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Gene expression modification in lungs of rats exposed to TiO2 by inhalation

ABSTRACT: Gene expression modification in lungs of rats exposed to TiO2 by inhalation

PROVIDER: PRJNA671874 | ENA |

REPOSITORIES: ENA

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Gene expression modification in lungs of rats exposed to TiO2 by inhalation

Project description:In this work we study the pulmonary toxicological properties of titanium dioxide using molecular toxicological approache. For this, we exposed Sprague Dawley rats by inhalation. Lung samples have been collected up to 180 days after the end of exposure and transcriptomics analysis were performed.

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Lungs of mice exposed to subtoxic doses of nano-titanium dioxide particles by inhalation

Project description:Acute phase reactants serum amyloid A-1, 3 and micro RNA-135b, -449a, and -1 are induced in lungs of mice exposed to subtoxic doses of nano-titanium dioxide particles by inhalation In the present study we investigate pulmonary mRNA and miRNA profiles of mice exposed to subtoxic dose of nano-titanium dioxide particles by inhalation. We show dramatic induction of acute phase reactants, chemoattractants, immune and host defence related genes. We also demonstrate for the first time changes in miRNA profiles in the lungs in response to nanoTiO2. Keywords: Toxicology, disease state analysis, biomarkers of health effects

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TiO2-induced gene expression profiles in rat lung: a subacute inhalation study.

Project description:In this work we study the pulmonary toxicological properties of titanium dioxide using conventional and molecular toxicological approaches. For this, we exposed Fischer 344 rats by nose-only inhalation 6 hours/day, 5 days/week for 4 weeks to a nanoaerosol of TiO2 (10 mg/m3). Lung samples have been collected up to 180 days after the end of exposure. Biochemical and cytological analyses of the broncho-alveolar lavage fluid (BALF) were performed. In addition, transcriptomic and proteomic approaches were realised in the lung and BALF respectively.

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An Adaptive Response through N6-Methyladenosine in Fetal Offspring following Gestational Nano-TiO2 Inhalation Exposure II

Project description:Background: N6-methyladenosine (m6A) is the most prominent epitranscriptomic modification to RNA in eukaryotes, but it’s role in adaptive changes within the gestational environment are poorly understood. Nano titanium dioxide (TiO2) exposure is common during pregnancy, though the impact fetal progeny is not entirely understood. We propose that gestational exposure to nano-TiO2 contributes to cardiac m6A methylation in fetal offspring and indirectly contributes to mitochondrial dysfunction.

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An Adaptive Response through N6-Methyladenosine in Fetal Offspring following Gestational Nano-TiO2 Inhalation Exposure I

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