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Warwick, RI, United States

Negri F.V.,University of Parma | Crafa P.,University of Parma | Pedrazzi G.,University of Parma | Bozzetti C.,University of Parma | And 17 more authors.
Future Oncology | Year: 2015

Aim: To assess the role of Notch activation in predicting bevacizumab efficacy in colorectal cancer (CRC). Materials & methods: Notch activation was evaluated by immunohistochemistry (IHC) on 65 CRC enrolled within randomized clinical trials assessing first-line bevacizumab-based chemotherapy and on 21 CRC treated with chemotherapy alone. Results: Strong Notch (IHC 3+) activation was negatively associated with response (18 vs 62% in low Notch cases [IHC 0, 1, 2+]; p = 0.016), progression-free survival (4.9 vs 12.1 months; p = 0.002) and overall survival (19.3 vs 30.4 months; p = 0.039). No correlation was found between Notch activation and clinical outcome in CRC treated with chemotherapy alone. Conclusion: A potential role of Notch activation in the antitumor activity of bevacizumab could be hypothesized. © 2015 Future Medicine Ltd. Source

Biomedical Structures, Concordia Medical and Concordia Manufacturing LLC | Date: 2007-09-25

Non-woven mesh felt substrates for use in the replacement and grafting of biologic tissue in the field of biomedical textile engineering.

Passalacqua R.,Concordia Medical | Annunziata M.A.,Italian National Cancer Institute | Borreani C.,Unit of Clinical Psychology | Diodati F.,University of Parma | And 4 more authors.
Supportive Care in Cancer | Year: 2016

Purpose: This study examines the development and feasibility of a quality improvement strategy for the translation of evidence-based psychosocial care into clinical practice. Methods: The project involved all staff (oncologists, psychologists, and nurses) of the participating centers. Recommendations concerned: improvement of clinician communication skills; use of a patient question prompt list; assignment of a specialist nurse to each patient; screening for psychological distress and social needs; opportunity to attend a Point of Information and Support. The implementation strategy hinged on context analysis and problem solving. Four to six visits were held in each center by the project team to assist staff in identifying obstacles, finding solutions, and strengthening motivation. The primary variable was the adherence percentage to the recommendations (proportion of subjects receiving each intervention). The number of centers that failed to reach the objective was also reported (adherence percentage <75 %). Results: Twenty-seven of twenty-eight centers completed the study. Lack of resources was the most commonly perceived barrier preimplementation. Five-hundred-forty-five clinicians were actively involved in the project and completed training. The adherence percentage for each recommendation was greater than 85 % except for the question prompt list (78 %; 95 % CI, 73–83 %), where seven centers did not reach the objective. Conclusions: Our findings demonstrate that evidence-based interventions to improve the psychosocial care of people with cancer can be implemented in a diverse range of oncology wards. This requires the involvement and motivation of the entire staff of the ward, support by an expert team, and promotion by policymakers. © 2015, Springer-Verlag Berlin Heidelberg. Source

Ratti M.,Concordia Medical | Tomasello G.,Concordia Medical
Anti-Cancer Drugs | Year: 2014

The epidermal growth factor receptor (EGFR) is responsible for the growth and progression of tumor cells; its overexpression and deregulation of its downstream signaling pathway have been found in many different neoplasms. These characteristics make it an ideal target for cancer treatment. Two classes of EGFR inhibitors, which bind to different parts of this molecule, have been developed and studied: monoclonal antibodies, such as cetuximab and panitumumab and tyrosine kinase inhibitors, including erlotinib and gefitinib. The effectiveness of these new drugs is considerably reduced by a number of mechanisms of resistance developed by tumor cells. Hence, there is a clear need for better characterization of these processes and finding new therapeutic strategies to make the action of these drugs more incisive. Here, we describe some of the mechanisms of resistance to EGFR inhibitors and review the main innovations attempting to overcome these drawbacks. © 2014 Wolters Kluwer Health | Lippincott Williams & Wilkins. Source

Gui L.,Yale University | Zhao L.,Yale University | Spencer R.W.,Concordia Medical | Burghouwt A.,Concordia Medical | And 3 more authors.
Tissue Engineering - Part A | Year: 2011

Functional connective tissues have been developed using tissue engineering approach by seeding cells on biodegradable scaffolds such as polyglycolic acid (PGA). However, a major drawback of tissue engineering approaches that utilize synthetic polymers is the persistence of polymer remnants in engineered tissues at the end of culture. Such polymer fragments may significantly degrade tissue mechanics and stimulate local inflammatory responses in vivo. In this study, several polymeric materials with a range of degradation profiles were developed and evaluated for their potential applications in construction of collagen matrix-rich tissues, particularly tissue-engineered blood vessels. The degradation characteristics of these polymers were compared as were their characteristics vis-à-vis cell adhesion and proliferation, collagen synthesis, and ability to support growth of engineered vessels. Under aqueous conditions at 37°C, Polymer I (comprising 84% glycolide and 16% trimethylene carbonate [TMC]) had a similar degradation profile to PGA, Polymer II (comprising 84% glycolide, 14% TMC, and 2% polyethylene succinate) degradedly more slowly, but Polymer III (comprising 87% glycolide, 7% TMC, and 6% polyethylene glycol) had a more extensive degradation as compared to PGA. All polymers supported cell proliferation, but Polymer III improved collagen production and engineered vessel mechanics as compared with PGA. In addition, more slowly degrading polymers were associated with poorer final vessel mechanics. These results suggest that polymers that degrade more quickly during tissue culture actually result in improved engineered tissue mechanics, by virtue of decreased disruption of collagenous extracellular matrix. © 2011 Mary Ann Liebert, Inc. Source

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