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1.陆军军医大学(第三军医大学)第一附属医院普通外科,重庆
2.陆军特色医学中心(第三军医大学大坪医院),消化内科消化系统肿瘤精准防治重庆市重点实验室,重庆
钱锋,E-mail: 506038746@qq.com
收稿日期:2024-09-30,
修回日期:2025-01-19,
纸质出版日期:2025-03-15
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任志祥,刘佳佳,覃中毅,等.钙腔蛋白对胃癌迁移、侵袭及患者预后的影响[J].陆军军医大学学报,2025,47(05):435-442.DOI:10.16016/j.2097-0927.202409151.
REN Z X,LIU J J,QIN Z Y,et al.Effect of calumenin on metastasis and invasion of gastric cancer and prognosis of patients[J].J Army Med Univ,2025,47(05):435-442.DOI:10.16016/j.2097-0927.202409151.
任志祥,刘佳佳,覃中毅,等.钙腔蛋白对胃癌迁移、侵袭及患者预后的影响[J].陆军军医大学学报,2025,47(05):435-442.DOI:10.16016/j.2097-0927.202409151. DOI:
REN Z X,LIU J J,QIN Z Y,et al.Effect of calumenin on metastasis and invasion of gastric cancer and prognosis of patients[J].J Army Med Univ,2025,47(05):435-442.DOI:10.16016/j.2097-0927.202409151. DOI:
目的
2
探究钙腔蛋白(calumenin, CALU)在胃癌中的表达及其对胃癌迁移、侵袭的影响,并分析其与胃癌患者预后的关系。
方法
2
利用癌症基因组图谱(the cancer genome atlas,TCGA)数据库分析CALU在胃癌中的表达水平及其对患者预后的影响。 收集2018年1月至2022年12月在陆军军医大学第一附属医院普通外科进行胃部分切除术的189例胃癌患者的胃癌和癌旁组织样本102对。通过免疫组化实验检测CALU在胃癌和癌旁组织中的表达情况,并统计分析CALU表达与临床病理参数的关系。构建CALU敲低和过表达胃癌细胞株,通过Western blot以及RT-qPCR评估敲低及过表达效率。结合Transwell小室实验检测CALU对胃癌细胞的迁移、侵袭能力的影响。
结果
2
公共数据库结果分析发现CALU在胃癌组织中显著
高表达(
P
<
0.05),在95%置信区间下,CALU的表达水平与患者预后呈负相关(
P
<
0.05)。免疫组化结果发现相较于癌旁组织,CALU在胃癌组织中显著高表达(
P
<
0.01),其表达水平与浸润深度(
P
<
0.01)、淋巴结转移(
P
<
0.01)、TNM分期(
P
<
0.05)呈正相关,统计分析102例患者临床资料发现CALU的表达与TNM分期(
P=
0.021)、T分期(
P<
0.001)、N分期(
P=
0.028)显著相关。CALU敲低可以显著的抑制胃癌细胞的迁移、侵袭能力(
P
<
0.01),而过表达则获得相反的结果。
结论
2
CALU在胃癌组织中高表达并促进胃癌的迁移、侵袭,进而导致胃癌患者的不良预后。
Objective To investigate the expression of calumenin (CALU) in gastric cancer and its effect on metastasis and invasion of gastric cancer
and analyze its relationship with the prognosis of gastric cancer patients. Methods The Cancer Genome Atlas (TCGA) database was used to analyze the expression level of CALU in gastric cancer and its impact on patient prognosis. A total of 102 pairs of gastric cancer and paracancerous tissue samples were collected from 189 gastric cancer patients who underwent partial gastrectomy in First Affiliated Hospital of Army Medical University from January 2018 to December 2022. The expression of CALU in gastric cancer and paracancerous tissues was detected by immunohistochemical assay
and the relationship of its expression with clinicopathological parameters was statistically analyzed. After gastric cancer cells with CALU knockdown and overexpression were constructed
and the efficiencies of knockdown and overexpression were evaluated by Western blotting as well as RT-qPCR. Transwell assay was applied to determine the effect of CALU on the migration and invasion abilities of gastric cancer cells. Results Bioinformation analysis found that CALU was significantly highly expressed in gastric cancer tissues (
P
<
0.05)
and its expression level was negatively correlated with the prognosis of patients (
P
<
0.05). Immunohistochemical results showed that the
expression level of CALU was obviously highly in gastric cancer tissues than the paracancerous tissues (
P
<
0.01)
and its level was positively correlated with the depth of infiltration (
P
<
0.01)
lymph node metastasis (
P
<
0.01)
and TNM stage (
P
<
0.05). Statistical analysis revealed that the clinical data of 102 patients showed that CALU expression was positively correlated with the TNM stage (
P=
0.021) and T stage (
P
<
0.001) and N stage (
P=
0.028). CALU knockdown significantly inhibited the migration and invasion abilities of gastric cancer cells (
P
<
0.01)
while over-expression obtained the opposite results. Conclusion CALU is highly expressed in gastric cancer tissues and promotes metastasis and invasion of gastric cancer and thus leads to poor prognosis in patients.
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