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Particulate matter (PM)2.5 affects keratinocytes via endoplasmic reticulum (ER) stress-mediated suppression of apoptosis

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Abstract

Background

Particulate matter (PM)2.5 is a concern for public health nowadays. Although few studies have reported the skin diseases associated with PM2.5, its effects on keratinocytes have yet to be elucidated.

Objective

The goal of this experiment was to analyze and identify the changes of gene expression in PM2.5-treated keratinocytes using RNA-sequencing (RNA-Seq) data.

Results

PM2.5-treated keratinocytes exhibited changes in cell cycle-related genes as well as genes involved in DNA replication, endoplasmic reticulum (ER) stress, intrinsic apoptosis, and immune response. A total of 669 genes showed changes in gene expression in PM2.5-treated keratinocytes, including 304 upregulated and 365 downregulated genes.

Conclusion

Unlike other studies investigating skin disorders associated with PM2.5, our study found the mechanism of apoptosis suppression in keratinocytes. The findings may provide a novel insight into the management of chronic skin diseases in relation to PM2.5.

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Acknowledgements

This work was supported by the National Research Foundation of Korea Grant (NRF), funded by the Korean Government (NRF-2016R1C1B1014180) and Korea University Grants.

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    Authors and Affiliations

    1. Laboratory of Cell Signaling and Nanomedicine, Department Dermatology, Korea University College of Medicine, Ansan, Korea

      J. H. Kim, J. W. Son, J. Kim, M. G. Kim, S. H. Jeong, T. J. Park, S. W. Son & H. J. Ryu

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    1. J. H. Kim
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    2. J. W. Son
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    3. J. Kim
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    Contributions

    Every author has made substantial contributions to this manuscript by making the conception and design of the study (SJW, KJ, KMG), acquisition of data (KJH, PTJ), and drafting and revision of this article (SSW, RHJ).

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    Correspondence to S. W. Son or H. J. Ryu.

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    All of the authors declare no conflicts of interest.

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    All the experimental procedures were performed in accordance with the ethical standards as recommended by the International Committee of Medical Journal Editors.

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    Kim, J.H., Son, J.W., Kim, J. et al. Particulate matter (PM)2.5 affects keratinocytes via endoplasmic reticulum (ER) stress-mediated suppression of apoptosis. Mol. Cell. Toxicol. 16, 129–137 (2020). https://doi.org/10.1007/s13273-019-00065-6

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