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Anti-tumor effects are enhanced by inhibiting 2 pathways rather than 1
August 22, 2008Two independent research groups have found that simultaneous inhibition of two signaling pathways resulted in substantially enhanced antitumor effects in mouse models of prostate and breast cancer. In an accompany commentary, Steven Grant, at Virginia Commonwealth University Health Science Center, Richmond, discusses the clinical importance of these studies and highlights some of the questions that still need to be answered.
In the first study, Pier Paolo Pandolfi and colleagues, at Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, and Memorial Sloan-Kettering Cancer Center, New York, report that tumor samples from patients with biopsy-accessible solid tumors of advanced disease treated with a drug that inhibits the mTOR signaling pathway showed increased activation of the MAPK signaling pathway. Similar results were observed in a mouse model of prostate cancer following treatment with the same drug. As inhibition of the MAPK signaling pathway enhanced the antitumoral effects of inhibition of the mTOR signaling pathway in mice transplanted with a human breast cancer cell line, the authors suggest that a combination therapy using drugs that target each pathway might improve the treatment of human cancers.
In the second study, Cory Abate-Shen and colleagues, at Columbia University College of Physicians and Surgeons, New York, and the University of Medicine & Dentistry of New Jersey, Piscataway, show that simultaneous inhibition of the mTOR and MAPK signaling pathways inhibited the in vitro growth of prostate cancer cell lines and the in vivo growth of prostate tumors in a mouse model of prostate cancer. This was particularly true in a model of highly aggressive and frequently lethal forms of the disease, which do not respond to hormone deprivation therapy, leading the authors to suggest that this combination therapy might be particularly useful for treating patients with advanced, hormone-refractory prostate cancer.
Journal of Clinical Investigation
Journal of Clinical Investigation
Prostate Cancer Current Events and Prostate Cancer News RSSStudy shows further benefits of noscapine for prostate cancer
New research has revealed a major breakthrough in the use of cough medicine ingredient noscapine as a prophylactic treatment for prostate cancer.
Blocking cancer in its path: New cellular defect discovered
UCSF researchers have discovered that a key cellular defect that disturbs the production of proteins in human cells can lead to cancer susceptibility.
Revisiting the need to detect circulating tumor cells
One of the most dangerous characteristics of cancer is its ability to metastasize, or spread through the body. For this reason, oncologists have a major need for better tests to detect cells that break away from primary tumors to travel to other parts of the body.
Blacks Have Highest Cancer Rates of All Racial Ethnicities, Yet Feel Less at Risk, Study Finds
Mammograms, pap smears and early detection tests for prostate cancer, colorectal cancer and other malignancies are critical for catching cancer before it becomes deadly.
VAI researchers develop tool to help study prostate cancer
Van Andel Research Institute (VARI) researchers have developed a new method to better study the cells that line and protect the prostate in relation to the development of cancer.
Dietary supplements discouraged for prostate cancer patients
Prostate-specific dietary supplements should not be taken during radiation therapy treatments because they have been shown to increase the radiosensitivity of normal prostate cell lines, leading to normal tissue complications, according to a study in the March issue of the International Journal of Radiation Oncology*Biology*Physics, the official journal of the American Society for Radiation Oncology (ASTRO).
Like little golden assassins, 'smart' nanoparticles identify, target and kill cancer cells
Another weapon in the arsenal against cancer: Nanoparticles that identify, target and kill specific cancer cells while leaving healthy cells alone.
UAB Cancer Center, Urologists Affirm Men Should Take Lead in Deciding to Test for Prostate Cancer
Men who undergo prostate-cancer screening should discuss with a doctor the uncertainties, risks and benefits of the test before it is performed, says Edward Partridge, M.D., president-elect of the American Cancer Society (ACS) National Board of Directors and director of the University of Alabama at Birmingham (UAB) Comprehensive Cancer Center.
Freezing breast tumors helps stop cancer's spread in mice, U-M study finds
Freezing a cancer kills it in its place, and also appears to generate an immune response that helps stop the cancer's spread, leading to improved survival rates over surgery.
Prostate cancer surgeons 'feel' with their eyes
Robotic surgical technology with its three-dimensional, high-definition view gives surgeons the sensation of touch, even as they operate from a remote console.
More Prostate Cancer Current Events and Prostate Cancer News Articles
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Dr. Patrick Walsh's Guide to Surviving Prostate Cancer, Second Edition by Patrick C. Walsh (Author), Janet Farrar Worthington (Author) EVERY MAN NEEDS THIS BOOK! Each year, more than 200,00 American men are diagnosed with prostate cancer. The good news is that more men are being cured of this disease than ever before. Now in a revised second edition, this lifesaving guide by Dr. Patrick Walsh and ard-winning science writer Janet Farrar Worthington offers a message of hope to every man facing this illness. Prostate cancer is a different disease in every man--which means that the right treatment varies for each man. Giving you a second opinion from the world's top experts in surgery, pathology, urology, and radiation and medical oncology, this book helps you determine the best plan for you. Learn:What causes prostate cancer--your risk factors, including heredity, diet, and environmentHow some simple changes in your... |
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How We Survived Prostate Cancer: What We Did and What We Should Have Done by Victoria Hallerman (Author), Peter S. Albert M.D. (Foreword) Finally, a much-needed voice for the spouses and partners of prostate cancer survivors--an unflinchingly honest and beautifully written memoir about one couple's struggles and transformation that serves as a guide for others dealing with the disease. Facts: Though many sources exist for men dealing with this dreaded disease, their partners are often left on their own to figure out how to deal with personality changes and sudden "male menopause," how to redefine love and intimacy, and how to deal with side effects of the treatment. Victoria Hallerman, an accomplished... |
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You Can Beat Prostate Cancer by Robert J. Marckini (Author) The task of choosing the right prostate cancer treatment is daunting. It is further complicated by conflicting information the patient receives from physicians and the Internet. This book is written by a prostate cancer survivor who now runs an international prostate cancer support group. It's about his journey and the important things he learned along the way. It is the book the author wishes had been available when he was diagnosed 6 years ago. It is intended to provide specific information for men who are at risk or have been recently diagnosed with prostate cancer. All major treatment options are examined and the pros and cons of each are summarized. A relatively new, non-invasive, highly effective treatment is highlighted. It is an option that cures cancer as well as any other... |
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The Cleveland Clinic Guide to Prostate Cancer (Cleveland Clinic Guides) by Eric Klein (Author) Expert medical advice from one of the nation’s top-ranked hospitals for urology and cancer care This year, more than 230,000 men will be diagnosed with prostate cancer, while 1 in 6 men will fight prostate cancer in their lives. Prostate cancer is the most common cancer in men over age 50. In The Cleveland Clinic Guide to Prostate Cancer, Dr. Eric A. Klein, ranked one of America’s best doctors, offers men the substantive information they need to prevent, treat, and even live well with prostate cancer. This excellent resource gives readers the trusted medical guidance Dr. Klein offers his patients, including: The best diagnostic tests, new therapies, and medications currently being tested in clinical trialsInsight into the treatments that have been shown to be the most... |
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Prostate Cancer for Dummies by Paul H. Lange (Author), Christine Adamec (Author), Christine Adamec (Author) Hearing that you have prostate cancer, or even that you may have it, is very scary. But this disease, in many cases, is curable. Even if you have advanced cancer that's spread beyond the prostate, many treatments help extend your life for years. You need good information to help you with the decisions that lie ahead, and this book provides you with this information. Prostate Cancer For Dummies can help you if You have prostate cancer (or you think that you have it), or someone close to you has it. You want information on treatments for prostate cancer as you form a treatment plan with your doctor. You are curious about alternative therapies for prostate cancer. You want to know what actions you can take over the long-term to continue to fight your... |
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A Primer on Prostate Cancer: The Empowered Patient's Guide by Stephen Strum (Author), Donna L. Pogliano (Author) ¡§A Primer on Prostate Cancer, The Empowered Patient¡¦s Guide¡¨ is a basic resource to be used by patients and physicians when there has been a diagnosis of prostate cancer. It outlines a strategy of disease management that is designed to maximize outcomes for the patient and his loved ones. All aspects of diagnosis and testing are discussed; all currently approved treatments for prostate cancer are described. Discussion of treatment options includes information on side effects and includes questions the patient may not think to ask his doctor. Discussions of various treatments include the salvage therapies that might be employed if primary treatment fails. There is an extensive section on the theory and practice of androgen deprivation therapy in it¡¦s various forms, since... |
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Prostate and Cancer: A Family Guide to Diagnosis, Treatment, and Survival by Sheldon Marks MD (Author) Prostate cancer is one of the most common cancers affecting American men, with over 186,000 new cases diagnosed in the United States annually; 1 in 6 men will be diagnosed with prostate cancer during his lifetime. Renowned prostate cancer specialist Sheldon Marks offers the definitive guide for men concerned about or diagnosed with prostate cancer, and for their families. Since the third edition (2003), there have been significant changes in treatment and resources. Working with Dr. Judd Moul, the Chairman of Urology at Duke and one of the world’s top experts on prostate cancer, Marks provides the most up-to- date information on diagnosis, treatment, and common questions. |
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Saving Your Sex Life: A Guide for Men with Prostate Cancer by John P Mulhall (Author) In a straightforward style, Dr. John Mulhall guides the reader through the basics of male sexuality, explains the role of testosterone, the functions of the prostate, and the common difficulties men encounter when disease strikes. In plain language, this book spells out the causes and symptoms of prostate disease and diseases of the lower urinary tract and the approach to deal with the aftermath of treatment. |
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Surviving Prostate Cancer Without Surgery by Bradley Hennenfent (Author) The niche bestseller "Surviving Prostate Cancer Without Surgery" begins with the shooting of a urologist and includes a World War II Battle. The book exposes the big lie about radical prostate surgery, is filled with cartoons and simple diagrams, and is written for the average layperson in easy-to-understand style. "Surviving Prostate Cancer Without Surgery" quotes Dr. Gary Onik, M.D., Cryosurgeon and Director of Surgical Imaging at Celebration Health Hospital, Celebration, Florida, who says: "I expect that within five years we will see the death of the radical prostatectomy as a treatment for prostate cancer." The author, Bradley Hennenfent, M.D., has seen five uncles suffer from prostate cancer and his book includes many uplifting stories about less harmful treatments than surgery. Dr.... |
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Surviving Prostate Cancer: What You Need to Know to Make Informed Decisions (Yale University Press Health & Wellness) by E. Fuller Torrey M.D. (Author), Carlton Stoiber (Illustrator) When Dr. E. Fuller Torrey was diagnosed with prostate cancer, none of the books he could find was current enough or comprehensive enough to satisfy his need for information. This book is for the hundreds of thousands of other men who each year receive the same frightening diagnosis. It is the book Dr. Torrey wished he had when he was facing the countless questions that a man with prostate cancer, and his family and friends, all confront. Complete, up-to-date, and readable, the book explains how to come to terms with the diagnosis of prostate cancer, evaluate the severity of the disease, and assess the variety of treatment options and their complications. Many chapters provide information other books barely consider, such as a full discussion of the causes of prostate cancer and an... |
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