OBJECTIVE: The efficacy of two-drug combination treatment may be schedule-dependent. We investigated a simulated in-vitro interaction between taxol and doxorubicin in a Cervical cancer cell line HeLa and the role of peroxiredoxin in cytotoxicity. METHODS: Two contradicting schedules of two drugs (taxol followed by doxorubicin or vice versa) were compared each other in terms of cytotoxicity in parental HeLa cell line and the peroxiredoxin (prx)-overexpressing variant. Cytotoxic activity was determined by MTT assay. Cell cycle pertubation was evaluated by flow cytometric analysis. Protein levels were determined by western blot. RESULTS: The sequential treatment of taxol followed by doxorubicin (T-- Appointments and Schedules ; Blotting, Western ; Cell Cycle ; Cell Line ; Cell Line, Tumor* ; Cyclin D1 ; Doxorubicin ; HeLa Cells ; Humans ; Paclitaxel ; Parents ; Peroxiredoxins* ; Uterine Cervical Neoplasms

As a minor blood antigen, the Duffy blood group has 5 antigens which are Fya, Fyb, Fy3, Fy4 and Fy5. When the Duffy group is implicated in delayed transfusion reactions, one expects to find anti-Fya rather than Fyb. We experienced a case of delayed hemolytic transfusion reaction caused by anti-Fyb antibody. A 69 year-old woman was referred having had hematuria, fever, chill and jaundice 9 days after transfusion. The hemoglobin was 9.5mg/dl, reticulocyte count 1.4%, liver function test showed total bilirubin 10.8mg/dL, LDH 5,225IU/L, alkaline phosphatase 26IU/L. Indirect antiglobulin test was positive, while the direct one was negative. A delayed hemolytic transfusion reaction was suspected as patient's serum was reacted with panel cells for the antibody identification test and the anti-Fyb was finally identified. The patient recovered without specific treatment. There were no severe complication and sequele.It appears to be the first reported case of hemolytic transfusion reaction caused by anti-Fyb in Korea.
Aged ; Alkaline Phosphatase ; Bilirubin ; Blood Group Incompatibility ; Coombs Test ; Female ; Fever ; Hematuria ; Humans ; Jaundice ; Korea ; Liver Function Tests ; Reticulocyte Count