Ligand-activated PPARδ expression promotes hepatocellular carcinoma progression by regulating the PI3K-AKT signaling pathway

被引:10
|
作者
Han, Wei [1 ]
Wang, Nan [1 ]
Kong, Rui [1 ]
Bao, Wen [1 ]
Lu, Jie [2 ]
机构
[1] Tongji Univ, Shanghai Peoples Hosp 10, Dept Gastroenterol, Sch Med, Shanghai, Peoples R China
[2] Gongli Hosp Shanghai Pudong New Area, Dept Gastroenterol, Shanghai, Peoples R China
关键词
PPAR delta; HCC; Prognosis; PI3K-AKT; EPITHELIAL-MESENCHYMAL TRANSITIONS; TRANSCRIPTION FACTOR SNAIL; RECEPTOR-DELTA; MACROPHAGES; MIGRATION; INVASION; GROWTH; BETA;
D O I
10.1186/s12967-022-03288-9
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
Background: Peroxisome proliferator-activated receptor-beta/delta (PPAR delta) was considered as the key regulator involved in the evolution of various tumors. Given that PPAR delta potential role in hepatocellular carcinoma (HCC) is still obscure, we comprehensively assessed its expression pattern, prognosis, functions and correlation with tumor microenvironment in HCC using public database data and in vitro studies. Methods: Transcriptional data and clinical data in the TCGA and GEO database were analyzed in R software. Quantitative real-time polymerase chain reaction (qRT-PCR), western blotting and immunohistochemistry were used to detect the expression level of related RNA and proteins. The malignant biological characteristics were explored by cell counting Kit-8 (CCK8), 5-Ethynyl-2MODIFIER LETTER PRIME-deoxyuridine (EdU) assay and wound healing assay. Results: Our results illustrated that PPAR delta expression was significantly higher in HCC tissues and HCC cell lines. Elevated expression of PPAR delta suggested poor clinical staging and prognosis in HCC. Ligand-activated PPAR delta expression promoted the proliferation and invasion of HCC cells via PDK1/AKT/GSK3 beta signaling pathway. The expression of PPAR delta was closely related to the HCC tumor microenvironment. Conclusions: PPAR delta plays an important part in HCC progression, penetrating investigation of the related regulatory mechanism may shed light upon further biological and pharmacological value.
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页数:14
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