Systematic analysis of mRNA expression profiles in NSCLC cell lines to screen metastasis-related genes.

Lung cancer is the most prevalent cancer in humans and has the lowest survival outcomes due to its high metastatic potential. The aim of the present study was to screen for metastasis‑related genes (MRGs) by investigating the differential expression genes (DEGs) identified by the mRNA expression profiles in SPC‑A‑1sci (highly metastatic) and SPC-A-1 (parental) cells. DEGs were screened using Genespring software.

MicroRNA-148a Suppresses Invasion and Metastasis of Human Non-Small-Cell Lung Cancer.

Background/aims: microRNAs (miRNAs) are noncoding RNAs that regulate multiple targets through either the degradation of mRNAs or the inhibition of protein translation, thereby altering several functions simultaneously. Growing evidence indicates that miRNAs are involved in carcinogenesis and tumor progression in non-small-cell lung cancer (NSCLC).

Methods: In this study, the mRNA expression levels of miR-148a were examined in NSCLC cell lines and patient specimens using quantitative reverse transcription-PCR.

Establishment of a highly metastatic model with a newly isolated lung adenocarcinoma cell line.

Lung cancer is the leading cause of malignancy-related death worldwide, and metastasis always results in a poor prognosis. However, therapeutic progress is hampered by a deficiency of appropriate pre-clinical metastatic models. To bridge this experimental gap, we developed an in vivo metastatic model via subcutaneous (s.

Quantitative proteomic analysis identifies CPNE3 as a novel metastasis-promoting gene in NSCLC.

To discover metastasis-associated proteins within cancer cells, we used the isobaric tags for relative and absolute quantitation (iTRAQ) approach combined with nano liquid chromatography-tandem mass spectrometry (NanoLC-MS/MS) analysis to identify proteins that were differentially expressed between lung adenocarcinoma cancer cell lines SPC-A-1sci cells with high metastatic potential and parent SPC-A-1 cells with low metastatic potential. By employing biological and technical replicates, we identified 5818 nonredundant proteins and quantified 5443 proteins, 256 of which were differentially expressed in the two cell lines. Through si-RNA-mediated functional screens, Myosin heavy chain 9 (MYH9) and Copine III (CPNE3) were indicated as positively correlating with the migration and invasion properties of SPC-A1sci cells, and the same function of CPNE3 was confirmed in another lung cancer cell line, H1299.

Integrative analyses identify osteopontin, LAMB3 and ITGB1 as critical pro-metastatic genes for lung cancer.

Objective: To explore the key regulatory genes associated with lung cancer in order to reduce its occurrence and progress through silencing these key genes.

Methods: To identify the key regulatory genes involved in lung cancer, we performed a combination of gene array and bioinformatics analyses to compare gene transcription profiles in 3 monoclonal cell strains with high, medium or low metastatic abilities, which were separated from the SPC-A-1sci and SPC-A-1 cell lines by limiting dilution monoclone assay. We then analyzed those genes' biological activities by knocking down their expression in SPC-A-1sci cells using siRNA and lenti-viral shRNA vectors, followed by determinations of the invasion and migration capabilities of the resulting cell lines in vitro as well as their potential for inducing occurrence and metastasis of lung cancer in vivo.

[Antitumor effect of endothelial progenitor cells with TRAIL gene transfection on ovarian carcinoma xenografts in nude mice].

Background & Objective: Tumor necrosis factor-related apoptosis inducing ligand (TRAIL) can induce apoptosis in various cancer cell lines with little toxicity toward normal cells. It offers a promising therapeutic method against ovarian cancer. Endothelial progenitor cells (EPCs) could home to tumor lesion, and take part in angiogenesis.