RESUMO
Wilms' tumor, also called nephroblastoma, is an extremely uncommon kidney tumor of adulthood. We reported a adult man with a left kidney mass diagnosed as Wilms' tumor. Case presentation: A 25-year-old man was hospitalized due to injury of the anterior cruciate ligament of the right knee. Preoperative imaging accidentally revealed a mass measuring 53 × 46 mm involving the middle and lower segments of the left kidney without evidence supporting the invasion of the surrounding structures or metastasis. The patient didn't show any symptom commonly occurred in Wilms' tumor, such as flank pain or hematuria. After nephrectomy, the diagnosis of adult Wilms' tumor was confirmed based on the tumor morphology and immunohistochemical findings. Conclusion: In adult patients without any clinical manifestations or favorable imaging findings for low-stage renal cell carcinoma, the diagnosis of Wilms' tumor should be taken into consideration.
RESUMO
AIM: To investigate the effects and mechanism of decorin( DCN) on the proliferation of HuH7 hepatoma carcinoma cell line in vitro. METHODS: Hepatoma carcinoma cells was cultured with DCN in different concentration (0, 25, 50, 75, 100, 125, 150, 200 microg/L) for different time(12, 24, 48, 72 h and 2 weeks). Cell activities were studied by MTT and clone test. The changes of cell cycle and apoptosis were analyzed by Flow cytometry. RESULTS: The proliferation of HuH7 cells could be inhibited by DCN in vitro and the inhibition effect was the time and dose dependent relationship. DCN could block cell cycle at G(1); phase. Apoptosis of hepatocarcinoma cells could be efficiently induced by DCN in a time/dose-dependent manner. CONCLUSION: DCN may be a negative regulatory protein inhibiting hepatoma carcinoma cell proliferation through inhibiting cell cycle and inducing apoptosis of cell in vitro.