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Interferon gene therapy reprograms the leukemia microenvironment inducing protective immunity to multiple tumor antigens

ABSTRACT: Interferon gene therapy reprograms the leukemia microenvironment inducing protective immunity to multiple tumor antigens

PROVIDER: PRJEB32595 | ENA |

REPOSITORIES: ENA

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Interferon gene therapy reprograms the leukemia microenvironment inducing protective immunity to multiple tumor antigens.

Project description: Not available

| S-EPMC6057972 | biostudies-literature

Interferon gene therapy reprograms the leukemia microenvironment inducing protective immunity to multiple tumor antigens

Project description:Single-cell transcriptome profiling using a 3' droplet-based platform (Chromium,10x Genomics) of CD11b+ cells isolated from the spleen of control and tumor-bearing mice, treated or not with IFN gene therapy.

2019-05-16 | E-MTAB-6487 | biostudies-arrayexpress

Protective heterologous T cell immunity in COVID-19 induced by MMR and Tdap vaccine antigens

Project description:Protective heterologous T cell immunity in COVID-19 induced by MMR and Tdap vaccine antigens

| PRJNA750464 | ENA

Immunomic identification of antigens

Project description:Immunomic screening of mice immune sera with different protection efficiencies against the whole P. yoelii 17X parasite proteome was performed to identify the repertoire of antigens recognized by those sera. The calculation of weighted scores reflecting the likelihood of protection of each antigens using five predictive criteria derived from immunomic and proteomic datasets, highlighted a priority list of protective antigens.

2019-02-15 | PXD010567 | Pride

Maternal slimming reprograms metabolic gene expression in mice offspring

Project description:This SuperSeries is composed of the following subset Series: GSE40471: Maternal slimming reprograms metabolic gene expression in mice offspring (NimbleGen expression) GSE40477: Maternal slimming reprograms metabolic gene expression in mice offspring (NimbleGen methylation) GSE40478: Maternal slimming reprograms metabolic gene expression in mice offspring (mRNA-Seq) Refer to individual Series

2012-08-30 | E-GEOD-40479 | biostudies-arrayexpress

Identification of antigens presented by MHC for vaccines against tuberculosis

Project description:The immune response against tuberculosis relies, at least in part, on CD4+ T cells. Protective vaccines require the induction of antigen-specific CD4+ T cells via mycobacterial peptides presented by MHC class-II in infected macrophages. We have purified MHC class-I and MHC-II peptides and analysed them by mass spectrometry. We have successfully identified 97 mycobacterial peptides presented by MHC-II and 54 presented by MHC-I, from 76 and 41 antigens, respectively. The sequences of selected peptides were confirmed by spectral match validation and immunogenicity evaluated by IFN-gamma ELISpot against peripheral blood mononuclear cells from volunteers vaccinated with BCG, M.tb latently infected subjects or patients with tuberculosis disease. Three antigens were expressed in viral vectors, and evaluated as vaccine candidates alone or in combination in a murine aerosol M.tb challenge model. When delivered in combination, the three candidate vaccines conferred significant protection in the lungs and spleen compared with BCG alone, demonstrating proof-of-concept for this unbiased approach to identifying novel candidate antigens.

2020-01-08 | E-MTAB-8057 | biostudies-arrayexpress

Pore-forming toxin alpha-hemolysin efficiently improve the immunogenicity and protective efficacy of protein antigens by increasing antigen uptake and targeting ADAM10

Project description:Highly immunogenic exotoxins were proved to be efficient in improving the immunogenicity of polysaccharides, traditionally known as carrier proteins. However, the efficacy of exotoxins on protein antigens remains to be excluded. In the current study, the candidate antigen PA0833 from Pseudomonas aeruginosa was fused to the α-hemolysin mutant HlaH35A from Staphylococcus aureus. After immunization with the fusion protein, increased titers of PA0833-specific antibodies and higher protective efficacy were observed, companied with decreased bacterial burden and pro-inflammatory cytokines secretion when compared with PA0833 immunization alone. Then, by using fluorescently labeled antigens to track antigen uptake and delivery, we found that fusion to HlaH35A significantly improved antigen uptake in injected muscles and antigen delivery to draining lymph nodes. Both in vivo and in vitro studies demonstrated that increased antigen uptake by fusion to HlaH35A were mainly mediated by monocytes and macrophages in a macropinocytosis dependent manner, probably due to targeting ADAM10, the host receptor of Hla. Further, transcriptome analysis was performed and the result showed that several immune signaling pathways were activated by HPF, which also shed light on the mechanism of improved immunogenicity. Finally, improvement of immunogenicity by fusion to HlaH35A was also confirmed in two other anigens, GlnH from Klebsiella pneumoniae and the model antigen OVA, which indicated that HlaH35A could serve as a universal carrier protein to improve the immunogenicity of protein antigens.

2021-02-20 | GSE167077 | GEO

Expression cloning of gamma interferon-inducing antigens of Mycobacterium avium subsp. paratuberculosis.

Project description: Not available

| S-EPMC1111817 | biostudies-literature

M. tuberculosis reprograms HSCs to limit myelopoiesis and impair trained immunity via a type I IFN/iron axis [EG_SERIES_3]

Project description:A greater understanding of hematopoietic stem cell (HSC) regulation is required for dissecting protective versus detrimental immunity to pathogens that cause chronic infections such as Mycobacterium tuberculosis (Mtb). We have shown that systemic administration of BCG or b-glucan reprograms HSCs in the BM via a type II interferon (IFN-II) or IL1 response, respectively, that confers protective trained immunity against Mtb. Yet, whether BCG/β-Glucan is unique in its ability to induce this protection remains unknown. Herein, we demonstrate that unlike BCG or b-glucan, Mtb reprograms HSCs via IFN-I response that suppresses myelopoiesis and impairs protective trained immunity to Mtb. Mechanistically, IFN-I response dysregulates iron metabolism, depolarizes mitochondrial membrane potential, and induces cell death in myeloid progenitors. Finally, activation of IFN-I/iron axis in myeloid progenitors generates a detrimental trained immunity to Mtb infection. These results identify an unanticipated immune evasion strategy of Mtb in the bone marrow that controls the magnitude and anti-microbial capacity of innate immunity to infection

2020-08-13 | GSE156136 | GEO

M. tuberculosis reprograms HSCs to limit myelopoiesis and impair trained immunity via a type I IFN/iron axis [AERO_SERIES_2]

2020-08-13 | GSE156135 | GEO

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