The goal of this study is to investigate if interferon signaling regulates immune checkpoint blockade in mouse melanoma model. Overall design: Transcription profiling for B16, B16 after chronic interferon treatment, B16 derived checkpoint blockade resistant strain 499 and various knockout from 499, coupled with ATA-seq data.
Tumor Interferon Signaling Regulates a Multigenic Resistance Program to Immune Checkpoint Blockade.
Specimen part, Treatment, Subject
View SamplesThe goal of our study is to determine whether Atg16L1 deficiency leads to differences in the transcriptional profile of CD11c+ Dendritic Cells, ultimately leading to an increased inflammatory phenotype.
Autophagy gene Atg16L1 prevents lethal T cell alloreactivity mediated by dendritic cells.
Specimen part
View SamplesThe goal of our study is to determine whether Atg16L1 deficiency leads to differences in the transcriptional profile of CD11c+ Dendritic Cells, ultimately leading to an increased inflammatory phenotype.
Autophagy gene Atg16L1 prevents lethal T cell alloreactivity mediated by dendritic cells.
Age, Specimen part
View SamplesThis SuperSeries is composed of the SubSeries listed below.
Autophagy gene Atg16L1 prevents lethal T cell alloreactivity mediated by dendritic cells.
Age, Specimen part
View SamplesThe goal of this study is to compare gene expression levels in the livers of larval Tg(fabp10:nls-mcherry) exposed to 1 mM inorganic arsenic from 4-120 hpf to the unexposed siblings. Samples were collected from Tg(fabp10:nls-mcherry) zebrafish larvae that were derived from incrossed parents of the same strain. The background of transgenic lines were typically from mixed outcrosses of the transgenics to AB, TAB5, and TAB14 strains when regenerating the lines as the working stocks aged. All samples were collected at approximately 120 hpf - natural spawning at 8:30-9:00AM EST on day zero, samples were collected at 8-10AM EST on day 5. Overall design: 10-20 livers from 5dpf embryos were pooled per sample of either control or 1 mM inorganic arsenic exposed Tg(fabp10:nls-mcherry) zebrafish larvae and RNA was extracted using the Zymo Quick-RNA Micro Kit with on-column DNase treatment. Libraries were prepared according to Illumina Truseq RNA sample prep kit, version 2, followed by Ribo-Zero Gold treatment.
Inorganic arsenic causes fatty liver and interacts with ethanol to cause alcoholic liver disease in zebrafish.
No sample metadata fields
View SamplesResponse to immune checkpoint inhibitors may be improved through combinations with each other and other therapies, raising questions about non-redundancy and resistance. We report results from parallel studies of melanoma patients and mice treated with anti-CTLA4 and radiation (RT). Although combined treatment improved responses, resistance was common. Computational analyses of immune and transcriptomic profiles (provided here) revealed that resistance in mice was due to upregulation of tumor PD-L1 that drives T cell exhaustion. Accordingly, optimal response requires RT, anti-CTLA4, and anti-PD-L1. Anti-CTLA4 inhibits Tregs, RT diversifies and shapes the TCR repertoire, and anti-PD-L1 reinvigorates exhausted T cells. Together, all three therapies promote the expansion of clonotypes with distinct TCR traits. Similar to mice, patients with melanoma showing high PD-L1 did not respond to RT + anti-CTLA4, demonstrated persistent T cell exhaustion, and rapidly progressed. Thus, the combination of RT, anti-CTLA4, and anti-PD-L1 promotes response through distinct mechanisms.
Radiation and dual checkpoint blockade activate non-redundant immune mechanisms in cancer.
No sample metadata fields
View SamplesWe report the application of RNA-seq analysis for high-throughput profiling of murine lungs infected with Aspergillus fumigatus. We compared the lung transcription of wildtype murine lungs and lungs from mice deficient in metabolic cytokine adiponectin. Overall design: Examination of 2 different mice strain and comparison of lung transcripts in response to Aspergillus fumigatus infection.
The Metabolic Cytokine Adiponectin Inhibits Inflammatory Lung Pathology in Invasive Aspergillosis.
Specimen part, Cell line, Subject
View SamplesWe report the first RNA-Seq experiments profiling of FancC deficiency in B cells. Overall design: RNA-Seq of FancC-dependent gene signatures in mouse mature B cells
Loss of Fancc Impairs Antibody-Secreting Cell Differentiation in Mice through Deregulating the Wnt Signaling Pathway.
Subject
View SamplesTargeting components of the mitogen-activated protein kinase (MAPK) pathway prolongs survival of patients with advanced BRAFV600E melanomas but such an approach is not curative because of the rapid acquisition of numerous resistance mechanisms. Here we analyze melanoma cells that evade MAPK inhibitors by undergoing a senescence-like, slow-growth, phenotype, which leads to acquired resistance. The initial therapeutic response is characterized by an integrated stress response program, including stimulation of autophagic flux, activation of the endoplasmic reticulum machinery, and an enhanced ability of detoxifying reactive oxygen species. Reversibly senescent cells also exhibit an increase in mitochondrial genome copy number and a strong metabolic shift towards oxidative phosphorylation (OxPhos). Inducing mitochondrial dysfunction by co-targeting the MAPK pathway and mitochondrial Hsp90-directed protein folding with specific inhibitors prevented entry of cells into a reversibly senescent state, suppressed mitochondrial energy metabolism and augmented therapy response.
Targeting mitochondrial biogenesis to overcome drug resistance to MAPK inhibitors.
Disease, Disease stage, Cell line, Time
View SamplesHyperimmune activation is one of the strong predictors of disease progression during pathogenic immunodeficiency virus infections and is mediated in part by sustained type I interferon (IFN) signaling. Combination antiretroviral therapy suppresses hyperimmune activation only partially in HIV-infected individuals. Here, we show that blockade of Programmed Death-1 (PD-1) during chonic SIV infection significantly reduces the expression of transcripts associated with type I IFN signaling in the blood and colorectal tissue of rhesus macaques (RM). The effect of PD-1 blockade on type I IFN signaling was durable and persisted under high viremia, a condition that is seen in nonprogressive SIV infection in their natural hosts. The reduced type I IFN signaling was associated with enhanced expression of some of the junction-associated genes in the colorectal tissue and a profound decrease in LPS levels in plasma suggesting a possible repair of gut associated junctions and decreased microbial translocation. The reduced type I IFN signaling was also associated with enhanced immunity against gut resident pathogenic bacteria, control of gut associated opportunistic infections and survival of SIV-infected RMs. These results reveal novel mechanisms by which PD-1 blockade enhances survival of SIV-infected RMs and have implications for development of novel therapeutic approaches to control HIV/AIDS.
PD-1 blockade during chronic SIV infection reduces hyperimmune activation and microbial translocation in rhesus macaques.
Specimen part, Disease, Disease stage, Treatment
View Samples