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　　GNA13是一种与肿瘤增殖、浸润、转移和迁移相关的G蛋白。GNA13的基因组改变在滤泡性淋巴瘤（follicular lymphoma,FL)中较为常见。本研究采用组织芯片及免疫组化技术，检测了167例FL中GNA13的表达情况并评估其临床意义。其中26例GNA13阳性(15.6%)，141例GNA13阴性（84.4%)。与GNA13阴性组相比，GNA13阳性组病例的疾病早期进展（在2年内发现）发生率较高（P=0. 03)。而组织学分级、BCL2-IGH易位、免疫组化表型和滤泡性淋巴瘤国际预后指数等其他临床病理因素方面均无显著差异。此外，GNA13阳性病例的总生存期和无进展生存期均低于GNA13阴性病例（分别为P=0. 009和0.005)。在多变量分析中，GNAI3阳性是总生存期和无进展生存期的不良预后因素。因此，GNA13蛋白的表达是独立的预后因素，可能影响FL的疾病进展。

Am J Surg Pathol 2018;42:1466-1471

美国外科病理学杂志中文版2019年第二期摘要NO.8

(李晶晶  翻译  刘斌  审校）

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