Genome-wide characterization of platinum persister ovarian cancer (OC) cells with upregulation of Wnt pathway receptor, Frizzled 7 (FZD7)
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ABSTRACT:
PROVIDER: PRJNA622798 | ENA |
REPOSITORIES: ENA
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Project description:The goal of this study is to define molecular signature of platinum persister OC cells characterized by FZD7, and investigate the functional role of FZD7 relative to stemness and chemo-responsiveness.
2020-10-22 | GSE148003 | GEO
Project description:Resistance to platinum-based chemotherapy is a clinical challenge in the treatment of ovarian cancer (OC) and limits survival. Therefore, innovative drugs against platinum-resistance are urgently needed. Our therapeutic concept is based on the conjugation of two chemotherapeutic compounds to a monotherapeutic pro-drug, which is taken up by cancer cells and cleaved into active cytostatic metabolites. Here, we explore the activity of the duplex-prodrug 5-FdU-ECyd, covalently linking 2'-deoxy-5-fluorouridine (5-FdU) and 3'-C-ethynylcytidine (ECyd), on platinum-resistant OC cells. RNA-Sequencing was used for characterization of 5-FdU-ECyd treated platinum-sensitive A2780 and isogenic platinum-resistant A2780cis.
2018-02-22 | GSE98230 | GEO
Project description:Oleocanthal (OL) and Oleacein (OC) are enriched components in Olive (oil and leaves). However, their effects on skin have not been widely studied compared to Oleuropein (OP). Here, we perfomed global gene expression profiling to screen the potential effects of OL and OC on the skin. Results showed that OL and OC have effects on skin development and keratinocyte differentiation by upregulation of key markers. Furthermore, OL and OC were effectively downregulated several melanogenic genes and it suggests that OL and OC can have a potential effect for pigmentation. B16F10 were murine melanoma cells line, treated with 5 µM of OL and OC for 24 hours. Microarray gene expression profiling was conducted technical replicates.
2024-05-01 | GSE237508 | GEO
Project description:IGFBP6 is a secreted protein with a controversial role in human malignancies, being downregulated in the majority of human cancers, but upregulated in selected tumors. Ovarian carcinoma (OC) is a human malignancy characterized by IGFBP6 downregulation, even though the significance of its low expression during ovarian carcinogenesis is still poorly understood. IGFBP6 expression levels and the activation of its signaling pathway were evaluated in two matched OC cell lines derived from a high-grade serous ovarian cancer before and after platinum resistance (PEA1 and PEA2 cells,respectively). A whole genome gene expression analysis was comparatively performed in both cell lines upon IGFBP6 stimulation by Illumina technology. IGFBP6 gene expression in human OCs data were obtained from public datasets. Gene expression data from public datasets confirmed the downregulation of IGFBP6 from normal ovarian tissues to primary and metastatic OCs. The comparative analysis of platinum-sensitive (PEA1) and platinum-resistant (PEA2) cell lines showed quantitative and qualitative differences in the activation of IGFBP6 signaling. Indeed, IGFBP6 enhanced ERK1/2 phosphorylation only in PEA1 cells and induced a more evident and significant gene expression reprogramming in PEA1 compared to PEA2 cells. Furthermore, the analysis of selected genes modulated by IGFBP6 (i.e., FOS, JUN, TNF, IL6, IL8, and EGR1) showed an inverse regulation in PEA1 versus PEA2 cells, as well as selected hallmarks and IL-6 signaling were ositively regulated in PEA1, while inhibited in PEA2 cells.These data suggest that loss of IGFBP6 signaling may play a role in ovarian cancer progression, being likely associated to the development of platinum resistance.
2022-03-23 | GSE189717 | GEO
Project description:Subpopulation of circulating monocyte/macrophage lineage cells show a calcifying ability in vivo and in vitro. These cells may contribute to intimal calcification within atherosclerotic lesions and may have pathophysiological clinical and therapeutic implication in vascular disorders. Such cells express Osteocalcin (OC) and Bone Alkaline Phosphatase (BAP). We analysed the expression profile of human OC+BAP+ cells versus OC-BAP- cells
2013-05-17 | GSE47060 | GEO
Project description:Bacterial persister cells are phenotypic variants of regular cells that are tolerant to antibiotics. High-persister (hip) mutants of Mycobacterium tuberculosis produce 10- to 1,000-fold more persister cells than the wild type strain when challenged with various antibiotics. Comparison of gene expression pattern of the hip mutants may provide clues as to the genetic mechanisms underlying persister formation. Transcriptome analysis will provide information on what differentiates M. tuberculosis hip strains from regular strains, which will be useful in the development of anti-persister therapy for persister cell eradication. Twelve independent M. tuberculosis hip mutants and the wild type strain were grown to stationary phase in duplicate. To avoid analyzing the drug effect, total RNA was extracted from the cultures prior to the addition of antibiotic for hybridization to Affymetrix microarrays. Data analysis was performed by comparing the hip mutants to the wild type control.
2014-04-07 | E-GEOD-55647 | biostudies-arrayexpress
Project description:Subpopulation of circulating monocyte/macrophage lineage cells show a calcifying ability in vivo and in vitro. These cells may contribute to intimal calcification within atherosclerotic lesions and may have pathophysiological clinical and therapeutic implication in vascular disorders. Such cells express Osteocalcin (OC) and Bone Alkaline Phosphatase (BAP). We analysed the expression profile of human OC+BAP+ cells versus OC-BAP- cells We compared three biological repilcates of OC+BAP+ versus OC-BAP- (each population coming from the same donor), each of the three coming from different healthy non diabetic donors.
2013-05-17 | E-GEOD-47060 | biostudies-arrayexpress
Project description:We performed scRNAseq of PC9 parental (PT) and persister cells (PS) at d1, d3 and d7 after being generated by treatment with BH3-mimetics. Trajectory analysis and differential expression along the pseudotime revealed the upregulation of the integrated stress response (ISR) and EMT signatures at early pseudotime, while gene expression profiles for cell cycle progression were upregulated at late pseudotime, characteristic for late PS and PT.
2022-09-06 | GSE189638 | GEO
Project description:Drug-tolerant persister cells withstand treatments by adapting their identity through lineage-dependent plasticity during systemic anti-cancer therapies. This phenomenon is evident in small-cell lung carcinoma (SCLC), a lethal neuroendocrine cancer initially responsive (60-80%) to platinum-based chemotherapy but succumbing to resistance within 6 months in advanced stages. This resistance associates with the transdifferentiation of residual tumour cells into a non-neuroendocrine state, a process intricately tied to SCLC's chemotolerance, yet molecular mechanisms governing this lineage conversion remain completed understood. Here we use paired cytoplasmic RNA-seq and polysomal RNA-seq to compare gene expression between NE and non-NE SCLC cell lines on both transcriptional and translational level. We report that first-line chemotherapy induces translation initiation factor eIF6 in drug-tolerant persister-like cells in SCLC, correlating with the non-neuroendocrine state in SCLC. Intervening eIF6 inhibits non-neuroendocrine transdifferentiation, thus enhancing SCLC responsiveness to chemotherapy. This study sheds light on eIF6's potential therapeutic interventions to mitigate treatment resistance in SCLC.
2024-04-30 | GSE262596 | GEO