Purpose: MicroRNA-101 (miR-101) expression is negatively associated with tumor growth and proliferation in several solid epithelial cancers. Enhancer of zeste homolog 2 (EzH2) appears to be a functional target of miR-101. We explore the role of miR-101 and its interaction with EzH2 in epithelial ovarian carcinoma (EOC).
Methods: In situ hybridization (ISH) for miR-101 was performed on EOC patient tissues and normal controls. EOC cell lines were transfected with miR-101 and subjected to growth analysis and clonogenic assays. Cell motility was assessed by Boyden chamber and wound-healing assays. P21(waf1/cip1) and EzH2 interaction was assessed by Chromatin Immunoprecipitation (ChIP) assay in MDAH-2774 cells. SCID mice were assessed for tumor burden after injection with miR-101 or control vector-treated MDAH-2774 cells.
Results: ISH analysis revealed a decrease in miR-101 expression in EOC compared with normal tissue. MiR-101 re-expression in EOC cell lines resulted in increased apoptosis, decreased cellular proliferation, invasiveness, and reduced growth of tumor xenografts. CHIP assays revealed that re-expression of miR-101 inhibited the interaction of EzH2 with p21(waf1/cip1) promoter.
Conclusions: MiR-101 re-expression appears to have antitumor effects, providing a better understanding of the role of miR-101 in EOC.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1007/s11095-011-0547-x | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Expression profiles of miR-101-3p and miR-431-5p as potential diagnostic biomarkers for rheumatoid arthritis.
Sci Rep
January 2025
Department of Medical Biotechnology, College of Biotechnology, Misr University for Science and Technology, P. O. Box 77, Giza, Egypt.
Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by persistent inflammation of the synovial joints, leading to cartilage and bone destruction. This study aimed to evaluate the diagnostic utility of specific microRNAs (miRNAs) as potential biomarkers for RA. The study was conducted on 60 patients with RA disease along with 20 control participants.
View Article and Find Full Text PDFSerum miRNA-101 expression signature as non-invasive diagnostic biomarker for Hepatitis C virus-associated hepatocellular carcinoma in Egyptian patients.
Sci Rep
January 2025
Botany and Microbiology Department, Faculty of Science, Al-Azhar University, Cairo, 11884, Egypt.
Hepatocellular carcinoma (HCC) is a leading cause of cancer mortality globally due to HCC late diagnosis and limited treatment options. MiRNAs (miRNAs) emerged as potential biomarkers for various diseases, including HCC. However, the value of miRNA-101 as a serum biomarker for HCV-induced HCC has not been fully investigated.
View Article and Find Full Text PDFIdentification of genetic associations between acute myocardial infarction and non-small cell lung cancer.
Front Mol Biosci
December 2024
Department of Neurology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China.
Article Synopsis
- Research indicates a potential link between myocardial infarction (MI) and lung cancer (LC), with an aim to uncover shared genes and pathways through bioinformatics analysis.
- Two public datasets were analyzed to find differentially expressed genes (DEGs), with enrichment analysis revealing connections to key biological processes and the identification of eight hub genes that show diagnostic promise.
- Eight common signature genes linked to both diseases were validated, and zoledronic acid was highlighted as a potential therapeutic drug for treating patients suffering from both MI and LC.
Analysing the relevance of TGF-β and its regulators in cervical cancer to identify therapeutic and diagnostic markers.
Gene
February 2025
Department of Biochemistry, Karpagam Academy of Higher Education, Coimbatore 641021, Tamil Nadu, India; Centre for Cancer Research, Karpagam Academy of Higher Education, Coimbatore 641021, Tamil Nadu, India. Electronic address:
The role of transforming growth factor-beta (TGF-β) is dual, such that, it inhibits tumor development in initial stage and promotes metastasis in later stage. The present study is aimed to analyse the relevance of different types of TGF-β and their receptors on the overall survival (OS) and TGF-β driven gene expression in individuals with cervical cancer (CC) using ONCODB and GEPIA databases. The in-silico gene expression analysis showed, TGF-β1 and TGFβR2 are upregulated in cells infected with human papilloma virus (HPV)16, whereas, TGF-β2, TGFβR1 and TGFβR3 expression were downregulated.
View Article and Find Full Text PDFCharacterization of circulating miRNA in cow milk and colostrum.
J Dairy Sci
December 2024
Department of Agronomy, Food, Natural resources, Animals and Environment (DAFNAE), University of Padova, Viale dell'Università 16, 35020 Legnaro (PD), Italy.
MicroRNAs (miRNAs) are short RNA molecules, typically 21-25 nucleotides long, synthesized within eukaryotic cells. They play a crucial role in coordinating complex gene expression regulatory networks. The miRNAs are involved in post-transcriptional regulation, either by degrading target mRNA or suppressing their transcription, thereby influencing protein translation.
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!