修回日期: 2008-12-14
接受日期: 2008-12-22
在线出版日期: 2009-01-28
目的: 了解基因Aurora-B在肝癌中的表达及其作为预测肝癌预后的新指标的可能性.
方法: 收集2001-2007年我院初治的肝癌患者标本80例, 病理证实均为肝细胞癌. 用免疫组化法检测患者标本中Aurora-B的表达, 分析Aurora-B的表达与肝癌患者年龄、性别、临床分期等的关系及其与预后的关系.
结果: Aurora-B在肝癌标本中的表达率为68.8%; 临床分期、肿瘤大小、肿瘤合并门静脉癌栓与Aurora-B表达阳性率的差异有统计学意义(χ2 = 99.9669, 20.8185, 28.5214, 均P<0.05). 80例根治性肝癌切除的病例中, Aurora-B表达与肝细胞癌1, 2年复发率和生存率之间有关(χ2 = 5.7702, 5.4257, 均P<0.05; χ2 = 11.8787, 10.4497, 均P<0.05).
结论: Aurora-B在肝癌组织中有一定程度表达, 其表达与肝癌临床分期及预后相关.
引文著录: 单人锋, 周福庆, 吴波, 肖国胜, 饶雪峰, 彭贵主. Aurora-B在肝癌组织中的表达及其意义. 世界华人消化杂志 2009; 17(3): 270-272
Revised: December 14, 2008
Accepted: December 22, 2008
Published online: January 28, 2009
AIM: To investigate the expression of Aurora-B in hepatocarcinoma and to assess its possibility as a new indicator for hepatocarcinoma prognosis.
METHODS: Samples from 80 pathologically comfirmed HCC patients were analyzed for Aurora-B expression using immunohistochemistry. The relationship between Aurora-B expression and clinical data including staging, gender, clinical stage, and prognosis were analyzed.
RESULTS: The Aurora-B expression rate was 68.8%. Significant difference was detected between Aurora-B expression and clinical staging, tumor size, tumor in complicated with portal tumor thrombus (χ2 = 99.9669, 20.8185, 28.5214, all P < 0.05). For 80 patients undergoing hepatectormy, Aurora-B expression was significantly related to 1-year, 2-year recurrent rate and survival rate (χ2 = 5.7702, 5.4257, all P < 0.05; χ2 = 11.8787, 10.4497, all P < 0.05).
CONCLUSION: Aurora-B is expressed at a high level in hepatocarcinoma. Its expression may be associated with the tumor stage and the prognosis of hepatocarcinoma patients.
- Citation: Shan RF, Zhou FQ, Wu B, Xiao GS, Rao XF, Peng GZ. Expression of Aurora-B in hepatocarcinoma and its clinical significance. Shijie Huaren Xiaohua Zazhi 2009; 17(3): 270-272
- URL: https://www.wjgnet.com/1009-3079/full/v17/i3/270.htm
- DOI: https://dx.doi.org/10.11569/wcjd.v17.i3.270
Aurora-B是一种中心体上的功能性激酶, 属于Aurora激酶家族成员, 己被证明是一种癌蛋白. 近年来研究显示, Aurora-B可广泛表达于人类各种肿瘤, 包括食管癌、胃癌、膀胱癌、结肠癌、胰腺癌、卵巢癌、乳腺癌等[1-4], 但目前国内未见Aurora-B在肝癌中表达与预后关系的报道. 本文探讨Aurora-B在肝癌中的表达情况, 结合随访资料, 了解其作为肝癌预后预测的新指标及肝癌治疗的分子靶点的可能性.
收集2001-2007年我院初治的肝癌患者标本共80例, 病理证实均为肝细胞癌. 其中男64例, 女16例; 年龄27-67(中位年龄43)岁. 临床分期按UICC(1997)分期, Ⅰ期7例, Ⅱ期18例, Ⅲ期50例, Ⅳ期5例; 均采用肝癌切除术+术中经肝动脉化疗导管植入术, 术后给予四次预防性化疗, 患者随访10-66 mo, 中位随访时间为36.6 mo. 另取癌旁1 cm的病理标本30例作为对照.
标本用40 g/L甲醛溶液固定, 常规石蜡病理切片, 脱蜡水化, 用高温高压进行抗原修复, PBS漂洗2 min, 置入30 mL/L H2O2 10 min, PBS漂洗5min, 共3次, 正常血清37℃孵育15 min, 加入一抗(Aurora-B, Santa Cruzs产品, 1/200)4℃冰箱孵育过夜, 用PBS漂洗5 min, 共3次, 加入二抗37℃孵育60 min, PBS漂洗5 min, 共3次, DAB显色, 苏木精复染细胞核, 中性树胶封片. 结果判断: 镜下观察胞核出现棕黄色颗粒的肿瘤细胞数>30%为阳性.
统计学处理 结果用SPSS11.0进行统计分析, Aurora-B表达与临床病理参数的关系及生存率和复发率采用χ2检验.
80例肝癌中55例Aurora-B表达阳性, 阳性率为68.8%; 30例肝癌旁组织2例Aurora-B表达阳性, 阳性率为6.67%(χ2 = 97.6885, P<0.001, 图1).
临床分期、肿瘤大小、肿瘤合并门静脉癌栓与Aurora-B表达阳性率的差异有统计学意义(P<0.05), 未发现Aurora-B表达阳性率与年龄、性别、AFP水平有关(表1).
分组 | Aurora-B | χ2 | P | |
表达 | 不表达 | |||
年龄(岁) | 0.05667 | >0.05 | ||
≥40 | 45 | 21 | ||
<40 | 10 | 4 | ||
性别 | 0.40299 | >0.05 | ||
男 | 45 | 19 | ||
女 | 10 | 6 | ||
AFP水平(μg/L) | 0.02518 | >0.05 | ||
升高 | 47 | 21 | ||
正常 | 8 | 4 | ||
合并门静脉癌栓 | 27 | 3 | 99.9669 | <0.05 |
无门静脉癌栓 | 3 | 47 | ||
肿瘤大小(cm) | 20.8185 | <0.05 | ||
>5 | 45 | 10 | ||
<5 | 10 | 15 | ||
肝癌分期 | 28.5214 | <0.05 | ||
Ⅰ期 | 2 | 5 | ||
Ⅱ期 | 5 | 13 | ||
Ⅲ期 | 43 | 7 | ||
Ⅳ期 | 5 | 0 |
80例根治性肝癌切除的病例中, Aurora-B表达与肝细胞癌复发率之间有关, Aurora-B表达阳性的患者术后1, 2年的复发率较表达阴性的患者明显升高(45.4% vs 16%, χ2 = 5.7702, 72.7% vs 32%, χ2 = 11.8787, 均P<0.05). 80例中Aurora-B的表达与肝细胞癌生存率之间存在密切关系. Aurora-B表达阳性的患者1年和2年的生存率较表达阴性的患者明显降低(76.3% vs 100%, χ2 = 5.4257, 45.4% vs 84%, χ2 = 10.4497, 均P<0.05).
哺乳动物细胞Aurora-B激酶家族迄今发现有3个成员: Aurora-A, Aurora-B及Aurora-C. 其中Aurora-B又称为染色质过客蛋白激酶, 是一种有丝分裂所必需的蛋白, 决定着细胞染色体的分离和胞质分裂. 改变染色体的数量(整倍体)是人类恶性肿瘤发生的主要原因, 有丝分裂过程控制的错误可导致细胞非整倍体的产生, 在恶性肿瘤发展中起促进作用[5-8].
目前认为人类一些恶性肿瘤如: 子宫内膜癌、肺癌、鼻咽癌等均与Aurora-B在组织中过度表达有关系[8-12], 但国内尚无关于肝癌方面的研究. 该项研究结合临床分析了Aurora-B在肝癌中的表达情况, 并对其与肝癌的预后及相关临床参数进行了分析. 结果显示Aurora-B在肝癌组织中的表达阳性率较癌旁织中的表达阳性率明显增高, 说明肝癌组织中Aurora-B表达更为活跃. 临床分期、肿瘤大小、肿瘤合并门静脉癌栓与Aurora-B表达阳性率的差异有统计学意义(P<0.05), 未发现Aurora-B表达阳性率与年龄、性别、AFP水平有关, 说明在越晚期的肝癌中Aurora-B表达越活跃, Aurora-B的表达能初步反映肿瘤的早晚程度. 在随访的研究中我们发现Aurora-B与肝癌的复发率及生存率存在一定关系, Aurora-B表达阳性的肝癌患者肿瘤的复发率较阴性为高, 而生存率则恰恰相反, 可能是分期影响预后. 只能说明表达强弱与预后相关.
通过研究我们初步推断, Aurora-B的检测可以作为肝癌的初步筛选指标, 并对于临床分期及术后患者预后的判断有一定的帮助, 但该指标的量化工作还需进一步研究.
改变染色体的数量(整倍体)是人类恶性肿瘤发生的主要原因, 有丝分裂过程控制的错误可导致细胞非整倍体的产生, 在恶性肿瘤发展中起促进作用, 近年来研究显示, Aurora-B可广泛表达于人类各种肿瘤, 包括食管癌、胃癌、膀胱癌、结肠癌、胰腺癌、卵巢癌、乳腺癌等, 但目前国内未见Aurora-B在肝癌中表达与预后关系的报道.
宋振顺, 教授, 中国人民解放军第四军医大学西京医院肝胆外科.
Aurora-B: 又称为染色质过客蛋白激酶, 是一种有丝分裂所必需的蛋白, 决定着细胞染色体的分离和胞质分裂.
本文选题尚可, 写作流畅, 参考文献引用较新, 但学术价值一般.
编辑:李军亮 电编:吴鹏朕
1. | Macarulla T, Ramos FJ, Tabernero J. Aurora kinase family: a new target for anticancer drug. Recent Patents Anticancer Drug Discov. 2008;3:114-122. [PubMed] |
2. | Katayama H, Brinkley WR, Sen S. The Aurora kinases: role in cell transformation and tumorigenesis. Cancer Metastasis Rev. 2003;22:451-464. [PubMed] [DOI] |
3. | Fu J, Bian M, Jiang Q, Zhang C. Roles of Aurora kinases in mitosis and tumorigenesis. Mol Cancer Res. 2007;5:1-10. [PubMed] [DOI] |
4. | Li JJ, Li SA. Mitotic kinases: the key to duplication, segregation, and cytokinesis errors, chromosomal instability, and oncogenesis. Pharmacol Ther. 2006;111:974-984. [PubMed] [DOI] |
5. | Venoux M, Basbous J, Berthenet C, Prigent C, Fernandez A, Lamb NJ, Rouquier S. ASAP is a novel substrate of the oncogenic mitotic kinase Aurora-A: phosphorylation on Ser625 is essential to spindle formation and mitosis. Hum Mol Genet. 2008;17:215-224. [PubMed] [DOI] |
6. | Naruganahalli KS, Lakshmanan M, Dastidar SG, Ray A. Therapeutic potential of Aurora kinase inhibitors in cancer. Curr Opin Investig Drugs. 2006;7:1044-1051. [PubMed] |
7. | Katzel JA, Mazumder A, Jagannath S, Vesole DH. Engraftment syndrome after hematopoietic stem cell transplantation in multiple myeloma. Clin Lymphoma Myeloma. 2006;7:151. [PubMed] |
8. | Warner SL, Bearss DJ, Han H, Von Hoff DD. Targeting Aurora-2 kinase in cancer. Mol Cancer Ther. 2003;2:589-595. [PubMed] |
9. | Mountzios G, Terpos E, Dimopoulos MA. Aurora kinases as targets for cancer therapy. Cancer Treat Rev. 2008;34:175-182. [PubMed] |
10. | Mortlock A, Keen NJ, Jung FH, Heron NM, Foote KM, Wilkinson R, Green S. Progress in the development of selective inhibitors of Aurora kinases. Curr Top Med Chem. 2005;5:199-213. [PubMed] [DOI] |
11. | Farmer JP, Lamba M, Lamba WR, Jordan DR, Gilberg S, Sengar DP, Bence-Bruckler I, Burns BF. Lymphoproliferative lesions of the lacrimal gland: clinicopathological, immunohistochemical and molecular genetic analysis. Can J Ophthalmol. 2005;40:151-160. [PubMed] |
12. | Ducat D, Zheng Y. Aurora kinases in spindle assembly and chromosome segregation. Exp Cell Res. 2004;301:60-67. [PubMed] [DOI] |