scholarly journals ETV5 Regulates Hepatic Fatty Acid Metabolism Through PPAR Signaling Pathway

Diabetes ◽  
2020 ◽  
Vol 70 (1) ◽  
pp. 214-226
Author(s):  
Zhuo Mao ◽  
Mingji Feng ◽  
Zhuoran Li ◽  
Minsi Zhou ◽  
Langning Xu ◽  
...  
2020 ◽  
Author(s):  
Ada Admin ◽  
Zhuo Mao ◽  
Mingji Feng ◽  
Zhuoran Li ◽  
Minsi Zhou ◽  
...  

ETV5 is an ETS transcription factor which has been associated with obesity in genomic association studies. However, little is known about the role of ETV5 in hepatic lipid metabolism and non-alcoholic fatty liver disease (NAFLD). In the present study, we found that ETV5 protein expression was increased in diet- and genetic-induced steatotic liver. ETV5 responded to the nutrient status in an mTORC1 dependent manner and in turn regulated mTORC1 activity. Both viral-mediated and genetic depletion of ETV5 in mice led to increased lipid accumulation in the liver. RNA sequencing analysis revealed that PPAR signaling and fatty acid degradation/metabolism pathways were significantly downregulated in ETV5 deficient hepatocytes <i>in vivo</i> and <i>in vitro. </i>Mechanistically, ETV5 could bind to the PPRE region of PPAR downstream genes and enhance its transactivity. Collectively, our study identifies ETV5 as a novel transcription factor for the regulation of hepatic fatty acid metabolism which is required for the optimal β oxidation process. ETV5 may provide a therapeutic target for the treatment of hepatic steatosis.<br>


2020 ◽  
Author(s):  
Ada Admin ◽  
Zhuo Mao ◽  
Mingji Feng ◽  
Zhuoran Li ◽  
Minsi Zhou ◽  
...  

ETV5 is an ETS transcription factor which has been associated with obesity in genomic association studies. However, little is known about the role of ETV5 in hepatic lipid metabolism and non-alcoholic fatty liver disease (NAFLD). In the present study, we found that ETV5 protein expression was increased in diet- and genetic-induced steatotic liver. ETV5 responded to the nutrient status in an mTORC1 dependent manner and in turn regulated mTORC1 activity. Both viral-mediated and genetic depletion of ETV5 in mice led to increased lipid accumulation in the liver. RNA sequencing analysis revealed that PPAR signaling and fatty acid degradation/metabolism pathways were significantly downregulated in ETV5 deficient hepatocytes <i>in vivo</i> and <i>in vitro. </i>Mechanistically, ETV5 could bind to the PPRE region of PPAR downstream genes and enhance its transactivity. Collectively, our study identifies ETV5 as a novel transcription factor for the regulation of hepatic fatty acid metabolism which is required for the optimal β oxidation process. ETV5 may provide a therapeutic target for the treatment of hepatic steatosis.<br>


PeerJ ◽  
2019 ◽  
Vol 7 ◽  
pp. e7515 ◽  
Author(s):  
Cui Jiang ◽  
Shuo Wu ◽  
Lei Jiang ◽  
Zhichao Gao ◽  
Xiaorui Li ◽  
...  

Objective This study aims to identify effective gene networks and biomarkers to predict response and prognosis for HER2-negative breast cancer patients who received sequential taxane-anthracycline neoadjuvant chemotherapy. Materials and Methods Transcriptome data of training dataset including 310 HER2-negative breast cancer who received taxane-anthracycline treatment and an independent validation set with 198 samples were analyzed by weighted gene co-expression network analysis (WGCNA) approach in R language. Gene ontology (GO) terms and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways analysis were performed for the selected genes. Module-clinical trait relationships were analyzed to explore the genes and pathways that associated with clinicopathological parameters. Log-rank tests and COX regression were used to identify the prognosis-related genes. Results We found a significant correlation of an expression module with distant relapse–free survival (HR = 0.213, 95% CI [0.131–0.347], P = 4.80E−9). This blue module contained genes enriched in biological process of hormone levels regulation, reproductive system, response to estradiol, cell growth and mammary gland development as well as pathways including estrogen, apelin, cAMP, the PPAR signaling pathway and fatty acid metabolism. From this module, we further screened and validated six hub genes (CA12, FOXA1, MLPH, XBP1, GATA3 and MAGED2), the expression of which were significantly associated with both better chemotherapeutic response and favorable survival for BC patients. Conclusion We used WGCNA approach to reveal a gene network that regulate HER2-negative breast cancer treatment with taxane-anthracycline neoadjuvant chemotherapy, which enriched in pathways of estrogen signaling, apelin signaling, cAMP signaling, the PPAR signaling pathway and fatty acid metabolism. In addition, genes of CA12, FOXA1, MLPH, XBP1, GATA3 and MAGED2 might serve as novel biomarkers predicting chemotherapeutic response and prognosis for HER2-negative breast cancer.


2012 ◽  
Vol 52 (3) ◽  
pp. 1015-1027 ◽  
Author(s):  
Takashi Ide ◽  
Ayana Azechi ◽  
Sayaka Kitade ◽  
Yoko Kunimatsu ◽  
Natsuko Suzuki ◽  
...  

Obesity ◽  
2014 ◽  
Vol 22 (7) ◽  
pp. 1685-1693 ◽  
Author(s):  
Lisa M. Nicholas ◽  
Leewen Rattanatray ◽  
Janna L. Morrison ◽  
David O. Kleemann ◽  
Simon K. Walker ◽  
...  

1995 ◽  
Vol 227 (3) ◽  
pp. 715-722 ◽  
Author(s):  
Daniel K. Asiedu ◽  
Ayman Al-Shurbaji ◽  
Arild C. Rustan ◽  
Ingemar Bjorkhem ◽  
Lars Berglund ◽  
...  

Author(s):  
Jolita Ciapaite ◽  
Nicole M. van den Broek ◽  
Heleen te Brinke ◽  
Klaas Nicolay ◽  
Jeroen A. Jeneson ◽  
...  

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