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Triclosan Spurs Growth of Breast Cancer Cells

April 23, 2014 1:01 pm | News | Comments

Some manufacturers are turning away from using triclosan as an antimicrobial ingredient in soaps, toothpastes and other products over health concerns. Now, scientists are reporting new evidence that appears to support these worries.     

MRI Sensor Tracks Oxygen in the Body

April 23, 2014 12:49 pm | News | Comments

Measuring tumors’ oxygen levels could help doctors make decisions about treatments, but there’s currently no reliable, noninvasive way to make such measurements. However, a new an injectable device that reveals oxygen levels over several weeks could change that.

Enzymes Can Help Fix Cancer-causing DNA Defects

April 23, 2014 12:40 pm | News | Comments

Researchers have identified an important enzyme pathway that helps prevent new cells from receiving too many or too few chromosomes, a condition that has been directly linked to cancer and other diseases.             

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Cancer Spread’s ‘Family Tree’

April 23, 2014 12:34 pm | News | Comments

The process of metastasis is still poorly understood. Now, a research team has developed a simple test that can reveal the evolutionary relationships among various tumor sites within a patient, information that may someday help with treatment planning.

Killing Cancer on the Run

April 22, 2014 3:30 pm | by Skip Derra | Articles | Comments

A dream solution to cancer metastasis has been to develop a method that can track and kill the cancer cells that are on the move. The complexity at which those cancer cells operate has long been a formidable obstacle to stopping metastases, which cause 90 percent of cancer deaths, but that may change. 

Fast Way to Measure DNA Repair

April 22, 2014 2:57 pm | News | Comments

A team of researchers has developed a test that can rapidly assess several DNA repair systems, which could help determine individuals’ risk of developing cancer and help doctors predict how a given patient will respond to chemotherapy drugs.   

Cancer Stem Cells Linked to Drug Resistance

April 21, 2014 2:25 pm | News | Comments

Most drugs used to treat lung, breast and pancreatic cancers also promote drug-resistance and ultimately spur tumor growth. Researchers have discovered a biomarker called CD61 that appears responsible for inducing tumor metastasis by enhancing the stem cell-like properties of cancer cells.

Scientists ID Source of Most Bladder Cancer Cases

April 21, 2014 2:15 pm | News | Comments

A single type of cell in the lining of the bladder is responsible for most cases of invasive bladder cancer, according to researchers. This study is the first to pinpoint the normal cell type that can give rise to invasive bladder cancers.   

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Down Syndrome, Leukemia Link Uncovered

April 21, 2014 11:48 am | News | Comments

Although doctors have long known that people with Down syndrome have a heightened risk of developing acute lymphoblastic leukemia (ALL) during childhood, they haven’t been able to explain why. Now, a team investigators has uncovered a connection between the two conditions.

Chronic Inflammation May Be Linked to Aggressive Prostate Cancer

April 18, 2014 12:11 pm | News | Comments

The presence of chronic inflammation in benign prostate tissue was associated with high-grade, or aggressive, prostate cancer, and this association was found even in those with low prostate-specific antigen (PSA) levels, according to a new study.

Lost Stem Cells Naturally Replaced by Non-stem Cells

April 18, 2014 11:58 am | News | Comments

Researchers have discovered an unexpected phenomenon in the organs that produce sperm in fruit flies: when a certain kind of stem cell is killed off experimentally, another group of non-stem cells can come out of retirement to replace them.   

Small Molecules Making Big News in Cancer Treatment

April 17, 2014 2:24 pm | by Neil Canavan | Articles | Comments

Size doesn’t matter as long as long as you can get the job done. That said, one may be forgiven the impression that larger molecules—antibodies and related constructs, or T cells themselves being used in immunotherapies—were preferentially presented at American Association of Cancer Research annual conference

Some Immune Cells Defend Only One Organ

April 17, 2014 1:52 pm | News | Comments

Scientists have uncovered a new way the immune system may fight cancers and viral infections. The finding could aid efforts to use immune cells to treat illness. The research, in mice, suggests that some organs have the immunological equivalent of “neighborhood police” – specialized squads of defenders that patrol only one area, a single organ, instead of an entire city, the body.

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Immunotherapies Rock the House

April 16, 2014 2:05 pm | by Neil Canavan | Articles | Comments

The potential of immunotherapies drew large interest at this year's American Association for Cancer Research annual meeting. And the new data are particularly striking for their clinical results—reporting once uncommon at this basic research meeting.

DNA Looping Damage Tied to HPV Cancer

April 16, 2014 1:26 pm | News | Comments

It’s long been known that certain strains of human papillomavirus (HPV) cause cancer. Now, researchers have determined a new way that HPV might spark cancer development– by disrupting the human DNA sequence with repeating loops when the virus is inserted into host-cell DNA as it replicates.

Targeting Cancer with a Triple Threat

April 15, 2014 11:55 am | News | Comments

Delivering chemotherapy drugs in nanoparticle form could help reduce side effects by targeting the drugs directly to the tumors. In recent years, scientists have developed nanoparticles that deliver one or two chemotherapy drugs, but it has been difficult to design particles that can carry any more than that in a precise ratio. Now chemists have devised a new way to build such nanoparticles.

Gene Panel Effectively Screens Dozens of Genes for Cancer-associated Mutations

April 15, 2014 11:45 am | News | Comments

As many as 10 percent of women with a personal or family history of breast or ovarian cancer have at least one genetic mutation that, if known, would prompt their doctors to recommend changes in their care, according to a new study by researchers at the Stanford University School of Medicine.

Drawing a Ring Around Antiviral Immunity

April 15, 2014 11:37 am | News | Comments

If you follow cancer biology, then you’ve probably heard of ubiquitin before. In a recent paper researchers provided a structural rationale for how ubiquitin helps RIG-I do its job— and how that might help keep the immune system from getting out of hand.

MicroRNA Could be Key Target for Bowel Cancer Treatment

April 14, 2014 2:42 pm | News | Comments

A tiny genetic molecule known as a microRNA plays a central role in bowel cancer and could be key to developing new treatments for the disease, a new study concludes. Scientists found that the molecule, called microRNA 135b, is a vital ‘worker’ employed by several important cancer genes to drive the growth of bowel cancers.

Virus-fighting Genes Linked to Mutations in Cancer

April 14, 2014 2:15 pm | News | Comments

Researchers have found a major piece of genetic evidence that confirms the role of a group of virus-fighting genes in cancer development. The APOBEC family of genes control enzymes that are believed to have evolved in humans to fight off viral infections. Scientists have speculated that these enzymes are responsible for a very distinct signature of mutations that is present in approximately half of all cancer types.

Tumor-suppressor Connects with Histone Protein to Hinder Gene Expression

April 11, 2014 1:06 pm | News | Comments

A tumor-suppressing protein acts as a dimmer switch to dial down gene expression.  It does this by reading a chemical message attached to another protein that’s tightly intertwined with DNA, a team led by scientists at The University of Texas MD Anderson Cancer Center reports. The findings provide evidence in support of the “histone code" hypothesis.

Identified Epigenetic Factors Associated with an Increased Risk of Developing Cancer

April 10, 2014 1:51 pm | News | Comments

In the last decade, hundreds of studies have been conducted looking for polymorphisms associated with a greater propensity to suffer some of the most frequent human tumors. These tests, called GWAS, have found a common problem: many times the tiny genetic change observed appears to have no activity or function to explain because it is associated with more cancer.

Blocking DNA Repair Mechanisms Could Improve Radiation Therapy for Brain Cancer

April 9, 2014 2:38 pm | News | Comments

UT Southwestern Medical Center researchers have demonstrated in both cancer cell lines and in mice that blocking critical DNA repair mechanisms could improve the effectiveness of radiation therapy for highly fatal brain tumors called glioblastomas.

Potential Link Between Brain Development and Breast Cancer Gene

April 9, 2014 2:09 pm | Videos | Comments

Scientists at the Salk Institute have uncovered details into a surprising—and crucial—link between brain development and a gene whose mutation is tied to breast and ovarian cancer. Aside from better understanding neurological damage associated in a small percentage of people susceptible to breast cancers, the new work also helps to better understand the evolution of the brain.

Deep, Integrated Genomic Analysis Re-classifies Lower-grade Brain Tumors

April 9, 2014 2:03 pm | News | Comments

Comprehensive genomic analysis of low-grade brain tumors sorts them into three categories, one of which has the molecular hallmarks and shortened survival of glioblastoma multiforme, the most lethal of brain tumors, researchers reported at the American Association for Cancer Research Annual Meeting 2014.

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