Project description:A Cartes d'Identite des Tumeurs (CIT) project from the French National League Against Cancer (http://cit.ligue-cancer.net ) 25 glioblastoma multiforme tumors hybridized on Illumina SNP and Affymetrix gene expression arrays. Project leader : François DUCRAY (francois.ducray@chu-lyon.fr). CIT Analysis : Julien LAFFAIRE (laffairej@ligue-cancer.net). Note: PFS : progression-free survival, OS: Overall Survival,BCNU : Carmustine (chemotherapy agent). RESPONDER: if the patient has shown or not shown a response to the treatment (Bevacizumab (Avastin) plus Irinotecan). Progression during : If the disease has progressed (cancer relapse or patient's death); otherwise (patient is alive without relapse).
Project description:We have found that cyclophilin B (CypB) expression is important for malignant glioblastoma multiforme (GBM) cell proliferation. To identify molecular mechanisms that could explain CypB-dependent survival in human GBM cells, a microarray analysis was performed using RNA prepared from U251MG GBM cells transduced with lentiviral CypB shRNA. These data revealed that about 130 genes were more than 2-fold affected by CypB depletion. Significant alterations in the expression of genes related to cell death, cell proliferation and cell migration were found in the shCypB cells. U251 glioblastoma cells transduced with lentivirus expressing non-target control shRNA (shCON) were compared to cells transduced with lentivirus expressing shRNA sequence against cyclophilin B (shCypB). Cells transduced with the lentiviral shRNA (shCON VS shCypB) for 5 days before total RNA extraction. Three biological replicates of cells treated with each shRNA (shCON or shCypB) were profiled.
Project description:We have found that cyclophilin B (CypB) expression is important for malignant glioblastoma multiforme (GBM) cell proliferation. To identify molecular mechanisms that could explain CypB-dependent survival in human GBM cells, a microarray analysis was performed using RNA prepared from U251MG GBM cells transduced with lentiviral CypB shRNA. These data revealed that about 130 genes were more than 2-fold affected by CypB depletion. Significant alterations in the expression of genes related to cell death, cell proliferation and cell migration were found in the shCypB cells.