NF-κB signaling relieves negative regulation by miR-194 in hepatocellular carcinoma by suppressing the transcription factor HNF-1α

2015 ◽  
Vol 8 (387) ◽  
pp. ra75-ra75 ◽  
Author(s):  
Chunyang Bao ◽  
Yan Li ◽  
Lin Huan ◽  
Yuannv Zhang ◽  
Fangyu Zhao ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Transcription Factor ◽  
Negative Regulation

scholarly journals Anti-Cancer Effects of Glaucarubinone in the Hepatocellular Carcinoma Cell Line Huh7 via Regulation of the Epithelial-To-Mesenchymal Transition-Associated Transcription Factor Twist1

2021 ◽  
Vol 22 (4) ◽  
pp. 1700
Author(s):  
Jihye Seo ◽  
Jain Ha ◽  
Eunjeong Kang ◽  
Haelim Yoon ◽  
Sewoong Lee ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Wound Healing ◽  
Transcription Factor ◽  
Cell Migration ◽  
Cell Line ◽  
Intracellular Signaling ◽  
Epithelial To Mesenchymal Transition ◽  
Mesenchymal Transition ◽  
Huh7 Cells ◽  
Anti Cancer

Hepatocellular carcinoma (HCC), the most common type of liver cancer, is a leading cause of cancer-related deaths. As HCC has a high mortality rate and its incidence is increasing worldwide, understanding and treating HCC are crucial for resolving major public health concerns. In the present study, wound healing screening assays were performed using natural product libraries to identify natural chemicals that can inhibit cancer cell migration. Glaucarubinone (GCB) showed a high potential for inhibiting cell migration. The anti-cancer effects of GCB were evaluated using the HCC cell line, Huh7. GCB showed anti-cancer effects, as verified by wound healing, cell migration, invasion, colony formation, and three-dimensional spheroid invasion assays. In addition, cells treated with GCB showed suppressed matrix metalloproteinase activities. Immunoblotting analyses of intracellular signaling pathways revealed that GCB regulated the levels of Twist1, a crucial transcription factor associated with epithelial-to-mesenchymal transition, and mitogen-activated protein kinase. The invasive ability of cancer cells was found to be decreased by the regulation of Twist1 protein levels. Furthermore, GCB downregulated phosphorylation of extracellular signal-regulated kinase. These results indicate that GCB exhibits anti-metastatic properties in Huh7 cells, suggesting that it could be used to treat HCC.

scholarly journals Creation of a Six-fingered Artificial Transcription Factor That Represses the Hepatitis B Virus HBx Gene Integrated into a Human Hepatocellular Carcinoma Cell Line

2012 ◽  
Vol 18 (4) ◽  
pp. 378-387 ◽  
Author(s):  
Xinghui Zhao ◽  
Zhanzhong Zhao ◽  
Junwei Guo ◽  
Peitang Huang ◽  
Xudong Zhu ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Transcription Factor ◽  
Hepatitis B Virus ◽  
Hepatitis B ◽  
Cell Line ◽  
Hbv Infection ◽  
Luciferase Reporter ◽  
Artificial Transcription Factor ◽  
Chronic Hepatitis B Virus ◽  
B Virus

Chronic hepatitis B virus (HBV) infection is an independent risk factor for the development of hepatocellular carcinoma (HCC). The HBV HBx gene is frequently identified as an integrant in the chromosomal DNA of patients with HCC. HBx encodes the X protein (HBx), a putative viral oncoprotein that affects transcriptional regulation of several cellular genes. Therefore, HBx may be an ideal target to impede the progression of HBV infection–related HCC. In this study, integrated HBx was transcriptionally downregulated using an artificial transcription factor (ATF). Two three-fingered Cys2-His2 zinc finger (ZF) motifs that specifically recognized two 9-bp DNA sequences regulating HBx expression were identified from a phage-display library. The ZF domains were linked into a six-fingered protein that specified an 18-bp DNA target in the Enhancer I region upstream of HBx. This DNA-binding domain was fused with a Krüppel-associated box (KRAB) transcriptional repression domain to produce an ATF designed to downregulate HBx integrated into the Hep3B HCC cell line. The ATF significantly repressed HBx in a luciferase reporter assay. Stably expressing the ATF in Hep3B cells resulted in significant growth arrest, whereas stably expressing the ATF in an HCC cell line lacking integrated HBx (HepG2) had virtually no effect. The targeted downregulation of integrated HBx is a promising novel approach to inhibiting the progression of HBV infection–related HCC.

scholarly journals Targeting the mevalonate pathway is a novel therapeutic approach to inhibit oncogenic FoxM1 transcription factor in human hepatocellular carcinoma

Oncotarget ◽  
2018 ◽  
Vol 9 (30) ◽  
pp. 21022-21035 ◽  
Author(s):  
Satoshi Ogura ◽  
Yuichi Yoshida ◽  
Tomohide Kurahashi ◽  
Mayumi Egawa ◽  
Kunimaro Furuta ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Transcription Factor ◽  
Therapeutic Approach ◽  
Mevalonate Pathway ◽  
Human Hepatocellular Carcinoma ◽  
Novel Therapeutic
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