IGF-dependent dynamic modulation of a protease cleavage site in the intrinsically disordered linker domain of human IGFBP2.

Functional regulation via conformational dynamics is well known in structured proteins but less well characterized in intrinsically disordered proteins and their complexes. Using NMR spectroscopy, we have identified a dynamic regulatory mechanism in the human insulin-like growth factor (IGF) system involving the central, intrinsically disordered linker domain of human IGF-binding protein-2 (hIGFBP2). The bioavailability of IGFs is regulated by the proteolysis of IGF-binding proteins.

Value Frameworks in Oncology: Comparative Analysis and Implications to the Pharmaceutical Industry.

Background: As the cost of oncology care continues to rise, composite value models that variably capture the diverse concerns of patients, physicians, payers, policymakers, and the pharmaceutical industry have begun to take shape.

Objectives: To review the capabilities and limitations of 5 of the most notable value frameworks in oncology that have emerged in recent years and to compare their relative value and application among the intended stakeholders.

Methods: We compared the methodology of the American Society of Clinical Oncology (ASCO) Value Framework (version 2.

Drug Safety and the Cost of Monitoring: The Role of REMS in Risk Management.

Background: The mission of the US Food and Drug Administration (FDA) can be viewed as a pendulum that swings between protecting public health and patient safety and promoting the public health through the drug review and approval process. Two decades of legislation have by and large provided the FDA with additional resources under the successive reauthorizations of the Prescription Drug User Fee Acts (PDUFA) to provide a necessary infusion of funds to hire medical experts, scientists, and epidemiologists, among other disciplines, to expedite review of new drug and biologic applications. However, a renewed attention to potential adverse drug experiences, culminating in the Vioxx withdrawal, has resulted in the passage of the Food and Drug Administration Amendments Act of 2007 (FDAAA).

CD147-dependent heterogeneity in malignant and chemoresistant properties of cancer cells.

CD147 (alias emmprin or basigin), an integral plasma membrane glycoprotein and a member of the Ig superfamily, is widespread in normal tissues, but highly up-regulated in many types of malignant cancer cells. CD147 is multifunctional, with numerous binding partners. Recent studies suggest that complexes of CD147 with the hyaluronan receptor CD44 and associated transporters and receptor tyrosine kinases are enriched in the plasma membrane of cancer stem-like cells.

Plasma osteopontin velocity differentiates lung cancers from controls in a CT screening population.

Introduction: As CT screening is integrated into non-small cell lung cancer (NSCLC) care, additional parameters are needed to help distinguish cancers from benign nodules. Osteopontin (OPN), a secreted phosphoprotein, has elevated plasma levels in NSCLC. We hypothesize that changes in plasma OPN over time (i.