ABSTRACT: Genomic architecture of mesothelioma parent study is project 925. This project is set up in parallel to project 925 in order to Whole genome sequence ten of the 59 tumours in that project.
Project description:Genomic architecture of mesothelioma parent study is project 925. This project is set up in parallel to project 925 in order to Whole genome sequence ten of the 59 tumours in that project.
Project description:SNP array data from 45 cell lines of Malignant Pleural Mesothelioma were used to explore recurrent copy number alterations. This study was part of Cartes d'Identité des Tumeurs (CIT) project from the french Ligue Nationale Contre le Cancer.
Project description:CD26 is a prognostic factor in many cancers and implicated as therapeutic target. Knockdown of CD26 on mesothelioma cells H226 and JMN inhibit tumor progression. In order to elucidate CD26-mediated pathway for tumor progression, CD26 was knocked down on H226 and JMN cells, and RNAs from these cells were subjected to Microarray analysis.
Project description:In order to discover critical pathways /networks or therapeutic targets in pleural mesothelioma we profiled 55 tumors along with paired normal tissue (for 41 tumors) using Affymetrix U133 plus 2.0 chips
Project description:Diagnosis of malignant pleural mesothelioma (MPM) is difficult, the most common differential diagnosis being benign pleural diseases and metastatic adenocarcinomas. In order to identify novel markers able to improve diagnostic accuracy, we performed a genome-wide gene expression analysis on tumor cells lines established from pleural effusions (13 MPM and 4 lung adenocarcinoma). Our microarray analysis led to the identification of genes encoding novel cellular and soluble markers whose expression was validated by RT-qPCR. Immunohistochemical staining of tumor biopsies with anti-type-III collagen antibodies were positive in mesothelioma cells but not in adenocarcinoma cells. Using ELISA, we showed that the C-C motif chemokine 2 (CCL2) concentration was significantly higher in pleural effusions from patients with mesothelioma (n = 61) than in subjects with adenocarcinoma (n = 25) or with benign pleural effusions (n = 15): median (interquartile range) = 2.99 ng/mL (1.76-6.01) versus 0.99 ng/mL (0.51-1.83) and 1.47 ng/mL (0.80-1.56), respectively, P < 0.0001. Conversely, the galectin-3 concentration was lower in mesothelioma: 11.50 ng/mL (6.73-23.53) versus 24.74 ng/mL (20.42-70.35) and 17.64 ng/mL (14.81-24.68), respectively, P < 0.0001. The AUC for CCL2 were 0.8030 and 0.7716 for differentiating mesothelioma from adenocarcinoma or benign effusions, respectively. Similarly, the AUC obtained for galectin-3 were 0.7980 and 0.6923, respectively. In conclusion, type-III collagen, CCL2 and galectin-3 are promising new diagnostic markers for mesothelioma.
Project description:Identification of relevant miR-24-3p target mRNAs in human mesothelioma cell lines in order to characterize novel therapeutical targets in Mesothelioma disease
Project description:Desmoplastic malignant mesothelioma is a rare tumor. Due to the rarity, genomic profile of desmoplastic malignant mesothelioma is not unveiled. To elucidate genomic profile of desmoplastic malignant mesothelioma, we used illumina infinium omini exomeexpress in an established patient-derived cell line of desmoplastic malignant mesothelioma.
Project description:Immunoaffinity purification was performed on human mesothelioma cell lines NCI-H2452, NCI-H28, MSTO-211H and JL1, on murine mesothelioma cell line AB12, as well as on mesothelioma samples from two patients (including tumor and benign tissues). Thereafter Immunopeptidomics by Mass Spectrometry on a Tims TOF Pro revealed the MHC peptide landscape of mesothelioma.
