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Multiple Types Of Heart Attacks Reduced By Prasugrel In TRITON-TIMI 38 Trial
Investigators from the Phase III TRITON-TIMI 38 study applied the new classification system for the Universal Definition of Myocardial Infarction to the results of the study and showed that patients with acute coronary syndromes (ACS) undergoing percutaneous coronary intervention (PCI) and taking prasugrel, as compared with patients taking clopidogrel (Plavix(R)/Iscover(R)), experienced reduced risk of heart attack regardless of heart-attack type (procedural related or spontaneous), size or timing over a 15-month period. The new Universal Definition of Myocardial Infarction (1) was developed in 2007 by the Joint European Society of Cardiology, American College of Cardiology, American Heart Association and the World Heart Federation Task Force. This post hoc analysis was published in Circulation online on May 18, 2009.(2)
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Merck & Co., Inc. And Drugs For Neglected Diseases Initiative Collaborate To Find Treatments For World's Most Neglected Tropical Diseases
On the eve of an international meeting bringing together 200 African researchers to discuss progress on research for neglected tropical diseases (NTD), Merck & Co., Inc. and the not-for-profit Drugs for Neglected Diseases initiative (DNDi) announced a master agreement to support discovery and development of improved treatments for NTDs.
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Report Highlights Importance Of GPs, Australian Medical Association
A new Australian Institute of Health and Welfare/University of Sydney report on General Practice highlights the critical role GPs play in keeping the Australian community healthy, AMA Federal President, Dr Andrew Pesce, said today.
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Halting Advanced Metastatic Breast Cancer By Targeting MMPs

An upcoming G&D paper reveals how two specific matrix metalloproteinase (MMP) proteins contribute to bone metastasis in advanced breast cancer - lending important new insight into the design of clinically useful small molecule inhibitors. The study was led by Dr. Yibin Kang in Princeton University in close collaboration with Dr. Joan Massaguç© at MSKCC and Dr. Michael Reiss at the Cancer Institute of New Jersey. It will be published online ahead of print athttp:// www.genesdev.org/cgi/doi/10.1101/gad.1824809. "More than 70% of late stage breast cancer patients have skeletal complications," explains Dr. Yibin Kang. "It is important to uncover molecular mechanism of bone metastasis in order to come up with better treatments to reduce the pain and suffering from bone metastasis." MMPs are a large class of related enzymatic proteins that degrade the extracellular matrix. Normal MMP activity is tightly regulated, and is necessary for a number of physiological processes, like tissue remodeling, angiogenesis, ovulation and wound healing. However, MMP dysregulation facilitates tumor metastasis. MMP1 and ADAMTS1 are two different MMP family members that were previously identified in a genomic screen for breast cancer bone metastasis genes. Dr. Kang and colleagues now show how alterations in MMP1 and ADAMTS1 expression promote bone metastasis. MMP1 and ADAMTS1 are upregulated in breast cancer cell lines with an enhanced ability to metastasize to bone. Dr. Kang and colleagues demonstrated that MMP1 and ADAMTS1 enzymatically cleave and release EGF-like growth factors from tumor cells to stimulate EGFR signaling in the bone-building osteoblasts. The researchers went on to show that such signaling reduces the production of OPG, a suppressor of the bone-resorbing osteoclasts, eventually leading to hyperactivity of osteoclasts, bone destruction and subsequent expansion of bone metastasis. Thus, this paper supports a rationale for the therapeutic targeting of MMP1 and ADAMTS1, and suggests that inhibition of EGFR signaling in bone stromal cells to block osteoclast activity may represent a viable method of mitigating bone complications in advanced metastatic breast cancers. Reference: ADAMTS1 and MMP1 proteolytically engage EGF-like ligands in an osteolytic signaling cascade for bone metastasis Xin Lu, Qiongqing Wang, Guohong Hu, Catherine Van Poznak, Martin Fleisher, Michael Reiss, Joan Massague, and Yibin Kang Heather Cosel-Pieper Cold Spring Harbor Laboratory


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