ABSTRACT
PURPOSE: This study was undertaken to investigate in detail the xenograft mouse orthotopic lung cancer model induced by PC14PE6 adenocarcinoma cells. MATERIALS AND METHODS: Three cell doses (0.5x10(6); 1x10(6); 2x10(6)) of PC14PE6 cells were injected into the lungs of male BALB/c nude mice by the intrathoracic injection method. The lung and other organs, including brain, liver, spleen, kidney, muscle, adrenal gland, and lymph node on knee, were removed and stained with H/E to detect the presence of tumor cells. RESULTS: The reliable tumorigenicity time in the PC14PE6 adenocarcinoma cell-inoculated BALB/c nude mouse was 10 days after intrathoracic injection. The average life span of the three groups after inoculation was 14 days in the 2x10(6) cells inoculum group; 25 days in the 1x10(6) cells inoculum group; and 32 days in the 0.5x10(6) cells inoculum group. The PC14PE6 adenocarcinoma cells induced orthotopic lung cancer limited within the thorax. CONCLUSIONS: This orthotopic lung cancer model is an efficient cancer model with easy inoculation methods, rapid and high tumorigenicity, and simple monitoring methods for metastasis.
Subject(s)
Animals , Humans , Male , Mice , Adenocarcinoma , Adrenal Glands , Brain , Heterografts , Kidney , Knee , Liver , Lung Neoplasms , Lung , Lymph Nodes , Mice, Nude , Models, Animal , Neoplasm Metastasis , Spleen , ThoraxABSTRACT
PURPOSE: Antineutrophil cytoplasmic antibody (ANCA) has been identified in various disorders including Wegener's granulomatosis, microscopic polyarteritis and Kawasaki disease. Measuring this antibody has a diagnostic role. It facilitates monitoring disease activity and may also help understand the pathogenesis of the diseases in which it is found. We investigated the correlation between the hematologic findings and ANCA in acute Kawasaki disease and the diagnostic potential of ANCA to predict coronary artery involvement. METHODS: Thirty-eight patients who met the diagnostic criteria for Kawasaki disease were enrolled in this study. We sampled and investigated the hematologic findings and the assay of ANCA before intravenous immunoglobulin treatment and weekly echocardiographs weekly. RESULTS: There was no sexual difference between ANCA positive and negative group. The age in ANCA positive group was significantly lower than in ANCA negative group. Duration of fever before treatment in ANCA positive group were not significantly different from those in ANCA negative group. In ANCA positive group, the mean WBC count and the mean ESRs were higher than in ANCA negative group. There was no relation between ANCA and coronary artery involvement. CONCLUSION: The assays of ANCA in acute Kawasaki disease does not help to predict disease activity and coronary artery involvement.