Project description:Gene expression profiling of NSCLC tumors with distinct PAEP expression suggested several pathways, which might be involved in the regulation of PAEP/glycodelin expression.
Project description:A custom microarray was used to measure the gene expression of NSCLC tumors. This represents a subset of samples which also have matched DNA copy number profiles from array CGH experiments 49 microdissected NSCLC tumor samples
Project description:A custom microarray was used to measure the gene expression of NSCLC tumors. This represents a subset of samples which also have matched DNA copy number profiles from array CGH experiments
Project description:Whole genome tiling path array CGH was used to measure the copy number profiles of 271 NSCLC tumors 271 microdissected NSCLC tumors
Project description:Genomic changes in low and highly metastatic A549 cells were analyzed by 500K SNP arrays. A large number of genomic alterations were present in A549 cells but no significant differences were observed between the low or highly metastatic A549 cell lines. We generated a NSCLC line with highly increased propensity to form tumor nodules in murine lungs after intravenous injections. Extravasation and growth at a distant site are important parts of the metastatic process and we regarded these as a surrogate marker for in vivo aggressiveness and potential metastatic capability. A549 lung asdenocarcimona cell line with initially low metastatic potential was used for this purpose; these cells formed multiple small nodules in NOD/SCID mice after first i.v.-injection, round 1 (R1). Removal of tumor nodules from the lungs and subsequent re-injection led to a rapid increase in metastatic capacity. A highly aggressive phenotype which was stable over time was evident after three rounds (R3) of in vivo selection for the A549 cell line.
Project description:Non-small cell lung cancer (NSCLC) with epidermal growth factor receptor (EGFR) mutations do not respond to anti-PD-1 (L1) as well as tumors without an EGFR mutation. We showed in a xenograft mouse model of EGFR-mutated NSCLC that, neither durvalumab nor oleclumab alone inhibited tumor growth compared to the isotype control. In contrast, the combination of both antibodies significantly inhibited tumor growth and increased gene expressions that corresponded to inflammation and T cell function in tumors treated. We used microarrays to study gene expressions that corresponded to enhanced immune response in antibody-treated mice.