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Gene expression profiles in rat alveolar macrophages exposure to cellulose nanofibrils, microcrystalline cellulose, and lipopolysaccharide.

ABSTRACT: Gene expression profiles in rat alveolar macrophages exposure to cellulose nanofibrils, microcrystalline cellulose, and lipopolysaccharide.

PROVIDER: PRJNA1009884 | ENA |

REPOSITORIES: ENA

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Gene expression profiles in rat alveolar macrophages exposure to cellulose nanofibrils, microcrystalline cellulose, and lipopolysaccharide.

Project description:To assess the biological impact of cellulose nanofibrils (CNFs) at the transcriptional level, we conducted whole-genome microarray analyses on rat alveolar macrophages (NR8383) exposed to CNFs with varying physicochemical properties. The findings were compared with those from exposure to microcrystalline cellulose (MCC) and lipopolysaccharide (LPS).

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Gene expression profiles in human bronchial epithelial cells exposure to cellulose nanofibrils and microcrystalline cellulose

Project description:To evaluate the biological impact of cellulose nanofibrils (CNFs) at the transcriptional level, we conducted whole-genome microarray analyses on human bronchial epithelial cells (BEAS-2B) exposed to CNFs with different physicochemical properties. The results were compared with those from exposures to microcrystalline cellulose (MCC).

2024-11-20 | GSE282018 | GEO

Data expression in alveolar macrophages induced by lipopolysaccharide in humans

Project description:Rationale: Lipopolysaccharide (LPS) is ubiquitous in the environment. Inhalation of LPS has been implicated in the pathogenesis and/or severity of several lung diseases, including pneumonia, chronic obstructive pulmonary disease and asthma. Alveolar macrophages are the main resident leukocytes exposed to inhaled antigens. Objectives: To obtain insight into which innate immune pathways become activated within human alveolar macrophages upon exposure to LPS in vivo. In seven healthy humans sterile saline was instilled into a lung segment by bronchoscope, followed by instillation of LPS into the contralateral lung. Six hours later a bilateral bronchoalveolar lavage was performed and whole-genome transcriptional profiling was done (Affymetrix HG-U133 Plus 2.0) on purified alveolar macrophages, comparing cells exposed to saline or LPS from the same individuals.

2012-09-15 | E-GEOD-40885 | biostudies-arrayexpress

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Gene expression profiles in human bronchial epithelial cells exposure to cellulose nanofibrils and microcrystalline cellulose

Project description:Gene expression profiles in human bronchial epithelial cells exposure to cellulose nanofibrils and microcrystalline cellulose

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Expression data from lipopolysaccharide treated and untreated equine alveolar macrophages and basal comparison with peritoneal macrophages

Project description:Alveolar macrophages are the first line of defense against pathogens in the lungs of all mammalian species and therefore may constitute an appropriate therapeutic target cell in the treatment and prevention of opportunistic airway infections. Analysis of alveolar macrophages from several species has revealed a unique cellular phenotype and transcriptome, presumably linked to their distinct airway environment and function in host defense. The current study extends these findings to the horse. Firstly, the transcriptome of equine alveolar macrophages was compared to that of equine peritoneal macrophages. This comparison revealed the differential basal expression of 451 genes. Gene expression analysis revealed an alternative macrophage polarisation profile in alveolar macrophages and a hybrid macrophage activation profile in peritoneal macrophages, a phenomenon potentially attributable to a degree endotoxin tolerance. Secondly, the change in gene expression profile of equine AMs following lipopolysaccharide stimulation was investigated. This revealed a significant change in the expression of 240 genes, including well known upregulated inflammatory genes.

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Generation of Alveolar Assembloids (AlvAssemb) with Functional Alveolar-like Macrophages

Project description:Within the human lung, interplay between alveolar epithelial cells and resident macrophages shape lung development and function in both health and disease. To study these processes, we devised a strategy for co-culturing hPSC-derived alveolar epithelial organoids and induced macrophages to form functional environment, which we name alveolar assembloids (AlvAssemb). By scRNAseq and functional analysis of AlvAssemb, we identified alveolar type 2-like cells that produced GM-CSF, a response associated with tissue adaptation of macrophages, and that resident alveolar macrophage-like cells secreted interleukin-1β and interleukin-6, a core immune response function, and expressed genes required for surfactant metabolism. Remarkably, in response to alveolar epithelial injury, we found that macrophage-like cells within AlvAssemb efficiently eliminated damaged cells and absorbed oxidized lipids. Moreover, in response to lipopolysaccharide exposure and Mycobacterium tuberculosis infection, we found that core features of the human respiratory defense response were replicated in AlvAssemb. These findings support that AlvAssemb could serve as a valuable platform to investigate human lung development and pathology.

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Gene expression profiles in rat alveolar macrophages exposure to multi-walled carbon nanotubes

Project description:To evaluate the biological effects at the transcriptional level of manufactured nanomaterials, we performed whole genome microarrays of rat alveolar macrophages (NR8383) exposed to multi-walled carbon nanotubes (MWCNTs) with different physicochemical properties.

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Gene expression profiles in rat alveolar macrophages exposure to single carbon nanotubes II

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