scholarly journals Bioinformatic Analyses and Experimental Verification Reveal that High FSTL3 Expression Promotes EMT via Fibronectin-1/α5β1 Interaction in Colorectal Cancer

2021 ◽  
Vol 8 ◽  
Author(s):  
Yuanjie Liu ◽  
Jiepin Li ◽  
Shuhong Zeng ◽  
Ying Zhang ◽  
Yonghua Zhang ◽  
...  

Background: Colorectal cancer (CRC) is a typical cancer prevalent worldwide. Despite the conventional treatments, CRC has a poor prognosis due to relapse and metastasis. Moreover, there is a dearth of sensitive biomarkers for predicting prognosis in CRC.Methods: This study used a bioinformatics approach combining validation experiments to examine the value of follistatin-like 3 (FSTL3) as a prognostic predictor and therapeutic target in CRC.Results:FSTL3 was remarkably upregulated in the CRC samples. FSTL3 overexpression was significantly associated with a poor prognosis. FSTL3 was found to activate the epithelial-mesenchymal transition by promoting the binding of FN1 to α5β1. FSTL3 expression was also positively correlated with the abundance of the potent immunosuppressors, M2 macrophages.Conclusion:FSTL3 overexpression affects CRC prognosis and thus, FSTL3 can be a prognostic biomarker and therapeutic target with potential applications in CRC.

2019 ◽  
Vol 17 ◽  
pp. 205873921985889
Author(s):  
Jun Tang ◽  
Jingfang Yang

Epithelial-mesenchymal transition (EMT) is essential for initiation of colorectal cancer (CRC) metastasis, but the diver proteins of EMT remain unclear. Special AT-rich sequence-binding protein 1 (SATB1) was found to be overexpressed in CRC cell lines, and its expression level was positively correlated with CRC progression. Strikingly, EMT process was regulated by SATB1, as SATB1 overexpression upregulated E-cadherin and SATB1 knockdown inhibited N-cadherin cell models. Mechanistically, SATB1 promoted EMT-mediated CRC metastasis via activation of Notch signaling pathway. Taken together, SATB1 plays a vital role in CRC metastasis and may act as a novel prognostic biomarker and a promising therapeutic target for CRC.


2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 693-693
Author(s):  
Jun-Eul Hwang ◽  
Woo Kyun Bae ◽  
Hyun-Jeong Shim ◽  
Sang-Hee Cho ◽  
Ik-Joo Chung

693 Background: BRAF mutation is associated with poor survival in colorectal cancer. We aimed to generate genomic signature associated with BRAF mutation that possibly predict prognosis in colorectal cancer. Methods: A gene expression signature reflecting BRAF mutation was generated in TCGA cohorts (n = 207). The colorectal cancer patients were stratified into two groups according to this signature: BRAF mutation type colorectal cancer or BRAF wild type colorectal cancer. Prognostic significance of BRAF mutation-associated gene signature was tested in three independent cohorts (GSE 17536, GSE 14333, and GSE 39582). Results: The BRAF mutation signature was associated with poor prognosis in two independent cohorts (total n = 522). BRAF mutation type colorectal cancer was associated with poor disease-free survival (median: not reached, P = 0.0303) in GSE14333, and associated with poor overall survival (BRAF mutation vs. wild, P = 0.0355), poor disease-free survival (P = 0.00794), and poor disease-specific survival (P = 0.0341) in GSE 17536. In GSE 39582, BRAF mutation type colorectal cancer demonstrated the trend of poor overall survival according to increase of stage. In a multivariate analysis, BRAF mutation gene signature was independent poor prognostic factor for disease-free survival (hazard ratio 2.7; 95% CI 1.59-2.83: P = 0.001). Gene network analyses suggested epithelial-mesenchymal transition and colon cancer metastasis signaling are the possible explanations for poor prognosis of BRAF mutation type colorectal cancer. Conclusions: BRAF mutation signature is highly associated with poor prognosis in colorectal cancer, especially in advanced stage, and the molecules associated with epithelial-mesenchymal transition can be potential therapeutic targets in BRAF mutation type colorectal cancer.


Oncotarget ◽  
2017 ◽  
Vol 8 (33) ◽  
pp. 55162-55175 ◽  
Author(s):  
Rui Zhou ◽  
Lin Qiu ◽  
Xiaolong Liu ◽  
Lijuan Ling ◽  
Ninglei Li ◽  
...  

2014 ◽  
Vol 65 (4) ◽  
pp. 527-538 ◽  
Author(s):  
Zhao-Hua Gao ◽  
Chong Lu ◽  
Zhen-Ning Wang ◽  
Yong-Xi Song ◽  
Jin-Liang Zhu ◽  
...  

Oncotarget ◽  
2016 ◽  
Vol 7 (21) ◽  
pp. 31350-31360 ◽  
Author(s):  
Christine Woischke ◽  
Cristina Blaj ◽  
Eva Marina Schmidt ◽  
Sebastian Lamprecht ◽  
Jutta Engel ◽  
...  

Author(s):  
Takatoshi Matsuyama ◽  
Toshiaki Ishikawa ◽  
Naoki Takahashi ◽  
Yasuhide Yamada ◽  
Masamichi Yasuno ◽  
...  

PLoS Genetics ◽  
2020 ◽  
Vol 16 (11) ◽  
pp. e1009159
Author(s):  
Zhexu Dong ◽  
Lei Dai ◽  
Yong Zhang ◽  
Chao Fang ◽  
Gang Shi ◽  
...  

Tumor metastasis is the major cause of poor prognosis and mortality in colorectal cancer (CRC). However, early diagnosis of highly metastatic CRC is currently difficult. In the present study, we screened for a novel biomarker, GDNF family receptor alpha 1 (GFRA1) based on the expression and methylation data in CRC patients from The Cancer Genome Altlas (TCGA), followed by further analysis of the correlation between the GFRA1 expression, methylation, and prognosis of patients. Our results show DNA hypomethylation-mediated upregulation of GFRA1 in invasive CRC, and it was found to be correlated with poor prognosis of CRC patients. Furthermore, GFRA1 methylation-modified sequences were found to have potential as methylation diagnostic markers of highly metastatic CRC. The targeted demethylation of GFRA1 by dCas9-TET1CD and gRNA promoted CRC metastasis in vivo and in vitro. Mechanistically, demethylation of GFRA1 induces epithelial-mesenchymal transition (EMT) by promoting AKT phosphorylation and increasing c-Jun expression in CRC cells. Collectively, our findings indicate that GFRA1 hypomethylation can promote CRC invasion via inducing EMT, and thus, GFRA1 methylation can be used as a biomarker for the early diagnosis of highly metastasis CRC.


Nutrients ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2040
Author(s):  
Yahima Frión-Herrera ◽  
Daniela Gabbia ◽  
Michela Scaffidi ◽  
Letizia Zagni ◽  
Osmany Cuesta-Rubio ◽  
...  

Tumor-associated macrophages (TAMs), primarily the M2 phenotype, are involved in the progression and metastasis of colorectal cancer (CRC). Cuban brown propolis (Cp) and its main component Nemorosone (Nem) displays an antiproliferative effect on different cancer cells, including CRC cell lines. However, whether Cp and Nem could exploit its effect on CRC cells by targeting their relationship with TAMs remains to be elucidated. In this study, we differentiated the human monocytic THP-1 cells to M2 macrophages and confirmed this transition by immunofluorescence (IF) staining, qRT-PCR and zymography. An MTT assay was performed to determine the effect of Cp and Nem on the viability of CRC HT-29 cells co-cultured with M2 macrophages. Furthermore, the migration and invasion abilities of HT-29 cells were determined by Transwell assays and the expression levels of epithelial–mesenchymal transition (EMT) markers were analyzed by IF staining. We demonstrated that Cp and Nem reduced the viability of M2 macrophages and, accordingly, the activity of the MMP-9 metalloprotein. Moreover, we demonstrated that M2 macrophages produce soluble factors that positively regulate HT-29 cell growth, migration and invasion. These M2-mediated effects were counteracted by Cp and Nem treatments, which also played a role in regulating the expression of the EMT markers E-cadherin and vimentin. Taken together, our results indicate that Nem contained in Cp interferes in the crosstalk between CRC cells and TAMs, by targeting M2 macrophages.


2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Junfeng Sun ◽  
Chaohui Ding ◽  
Zhen Yang ◽  
Tao Liu ◽  
Xiefu Zhang ◽  
...  

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