: Chronic myeloid leukemia and interferon -alpha: a study of complete cytogenetic NVP-BSK805 esponders. Blood 2001,98(10):3074–3081.PubMedCrossRef 24. Cheng XL, Sumin C, Nonggaao H, Li C, Chi S, He N, Zhang X, Guicherit O, Wagner R, Tyring S, Xie J: IFNα induces Fas expression and apoptosis in hedgehog pathway activated BCC cells through inhibiting Ras-Erk signaling. Oncogene 2004,23(8):1608–1617.CrossRef Competing interests The authors declare that
they have no competing interests. Authors’ contributions HZ, BL, TL and WM designed the study, BL and CZ carried out PCR, HZ, Bing Long drafted the manuscript and performed the statistical analysis. All authors read and LY333531 mw approved the final manuscript.”
“Introduction Blood component irradiation is the only proven method of preventing a risk of transfusion-associated graft versus find more host disease (TA-GVHD) . This immunologic
reaction of engrafted lymphocytes against the host system is intense and proves fatal in about 90% of affected patients . The irradiation of blood components inhibits lymphocyte function avoiding damage to the platelets and other blood fractions. Moreover, it renders T-lymphocytes incapable of replication without affecting the function of RBCs, granulocytes, and platelets. The irradiation can
be performed using a dedicated blood irradiation device based on Cesium-137  or a Cobalt-60 source, or else an X-ray device. Each radiation machine has specific constructive design and energy which determine the time and methods of blood bag irradiation within an appropriate dose range. Studies on the radiosensitivity of T cells to X-rays and to gamma rays have shown that a minimum dose of 25 Gy is necessary to prevent TA-GVHD [3–6]. Moreover, the dose must not exceed 50 Gy in order to avoid harming Morin Hydrate the function or decreasing the life span of red blood cells, platelets or granulocytes [3, 7–10]. Although there have not been any reported cases of TA-GVHD following platelet transfusion alone, the same irradiation method is applied due to the fact that platelets are also contaminated with a small number of lymphocytes . Red cells may be irradiated at any time up to 14 days after collection and thereafter stored for a further 14 days from irradiation. Where the patient is at particular risk from hyperkalaemia, it is recommended that red cells be transfused within 24 hours of irradiation.