Daily non-political popular news in brief.

Study proposes new theory of how viruses may contribute to cancer

10-23-2007 · EurekAlert!

A study published in the Oct. 24 issue of PLoS ONE suggests that viruses may contribute to cancer by causing excessive death to normal cells while promoting the growth of surviving cells with cancerous traits. The University of Pittsburgh Cancer Institute researchers suggest that viruses may act as forces of natural selection by wiping out normal cells that support the replication of viruses, leaving behind those cells that have acquired defects in their circuitry.

Keywords: study, proposes, theory, viruses, contribute, cancer, propose, viruse

« Previous | Next »

Similar news on "Study proposes new theory of how viruses may contribute to cancer":

Stem cells may look malignant, not act it
05-23-2007 · EurekAlert!
Bone marrow stem cells attracted to the site of a cancerous growth frequently take on the outward appearance of the malignant cells around them. But whether they contribute to cancer, as some scientists suspect, is not entirely clear. The findings contest the increasingly popular theory that bone marrow stem cells seed cancer. Instead, these cells might simply look like cancer, not act like it.
Similar news · Read more »
Gender impacts colorectal cancer progression
06-04-2007 · EurekAlert!
Physiological differences between men and women may contribute to differential tumor development and progression in colon cancer patients, a study led by researchers at the University of Southern California (USC) suggests.
Similar news · Read more »
International study points to new breast cancer-susceptibility gene
02-08-2007 · EurekAlert!
A gene whose existence was detected only a couple of years ago may increase women's risk of breast cancer when inherited in a mutated form, and may contribute to prostate cancer as well, researchers at Dana-Farber Cancer Institute and colleagues in Finland report in a new study.
Similar news · Read more »
Mouse mammary tumor virus can replicate in human cells
10-10-2007 · EurekAlert!
Mouse mammary tumor virus -- which causes mammary cancer in mice -- can replicate and spread in human cells, research published this week shows. The study, published in the online open access journal Retrovirology, adds weight to the theory that MMTV might be involved in causing human breast cancer.
Similar news · Read more »
Competition, loss of selfishness mark shift to supersociety
06-08-2007 · EurekAlert!
How social or altruistic behavior evolved has been a central and hotly debated question, particularly by those researchers engaged in the study of social insect societies -- ants, bees and wasps. Researchers, including professor Bert Hölldobler of ASU's School of Life Sciences and the Center for Social Dynamics and Complexity, propose a model, based on tug-of-war theory, that may explain the selection pressures that mark the evolutionary transition from primitive society to superorganism.
Similar news · Read more »
Health-care delivery contributes to racial disparity in colorectal cancer
12-21-2006 · EurekAlert!
A study reveals that differences in utilization of screening tests and surgical treatment may contribute to poorer colorectal cancer survival rates in African-Americans.
Similar news · Read more »
Bone marrow microenvironment can contribute to blood cell disorder
06-14-2007 · EurekAlert!
Disorders of blood cells may begin in the biological environment where the cells develop, not just with the cells themselves, according to a study from researchers at the Massachusetts General Hospital and the Peter MacCallum Cancer Center in Melbourne, Australia.
Similar news · Read more »
Blood-vessel blocker aids cancer-killing virus
11-27-2007 · EurekAlert!
Cancer-killing viruses are a promising therapy for incurable brain tumors, but their effectiveness has been limited in part because immune cells rapidly eliminate them. That immune response might be slowed, and the virus given more time to kill cancer cells, by blocking the growth of blood vessels in the tumor, new Ohio State research suggests. The study indicates that pretreatment with a drug that blocks blood-vessel growth might improve the effectiveness of cancer-killing viruses.
Similar news · Read more »
Racial disparity in breast cancer outcome linked to aggressive tumors
10-23-2006 · EurekAlert!
Malignancies of the breast can be more aggressive and associated with poorer outcome in African-Americans than other races, according to a new study. The study reviewed patient data from two different clinical trial protocols -- to control for healthcare access biases -- and found that African-Americans have tumors with poorer prognostic cellular characteristics and more aggressive clinical presentations, pointing to the possibility that racially influenced tumor biology may contribute to observed racial disparities in breast cancer outcome.
Similar news · Read more »
Notorious cancer gene may work by destroying messenger
03-19-2007 · EurekAlert!
A new study suggests how a notorious cancer gene may contribute to tumor growth. The insight emerged from a long-running study of a protein called PMR1, the key player in an unusual mechanism that cells use to quickly stop production of certain important proteins.
Similar news · Read more »