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Inside the Tulane Cancer Center Winter 2001/2 Newsletter |
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New Mammography Legislation for Louisiana
Beauty Shop Initiative Reaches Out to African-American Female Community NFL Gridiron Glamour Celebrity Luncheon & Fashion Show "Fashion Targets Breast Cancer" Highlights Cancer Crusaders Celebrate 25th Anniversary STAR Breast Cancer Prevention Study Seeks Volunteers New Telephone Counseling Study Underway TCC Researchers Explore Chemoresistance and NF-kB Member Spotlight on Frank E. Jones, Ph.D.: Researching ErbB2 and Breast Cancer |
NOTE: Just prior to this publication, a controversial critique of mammography appeared in the journal Lancet and was widely reported in the popular press. Tulane's breast cancer experts and most of the medical community at large await more data and the outcome of scholarly debate before advocating any change in our recommendations for mammography. At this time, it is our opinion that an annual mammogram and a clinical breast exam beginning at age 40 is the best way for women to avoid dying from breast cancer. For questions, call 1-800-588-5800 (press *).
That's the premise of a unique new outreach program being organized by the Tulane Cancer Center Office of Clinical Research which will provide African-American women with educational materials and programs about breast health while they visit their favorite beauty salons. "Instead of having them come to us," said Ramsey, "this program takes our message to the people we're trying to reach in a place they would normally go as a matter of daily routine, and the message is being delivered by someone they normally talk to on a regular basis." According to Ramsey, the effectiveness of this effort depends greatly upon the salon representatives taking ownership of the program as a group and deciding this is something they want to do. So far, this seems a very realistic goal. At a recent orientation luncheon to introduce the program to beauty salon owners who expressed interest, there was a great deal of excitement and anticipation. "We were able to clarify some misconceptions they had about breast cancer, and they were willing and eager to share what they had learned with their clientele. In fact, some are actively trying to recruit other salon owners they know to participate as well," said Ramsey.
NFL Gridiron Glamour 2002 a Star-Studded Success!
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| Roy S. Weiner, M.D. (left) and Paul Whelton, M.D., Senior Vice President for Health Sciences (right), with Miss America 2002 Katie Herman, who was one of the celebrity models for the NFL Gridiron Glamour fashion show. | NFL quarterback Rodney Peete and actress Holly Robinson-Peete, founders of the HollyRod Foundation and NFL Gridiron Glamour. |
(Standing, from left): Roy S. Weiner, M.D. and Cathy Pierson, Fashion Targets Breast Cancer Committee co-chairperson; (seated, from left) Carolyn Elder, general manager of Saks Fifth Avenue New Orleans, and Ana Gershanik, Fashion Targets Breast Cancer committee chairperson.
Breast cancer may be a preventable disease. Recent results of a study involving 1,300 women showed that Tamoxifen could reduce the risk of breast cancer by 50%. Based on these breakthrough results, an important new study is being conducted to test a promising new approach. Post-menopausal women who are at least 35 years old and who are at increased risk of developing breast cancer are being recruited by the Tulane Cancer Center and over 400 other centers across the United States, Canada, and Puerto Rico, for the Study of Tamoxifen and Raloxifene (STAR), one of the largest breast cancer prevention studies ever undertaken. The goal is to recruit five hundred women locally to participate in this nationwide study of 22,000 women, which will determine whether the osteoporosis prevention drug Raloxifene (Evista(R)) is as effective in reducing the chance of developing breast cancer as Tamoxifen (Nolvadex(R)) has proven to be and with fewer side effects. Women who participate in STAR must be post-menopausal, at least age 35, and have an increased risk of breast cancer based on the following factors: current age; number of first-degree relatives (mother, daughter, or sisters) with a history of breast cancer; number of children and age at first delivery; the number of breast biopsies a woman has had, especially if the biopsy showed a condition known as atypical hyperplasia; and the woman's age at her first menstrual period. The study is limited to post-menopausal women because the drug Raloxifene has yet to be adequately tested for long-term safety in premenopausal women. Menopause could have come naturally or by the result of a surgical procedure.
The Office of Clinical Research at the Tulane Cancer Center is currently enrolling participants in a Southwest Oncology Group (SWOG) study designed to assess the impact of telephone counseling on women diagnosed with a first recurrence of breast cancer. "This is a very interesting area of research," said Tim Pearman, Ph.D., Assistant Professor of Psychiatry and Neurology and Director of the Patricia Trost Friedler Counseling Center at the Tulane Cancer Center, "since very little research has focused on women experiencing a recurrence of their cancer. Most research has been on women newly diagnosed, women who have survived cancer disease-free, or women with metastatic, terminal illness."
"It's a Darwinian response," said Christopher B. Weldon, M.D., Ph.D., surgical resident in the Department of Surgery at Tulane University Health Sciences Center, when asked to describe the process of chemoresistance. "All cells, including cancer cells, instinctively strive for survival." Chemotherapeutic regimens are designed to use a variety of innate intracellular and extracellular pathways to bring about cell death. However, cellular adaptations have enabled some tumor cells to elude the effects of many chemotherapeutic drugs. According to Dr. Weldon, one such adaptation is the activation of molecular pathways within tumor cells which are upregulated or turned on when the cell is exposed to stressors, such as chemotherapy. These mechanisms ultimately lead to chemoresistance. "The goal of our research was to better define these chemoresistance pathways in breast cancer cells," said Weldon. "If we can better understand the molecular responses leading to chemoresistance, we can then develop adjuvant therapies which can basically downregulate, or turn these responses off, making chemotherapy regimens more successful. Our research has determined that the nuclear transcription factor NF-kappa B (NF-kB), which is present in all cells, both healthy cells and cancer cells, is intimately involved in a cell's ability to resist death."
His quest to better understand the causes of breast cancer has led researcher Frank E. Jones, Ph.D., to what he feels is a prime suspect -- ErbB2 (pronounced er-bee two). It's a hormone-driven receptor gene that aids in the natural growth and development of the female breast and is found on the surface of breast cells. Hormones regulate ErbB2, activating it to perform its natural functions. Then, in a healthy individual, signals are in place to turn it off naturally, or downregulate, its growth-stimulating activity at the appropriate times. In breast cancer patients, it is believed that these signals are lost, leading to enhanced activity of overexpressed ErbB2 and unchecked cellular proliferation and tumor development. "In fact, ErbB2 is overexpressed in 40-60% of breast cancers," said Dr. Jones. "So, the signals regulating ErbB2 are the aim of our research. At this time, we don't fully understand the mechanisms leading to ErbB2 overexpression and activation in breast cancer cases, but we do know that ErbB2 plays a major role in the progression to metastatic disease."
With this issue of Inside Tulane Cancer Center, we introduce our new editor, Melanie Cross. Melanie comes to us with formal training and education in communication and experience in academic public relations, most recently at our own Tulane Department of Urology. Her insight and her skills are evident in our new format and the content of this issue. As a true professional, however, she requests that the readers help her improve our communications and provide her with feedback at mcross@tulane.edu.
Barbara S. Beckman, Ph.D.
Melvin C. Gitlin, M.D., F.A.C.P.M.
Charles S. Hemenway, M.D., Ph.D.
Steven M. Hill, Ph.D.
Frank E. Jones, Ph. D.
Samuel J. Landry, Ph.D.
Laura S. Levy, Ph.D.