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1.400042 重庆,陆军特色医学中心乳腺甲状腺外科
2.400038 重庆,陆军军医大学(第三军医大学)军事预防医学系:毒理学研究所
3.400038 重庆,陆军军医大学(第三军医大学)军事预防医学系:军队环境卫生学教研室
[徐琰,E-mail:xy931@163.comXU Yan, E-mail: xy931@163.com
收稿:2021-12-20,
修回:2022-03-15,
纸质出版:2022-07-30
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张哲, 樊俊, 刘文斌, 等. 跨膜蛋白196对乳腺癌迁移及侵袭能力的影响[J]. 陆军军医大学学报, 2022,44(14):1455-1465.
Zhe ZHANG, Jun FAN, Wenbin LIU, et al. Effect of transmembrane protein 196 on migration and invasion of breast cancer[J]. Journal of Army Medical University, 2022, 44(14): 1455-1465.
张哲, 樊俊, 刘文斌, 等. 跨膜蛋白196对乳腺癌迁移及侵袭能力的影响[J]. 陆军军医大学学报, 2022,44(14):1455-1465. DOI: 10.16016/j.2097-0927.202112168.
Zhe ZHANG, Jun FAN, Wenbin LIU, et al. Effect of transmembrane protein 196 on migration and invasion of breast cancer[J]. Journal of Army Medical University, 2022, 44(14): 1455-1465. DOI: 10.16016/j.2097-0927.202112168.
目的
2
研究跨膜蛋白196(transmembrane protein 196,
TMEM
196)对乳腺癌细胞迁移及侵袭能力的影响。
方法
2
研究采用癌症基因组图谱(the cancer genome atlas
TCGA)和Oncomine数据库分析
TMEM
196在乳腺癌中的mRNA表达。通过实时定量-聚合酶链反应(quantitative real time-polymerase chain reaction
RT-qPCR)检测
TMEM
196在乳腺癌细胞中的表达,利用Kaplan-Meier数据库分析
TMEM
196对乳腺癌患者预后的影响;采用组织芯片分析
TMEM
196的蛋白水平和预后作用,该队列包含70例癌旁样本和160例浸润性乳腺癌样本,年龄(53.61±13.13)岁,在2001年1月至2004年8月接受手术切除,随访时间2~150个月;通过细胞增殖、划痕愈合和Transwell实验研究
TMEM
196对乳腺癌细胞增殖、迁移及侵袭能力的影响;Western blot检测
TMEM
196对β-连环蛋白(
β
-
catenin
)和基质金属蛋白酶7(matrix metalloproteinase 7,
MMP
7)表达的影响。
结果
2
TMEM
196的mRNA水平和蛋白水平在乳腺癌中均显著降低(
P
<
0.05),在三阴性乳腺癌(triple negative breast cance
r,TNBC)细胞株MDA-MB-231和TNBC组织中最明显(
P
<
0.05),低表达的
TMEM
196和较差的总体生存率(overall survival,OS)有关(
HR
=0.524,95%
CI
: 0.293~0.936,
P
=0.040);过表达
TMEM
196之后能够显著抑制乳腺癌细胞的增殖、迁移和侵袭(
P
<
0.05),而干扰
TMEM
196的表达后,能够显著增强细胞的增殖、迁移和侵袭(
P
<
0.05);Western blot提示
TMEM
196能够抑制
β
-
catenin
/
MMP
7信号通路从而降低乳腺癌细胞的运动能力(
P
<
0.05),加入
β
-
catenin
抑制剂后能够消除干扰
TMEM
196后所导致的促肿瘤作用(
P
<
0.05)。
结论
2
TMEM
196通过调节
β
-
catenin
/
MMP
7信号通路抑制乳腺癌细胞的迁移和侵袭。
Objective
2
To investigate the effect of transmembrane protein 196 (
TMEM
196) on the migration and invasion of breast cancer cells.
Methods
2
The Cancer Genome Atlas (TCGA) and Oncomine database were used to analyze the mRNA expression of
TMEM
196 in breast cancer. The expression of
TMEM
196 in breast cancer cells was detected by quantitative real time-polymerase chain reaction (RT-qPCR). Kaplan-Meier database was employed to analyze the effect of
TMEM
196 on the prognosis of breast cancer patients. The protein level and prognostic effect of
TMEM
196 were analyzed by tissue microarray. The cohort included 70 paracancerous samples and 160 invasive breast cancer samples from the patients (53.61±13.13 years old) undergoing surgical resection from January 2001 to August 2004
with a follow-up period of 2 to 150 months. Cell proliferation experiment
scratch healing test and Transwell assay were performed to determine the effect of
TMEM
196 on the proliferation
migration and invasion of breast cancer cells.
Western blot assay was used to explore the regulation of
TMEM
196 on the expression of
β
-
catenin
and matrix metalloproteinases 7 (
MMP
7).
Results
2
The mRNA and protein levels of
TMEM
196 were significantly decreased in breast cancer (
P
<
0.05)
and notably
this phenomenon was most obvious in triple negative breast cancer (TNBC) cell line MDA-MB-231 and TNBC tissues (
P
<
0.05). Lower expression of
TMEM
196 was associated with poor overall survival (OS) (
HR
=0.524
95%
CI
: 0.293~0.936
P
=0.040). In addition
overexpression of
TMEM
196 could significantly inhibit the proliferation
migration and invasion of breast cancer cells(
P
<
0.05)
while its knockdown can significantly enhances the above abilities(
P
<
0.05). The results of Western blot assay indicated that
TMEM
196 inhibited the
β
-
catenin
/
MMP
7 signaling pathway and reduced the motility of breast cancer cells(
P
<
0.05). On the contrary
the tumor-promoting effect which caused by knockdown of
TMEM
196 could be eliminated after adding
β
-
catenin
inhibitor(
P
<
0.05).
Conclusion
2
TMEM
196 inhibits the migration and invasion of breast cancer cells by regulating the
β
-
catenin
/
MMP
7 signaling pathway.
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