Promising advance in breast cancer researchNovember 15, 2005Two new drugs, when combined, killed up to 75 percent of breast cancer tumor cells in mice and suppressed the regrowth of tumors, according to researchers at the Virginia Commonwealth University Massey Cancer Center. The findings, published online Nov. 14 in the journal Cancer Biology and Therapy, may also have implications for prostate cancer, lymphoma, myeloma and other hematologic cancers. Paul Dent, Ph.D., associate professor of biochemistry and radiation oncology, led the team. This new study translates its 2002 research that showed early success in the lab and more recently was tested in animals. In this new study, researchers combined two novel drugs, UCN-01 and a MEK 1/2 inhibitor, which are known to inhibit protein kinases, part of tumor survival signaling pathways. "In addition to potently inhibiting cells and suppressing tumor growth, these drugs are also part of a modern class of drugs that are less toxic to non-cancerous cells," said Dent. "We are eager to move these exciting findings from the labs to patients." When studied separately, the drugs only killed a small percent of the cells to which they were exposed. Combined, however, the result was quite startling. "Within five days, we saw profound tumor cell death," Dent said. "Three researchers in the group operated the same studies independently, and they all saw very similar results." Virginia Commonwealth University |
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| Related Breast Cancer Research Current Events and Breast Cancer Research News Articles Weight Training Boosts Breast Cancer Survivors' Body Image and Satisfaction with Intimate Relationships, Penn Study Shows In addition to building muscle, weightlifting is also a prescription for self-esteem among breast cancer survivors, according to new University of Pennsylvania School of Medicine research. Early-stage, HER2-positive breast cancer patients at increased risk of recurrence Early-stage breast cancer patients with HER2 positive tumors one centimeter or smaller are at significant risk of recurrence of their disease, compared to those with early-stage disease who do not express the aggressive protein, according to a study led by researchers at The University of Texas M. D. Anderson Cancer Center. Stem cell 'daughters' lead to breast cancer Walter and Eliza Hall Institute scientists have found that a population of breast cells called luminal progenitor cells are likely to be responsible for breast cancers that develop in women carrying mutations in the gene BRCA1. RNA snippet suppresses spread of aggressive breast cancer A low cellular level of a tiny fragment of RNA appears to increase the spread of breast cancer in mouse models of the disease, according to researchers at Whitehead Institute for Biomedical Research. NYU Langone Medical Center researchers identify key gene in deadly inflammatory breast cancer Aggressive, deadly and often misdiagnosed, inflammatory breast cancer (IBC) is the most lethal form of primary breast cancer, often striking women in their prime and causing death within 18 to 24 months. Breast cancer etiology may vary by subtype Women's reproductive and lifestyle characteristics can be linked to different invasive breast cancer subtypes. Data on 2544 breast cancer cases, presented in the open access journal Breast Cancer Research, suggests that traditional risk factors for development of the condition are associated with different kinds of tumor. Scientists discover how to improve immune response to cancer at Princess Margaret Hospital A team of scientists at The Campbell Family Institute for Breast Cancer Research (CFIBCR) at Princess Margaret Hospital and international collaborators have discovered how to trigger an improved immune response to cancer that could be included in new clinical trials that use a patient's own cells to destroy tumours. Large study documents how p53 mutations link to high-grade breast cancer, poor outcomes In what is believed to be the largest study of its kind in the US, researchers have found that almost 26 percent of women studied who have breast cancer have mutations in a gene important in controlling cell growth and death, and that patients with mutations in this gene -- known as p53 - had poorer outcomes including a significantly increased risk of death from the cancer. High blood pressure linked to earlier death among African-American breast cancer patients A study by researchers at the University of California, San Francisco has shown that hypertension, or high blood pressure, is a predictor of mortality among breast cancer patients, especially those who are African-American, and that hypertension accounts for approximately 30 percent of the survival disparity between African-American and white breast cancer patients. An Individualized Approach to Breast Cancer Treatment Not all breast cancers are the same, and not all will have fatal consequences. But because clinicians find it difficult to accurately determine which tumors will metastasize, many patients do not receive the therapy fits their disease. More Breast Cancer Research Current Events and Breast Cancer Research News Articles |
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