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J Hepatology:肿瘤内三级淋巴结构与肝细胞癌早期复发的低风险有关

2018-12-17 MedSci MedSci原创

三级淋巴结构(TLS)为局部组织提供微妙的微环境,它可以为抗肿瘤细胞和体液免疫应答提供场所。在迄今为止研究的大多数实体瘤中,TLS与临床结果的改善是密切相关的。然而,它们在肝细胞癌(HCC)中的作用存在争议,因为它们最近已被证明可促进非肿瘤肝脏中恶性肝细胞祖细胞的生长。因此,本项研究旨在就此问题进行相关研究。

背景与目的
三级淋巴结构(TLS)为局部组织提供微妙的微环境,它可以为抗肿瘤细胞和体液免疫应答提供场所。在迄今为止研究的大多数实体瘤中,TLS与临床结果的改善是密切相关的。然而,它们在肝细胞癌(HCC)中的作用存在争议,因为它们最近已被证明可促进非肿瘤肝脏中恶性肝细胞祖细胞的生长。因此,本项研究旨在就此问题进行相关研究。

方法
研究人员病理学回顾分析,纳入了通过手术切除治疗的273例HCC患者中肿瘤内和非肿瘤TLS的标本组织。通过使用公共数据集(LCI群组)进行基因表达谱的分析。

结果
研究人员通过病理学检查发现47%的肿瘤中存在TLSs,而淋巴样聚集体,原发性和继发性卵泡分别占26%,16%和5%。单变量和多变量分析显示肿瘤内TLS与早期复发风险显着相关(术后<2年,HR:0.46,p = 0.005)。有趣的是,复发风险也与TLS成熟程度有关(p= 0.01)。与肿瘤内TLS的存在相关的基因表达特征也与LCI群组中早期复发的较低风险独立相关。

结论
本项研究结果证明,肿瘤内TLS与HCC患者通过手术切除治疗的早期复发风险较低相关。因此,肿瘤内TLS可能反映了持续有效的抗肿瘤免疫力的存在。

原始出处:

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    2019-02-11 xjy02
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    2018-12-19 sodoo
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    2018-12-19 gwc384

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