抗肿瘤血管生成及其联合放射治疗在恶性肿瘤中的作用

 腺瘤性结肠息肉病（adenomatous polyposis coli,APC）基因是Wnt信号转导通路重要的抑癌基因，其启动子区域的异常甲基化可影响APC基因 mRNA的转录和APC蛋白的表达，导致Wnt信号传导通路异常。近年来对妇科肿瘤的多项研究中发现了APC基因启动子区域异常甲基化，并与肿瘤的发生发展有关。本文就APC基因启动子甲基化与妇科肿瘤的研究进展进行综述。

Analysis of histologic characteristics of inflammatory myofibroblastic tumor in urinary bladder

Objective To investigate the pathologic features, diagnosis and differential diagnosis of inflammatory myofibroblastic tumor (IMT) in urinary bladder. Methods It was retrospectively reviewed for the characters of pathologic features and immunohistochemistry type in 3 patients diagnosed IMT in urinary bladder. Results 3 patients including 1 female and 2 male were 15, 36 and 60 years old (mean age 37),respectively. All patients underwent partial cystectomy. All cases presented single or multiple, polypoid or nodular mass(es), ranging in size from 1.8 to 5.5 cm. Microscopically, the tumor cell grew in invasive pattern, and were spindled with prominent nucleoli. The lesions varied from highly myxoid to highly cellular lesions. The mitotic rates were invisible. AE1/AE3, CK18 and ALK were positive in IMT. Follow-up was available for 3 patients (2, 18 and 18 months, respectively). None developed recurrences or metastasis. Conclusion IMT in urinary bladder are rare tumors. IMT grows in invasive pattern, and are spindled with prominent nucleoli.The main differential diagnosis of IMT includes embryonal rhabdomyosarcoma in juvenile, sarcomatoid urothelial carcinoma and leiomyosarcoma in adult.