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Biotherapy is widely considered as the fourth treatment modality for patients with cancer, and uses the constantly increasing knowledge in molecular biology, cell biology and immunology. Biotherapy uses naturally occurring biological molecules (e.g., cytokines and antibodies) or works by the manipulation of normal biological mechanisms (controlling or inhibiting tumor growth). Important achievements in anticancer drug development are immunotherapeutic strategies recently approved by the US FDA as well as clinical data of the cancer patients treated in clinical trials. There is a need to expand these novel cancer immunotherapeutic modalities for cancer patients all over the world. To meet that goal, it is essential to spread the information, to summarize the new clinical data and to draw the conclusions from the clinical and preclinical investigations. These frontline tasks can be well advanced by organizing international conferences in this domain in less scientifically developed countries, with a significant tumor burden statistics. Therefore, special efforts were done to organize the 2nd International Cancer Immunotherapy and Immunomonitoring Conference (CITIM-2011) in Hungary.

The use of intravenous immunoglobulin (IVIG) concentrated from pooled healthy donors' plasma has gained increasing popularity. IVIG therapy has become important as a replacement therapy in primary and acquired humoral immunodeficiencies, and it has been extended to autoimmune, neurodegenerative and inflammatory conditions and transplantation therapy. Recurrent pregnancy failure and cancer are rather new platforms, where IVIG has shown its beneficial effects. This manuscript is focused on these two off-labelled usages. The immunomodulatory mechanisms of IVIG therapy appear as a coordinated orchestration of different functions, resulting in a synergistic effect. Treatment monitoring and detailed molecular analyses reveal how such treatments may interfere with disease pathogenesis. These finding may foster the development of novel therapeutic and/or preventive strategies. Studying this field with bidirectional bench-to-bedside and bedside-to-bench approaches fit well into 'the two-way road' paradigm of translational medicine.