The impact of a pharmacist as a member of healthcare team on facilitating evidenced-based prescribing of innovative drugs in an Italian oncology department.

AIMS AND BACKGROUND: At the Oncology Department of the Chieti and Ortona Hospitals, the pharmacist designated by the Abruzzo Region to oversee the obligatory monitoring of innovative oncological drugs listed in the database of the Italian Medicines Agency (AIFA) collaborates with oncologists to educate them about evidenced-based prescribing for off-label uses of drugs and to optimize the efficiency of spontaneous reporting of adverse drug reaction (ADR) local system. METHODS: The contribution of the pharmacist as a member of the healthcare team was evaluated using the following indices: the percentage of off-label prescriptions of the innovative drugs monitored, the number of reported ADRs, and the percentage of pharmacist suggestions actually implemented by physicians. RESULTS: In the course of 3 years (2008-2010), the pharmacist monitored a total of 843 patients treated with 716 appropriate uses and 127 off-label uses of drugs, oversaw a reduction in the latter from 28.3% in 2008 to 9.6% in 2010, and contributed to almost tripling the number of reported ADRs, from 10 in 2008 to 27 in 2010. In 2010, the pharmacist identified 60 potentially inappropriate prescribing cases, and proposed more appropriate prescriptions for each case: 68.3% (41) of the suggestions were implemented by the physicians and only 31.7% (19) were not. According to answers to a questionnaire administered at the end of the 2010 to evaluate the usefulness of this particular collaboration, physicians are interested in continuous and extensive collaboration. CONCLUSIONS: This article demonstrates that a pharmacist, active in the department as part of the heath-care team, can facilitate evidenced-based prescribing for off-label uses of drugs and improve spontaneous reporting of ADRs.

MicroRNA-519a-3p mediates apoptosis resistance in breast cancer cells and their escape from recognition by natural killer cells.

Aggressive breast cancer is associated with poor patient outcome and characterized by the development of tumor cell variants that are able to escape from control of the immune system or are resistant to targeted therapies. The complex molecular mechanisms leading to immune escape and therapy resistance are incompletely understood. We have previously shown that high miR-519a-3p levels are associated with poor survival in breast cancer. Here, we demonstrate that miR-519a-3p confers resistance to apoptosis induced by TRAIL, FasL and granzyme B/perforin by interfering with apoptosis signaling in breast cancer cells. MiR-519a-3p diminished the expression of its direct target genes for TRAIL-R2 (TNFRSF10B) and for caspase-8 (CASP8) and its indirect target gene for caspase-7 (CASP7), resulting in reduced sensitivity and tumor cell apoptosis in response to apoptotic stimuli. Furthermore, miR-519a-3p impaired tumor cell killing by natural killer (NK) cells via downregulation of the NKG2D ligands ULBP2 and MICA on the surface of tumor cells that are crucial for the recognition of these tumor cells by NK cells. We determined that miR-519a-3p was overexpressed in more aggressive mutant TP53 breast cancer that was associated with poor survival. Furthermore, low levels of TRAIL-R2, caspase-7 and caspase-8 correlated with poor survival, suggesting that the inhibitory effect of miR-519a-3p on TRAIL-R2 and caspases may have direct clinical relevance in lowering patient's prognosis. In conclusion, we demonstrate that miR-519a-3p is a critical factor in mediating resistance toward cancer cell apoptosis and impairing tumor cell recognition by NK cells. This joint regulation of apoptosis and immune cell recognition through miR-519a-3p supports the hypothesis that miRNAs are key regulators of cancer cell fate, facilitating cancer progression and evasion from immunosurveillance at multiple and interconnected levels.