Project description:The Sin3 histone deacetylase (HDAC) complex is a 1.2 MDa chromatin modifying complex that can repress transcription by binding to gene promoters and deacetylating histones. The Sin3/HDAC complex can affect cell cycle progression through multiple mechanisms and is among the targets of anticancer drugs, called HDAC inhibitors. We describe the identification of a new subunit of the Sin3 complex named family with sequence similarity 60 member A (FAM60A). We show that FAM60A/Sin3 complexes normally suppress the epithelial-to-mesenchymal transition (EMT) and cell migration. This occurs through transcriptional repression of genes that encode components of the TGF-beta signaling pathway. This work reveals that FAM60A and the Sin3 complex are upstream repressors of TGF-beta signaling, EMT and cell migration and extends the known biological roles of the Sin3 complex. This experiment investigates the role of FAM60A in gene expression by comparing A549 lung cancer cells treated with or without siRNA against FAM60A. The Sin3 histone deacetylase (HDAC) complex is a 1.2 MDa chromatin modifying complex that can repress transcription by binding to gene promoters and deacetylating histones. SDS3 is a core component of the Sin3 complex. The Sin3/HDAC complex can affect cell cycle progression through multiple mechanisms and is among the targets of anticancer drugs, called HDAC inhibitors. We describe the identification of a new subunit of the Sin3 complex named family with sequence similarity 60 member A (FAM60A). We show that FAM60A/Sin3 complexes normally suppress the epithelial-to-mesenchymal transition (EMT) and cell migration. This occurs through transcriptional repression of genes that encode components of the TGF-beta signaling pathway. This work reveals that FAM60A and the Sin3 complex are upstream repressors of TGF-beta signaling, EMT and cell migration and extends the known biological roles of the Sin3 complex. As a base line to better understand the relationship between FAM60A and the Sin3 complex, this experiment investigates the gene expression changes which occur in A549 lung cancer cells when the Sin3 complex is perturbed by knockdown of a core component via siRNA against SDS3. FAM60A siRNA knockdowns were compared to a non-targeting control in triplicate, for a total of 6 samples. SDS3 siRNA knockdowns were compared to a non-targeting control in triplicate, for a total of 6 samples.
Project description:The Sin3 histone deacetylase (HDAC) complex is a 1.2 MDa chromatin modifying complex that can repress transcription by binding to gene promoters and deacetylating histones. The Sin3/HDAC complex can affect cell cycle progression through multiple mechanisms and is among the targets of anticancer drugs, called HDAC inhibitors. We describe the identification of a new subunit of the Sin3 complex named family with sequence similarity 60 member A (FAM60A). We show that FAM60A/Sin3 complexes normally suppress the epithelial-to-mesenchymal transition (EMT) and cell migration. This occurs through transcriptional repression of genes that encode components of the TGF-beta signaling pathway. This work reveals that FAM60A and the Sin3 complex are upstream repressors of TGF-beta signaling, EMT and cell migration and extends the known biological roles of the Sin3 complex. This experiment investigates the role of FAM60A in gene expression by comparing A549 lung cancer cells treated with or without siRNA against FAM60A. The Sin3 histone deacetylase (HDAC) complex is a 1.2 MDa chromatin modifying complex that can repress transcription by binding to gene promoters and deacetylating histones. SDS3 is a core component of the Sin3 complex. The Sin3/HDAC complex can affect cell cycle progression through multiple mechanisms and is among the targets of anticancer drugs, called HDAC inhibitors. We describe the identification of a new subunit of the Sin3 complex named family with sequence similarity 60 member A (FAM60A). We show that FAM60A/Sin3 complexes normally suppress the epithelial-to-mesenchymal transition (EMT) and cell migration. This occurs through transcriptional repression of genes that encode components of the TGF-beta signaling pathway. This work reveals that FAM60A and the Sin3 complex are upstream repressors of TGF-beta signaling, EMT and cell migration and extends the known biological roles of the Sin3 complex. As a base line to better understand the relationship between FAM60A and the Sin3 complex, this experiment investigates the gene expression changes which occur in A549 lung cancer cells when the Sin3 complex is perturbed by knockdown of a core component via siRNA against SDS3.
Project description:We depleted TIMM13 using short interfering RNA (siRNA) in A549 lung cancer cells, and found that silencing of TIMM13 could significantly inhibit A549 cell proliferation. Thus, we conducted RNA-seq in the A549 cells transduced with either nontargeting siRNA or two distinct TIMM13-specific siRNAs. We observed widespread gene expression change in A549 cells upon TIMM13 knockdown.
Project description:We profiled transcriptomes in human lung cancer cell line A549 when the expression of Bloom was knockdown by the siRNA specific to Bloom.
Project description:To explore the function of TIGD1 in lung cancer cells, we performed microarray to analyze the expression pattern changes by knockdown of TIGD1 in A549 cells.
Project description:NEDD9 is important for lung cancer metastasis. However, the detailed mechanism remains elusive. Using the microarray data generated with human lung cancer cell lines with either NEDD9 overexpression or NEDD9 knockdown, we plan to idnetify important signal pathways regulated by NEDD9. This may explain how NEDD9 excutes its function in lung cancer. We used microarrays to detail the global programme of gene expression underlying cellularisation and identified distinct classes of up-regulated genes during this process. Human lung cancer cell line A549, which has LKB1 loss-of-function mutation and increased expression of NEDD9, was used for two individual NEDD9 knockdown. Human lung cancer cell line CRL-5907, which has wild-type LKB1 and low NEDD9 expression level, was used for NEDD9 overexpression. The microarray was done in A549 cells, A549 cells with two different NEDD9 knockdown; CRL-5907 cells and CRL-5907 cells with NEDD9 overexpression.
Project description:Aldehyde dehydrogenase isozymes ALDH1A1 and ALDH3A1 are highly expressed in non small cell cell lung cancer. Neither the mechanism nor the biological significance for such over expression have been studied. We used microarrays to analyze changes in A549 lung cancer cell line in which ALDH activity was reduced using lentiviral mediated expression of siRNA against both isozymes (Lenti 1+3) Experiment Overall Design: A549 lung cancer cell lines were transduced with lentiviral vectors containing specific siRNA sequences against ALDH1A1, ALDH3A1, both vectors (Lenti 1+3 cells), and against the green flourescent protein (GFP) gene (GFP cells, used as control).
Project description:The experiment was designed to display differential gene expression profiling in one lung epithelial cell BEAS2-B, and three lung cancer cell lines A549, H1299, H460 cells upon knockdown of RNF20, by using RNAseq technology.
Project description:The mRNA and protein levels of FAM60A were significantly upregulated in PTC cancer tissues compared with paired normal tissue. Knockdown of FAM60A1 in TPC-1 and K1 significantly supressed cell growth, colony formation ability, tumor invasion, and phase transition of the cell cycle. We used microarrays to investigate the gene expression alterations of PTC cells after FAM60A knockdown by shRNA.