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Single-cell gene expression profiles of mice lung tissue under PM2.5 exposure

ABSTRACT: Numerous epidemiological studies have demonstrated a significant association between PM2.5 exposure and pulmonary diseases. PM2.5 may contribute to epithelial injury and immune dysregulation in lung cells. In this study, we provide single-cell level gene expression profiles of mouse lungs under PM2.5 exposure, offering insights into the microenvironmental alterations and physiological responses induced by PM2.5.

ORGANISM(S): Mus musculus

PROVIDER: GSE296297 | GEO | 2025/05/06

REPOSITORIES: GEO

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Project description:PM2.5 can harm various systems in the human body. However, due to the limitations of epidemiology and toxicology, the disease types, shared and specific pathogenic mechanisms induced by PM2.5 in various human systems are not comprehensive and in-depth revealed. Thus, this study conducted an analysis on the aforementioned issues in respiratory, circulatory, endocrine, female, and male urogenital systems. According to this study, PM2.5 was more likely to induce pulmonary emphysema, reperfusion injury, malignant neoplasm of thyroid, endometriosis of ovary, nephritis in above each system respectively. FOS, extracellular matrix, urogenital system development, extracellular matrix structural constituent conferring tensile strength, and ferroptosis was the most important co-existing gene, cellular component, biological process, molecular function, and pathway in five systems targeted by PM2.5. Furthermore, BTG2, BIRC5, NFE2L2, TBK1, and STAT1 were significantly uniquely targeted by PM2.5 in each system respectively. Important disease related cellular component, biological process, and molecular function were highly specially induced by PM2.5, such as response to wounding, blood vessel morphogenesis, body morphogenesis, negative regulation of response to endoplasmic reticulum stress, and response to type I interferon were the top 1 uq-existing biological processes in each system respectively. PM2.5 highly specially acted on the key disease related pathway, such as PD-L1 expression and PD-1 checkpoint pathway in cancer (respiratory), cell cycle (circulatory), apoptosis (endocrine), antigen processing and presentation (female), and neuroactive ligand-receptor interaction (male). This study provides a new analysis method to clarify PM2.5-related disease types, which is an important supplement to epidemiological investigation. Furthermore, this study has clarified the risks of PM2.5 exposure, elucidated the pathogenic mechanisms, and provided scientific support for promoting precise prevention and treatment of PM2.5-related diseases.

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Single-cell gene expression profiles of mice lung tissue under PM2.5 exposure

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