sequencing can successfully identify cancer-related mutations — ScienceDaily

This is the first study that has used whole-genome sequencing to evaluate a series of 258 cancer patients’ genomes to improve the ability to diagnose cancer-predisposing mutations. The study is published online in the journal EBioMedicine. “Whole-genome sequencing is a new genetic tool that can determine more of a person’s DNA sequence than ever before. Our results show that nearly 90 percent of clinically identified mutations were confidently detected and additional cancer gene mutations were discovered, which together with the decreasing costs associated with whole-genome sequencing means that this method will improve patient care, as well as lead to discovery of new cancer genes,” said Dr…

Bone loss drugs may help prevent endometrial cancer

Endometrial cancer, which arises in the lining of the uterus, accounts for nearly 50 percent of gynecologic cancers diagnosed in the United States, and it is the fourth most common malignancy in women and the eighth most common cause of cancer death. …

Lung Cancer: New Genetic Anomalies Discovered

By analyzing the DNA and RNA of lung cancers, researchers at the University of Michigan Comprehensive Cancer Center found that patients whose tumors contained a large number of gene fusions had worse outcomes than patients with fewer gene fusions. Gene fusions are a type of genetic anomaly found in cancers that occurs when genes get rearranged and fuse together. In addition, the researchers identified several new genetic anomalies that occur in lung cancer, including in patients with a history of smoking. …

Light-emitting e-readers before bedtime can adversely impact sleep

“We found the body’s natural circadian rhythms were interrupted by the short-wavelength enriched light, otherwise known as blue light, from these electronic devices,” said Anne-Marie Chang, PhD, corresponding author, and associate neuroscientist in BWH’s Division of Sleep and Circadian Disorders. “Participants reading an LE-eBook took longer to fall asleep and had reduced evening sleepiness, reduced melatonin secretion, later timing of their circadian clock and reduced next-morning alertness than when reading a printed book.” Previous research has shown that blue light suppresses melatonin, impacts the circadian clock and increase alertness, but little was known about the effects of this popular technology on sleep. The use of light emitting devices immediately before bedtime is a concern because of the extremely powerful effect that light has on the body’s natural sleep/wake pattern, and may thereby play a role in perpetuating sleep deficiency…

Vaccine therapy for prostate cancer patients with rising PSA examined — ScienceDaily

As part of a Phase II clinical trial, adult patients with advanced prostate cancer (as evidenced by two rising prostate-specific antigen or PSA values and no visible metastasis) whose cancer is resistant to hormone therapy and had either surgery or radiation were recruited from member institutions in the ECOG-ACRIN Cancer Research Group. In their work, published in the current online edition of European Urology, ECOG-ACRIN investigators examined two different experimental treatment options. In step one, patients were treated with PROSTVAC-V/TRICOM and PROSTVAC-F/TRICOM. PROSTVAC-V is derived from a vaccinia virus that was used for many years to vaccinate against smallpox. …