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Title: | Selenium nanoparticles (SeNPs) immunomodulation is more than redox improvement : serum proteomics and transcriptomic analyses | Authors: | Xia, IF Kong, HK Wu, MMH Lu, Y Wong, KH Kwok, KWH |
Issue Date: | May-2022 | Source: | Antioxidants, May 2022, v. 11, no. 5, 964 | Abstract: | Selenium nanoparticles (SeNPs) are a novel elemental form selenium and often reported to possess beneficial bioactivities such as anticancer, promoting bone growth and immunomodu-lation. Our previous study demonstrated that chitosan-stabilized SeNPs have strong activity in immunomodulation. However, the mechanism underlying the immunomodulation of SeNPs is still unknown. The aim of this study is to identify the molecular mechanisms involved in SeNP-induced immunomodulation. Using zebrafish, as a common immunological animal model with a highly conserved molecular mechanism with other vertebrates, we conducted serum proteomic and tissue transcriptome analyses on individuals fed with SeNP in healthy or disease conditions. We also compared differences between SeNPs and an exogenous antioxidant Trolox in immune activity and redox regulation. Our results suggest that the immunomodulation activity was highly related to antioxidant activity and lipid metabolism. Interestingly, the biological functions enhanced by SeNP were almost identical in the healthy and disease conditions. However, while the SeNP was suppressing ROS in healthy individuals, it promoted ROS formation during disease condition. This might be related to the defense mechanism against pathogens. SOD and NFkβ appeared to be the key molecular switch changing effect of SeNPs when individuals undergo infection, indicating the close relationship between immune and redox regulation. | Keywords: | Antioxidant Infection Lipid metabolism Orbitrap tandem mass spectrometry |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Antioxidants | ISSN: | 2076-3921 | DOI: | 10.3390/antiox11050964 | Rights: | © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). The following publication Xia, I. F., Kong, H. K., Wu, M. M. H., Lu, Y., Wong, K. H., & Kwok, K. W. (2022). Selenium Nanoparticles (SeNPs) Immunomodulation Is More Than Redox Improvement: Serum Proteomics and Transcriptomic Analyses. Antioxidants, 11(5), 964 is available at https://doi.org/10.3390/antiox11050964 |
Appears in Collections: | Journal/Magazine Article |
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