Tag Archives: Breast cancer

Researchers map paths to cancer drug resistance — ScienceDaily

By mapping the specific steps that cells of melanoma, breast cancer and a blood cancer called myelofibrosis use to become resistant to drugs, the researchers now have much better targets for blocking those pathways and keeping current therapies effective. The findings are published in two papers Dec…

Early trial of new drug shows promise for patients with metastatic triple-negative breast cancer — ScienceDaily

The multi-center, non-randomized trial was designed to evaluate the safety, tolerability and antitumor activity of bi-weekly infusions of pembrolizumab (MK-3475, marketed as Keytruda�). The researchers enrolled 27 patients, aged 29 to 72 years, who had metastatic triple-negative breast cancer that either relapsed after treatment for early stage disease or progressed on therapy for advanced disease…

Pathway that degrades holiday turkey fuels metastasis of triple negative breast cancer — ScienceDaily

“I’m not saying that people with metastatic breast cancer shouldn’t eat turkey during the holidays, but triple-negative breast cancer appears to have found a way to process tryptophan more quickly, equipping cancer cells to survive while in circulation, which allows them to metastasize,” says Thomas Rogers, the paper’s first author and PhD candidate in the laboratory of CU Cancer Center investigator, Jennifer Richer, PhD. …

Immune function marker does not predict benefit of trastuzumab in HER-2+ breast cancer patients — ScienceDaily

And since trastuzumab, and not chemotherapy alone, is the standard of care for the HER2-positive sub-class of breast cancer, there is no need to test for these lymphocytes in HER2-positive patients in order to predict outcome, say researchers from Mayo Clinic in Florida. These findings, presented at the 2014 San Antonio Breast Cancer Symposium, don’t mean that immune function in this class of cancer isn’t important — just that it is likely more complicated than measuring the number of these lymphocytes, says the study’s lead author, Edith A. Perez, M.D., deputy director at large, Mayo Clinic Cancer Center, and director of the Breast Cancer Translational Genomics Program at Mayo Clinic in Florida. …

Early trial of new drug shows promise for patients with metastatic triple-negative breast cancer

The multi-center, non-randomized trial was designed to evaluate the safety, tolerability and antitumor activity of bi-weekly infusions of pembrolizumab (MK-3475, marketed as Keytruda�). The researchers enrolled 27 patients, aged 29 to 72 years, who had metastatic triple-negative breast cancer that either relapsed after treatment for early stage disease or progressed on therapy for advanced disease. …

Increased use of hypofractionated whole-breast irradiation for patients with early-stage breast cancer — ScienceDaily

An analysis of randomized trials demonstrated that patients with early-stage breast cancer who are treated with breast-conserving surgery and adjuvant whole-breast irradiation have improved survival and a lower risk of tumor recurrence compared to patients who are not treated with radiation therapy. Patients are commonly treated with CF-WBI; however, several recent randomized trials[2-5] have confirmed that patients treated with HF-WBI have similar disease-free and overall survival rates as those treated with CF-WBI. CF-WBI delivers a total dose of 45-50 Gy in 25-28 daily fractions of 1.8-2.0 Gy over five to six weeks, while HF-WBI uses a shorter treatment course and a lower total dose and number of fractions, delivering a total dose of 39-42.5 Gy in 13-16 daily fractions of 2.5-3.2 Gy over three to five weeks. This study, “Adoption of Hypofractionated Whole-Breast Irradiation for Early-Stage Breast Cancer: A National Cancer Data Base Analysis,” is a retrospective review of 113,267 early-stage breast cancer patients in the National Cancer Data Base (NCDB) from 2004 to 2011 who were treated with radiation therapy and were eligible to receive HF-WBI, and examines the use of HF-WBI compared to CF-WBI and the factors, including facility type and patient’s distance from the radiation treatment center, that influenced which type of WBI the patient received. …

Platinum agent combination treatment for triple-negative breast cancer well tolerated in phase II clinical trial — ScienceDaily

Triple-negative breast cancer is characterized by the absence of estrogen and progesterone receptors and the HER2/neu protein in breast cancer cells. That in itself presents a challenge in treating the disease, as it does not respond to hormonal- or HER2-targeted therapies that provide for positive outcomes in other subtypes of breast cancer. Triple-negative breast cancers are often deficient in DNA repair and other specific cellular pathways that make them susceptible to DNA damage. There is growing evidence that suggests platinum-based agents may offer improved outcomes in treating the subset of triple-negative breast cancer because of their specificity for causing DNA damage…

Platinum agent combination treatment for triple-negative breast cancer well tolerated in phase II clinical trial

Triple-negative breast cancer is characterized by the absence of estrogen and progesterone receptors and the HER2/neu protein in breast cancer cells. That in itself presents a challenge in treating the disease, as it does not respond to hormonal- or HER2-targeted therapies that provide for positive outcomes in other subtypes of breast cancer. …