切换至 "中华医学电子期刊资源库"

中华肺部疾病杂志(电子版) ›› 2017, Vol. 10 ›› Issue (03) : 257 -262. doi: 10.3877/cma.j.issn.1674-6902.2017.03.003

所属专题: 文献

论著

人端粒酶逆转录酶抗原HLA-A0201限制性CTL表位预测及鉴定
袁竞妍1, 王宇2, 刘博轩1, 孟夏1, 孙瑞瑛1, 吕欣1, 李维1, 石婕1, 明宗娟1, 史红阳1, 杨拴盈1,()   
  1. 1. 710004,西安,西安交通大学第二附属医院呼吸内科
    2. 710004,西安,西安交通大学第二附属医院心脏外科
  • 收稿日期:2017-05-08 出版日期:2017-06-20
  • 通信作者: 杨拴盈
  • 基金资助:
    国家自然科学基金资助项目(81172234); 陕西省科技统筹创新工程计划项目(2014KTCL03-02); 中央高校基本科研业务费交叉重点项目(XKJC2015001)

Prediction and identification of HLA-A0201 restricted CTL epitopes derived from human telomerase reverse transcriptase antigen

Jingyan Yuan1, Yu Wang2, Boxuan Liu1, Xia Meng1, Ruiying Sun1, Xin Lyu1, Wei Li1, Jie Shi1, Zongjuan Ming1, Hongyang Shi1, Shuanying Yang1,()   

  1. 1. Department of Respiratory Medicine, the second affiliated hospital, Xi′an Jiaotong University, Xi′an 710004, China
    2. Department of cardiac surgical, the second affiliated hospital, Xi′an Jiaotong University, Xi′an 710004, China
  • Received:2017-05-08 Published:2017-06-20
  • Corresponding author: Shuanying Yang
  • About author:
    Corresponding author: Yang Shuanying, Email:
引用本文:

袁竞妍, 王宇, 刘博轩, 孟夏, 孙瑞瑛, 吕欣, 李维, 石婕, 明宗娟, 史红阳, 杨拴盈. 人端粒酶逆转录酶抗原HLA-A0201限制性CTL表位预测及鉴定[J]. 中华肺部疾病杂志(电子版), 2017, 10(03): 257-262.

Jingyan Yuan, Yu Wang, Boxuan Liu, Xia Meng, Ruiying Sun, Xin Lyu, Wei Li, Jie Shi, Zongjuan Ming, Hongyang Shi, Shuanying Yang. Prediction and identification of HLA-A0201 restricted CTL epitopes derived from human telomerase reverse transcriptase antigen[J]. Chinese Journal of Lung Diseases(Electronic Edition), 2017, 10(03): 257-262.

目的

应用生物信息学方法对人端粒酶逆转录酶(hTERT)HLA-A2限制性细胞毒性T细胞(CTL)表位进行预测和鉴定,寻找诱导机体特异性杀伤肺癌肿瘤细胞的抗原表位。

方法

应用生物信息学软件BIMAS、SYFPEITHI对hTERT蛋白进行HLA-A0201限制性CTL抗原表位预测,筛选优势表位;应用肽亲和力实验、乳酸脱氢酶(LDH)释放实验及人干扰素γ(IFN-γ)ELISPOT实验验证表位,筛选出激发机体产生特异性免疫反应的表位。

结果

生物信息学软件筛选出优势表位为:ILAKFLHWL、ELLRSFFYV及ILSTLLCSL;肽亲和力实验得到优势表位荧光系数(FI)为:ILAKFLHWL0.67、ELLRSFFYV0.66及ILSTLLCSL0.90;LDH释放实验显示ILAKFLHWL所诱导CTLs的杀伤率明显高于其它各表位,也明显高于阴性表位,差异均具有统计学意义(P<0.05);人IFN-γ ELISPOT实验证明ILAKFLHWL所诱导的CTLs产生的IFN-γ斑点数多于其他表位,差异具有统计学意义(P<0.05)。

结论

ILAKFLHWL的免疫原性强,可用于后续制备肺癌多肽疫苗。

Objective

HLA-A0201 restricted epitopes were screened for the hTERT protein, and the dominant epitopes were obtained. Then the immunogenicity of the dominant epitopes were detected, finally 1-2 stronger epitopes were acquired which could induced stronger immune response.

Method

applied bioinformatics software BIMAS and SYFPEITHI to predict hTERT protein HLA-A0201 restricted CTL epitopes. Then screened dominant epitopes according to the score of two kinds of software. Next, applied peptide affinity experiment, lactate dehydrogenase(LDH) release assay as well as human interfron gamma(IFN-γ) ELISPOT epitope screening experiments to veriify dominant epitopes. Finally, acquired the epitopes which had ability to elicit stronger immune respons.

Results

Comprehensive analysis of SYFPEITHI software and BIMAS software for HLA-A0201 restricted CTL antigen epitope prediction of hTERT protein showed that 3 peptides were better than others. They were ILAKFLHWL, ELLRSFFYV and ILSTLLCSL. The result of peptide affinty experiment showed that the fluorescence index(FI) of each peptide was ILAKFLHWL 0.67, ELLRSFFYV 0.66 and ILSTLLCSL 0.90; The result of LDH releasing assay showed that the killing rate of ILAKFLHWL was significantly higher than other peptides and negative peptide(P<0.05); The result of human IFN-γ ELISPOT test showed that the number of spots elicited by ILAKFLHWL epitope was significantly higher than other epitopes(P<0.05).

Conclusions

The PBMCs cells induced by epitope ILAKFLHWL had a most significant killing effect. The epitope ILAKFLHWL could be used to make lung cancer poly-peptide vaccine.

表1 BIMAS软件预测hTERT CTL天然表位得分表
表2 SYFPEITHI软件预测hTERT CTL天然表位得分表
表3 各实验肽荧光系数
图1 LDH释放实验结果
图2 CTL分泌的IFN-γ斑点数;注:*实验组和抗体封闭组比较,P<0.05;#肽P1及肽P2的实验组和肽P3组、阴性组比较,P<0.05;
表4 CTL分泌的IFN-γ斑点数(单位:个)
1
钱桂生. 肺癌不同病理类型发病率的变化情况及其原因[J/CD]. 中华肺部疾病杂志(电子版) , 2011, 4(1): 1-6.
2
Torre LA, Bray F, Siegel RL, et al. Global cancer statistics, 2012[J]. CA Cancer J Clin, 2015, 65(2): 87-108.
3
Wu YL, Park K, Soo RA, et al. INSPIRE: A phase Ⅲ study of the BLP25 liposome vaccine (L-BLP25) in Asian patients with unresectable stage Ⅲ non-small cell lung cancer[J]. BMC Cancer, 2011, 11(1): 430.
4
Neninger Vinageras E, de la Torre A, Osorio Rodríguez M, et al. Phase Ⅱ randomized controlled trial of an epidermal growth factor vaccine in advanced non-small-cell lung cancer[J]. J Clin Oncol, 2008, 26(9): 1452-1458.
5
Inderbergsuso EM, Trachsel S, Lislerud K, et al. Widespread CD4+ T-cell reactivity to novel hTERT epitopes following vaccination of cancer patients with a single hTERT peptide GV1001[J]. 2012, 1(5): 670-686.
6
Mizukoshi E, Nakagawa H, Kitahara M, et al. Immunological features of T cells induced by human telomerase reverse transcriptase-derived peptides in patients with hepatocellular carcinoma[J]. Cancer Lett, 2015, 364(2): 98-105.
7
Podlevsky JD, Chen JJ. It all comes together at the ends: Telomerase structure, function, and biogenesis[J]. Mutat Res, 2012, 730(1-2): 3-11.
8
Gladych M, Wojtyla A, Rubis B. Human telomerase expression regulation[J]. Biochem Cell Biol, 2011, 89(4): 359-376.
9
Yu ST, Chen L, Wang HJ, et al. hTERT promotes the invasion of telomerase-negative tumor cells in vitro[J]. Lnt J Oncol, 2009, 35(2): 329-336.
10
Xu Y, He K, Goldkorn A. Telomerase targeted therapy in cancer and cancer stem cells[J]. Clin Adv Hematol Oncol, 2011, 9(6): 442-455.
11
Dalgleish AG, Whelan MA. Cancer vaccines as a therapeutic modality:the long trek[J]. Cancer Immunol Immunother, 2006, 55(8): 1025-1032.
12
陈陵,杨仕明,蔡永国. 针对端粒酶蛋白催化亚单位的肿瘤免疫治疗研究[J]. 世界华人消化杂志,2005, 13(4): 28-533.
13
Sette A, Vitiello A, Reherman B, et al. The relationship between class I binding affinity and immunogenicity of potential cytotoxic T cell epitopes[J]. J Immunol, 1994, 153(12): 5586-5592.
14
赵建强,何爱丽,张王刚,等. 白血病相关抗原MLAA-34HLA-A2+限制性CTL表位的预测及鉴定[J]. 西安交通大学学报:医学版,2011, 32(4): 424-428.
15
杨拴盈,孟夏,王薇. 多靶点酪氨酸激酶抑制剂在晚期非小细胞肺癌治疗中的是与非[J/CD]. 中华肺部疾病杂志(电子版), 2015, 8(6): 665-673.
[1] 赵阳, 肖迎聪, 巨艳, 党晓智, 蔡林利, 薛文欣, 李洋, 肖瑶, 郭妤绮, 宋宏萍. 自动乳腺超声联合免疫组化早期预测乳腺癌新辅助化疗病理完全缓解的临床价值[J]. 中华医学超声杂志(电子版), 2024, 21(04): 361-369.
[2] 汤宏涛, 何坤. 中晚期肝细胞癌介入治疗的进展及前景[J]. 中华普通外科学文献(电子版), 2024, 18(04): 305-308.
[3] 梁孟杰, 朱欢欢, 王行舟, 江航, 艾世超, 孙锋, 宋鹏, 王萌, 刘颂, 夏雪峰, 杜峻峰, 傅双, 陆晓峰, 沈晓菲, 管文贤. 联合免疫治疗的胃癌转化治疗患者预后及术后并发症分析[J]. 中华普外科手术学杂志(电子版), 2024, 18(06): 619-623.
[4] 张志兆, 王睿, 郜苹苹, 王成方, 王成, 齐晓伟. DNMT3B与乳腺癌预后的关系及其生物学机制[J]. 中华普外科手术学杂志(电子版), 2024, 18(06): 624-629.
[5] 赖全友, 高远, 汪建林, 屈士斌, 魏丹, 彭伟. 三维重建技术结合腹腔镜精准肝切除术对肝癌患者术后CD4+、CD8+及免疫球蛋白水平的影响[J]. 中华普外科手术学杂志(电子版), 2024, 18(06): 651-654.
[6] 吴伟宙, 王琼仁, 詹雄宇, 郑明星, 李亚县. 广东省医学会泌尿外科疑难病例多学科会诊(第16期)——左肾肉瘤样癌[J]. 中华腔镜泌尿外科杂志(电子版), 2024, 18(05): 525-529.
[7] 胡思平, 熊性宇, 徐航, 杨璐. 衰老相关分泌表型因子在前列腺癌发生发展中的作用机制[J]. 中华腔镜泌尿外科杂志(电子版), 2024, 18(05): 425-434.
[8] 李勇, 彭天明, 王倩倩, 陈育纯, 蒲小勇, 刘久敏. 基于失巢凋亡相关基因的膀胱癌预后模型构建及分析[J]. 中华腔镜泌尿外科杂志(电子版), 2024, 18(04): 331-339.
[9] 李飞, 郑灶松, 吴芃, 谭万龙. 广东省医学会泌尿外科疑难病例多学科会诊(第16期)——延胡索酸水合酶缺陷型晚期肾细胞癌[J]. 中华腔镜泌尿外科杂志(电子版), 2024, 18(04): 410-414.
[10] 魏妙艳, 徐近. 合并远处转移胰腺癌系统性治疗的梳理和展望[J]. 中华肝脏外科手术学电子杂志, 2024, 13(05): 644-650.
[11] 张英信, 林婷, 张剑文. 构建靶向HLA-A2且表达PD-L1的CAR-Treg细胞及验证其对CD4+T细胞抑制作用[J]. 中华肝脏外科手术学电子杂志, 2024, 13(05): 719-728.
[12] 张晓青, 唐雯. 基于临床化验指标重新计算的生物标记物在预测腹膜透析患者预后中的作用研究进展[J]. 中华肾病研究电子杂志, 2024, 13(04): 213-218.
[13] 崔健, 夏青, 林云, 李光玲, 李心娜, 王位. 血小板与淋巴细胞比值、免疫球蛋白、心肌酶谱及心电图对中老年肝硬化患者病情及预后的影响[J]. 中华消化病与影像杂志(电子版), 2024, 14(05): 400-406.
[14] 田娜, 韩飞天. 基于CT平扫影像组学模型与系统免疫炎症指数预测急性胰腺炎复发模型的建立[J]. 中华消化病与影像杂志(电子版), 2024, 14(04): 355-359.
[15] 王昌前, 林婷婷, 宁雨露, 王颖杰, 谭文勇. 光免疫治疗在肿瘤领域的临床应用新进展[J]. 中华临床医师杂志(电子版), 2024, 18(06): 575-583.
阅读次数
全文


摘要