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中华细胞与干细胞杂志(电子版) ›› 2024, Vol. 14 ›› Issue (06) : 321 -327. doi: 10.3877/cma.j.issn.2095-1221.2024.06.001

论著

Her2/Hes1在肠型胃癌Correa级联反应3个病理阶段中的表达及意义
刘先勇1,(), 秦东梅2, 张若梅1, 李俊娇1, 孟春芹1, 邬明歆1, 王玉红1, 赵新鲜1, 徐瑞联1, 洪文文1, 马玲1, 仇玮2, 周宇3   
  1. 1.211100 南京,南京医科大学附属江宁医院中西医结合科
    2.211100 南京,南京医科大学附属江宁医院病理科
    3.211100 南京,南京医科大学附属江宁医院中心实验室
  • 收稿日期:2024-08-16 出版日期:2024-12-01
  • 通信作者: 刘先勇
  • 基金资助:
    南京市卫生科技发展专项资金项目 (YKK22225)

Expression and significance of Her2/Hes1 in three pathological stages of Correa cascade in intestinal gastric cancer

Xianyong Liu1,(), Dongmei Qin2, Ruomei Zhang1, Junjiao Li1, Chunqin Meng1, Mingxin Wu1, Yuhong Wang1, Xinxian Zhao1, Ruilian Xv1, Wenwen Hong1, Ling Ma1, Wei Qiu2, Yu Zhou3   

  1. 1.Integrated TCM & Western Medicine Department,Jiangning Hospital, Nanjing Medical University, Nanjing 211100, China
    2.Department of Pathology,Jiangning Hospital, Nanjing Medical University, Nanjing 211100, China
    3.Central Laboratory, Jiangning Hospital, Nanjing Medical University, Nanjing 211100, China
  • Received:2024-08-16 Published:2024-12-01
  • Corresponding author: Xianyong Liu
引用本文:

刘先勇, 秦东梅, 张若梅, 李俊娇, 孟春芹, 邬明歆, 王玉红, 赵新鲜, 徐瑞联, 洪文文, 马玲, 仇玮, 周宇. Her2/Hes1在肠型胃癌Correa级联反应3个病理阶段中的表达及意义[J/OL]. 中华细胞与干细胞杂志(电子版), 2024, 14(06): 321-327.

Xianyong Liu, Dongmei Qin, Ruomei Zhang, Junjiao Li, Chunqin Meng, Mingxin Wu, Yuhong Wang, Xinxian Zhao, Ruilian Xv, Wenwen Hong, Ling Ma, Wei Qiu, Yu Zhou. Expression and significance of Her2/Hes1 in three pathological stages of Correa cascade in intestinal gastric cancer[J/OL]. Chinese Journal of Cell and Stem Cell(Electronic Edition), 2024, 14(06): 321-327.

目的

探讨人表皮生长因子受体2 (Her2)和Split多毛增强子1 (Hes1)在Correa级联反应慢性浅表性胃炎 (CSG)-肠上皮化生 (IM)-肠型胃癌 (IGC)中的表达及IGC发病的分子机制。

方法

运用免疫组织化学 (IHC)法检测30例CSG、41例IM以及135例IGC标本中Her2及Hes1蛋白的表达水平;运用Western blot检测人胃黏膜上皮细胞GES-1、人IGC细胞株NCl-N87及MKN74中蛋白的表达水平;观察CSG胃腺体中Her2及Hes1蛋白的分布位置,比较它们在胃腺体小凹、峡部、颈部、基底部、IM、IGC及不同细胞株中表达不同。多组间均值比较采用单因素方差分析,事后两两比较采用LSD法进行分析。两组中位数比较采用Mann- Whitney U检验,多组中位数比较采用Kruskal-Wallis (KW)H检验,并采用Bonferroni校正,相关性统计采用Spearman秩分析。

结果

IHC法检测结果显示,与小凹比较,峡部、颈部、基底部、IM及IGC的Her2 (+++)表达降低[1 (3.3 %),0 (0.0 %),0 (0.0 %),4 (9.8 %),10 (7.4%)比14 (46.7%);P均 < 0.05];峡部与IM中Her2的表达居中,均高于颈部、基底部及IGC (P < 0.001);颈部、基底部及IGC中Her2的表达最弱,三者之间比较差异无统计学意义(P > 0.05)。与小凹比较,峡部、颈部、基底部、IM及IGC的Hes1表达 (++)升高[9 (30.0%),4 (13.3%),21 (51.2%),39 (28.9%)比0 (0.0%);P均< 0.05];基底部中Hes1的表达最强,高于峡部、颈部、IM及IGC (P < 0.01);IM与IGC中Hes1的表达分别强于峡部与颈部 (P <0.05);IM与IGC、峡部与颈部中Hes1的表达差异无统计学意义 (P > 0.05)。Her2/Hes1在小凹、峡部、颈部、基底部、IM及IGC中的表达均呈负相关 (rs = - 0.794,rs = - 0.300,rs = - 0.834,rs = - 0.921,rs = - 0.258,rs = - 0.528,P 均< 0.05)。Western blot检测结果显示,Her2/Hes1在GES- 1、NCl-N87及MKN74中的表达均呈负相关 (rs = - 0.776,rs = - 0.671,rs = - 0.614,P 均<0.05)。

结论

Correa级联反应CSG到IM最终发展至IGC进程中,Her2与Hes1蛋白呈负相关表达;与小凹比较,Her2随病程进展表达逐渐减少,Hes1的表达适度上调。

Objective

To investigate the expression of human epidermal growth factor receptor 2 (Her2) and Split hairy enhancer 1 (Hes1) among chronic superficial gastritis (CSG)-intestinal metaplasia (IM)-intestinal type gastric cancer (IGC) in Correa cascade, exploring the molecular mechanism of IGC pathogenesis.

Methods

Immunohistochemistry (IHC) was used to detect the expression levels of Her2 and Hes1 proteins in 30 CSG, 41 IM, and 135 IGC specimens.Western blot was used to detect the expression levels of these two proteins in the gastric epithelial cells GES-1, human IGC cell lines NCl-N87, and MKN74. The spatial location information of Her2 and Hes1 proteins in CSG gastric gland was observed, their different expressions in the gastric pit,isthmus, neck, basal regions, IM, IGC, and different cell lines were compared One-way analysis of variance was used for comparison of means among multiple groups, and LSD t test was used for post hoc pairwise comparisons. Mann-Whitney U test was used to compare the medians of two groups, and Kruskal-Wallis (KW) H test was used to compare the medians of multiple groups with Bonferroni correction. Spearman rank analysis was used for correlation statistics.

Results

IHC results showed that the expression of Her2 (+++) in the isthmus, neck, basal region, IM and IGC was lower than that in the pit [1(3.3 %),0(0.0 %),0(0.0 %),4(9.8 %),10(7.4 %) vs 14(46.7 %);all P < 0.05].The expressions of Her2 in the isthmus and IM was moderate, both higher than that in the neck, base,and IGC (P < 0.001). The expression of Her2 was the weakest in the neck, base, and IGC, and there was no significant difference among them (P > 0.05). The expression of Hes1 (++) in the isthmus,neck, basal region, IM and IGC was higher than that in the pit [9(30.0 %),4(13.3 %),21(51.2 %),39(28.9 %)比0(0.0 %); all P < 0.05]. The expression of Hes1 is strongest in the basal region,higher than that in the isthmus, neck, IM and IGC (P < 0.001). The expression of Hes1 in IM and IGC was stronger than that in the isthmus and neck, respectively (P < 0.05). There was no significant difference of the expression of Hes1 between IM and IGC, and between isthmus and neck (P > 0.05).The expression of Her2/Hes1 was significantly negatively correlated in the pit, isthmus, neck, basal region, IM, and IGC (rs = - 0.794, rs = - 0.300, rs = - 0.834,rs = - 0.921, rs = - 0.258, rs = - 0.528,all P < 0.05). Western blot results revealed that the expression of Her2/Hes1 was significantly negatively correlated in GES-1, NCl-N87 and MKN74 (rs = - 0.776, rs = - 0.671, rs = - 0.614, all P < 0.05).

Conclusions

In the Correa cascade from CSG to IM, eventually progressing to IGC,Her2 and Hes1 proteins exhibited a negative correlation. Compared with the pit, Her2 expression was gradually decreased with the progression of the disease, while Hes1 expression was moderately upregulated.

图1 IHC法检测Her2/Hes1及Ki67在胃腺体中的表达 (×100) 注:A为小凹,B为峡部,C为颈部,D为基底部,Her2有促进小凹上皮分化的作用,强烈表达的Her2没有促进小凹上皮增殖,但却下调了Hes1表达,促进峡部干细胞向小凹上皮细胞分化
表1 Her2/Hes1在胃腺体、IM及IGC中的表达[n (%)]
图2 IHC法检测Her2/Hes1在胃腺体及IM中的表达 注:为同一张病理标本不同层面,A区域为CSG胃腺体峡部增殖区,Her2/Hes1均有表达;B区域为IM发生区,Her2/Hes1均阳性表达在该区域
图3 生物显微镜下观察Her2及Hes1在IM中的表达(×100) 注:a图为Her2,b图为Hes1,空泡状的结构是杯状细胞标识
图4 IHC法检测IGC中Her2/Hes1的表达 (×100)
表2 Western blot检测不同细胞株中Her2/Hes1的表达(
图5 Western blot检测GES1、NCI-N87和MKN74中Her2/Hes1的表达 注:与GES-1比较,aP < 0.001;与NCI-N87比较,bP < 0.001
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