Tag Archives: breast

Regulation of cancer stem cell growth, survival

In this paper, the authors show evidence indicating the presence of autocrine/paracrine EPO in the conditioned medium of cultured breast cancer cells and a functional role of an EPO-EPOR autocrine/paracrine loop in regulating tumor cell invasion and migration, and the stem-ness of breast cancer cells. The data support a novel paradigm wherein autocrine/paracrine EPO may regulate tumorigenesis of breast cancer via stimulating a small percentage of stem-like cancer cells or tumor-initiating cells. This mode of EPO action may explain why some studies reported in literature failed to demonstrate a pro-proliferative and pro-survival role of EPO in cancer cells when whole-populations of cancer cells were analyzed in these studies. source : http://www.sciencedaily.com/releases/2014/01/140106160121.htm

New cell mechanism discovery key to stopping breast cancer metastasis

"Genetic mutations do not drive this mechanism," said Alana Welm, PhD, senior author of the study, associate professor in the Department of Oncological Sciences, and an investigator at Huntsman Cancer Institute. "Instead, it’s improper regulation of when genes turn on and off." The new discovery focuses on a protein called RON kinase (RON), which signals some areas of tumor cell DNA to become active…

Technologies revealed that streamline breast cancer treatment

Jersey Shore and Ocean Medical Center now offer accelerated partial breast irradiation (APBI) for breast cancer treatment using the CONTURA ® Multi-Lumen Balloon (MLB) Catheter. This unique method of radiation treatment delivery involves the placement of a deflated balloon in the lumpectomy cavity post-surgery through a small incision. The balloon is then filled with saline and temporarily left in place for up to 10 days during treatment. …

Fatigue, a common side effect of breast cancer treatment, evaluated in novel patient study

"Understanding who is at risk for post-treatment fatigue, and why, is the first critical step in the development of personalized, targeted interventions for the treatment and prevention of breast cancer-related fatigue," said Arash Asher, MD, director of cancer rehabilitation and survivorship at the Cedars-Sinai Samuel Oschin Comprehensive Cancer Institute and the medical center’s primary investigator on the study. …

Role for sugar uptake in breast cancer revealed

"A dramatic increase in sugar uptake could be a cause of oncogenesis," Bissell says. "Furthermore, through a series of painstaking analysis, we have discovered two new pathways through which increased uptake of glucose could itself activate other oncogenic pathways. This discovery provides possible new targets for diagnosis and therapeutics." Working with Bissell, Yasuhito Onodera, a Japanese postdoctoral fellow in her research group who is now an assistant professor in Japan, examined the expression of glucose transporter proteins in human breast cells. The focus was on the glucose transporter known as GLUT3, the concentrations of which Onodera and Bissell showed are 400 times greater in malignant than in non-malignant breast cells…

Younger, early breast cancer patients often undergo unnecessary staging, imaging procedures

Presented at a poster session at the 2013 CTRC-AACR San Antonio Breast Cancer Symposium by Carlos Barcenas, M.D., assistant professor in MD Anderson’s Breast Medical Oncology, the study is the first to look at the issue of over-use of staging procedures, including imaging and tumor markers in the diagnosis setting, specifically in younger, early-stage breast cancer patients. Over-testing and unnecessary procedures extends beyond cancer care across the healthcare continuum. …

Patients with metastatic breast cancer may not benefit from surgery and radiation after chemotherapy

"There is a small percentage, about 5 to 20 percent of breast cancer patients, who present with metastatic breast cancer when they see their doctors for the first time, and across the globe, the thought is that the local tumor in such events does not require any surgery or radiation [known as loco-regional treatment (LRT)] after chemotherapy, unless there is bleeding or ulceration," said Rajendra Badwe, M.D., director of the Tata Memorial Hospital in Mumbai, India. "However, there are conflicting results from retrospective analyses, and hence, there was a need for a randomized trial…