SCIENCE NEWS
Soy May Stop Prostate Cancer Spread
Researchers have found that a new, nontoxic drug made from a chemical in soy could prevent the movement of cancer cells from the prostate to the rest of the body. [Press release from Northwestern University Feinberg School of Medicine discussing research presented at the Ninth Annual American Association for Cancer Research Frontiers in Cancer Prevention Research Conference]
New Link Between Growth Factors and Early Prostate Cancer Found
A new study has found potential new biomarkers for very early prostate cancer in men with no symptoms of the disease. [Press release from the University of Bristol discussing research presented at the National Cancer Research Institute Cancer Conference]
Colorectal Cancer Risk Increases in Prostate Cancer Patients on Androgen Deprivation Therapy
Men taking androgen deprivation therapy for prostate cancer may have an increased risk of colorectal cancer, according to a study. [Press release from EurekAlert! discussing online prepublication in the Journal of the National Cancer Institute]
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LABORATORY RESEARCH
Monoclonal Antibody Targeting of N-Cadherin Inhibits Prostate Cancer Growth, Metastasis and Castration Resistance
Comparing gene expression in isogenic androgen-dependent and castration-resistant prostate cancer (CRPC) xenografts, researchers found a reproducible increase in N-cadherin expression, which was also elevated in primary and metastatic tumors of individuals with CRPC. [Nat Med]
Insulin-Like Growth Factor I Suppresses Bone Morphogenetic Protein Signaling in Prostate Cancer Cells by Activating mTOR Signaling
Insulin-like growth factor (IGF) I and bone morphogenetic proteins (BMP) are critical regulators of prostate tumor cell growth. In this report, researchers offer evidence that a critical support of IGF-I in prostate cancer is mediated by its ability to suppress BMP4-induced apoptosis and Smad-mediated gene expression. [Cancer Res]
Opposite Functions of HIF-Alpha Isoforms in VEGF Induction by TGF-Beta1 Under Non-Hypoxic Conditions
Researchers demonstrate here that tumor-producing transforming growth factor (TGF)-beta1 induces vascular endothelial growth factor (VEGF) in prostate cancer cells, and hypoxia-inducible factor (HIF)-1alpha and HIF-2alpha has opposite functions in TGF-beta1 regulation of VEGF expression under non-hypoxic conditions. [Oncogene]
The Bcl-2-Beclin 1 Interaction in (-)-Gossypol-Induced Autophagy Versus Apoptosis in Prostate Cancer Cells
The results provide new insights into the mode of cell death induced by Bcl-2 inhibitors, which could facilitate the rational design of clinical trials by selecting patients who are most likely to benefit from the Bcl-2-targeted molecular therapy. [Autophagy]
Ligation of Prostate Cancer Cell Surface GRP78 Activates a Pro-Proliferative and Anti-Apoptotic Feedback Loop: A Role for Secreted PSA
In the current study, researchers demonstrate that ligation of prostate cancer cell surface GRP78 by its natural ligand, activated alpha2-macroglobulin (alpha2M*), results in a two-threefold upregulation in the synthesis of prostate specific antigen (PSA). [J Biol Chem]
Recurrence-Free Survival in Prostate Cancer is Related to Increased Stromal TRAIL Expression
TRAIL (tumor necrosis factor related apoptosis-inducing ligand) is involved in tumor immune surveillance and, thus, may be a potential cancer therapy. TRAIL expression in the tumor microenvironment has been shown to impact cancer survival in multiple tumor types, including ovarian cancer. Researchers studied TRAIL expression and outcomes in patients with prostate cancer. [Cancer]
CLINICAL RESEARCH
Risk of Colorectal Cancer in Men on Long-Term Androgen Deprivation Therapy for Prostate Cancer
Long-term androgen deprivation therapy for prostate cancer is associated with an increased risk of colorectal cancer. [J Natl Cancer Inst]
Ten-Year Outcomes of High-Dose, Intensity-Modulated Radiotherapy for Localized Prostate Cancer
The authors investigated long-term tumor control and toxicity outcomes after high-dose, intensity-modulated radiation therapy in patients who had clinically localized prostate cancer. [Cancer]
Prostate Cancer at the Peripheral End of a Prostate Biopsy Specimen as Assessed by a Novel Marking Technique May Indicate Increased Risk of Locally Advanced Disease
The objective of this study was to test a novel technique of processing a prostate biopsy specimen by marking its peripheral end as a predictive tool for locally advanced prostate cancer or margin-positive resection after radical prostatectomy. [Prostate Cancer Prostatic Dis]
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EVENTS (Listed by Date)
22nd European Organization for Research and Treatment of Cancer (EORTC)-National Cancer Institute (NCI)-American Association for Cancer Research (AACR) Symposium: Molecular Targets and Cancer Therapeutics
November 16-19, 2010 Berlin, Germany Cancer Pharmacogenetics: Personalizing Medicine
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November 30-December 3, 2010 Miami, United States 5th Annual Stem Cell Meeting on the Mesa
December 7, 2010 La Jolla, United States 11th Annual Meeting of the Society of Urologic Oncology (SUO): Extraordinary Opportunities for Discovery
December 8-9, 2010 Bethesda, United States NEW The 3rd Guangzhou International Conference on Stem Cell Biology and Regenerative Medicine
December 17-19, 2010 Guangzhou, China American Association for Cancer Research (AACR) Targeting PI3K/mTOR Signaling in Cancer
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March 16-19, 2011 Las Vegas, United States United Kingdom National Stem Cell Network 2011 Annual Scientific Conference
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