The clinical features and prognosis of EBER negative extranodal natural killer/T-cell lymphoma
10.19401/j.cnki.1007-3639.2016.06.009
- VernacularTitle:EB病毒编码的小mRNA阴性结外NK/T细胞淋巴瘤的临床特征及预后分析
- Author:
Sisi JIA
;
Feifei NAN
;
Sucai LI
;
Jingyu CAO
;
Guannan WANG
;
Mingzhi ZHANG
;
Lei ZHANG
- Publication Type:Journal Article
- Keywords:
Extranodal NK/T-cell lymphoma;
EB virus-encoded small RNA negative;
Clinical features;
Prog-nosis
- From:
China Oncology
2016;26(6):533-537
- CountryChina
- Language:Chinese
-
Abstract:
Background and purpose:Extranodal natural killer/T-cell lymphoma (ENKTL) is a form of non-Hodgkin’s lymphoma. The ENKTL incidence in China is much higher than that in the Western countries. The disease is highly malignant, not sensitive to chemotherapy, has short survival period and poor prognosis. Epstein-Barr virus (EBV) infection has close relationship with the development of the disease. However, there are still a few patients without EBV infection. This study aimed to discuss the clinical features and prognosis of EBV-encoded small RNA (EBER) in situ hybridization negative ENKTL.Methods:From Aug. 2011 to Oct. 2015, 326 cases were diagnosed with ENKTL from the First Affliated Hospital of Zhengzhou University. The expression of EBER was detected by in situ hy-bridization technique. The clinical pathological characteristics and prognosis of EBER-negative patients were analyzed. Results:In 326 patients with ENKTL, the negative rate of EBER was 2.45% (8/326). In 8 EBER-negative patients, the median survival time was 17 months. The log-rank test revealed that there was a signiifcant difference between EBER-negative and EBER-positive curves (χ2=6.407,P=0.011). Multivariate Cox proportional hazards regression analysis showed that in EBER-negative ENKTL, only lactate dehydrogenase (LDH) predicted survival time (P=0.008). EBV-DNA copy number in plasma was not signiifcantly correlated with survival time (P>0.05).Conclusion:The inci-dence of EBER-negative ENKTL is low. Patients with EBER-negative ENKTL have poorer prognosis than EBER-posi-tive patients. Elevated LDH may be a factor indicating poor prognosis.
