Bcl-2、Ki-67和C-myc的表达与恶性淋巴瘤常规治疗后复发的关系

目的:研究Bcl-2、Ki-67和C-myc在恶性淋巴瘤(malignant lymphoma, ML)组织中的表达与常规化疗后复发的相关性.方法:采用免疫组织化学法检测65例行常规化疗的患者组织切片中Bcl-2、Ki-67和C-myc的表达.Bcl-2、Ki-67和C-myc不同表达患者的生存率统计采用Kaplan-Meier生存曲线和Log-rank检验.结果:Bcl-2表达与非霍奇金淋巴瘤(non-Hodgkin lymphoma,NHL)细胞来源有关,B细胞来源的NHL阳性率高于T细胞来源的NHL(P < 0.05),Ki-67、C-myc表达与NHL细胞来源、患者性别、年龄、临床分期和B症状等无关.C-myc的表达与常规化疗患者预后无关,Bcl-2阳性表达组和阴性表达组3年无病生存率分别为22.22%和55.56%,Ki-67阳性表达组和阴性表达组3年无病生存率分别为37.50%和61.54%,差异均有统计学意义(P < 0.05).结论:Bcl-2、Ki-67蛋白阳性表达的ML患者,常规化疗后易复发,应实施更加积极的治疗或造血干细胞移植.

The Relativity Between the Expression of Bcl-2,Ki-67, C-myc and Prognosis of Patients with Malignant Lymphoma

Objective: To study the relationship between the expressions of Bel -2, Ki -67, C -myc and prognosis in patients given chemotherapy for malignant lymphoma (ML). Methods: The expressions of Bel-2, Ki-67 and C-myc were measured by immunohistochemistry (IHC) in paraffin-embedded samples of 65 ML cases who received chemotherapy. The survival analysis was done by the Kaplan -Meier method and Log -rank test. Results: For patients with non -Hodgkin lymphoma (NHL) who received chemotherapy, the 3-year disease free survival (DFS) was 22.22% in Bcl-2(+) group compared with that of 55.56% in Bcl-2 (-) group. The difference of DFS was significant between the two groups. Meanwhile, for ML patients, the 3-year DFS was 37.50% in Ki-67(+) group, and 61.54% in Ki-67(-) group respectively(P < 0.05). Conclusion: The expressions of Bcl-2 and Ki-67 were closely related with relapse after chemotherapy in patients with ML. They were useful molecular makers for predicting the prognosis in patients with ML after chemotherapy.