AI Article Synopsis
- - The study investigates gene expression differences between the triple negative breast cancer cell line MDA-MB-231 and its brain metastatic variant, finding 4,296 genes with altered expression, including 2,433 up-regulated and 1,863 down-regulated.
- - Analyses such as Gene Ontology and KEGG pathway focus on how these genes relate to various biological functions, including signal transduction and nervous system development.
- - The research aims to uncover the molecular mechanisms behind brain metastasis in triple negative breast cancer, which could aid in understanding the disease and developing new treatments.
Article Abstract
Brain metastatic triple negative breast cancer (BM-TNBC) is afflicted with unfavorable prognosis. However, the molecular events underlying BM-TNBC remain largely unknown. In the present study, we conducted gene expression microarray analysis using the triple negative breast cancer cell line MDA-MB-231 and its brain metastatic derivative (MDA-MB-231Brm). Results of microarray analysis showed that a total of 4296 genes were differentially expressed, of which 2433 genes were up-regulated and 1863 genes were down-regulated. Gene Ontology (GO), KEGG pathway and protein-protein interaction (PPI) analyses indicated differentially expressed genes functionally categorized as genes of signal transduction, multicellular organismal development, ion transport, nervous system development, plasma membrane, extracellular region, calcium ion binding, GTP binding neuroactive ligand-receptor interaction. The validity of the microarray results was verified by quantitative real-time PCR analysis of twelve representative genes. The present findings revealed molecular basis and events associated with brain metastasis in TNBC, which will potentially contribute to the understanding of underlying mechanism and develop therapeutic targets.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.gene.2017.10.019 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Atrial Fibrillation and Retinal Stroke.
JAMA Netw Open
January 2025
Department of Neurology, Duke University School of Medicine, Durham, North Carolina.
Importance: Atrial fibrillation (AF) is the most common, chronic, cardiac arrythmia in older US adults. It is not known whether AF is independently associated with increased risk of retinal stroke (central retinal artery occlusion), a subtype of ischemic stroke that causes severely disabling visual loss in most cases and is a harbinger of further vascular events.
Objective: To determine whether there is an association between AF and retinal stroke.
Central Nervous System Metastases in Breast Cancer.
Curr Treat Options Oncol
January 2025
Breast Oncology Program, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, USA.
Breast cancer metastasizing to the central nervous system (CNS) encompasses two distinct entities: brain metastases involving the cerebral parenchyma and infiltration of the leptomeningeal space, i.e., leptomeningeal disease.
View Article and Find Full Text PDFGenomic profiling reveals SMARCA4 mutations are associated with shorter overall and intracranial progression free survival in melanoma brain metastasis patients.
Clin Cancer Res
December 2024
Dana-Farber Cancer Institute, Boston, MA, United States.
Purpose: Melanoma brain metastases (MBMs) are a common, lethal complication of metastatic melanoma. Despite improvements in treatments, subsets of MBM patients experience rapid decline, and few prognostic biomarkers have been identified. An improved understanding of the molecular features specifically associated with MBM overall survival (OS) and intracranial progression free survival (PFS) could facilitate the development of more effective clinical management strategies.
View Article and Find Full Text PDFBackground: The ARTS biomarker is a fully automated software container that predicts the presence of arteriolosclerosis based on in-vivo MRI data and demographic features. The present study describes findings from the instrumental and clinical validation of ARTS conducted by the MarkVCID consortium.
Method: Instrumental validation of ARTS involved assessment of inter-rater reliability, test-retest repeatability, and inter-scanner reproducibility.
Background: In recent efforts to improve early identification, staging, and prediction of risk of persons at risk for vascular contributions to cognitive impairment and dementia (VCID) in relation with small vessel disease (SVD), the MarkVCID consortium has worked to identify and validate fluid- and imaging-based biomarkers for SVD associated with VCID. Free water (FW) measured derived from diffusion tensor imaging and one of the selected neuroimaging biomarker "kits", has been demonstrated to have excellent instrumental validity and to be a sensitive biomarker of cognitive performances. We sought to further examine FW clinical relevance by investigating whether FW predicts cognitive worsening over time.
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!