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Pig-specific skin transcriptional responses after intradermal administration of flagellin

ABSTRACT: The study aimed at defining the skin innate responses after intradermal injection of flagellin. For this purpose, pigs were immunized by intradermal route with flagellin and H1N1 antigen. Skin was then sampled for microarray analyses.

ORGANISM(S): Sus scrofa

PROVIDER: GSE72256 | GEO | 2016/01/31

SECONDARY ACCESSION(S): PRJNA293474

REPOSITORIES: GEO

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Mouse-specific skin and blood transcriptional responses after intradermal administration of flagellin

2016-01-01 | GSE72016 | GEO

Mouse-specific skin and blood transcriptional responses after intradermal administration of flagellin

Project description:The study aimed at defining the local and systemic innate responses after intradermal injection of flagellin. For this purpose, mice were immunized by intradermal route with flagellin. Skin and blood were then sampled at selected times for microarray analyses. Mice were then immunized with the TLR5 agonist flagellin by intradermal route. Blood samples and punch biopsies of skin were sampled post-immunization and on mock animals. Total RNA was extracted and microarray experiments were performed as single-color hybridizations on Agilent 4x44K mouse whole genome catalog arrays (Agilent-014868) according supplier's recommendations.

2016-07-03 | E-GEOD-72016 | biostudies-arrayexpress

Route specific dermal responses to vaccinia virus infection

Project description:Transcriptional profiles of rabbit skin infected via the intradermal or scarification route of infeciton assessing the early time post infection. Transcriptional profiles were assessed at 4hrs, 24hrs, and 48hrs post infection for each route of infection. Transcript variation is as compared to normal, uninfected rabbit skin.

2014-05-13 | GSE57564 | GEO

To compare the expression profile of CD8 T cells from mice vaccinated with Ad85A via the intranasal (IN) or intradermal (ID) routes isolated from lungs or spleen.

Project description:In Balb/c mice, the presence of effector CD8 T cells in lungs after intra-nasal (IN) immunization with replication deficient recombinant Adenovirus expressing the 85A antigen from Mycobacterium tuberculosis (MTb) (Ad85A) correlates with protection against aerosol MTb infection. In order to identify differentially expressed transcripts which contribute to protection by IN immunized lung CD8 T cells, total RNA from CD8 T cells isolated from target tissue (lungs) and lymphoid organ (spleen ) after a protective (IN) and non-protective (intradermal, ID) immunization regime will be analyzed in a whole-genome microarray study. Total RNA from CD8 T cells isolated from lungs or spleens of Balb/c mice 3 weeks post-immunization with Ad85A through the IN (protective) or ID (non-protective) route will be compared.

2010-08-24 | E-GEOD-23713 | biostudies-arrayexpress

Airway administration of flagellin regulates the inflammatory response to Pseudomonas aeruginosa

Project description:Here, we aim to understand the role of P38 in the airway epithelial cells response to flagellin. We report the gene expression profile of pig airway epithelial cells cultured under air-liquid conditions, pre-incubated or not with the P38 inhibitor SB203580 (20 µM, Tocris Bioscience) for 1 h and then stimulated with 100 ng/ml of a mutated flagellin (FliCΔ174-400) for 2h or 24h. Our data show that flagellin stimulation induce the expression of pro-inflammatory cytokines mainly through the NFkB pathway, with little impact of P38 inhibition in the cells response.

2022-05-21 | GSE173768 | GEO

Route specific dermal responses to vaccinia virus infection

2014-05-13 | E-GEOD-57564 | biostudies-arrayexpress

Lung conventional dendritic cells promote mucosal adjuvant activity of flagellin

Project description:The activity of the potent nasal adjuvant flagellin depends on initial activation of airway epithelilal cells. This study aims at investigating the immune cells involved in the antigen presentation within the respiratory tract. First, microarrays characterized that activation/recruitment of immune cells was the main signature of flagellin activation in lung. Neutrophils and classical monocytes were strongly recruited into the lungs and take up antigen upon nasal administration of flagellin. In contrast, the numbers of lung CD11b+ or CD103+ DC and alveolar macrophages were not enhanced although these cells were very efficient in antigen uptake. Our experiments showed that CD11b+ DC but not monocytes, PMN, CD103+ DC are not essential for the adjuvant effect. Flagellin signaling enhanced the functional activation of lung CD11b+ conventional DC and their migration to the lymph nodes. Using Cd11c-DTR mice, CD11b+ DC from lymph nodes were identified as the major stimulators of CD4 T cell activation. Finally, the migration and maturation of mucosal DC was independent of direct signaling, highlighting the contribution of epithelial factors in the mucosal adjuvant effect of flagellin. In conclusion, these data demonstrate that adjuvant activity can be dissociated from inflammatory cell recruitment an open new perpectives for improvement of vaccines. Female C57BL/6J (6 weeks old) mice were immunized with the TLR5 agonist Flagellin (1Î¼g diluted in PBS) by intranasal (i.n.) administration. Blood samples of four time points post immunization were taken at 2h, 4h, 18h and 48h. Microarray experiments were performed as single-color hybridizations.

2014-01-01 | E-GEOD-46421 | biostudies-arrayexpress

Innate gene signature distinguishes humoral versus cytotoxic responses to influenza vaccination

Project description:Whole blood transcriptomics analysis of healthy individuals, immunized with the trivalent 2012-2013 season flu vaccine via transcutaneous, intramuscular or intradermal route. We define an early gene expression profile, detected at day 1 after immunization, that is associated with the development of either humoral or cytotoxic CD8 T cell responses. We used System Biology approach to analyse vaccine efficacy in order to find innate predictive biomarkers of the quality of adaptive responses for potential clinical use in the future. Moreover, from a methodological point of view this study increases knowledges on how vaccine route(s) can affect resulting immune responses and into mechanisms involved in the induction of humoral and cellular immunity to influenza vaccination.

2019-07-01 | E-MTAB-7741 | biostudies-arrayexpress

Effect of Intradermal Immunotherapy (IDIT) injections on gene expression profiles of activated T cells derived from skin biopsy explants

Project description:A Randomized, Placebo-Controlled Trial of Intradermal Allergen Immunotherapy for Grass Pollen Allergy Background: Repeated intradermal injection of grass pollen (nanograms of allergen) suppresses allergen-induced cutaneous late phase responses, in keeping with effects of conventional high dose subcutaneous and sublingual immunotherapy. We evaluated the efficacy and safety of grass pollen intradermal immunotherapy for treatment of allergic rhinitis.Methods: We randomly assigned 93 adults with grass pollen allergic rhinitis to receive 7 pre-seasonal Intradermal allergen immunotherapy injections (containing 7 ng of Phl p 5 major allergen) or histamine control. The primary end point was daily combined symptom-medication scores during the 2013 pollen season. Skin biopsies were taken after the pollen season following an intradermal allergen challenge. Cutaneous late phase responses were measured 4 and either 7, 10 or 13 months post-treatment. Results No difference in the primary endpoint was observed between treatment arms (median difference, 14; 95% confidence interval [CI], -172.5 to 215.1; P=0.80). Amongst secondary endpoints, nasal symptoms measured with daily scores (median difference, 35; 95% CI, 4.0 to 67.5; P=0.03) and visual-analogue scales (median difference, 53; 95% CI, -11.6 to 125.2; P=0.05) were higher in the intradermal treatment group. Intradermal immunotherapy increased serum Phl p-specific IgE (P=0.001) compared to the control arm and T cells cultured from biopsies showed higher and lower surface of surface markers for Type 2 (P=0.04) and Type 1 (P=0.01) T-helper cells, respectively, Interleukin-5 was differentially expressed by microarray (P=0.03). Late phase responses were still inhibited 7 months after treatment (P=0.03) but not at 10-13 months. Conclusions Grass pollen intradermal allergen immunotherapy was not clinically effective but resulted in immunological priming and worsening of allergic rhinitis symptoms.

2017-06-23 | GSE72324 | GEO

To compare the expression profile of CD8 T cells from mice vaccinated with Ad85A via the intranasal (IN) or intradermal (ID) routes isolated from lungs or spleen.

2010-08-24 | GSE23713 | GEO

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