To identify genes important in hepatocellular carcinogenesis, especially processes involved in malignant transformation, we focused on differences in gene expression between adenomas and carcinomas by DNA microarray. Eighty-one genes for which expression was specific in carcinomas were analyzed using Ingenuity Pathway Analysis software and Gene Ontology, and found to be associated with TP53 and regulators of cell proliferation. In the genes associated with TP53, we selected high mobility group box (HMGB) for detailed analysis. Immunohistochemistry revealed expression of HMGBs in carcinomas to be significantly higher than in other lesions among both human and rat liver, and a positive correlation between HMGBs and TP53 was detected in rat carcinomas. Knock-down of HMGB 2 expression in a rat hepatocellular carcinoma cell line by RNAi resulted in inhibition of cell growth, although no effects on invasion were evident in vitro. These results suggest that acquisition of malignant potential in the liver requires specific signaling pathways related to high cell proliferation associated with TP53. In particular, HMGBs appear to have an important role for progression and cell proliferation associated with loss of TP53 function in rat and in human hepatocarcinogenesis.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.tox.2008.10.023 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Identification of KRT16 and ANXA10 as cell cycle regulation genes for lung adenocarcinoma based on self-transcriptome sequencing of surgical samples and TCGA public data mining.
Discov Oncol
January 2025
Department of Geriatric Respiratory and Critical Care Medicine, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui Province, China.
Aim: This study aimed to identify the genes associated with the development of lung adenocarcinoma (LUAD) and potential therapeutic targets.
Methods: Differentially expressed genes (DEGs) were identified by self-transcriptome sequencing of tumor tissues and paracancerous tissues resected during surgery and combined with The Cancer Genome Atlas (TCGA) data to screen for the genes associated with LUAD prognosis. The expression was validated at mRNA and protein levels, and the gene knockdown was used to examine the impact and underlying mechanisms on lung cancer cells.
LINC02418 suppresses endometrial cancer progression via regulating miR-494-3p/RASGRF1 axis.
J Mol Histol
January 2025
Obstetrics and Gynecology, The Affiliated People's Hospital of Ningbo University, 251 East Baizhang Road, Ningbo, 315040, Zhejiang, China.
Long non-coding RNAs (lncRNAs) have emerged as pivotal regulatory molecules in cancer biology. Among these, long intergenic non-protein coding RNA 02418 (LINC02418), a recently identified lncRNA, has been linked to endometrial cancer (EC), although its function and operational mechanisms are largely unclear. The present investigation aims to elucidate the molecular mechanism through which LINC02418 influences EC pathogenesis.
View Article and Find Full Text PDFMetabolic shifts in glioblastoma: unraveling altered pathways and exploring novel therapeutic avenues.
Mol Biol Rep
January 2025
Department of Biotechnology, Jaypee Institute of Information Technology, A-10, Sector 62, Noida, UP, 201309, India.
Metabolic reprogramming stands out as a defining characteristic of cancer, including glioblastoma (GB), enabling tumor cells to overcome growth and survival challenges in adverse conditions. The dysregulation of metabolic processes in GB is crucial to its pathogenesis, influencing both tumorigenesis and the disease's invasive tendencies. This altered metabolism supplies essential energy substrates for uncontrolled cell proliferation and also creates an immunosuppressive microenvironment, complicating conventional therapies.
View Article and Find Full Text PDFA refined method for high-purity isolation of uterine glandular epithelial cells in mouse.
J Biochem
January 2025
Department of Comparative and Experimental Medicine, Graduate School of Medical Sciences, Nagoya City University, Nagoya, Japan.
The uterine endometrium consists of luminal epithelium, glandular epithelium, and stromal cells, with uterine glands playing a pivotal role in pregnancy success among mammals. Uterine glands secrete essential factors that regulate embryo development and implantation; however, their cellular biology remains poorly understood. This study presents a refined method for isolating three distinct endometrial cell types with high purity, with a specific emphasis on glandular epithelial cells.
View Article and Find Full Text PDFSNHG17 Reprograms Energy Metabolism of Breast Cancer by Activating Mitochondrial DNAs Transcription.
Cancer Res
January 2025
Chinese University of Hong Kong, Shenzhen, Shenzhen, Guangdong, China.
In most solid tumors, cellular energy metabolism is primarily dominated by aerobic glycolysis, which fulfills the high demand for biomacromolecules at the expense of reduced ATP production efficiency. Elucidation of the mechanisms by which rapidly proliferating malignant cells acquire sufficient energy in this state of inefficient ATP production from glycolysis could enable development of metabolism targeted therapeutic strategies. In this study, we observed a significant association between elevated expression levels of the long non-coding RNA (lncRNA) SNHG17 and unfavorable prognosis in breast cancer (BCa).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!