胃肠道间质瘤主要免疫表型及其与危险度分级和预后的关系
2018-01-21郭迎雪贾建宾聂双发李磊王韬费建东
郭迎雪 贾建宾 聂双发 李磊 王韬 费建东
[摘要] 目的 分析胃肠道间质瘤(GIST)主要免疫表型及其与危险度分级和预后的关系。 方法 选取2015年4月~2017年4月河北北方学院附属第一医院收治的GIST患者65例,使用SABC法处理组织石蜡切片,分析CD34、CD117、SMA、DOG1、Ki-67、S-100及Desmin的表达情况,并对患者进行随访。 结果 患者CD117、DOG1、S-100、Desmin阳性率分别为96.9%、100.0%、6.2%、4.6%;CD34、SMA、Ki-67阳性率分别为89.2%、29.2%、29.2%;CD34的阳性表达与核分裂象、危险度分级及肿瘤大小无相关性(P > 0.05);SMA的阳性表达与核分裂象、危险度分级及肿瘤大小无相关性(P > 0.05);Ki-67表达量与核分裂数、危险度分级及肿瘤大小均呈正相关(r = 0.715、0.418、0.397,P < 0.05);Ki-67阳性复发率为36.4%,死亡率为27.3%,Ki-67阴性复发率为6.9%,死亡率为3.4%,两组差异有统计学意义(P < 0.05)。 结论 诊断GIST时可联合CD34、CD117及DOG1,其具有较好的互补性,检测SMA、S-100及Desmin蛋白水平可提高临床诊断准确度,且结合Ki-67因素可有效评价GIST患者预后效果。
[关键词] 胃肠道间质瘤;免疫表型;危险度分级;预后;相关性
[中图分类号] R734.2 [文献标识码] A [文章编号] 1673-7210(2018)10(b)-0104-04
[Abstract] Objective To analyze gastrointestinal stromal tumors (GIST) immunophenotype and its relationship with risk classification and prognosis. Methods From April 2015 to April 2017, in the First Affiliated Hospital of Hebei North University, 65 GIST patients were selected. The tissue paraffin section were dealed with SABC method, the expression of CD34, CD117, SMA, DOG1, Ki-67, S-100 and Desmin were analyzed, patients were given follow-up. Results The positive rates of CD117, DOG1, S-100 and Desmin were 96.9%, 100.0%, 6.2% and 4.6%, respectively; the positive rates of CD34, SMA and Ki-67 were 89.2%, 29.2% and 29.2% respectively; the positive expression of CD34 was not correlated with mitotic phase, risk grade and tumor size (P > 0.05); the positive expression of SMA was not correlated with mitotic phase, risk phase and tumor size (P > 0.05); Ki-67 expression was positively correlated with mitotic number, risk grade and tumor size (r = 0.715, 0.418, 0.397, P < 0.05); Ki-67 positive recurrence rate was 36.4%, mortality rate was 27.3%, and Ki-67 negative recurrence rate was 6.9%, the mortality rate was 3.4%, and the differences between the two groups were statistically significant (P < 0.05). Conclusion When diagnosing GIST, it can be combined with CD34, CD117 and DOG1, which have better complementarity. Detecting the levels of SMA, S-100 and Desmin protein can improve the accuracy of clinical diagnosis. Combined with Ki-67 factors, the prognosis of patients with GIST can be evaluated effectively.
[Key words] Gastrointestinal stromal tumors; Immune phenotype; Risk classification; Prognosis; Correlation
在眾多胃肠道间叶源性肿瘤中,胃肠道间质瘤(GIST)是最为常见的肿瘤。患者分布年龄广泛,其中高发年龄为40~80岁,且男性病发率略高于女性。GIST的生物学行为极其复杂,是一种良恶性质较难诊断的肿瘤。虽然现阶段针对GIST的风险评估分级方案得以逐步完善,但尚无法准确评价其生物学行为。尽管部分案例采用手术方案将低复发风险病灶进行切除,但在术后仍发生病灶的复发甚至转移。有研究[1-2]指出,患者临床病理、预后情况及危险度分级与免疫组化表型密切相关。本研究旨在分析GIST与CD34、CD117、SMA、DOG1、Ki-67、S-100及Desmin等免疫表型的表达,探讨主要免疫表型与GIST的危险度分级与预后的相关性,实现患者预后情况有效评估及术后辅助治疗方案的合理有效选择。
1 资料与方法
1.1 一般资料
选择2015年4月~2017年4月河北北方学院附属第一医院(以下简称“我院”)收治的GIST患者65例,所有患者均临床资料完整。患者……
