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- 吕跃主任医师
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医院:
中山大学附属肿瘤医院
科室:
血液肿瘤科
- 吕跃教授研究组发现新的弥漫性大 B 细胞淋巴瘤的预后因子
- 作者:吕跃|发布时间:2011-10-01|浏览量:940次
弥漫性大 B 细胞淋巴瘤( Diffuse large B-cell lymphoma, DLBCL )是最常见的非霍奇金淋巴瘤(NHL) ,约占全部 NHL 的 30%~40% 。采用CHOP方案化疗,可使50%的患者达到完全缓解,并且有将近35%的患者能够获得长期生存。法国 GELA 的一项随机对照研究表明,老年 DLBCL 应用 CHOP 方案加美罗华的疗效优于单纯化疗。R-CHOP 的近期疗效、无复发生存率和总生存率均优于 CHOP 方案, 5 年 EFS 分别为 47% 和 29%( P =0.0002) , 5 年 PFS 分别为 54% 和 30%( P =0.0001) , 5 年 DFS 分别为 66% 和 45%( P =0.00031) , 5 年总生存率分别为 58% 和 45% ( P =0.0073 ),两组毒性无显著差别。中山大学附属肿瘤医院血液肿瘤科吕跃
然而,仍有部分DLBCL患者对R-CHOP治疗反应不明显,预后较差。因此,如何在初诊时就能鉴别这些患者,进而采取更强的治疗方案,就成为了一个研究重点。中山大学肿瘤防治中心血液肿瘤科吕跃教授数年前发现,部分DLBCL患者外周血神经元特异性烯醇化酶(NSE)明显升高,并且在治疗有效后会降低,于是吕跃教授大胆假设:NSE是否与DLBCL患者的预后相关?自此,吕跃教授研究就对该课题展开研究。从2002年至2009年,共入组106名DLBCL患者。研究发现,54%的患者外周血NSE水平明显升高,并且与IPI评分、ann-arbor分期以及LDH水平显著相关(P<0.05),在治疗有效的患者中降低。经过中位随访37个月后,研究发现NSE升高组患者的5年OS显著差于NSE阴性患者组(P<0.05),经过分层分析发现,经R-CHOP治疗的患者中,NSE升高组与NSE正常组的5年OS率具有显著差异(P<0.01),经多因素回归分析发现,NSE升高是R-CHOP治疗患者组的一个预后不良因素。因此,研究得出结论:血清NSE水平可能是DLBCL疾病侵袭性的一个新的分子标志物,并且可能是美罗华时代的一个新的预后因子。
(该文章发表于国际著名杂志:Leukemia & Lymphoma. September 2011, Vol. 52, No. 9 , Pages 1697-1703)
Read More: http://informahealthcare.com/doi/abs/10.3109/10428194.2011.578187
英文摘要
Prognostic significance of neuron-specific enolase in patients with diffuse large B-cell lymphoma treated with rituximab-based immunochemotherapy
Abstract
The present study examined the clinical significance of serum neuron-specific enolase (NSE) in patients with diffuse large B-cell lymphoma (DLBCL). Serum NSE values were measured using a electrochemiluminescence assay in 106 patients and tissue NSE expression was examined using immunohistochemistry in 65 patients. Fifty-four percent of patients had a positive expression of serum NSE (>15.20 ng/mL), and cytoplasmic NSE was pathologically demonstrated in 26/65 cases, which showed a positive correlation with that of serum NSE expression. The serum NSE value was closely correlated with performance status, serum lactate dehydrogenase (LDH) level, International Prognostic Index (IPI) score, and Ann Arbor stage, and declined significantly in patients who responded to treatment. In the rituximab-immunochemotherapy group, there was a significant difference in the 5-year overall survival (OS) rate between the NSE-positive and -negative groups (93% vs. 44%, p = 0.001), and the serum NSE level was found to be an independent prognostic factor. Serum NSE may be a novel marker of disease aggressiveness as well as a prognostic factor for DLBCL in the era of rituximab.
Keywords
Diffuse large B-cell lymphoma, neuron-specific enolase, overall survival, rituximab, immunochemotherapy