Tag Archives: human

Editing HPV’s genes to kill cervical cancer cells

Using the genome editing tool known as CRISPR, the Duke University researchers were able to selectively destroy two viral genes responsible for the growth and survival of cervical carcinoma cells, causing the cancer cells to self-destruct. The findings, appearing online August 7 in the Journal of Virology, give credence to an approach only recently attempted in mammalian cells, and could pave the way toward antiviral strategies targeted against other DNA-based viruses like hepatitis B and herpes simplex. “Because this approach is only going after viral genes, there should be no off-target effects on normal cells,” said Bryan R. …

Study shines new light on genetic alterations of aggressive breast cancer subtype

The study, led by Dr. Xiaosong Wang, assistant professor of medicine — hematology and oncology and of molecular and cellular biology at Baylor, published today in Nature Communications and focused on the more aggressive molecular subtype of the estrogen-receptor positive breast cancer known as luminal B breast cancer. “While expressing the estrogen receptor, the luminal B breast cancers usually have higher tumor grade, larger tumor size, and poor prognosis, with most cases difficult to treat by endocrine therapy,” said Wang, the lead and corresponding author on the report. “We wanted to gain a deeper understanding about the genetic alterations underlying this particular form of breast cancer, because we do not know about what malfunctions potentially cause this form to be more aggressive.” In the study, Wang and colleagues identified a particular gene fusion on the estrogen receptor itself (hybrid gene formed from two previously separate genes) that was preferentially present in a subset of samples of tumors that were luminal B and ER-positive. …

Why we should vaccinate boys against HPV as well as girls

Gillian Prue, from the School of Nursing and Midwifery at Queen’s University of Belfast, says that the human papillomavirus (HPV) infection is common in men and can lead to genital warts and the development of some head and neck, anal or penile cancers. She says incidence of this has increased in the past two decades with HPV causing 5% of all human cancers. …

Cancer: Treatment that prevents tumor metastasis identified in animal study

The work by Professor Pierre Sonveaux’s team, at Université catholique de Louvain’s Institute of Experimental and Clinical Research (IREC), succeeded in pinpointing a family of pharmaceutical compounds whose action prevents the appearance of tumor metastasis. The researchers achieved this tour de force by studying the mitochondria in tumor cells. These organelles are considered as the cells’ power station…