Porphyromonas gingivalis promotes epithelial-mesenchymal transition of esophageal squamous cell carcinoma cells mediated by TGF-β/SMAD signaling via GARP
DOI:10.3872/j.issn.1007-385x.2024.08.004
- VernacularTitle:牙龈卟啉单胞菌通过GARP促进TGF-β/SMAD轴介导食管鳞状细胞癌细胞的上皮间质转化
- Author:
ZHANG Shenghua1
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YANG Jingyi1
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QI Chunhui1
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QIAO Liang2
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GAO Shegan1
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QI Yijun1
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Author Information
1. 1. State Key Laboratory of Esophageal Cancer Prevention &
2. Treatment, Henan Key Laboratory of Microbiome and Esophageal Cancer Prevention and Treatment
3. Henan Key Laboratory of Cancer Epigenetics
4. Cancer Hospital, the First Affiliated Hospital, College of Clinical Medicine of Henan University of Science and Technology, Luoyang 471003, Henan, China
5. 2. Department of Pathology, the First Affiliated Hospital of Henan University of Science and Technology, Luoyang 471003, Henan, China
- Publication Type:Journal Article
- Keywords:
食管鳞状细胞癌;牙龈卟啉单胞菌;糖蛋白A重复优势蛋白;TGF-β;SMAD;上皮间质转化
- From:
Chinese Journal of Cancer Biotherapy
2024;31(8):769-776
- CountryChina
- Language:Chinese
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Abstract:
[摘 要] 目的:阐明牙龈卟啉单胞菌(Pg)诱导食管鳞状细胞癌(ESCC)细胞发生上皮间质转化(EMT)的分子机制。方法:KEGG分析Pg诱导的ESCC差异表达基因富集的生物学通路,WB和/或免疫荧光法检测Pg诱导的ESCC细胞中糖蛋白A重复优势蛋白(GARP)、TGF-β、pSMAD/SMAD、Snail、Oct4和EMT相关分子表达的变化,ELISA检测TGF-β1水平的变化,免疫组织化学法检测ESCC组织中GARP和TGF-β1的表达规律,Transwell实验和动物实验验证Pg对ESCC的促进作用。结果: ESCC细胞感染Pg后,TGF-β、Hippo、PI3K/Akt等信号通路被激活;Pg感染刺激ESCC细胞分泌总TGF-β1和活性TFG-β1的水平升高(均P<0.01),使SMAD2/3磷酸化并发生核转位,诱导N-cadherin、Snail、Oct4等蛋白表达升高、E-cadherin蛋白表达降低,由此促进ESCC细胞的迁移、侵袭和裸鼠皮下移植瘤的生长(均P<0.01)。在ESCC细胞中沉默GARP表达后,逆转了Pg所诱导的上述ESCC细胞表型变化。Pg丰度高的ESCC组织中TGF-β1和GARP蛋白表达高于低丰度的ESCC组织,且Pg丰度与TGF-β1、GARP表达存在正向关联(P=0.001 5)。结论:Pg通过GARP激活TGF-β/SMAD轴促进ESCC细胞发生EMT,进而促进ESCC细胞的迁移、侵袭和生长,清除Pg或阻断TGF-β信号转导则可阻断上述Pg对ESCC的促进作用。
- Full text:20240904085859760620240804.pdf