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Investigation of the direct activity of type I interferon on Ifnar1 KO ID8 ovarian cancer cells in vitro.

ABSTRACT: This experiment is part of a larger study examining the anti-tumour properties of interferon epsilon in ovarian cancer. The goal of this experiment was to assess whether interferon signalling had been ablated in Ifnar1 CRISPR knockout (KO) ID8 cell lines, so that they could be used for in vivo models of ovarian cancer.

ORGANISM(S): Mus musculus

PROVIDER: GSE215261 | GEO | 2023/03/28

REPOSITORIES: GEO

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Investigation of the direct activity of interferon epsilon on ID8 ovarian cancer cells in vitro.

Project description:This experiment is part of a larger study examining the anti-tumour properties of interferon epsilon in ovarian cancer. The objective of this experiment was to examine the direct activity of interferon epsilon on the mouse ovarian cancer cell line, ID8, and compare it to equivalent unit concentrations of interferon beta. The goal was to determine whether interferon epsilon and interferon beta induce different patterns of gene expression in ID8 cells.

2023-03-28 | GSE201345 | GEO

Investigation of the direct activity of type I interferon on Ifnar1 KO ID8 ovarian cancer cells in vitro.

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Investigation of the anti-tumour properties of interferon epsilon in high grade serous ovarian cancer in vivo.

Project description:This experiment is part of a larger study examining the anti-tumour properties of interferon epsilon in ovarian cancer. The goal of this experiment was to test the direct effects of interferon epsilon and interferon beta on human ovarian tumours in vivo, using patient derived xenografts (PDX) in immunocompromised (NSG) mice.

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Investigation of the direct activity of interferon epsilon on ID8 ovarian cancer cells in vitro.

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ID8 whole exome sequence

Project description:The data in this submission relate to whole exome sequencing from murine ovarian cancer cell line ID8. All sequencing was performed by Beckman Coulter Genomics, Grenoble, France in February 2013.

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Project description:We performed DNA methylation profiling at CpG sites in ID8 mouse ovarian cancer cells.

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Project description:Ovarian cancer is the leading cause of gynecological cancer related death. The overall 5 year survival rate is only 29%. Over 85% of ovarian cancer patients present with advanced stage III or IV disease characterized by intraperitoneal metastasis when diagnosed. However, the process and mechanism of ovarian tumor metastasis remain poorly understood partially because of the lack of a mouse model which could recapitulate the development of metastatic lesion in an appropriate timeframe. In order to generate a convenient ovarian cancer model with accelerated peritoneal metastasis, we performed an in vivo selection study using ID8 ovarian cancer cells to establish a rapid metastasizing mouse ovarian cancer cell line, designated ID8-M. Syngeneic mice with intraperitoneal inoculation of ID8-M cells showed measurable ascites average 35 days after the inoculation and survived only an average of 52 days, while those inoculated with parental ID8 cells showed measurable ascites after 67 days and survived over 81 days. Further analysis showed that, compared with ID8 tumors, ID8-M tumors resulted in more macrophages in the ascites; and compared to ID8 cells, ID8-M cells were more potent to promote macrophages to acquire a M2 phenotype. A microarray analysis provided information to explain the accelerated metastatic phenotype of ID8-M cells.

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Overexpression of miR-200s in murine ovarian cancer cells (ID8 and 28-2)

Project description:Little is known about the role of miR-200s in the progression of ovarian cancer. In this study we overexpressed the miR-200c/141 cluster, the miR-200b/200a/429 cluster, or both clusters in two different murine ovarian cancer cell lines (ID8 and 28-2). As co-oeverexpression of both clusters provided the best miR-200 overexpression, we evaluated ID8 and 28-2 cells overexpressing both miR-200 clusters (ID8-200f and 28-2-200f) compared to empty vector control cells (ID8EV and 28-2EV). ID8-200f and 28-2-200f cells showed increased expression of several mesenchymal genes, decreased proliferation, decreased invasion and increased apoptosis compared to their respective controls. RNA sequencing of ID8EV, ID8-200f, 28-2EV and 28-2-200f cells revealed that overexpression of miR-200s primary regulated genes involved in epithelial mesenchymal transition EMT) and gene implicated in migration. Therefore, our work suggests that miR-200s can inhibit characteristics associated ovarian cancer progression (increased proliferation and invasion and promotion of EMT).

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Structural basis of a novel Interferon b signaling axis mediated via the ifnar1 receptor

Project description:Type I interferons (IFNs) are a family of cytokines that play an important role in regulating immune responses to pathogens and tumors and are used therapeutically. All IFNs are considered to signal via the heterodimeric IFNAR1-IFNAR2 complex, yet some subtypes such as IFN? can exhibit distinct functional properties, although the molecular basis of this is unclear. Here we demonstrate IFN uniquely and specifically ligates to IFNAR1 in an IFNAR2-independent manner and provide the structural basis of the IFNAR1-IFN interaction. We show that the IFNAR1-IFN complex transduces signals to modulate the expression of a set of genes independently of IFNAR2. Moreover, we show the in vivo importance of the IFNAR1-IFN signaling axis in a murine model of LPS-induced septic shock. Thus, we provide a molecular basis for understanding specific functions of IFN?. Interferon b induced gene expression in peritoneal exudate cells was measured 3hr post intra-peritoneal injection of 10,000IU/ml of interferon beta or saline into wildtype and Ifnar2-/- mice. Three independant experiments were performed for each treatment in both genotypes using different mice for each sample.

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