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Deng W, Wu L, Xiao Z, Li Y, Zheng Z, Chen S. Structural Characterization and Anti-Inflammatory Activity of Polysaccharides from Tremella fuciformis on Monosodium Urate-Stimulated RAW264.7 Macrophages. Foods 2023; 12:4398. [PMID: 38137202 PMCID: PMC10743196 DOI: 10.3390/foods12244398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 11/23/2023] [Accepted: 11/30/2023] [Indexed: 12/24/2023] Open
Abstract
The structural characteristics and anti-inflammatory activity of Tremella fuciformis polysaccharides (TFPs) were investigated. The study showed that TFPs were mainly composed of mannose, rhamnose, glucuronic acid, glucose, galactose, xylose, and fucose. TFPs significantly inhibited monosodium urate (MSU)-induced inflammation of RAW264.7 cells, as well as the secretion levels of TNF-α, IL-1β, and IL-18 cytokines. The concentrations of malondialdehyde and reactive oxygen species in RAW264.7 macrophages were reduced, but superoxide dismutase activity was increased. RNA-Seq technology was applied to explore the mechanisms of TFPs ameliorating MSU-induced inflammation of RAW264.7 macrophages. Results revealed that TFPs significantly reduce MSU-stimulated inflammatory damage in RAW 264.7 cells by inhibiting signaling pathways like the hypoxia inducible factor-1 (HIF-1) signaling pathway and erythroblastic oncogene B (ErbB) signaling pathway. This study provides a foundation for TFPs to be developed as novel anti-inflammatory drugs.
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Affiliation(s)
- Wei Deng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.D.); (Z.Z.)
| | - Li Wu
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China; (L.W.); (Z.X.); (S.C.)
- National Research and Development Center of Edible Fungus Processing Technology, Fuzhou 350003, China
- Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Coconstruction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350003, China
- Fujian Key Laboratory of Agricultural Product (Food) Processing, Fuzhou 350003, China
| | - Zheng Xiao
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China; (L.W.); (Z.X.); (S.C.)
- National Research and Development Center of Edible Fungus Processing Technology, Fuzhou 350003, China
- Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Coconstruction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350003, China
- Fujian Key Laboratory of Agricultural Product (Food) Processing, Fuzhou 350003, China
| | - Yibin Li
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China; (L.W.); (Z.X.); (S.C.)
- National Research and Development Center of Edible Fungus Processing Technology, Fuzhou 350003, China
- Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Coconstruction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350003, China
- Fujian Key Laboratory of Agricultural Product (Food) Processing, Fuzhou 350003, China
| | - Zhipeng Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; (W.D.); (Z.Z.)
| | - Shouhui Chen
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China; (L.W.); (Z.X.); (S.C.)
- National Research and Development Center of Edible Fungus Processing Technology, Fuzhou 350003, China
- Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Coconstruction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350003, China
- Fujian Key Laboratory of Agricultural Product (Food) Processing, Fuzhou 350003, China
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Sun Y, Zhou S, Zhu B, Li F, Fu K, Guo Y, Men J, Han J, Zhang W, Yang L, Zhou B. Multi- and Transgenerational Developmental Impairments Are Induced by Decabromodiphenyl Ethane (DBDPE) in Zebrafish Larvae. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2023; 57:2887-2897. [PMID: 36779393 DOI: 10.1021/acs.est.3c00032] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
A novel brominated flame retardant decabromodiphenyl ethane (DBDPE) has become a ubiquitous emerging pollutant; hence, the knowledge of its long-term toxic effects and underlying mechanism would be critical for further health risk assessment. In the present study, the multi- and transgenerational toxicity of DBDPE was investigated in zebrafish upon a life cycle exposure at environmentally relevant concentrations. The significantly increased malformation rate and declined survival rate specifically occurred in unexposed F2 larvae suggested transgenerational development toxicity by DBDPE. The changing profiles revealed by transcriptome and DNA methylome confirmed an increased susceptibility in F2 larvae and figured out potential disruptions of glycolipid metabolism, mitochondrial energy metabolism, and neurodevelopment. The changes of biochemical indicators such as ATP production confirmed a disturbance in the energy metabolism, whereas the alterations of neurotransmitter contents and light-dark stimulated behavior provided further evidence for multi- and transgenerational neurotoxicity in zebrafish. Our findings also highlighted the necessity for considering the long-term impacts when evaluating the health of wild animals as well as human beings by emerging pollutants.
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Affiliation(s)
- Yumiao Sun
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Shanqi Zhou
- Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Biran Zhu
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Fan Li
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kaiyu Fu
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yongyong Guo
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Jun Men
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Jian Han
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Wei Zhang
- Key Laboratory of Environmental Risk Assessment and Control on Chemical Process, School of Resource and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Lihua Yang
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
| | - Bingsheng Zhou
- Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
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Yoshizawa R, Umeki N, Yamamoto A, Okada M, Murata M, Sako Y. p52Shc regulates the sustainability of ERK activation in a RAF-independent manner. Mol Biol Cell 2021; 32:1838-1848. [PMID: 34260260 PMCID: PMC8684710 DOI: 10.1091/mbc.e21-01-0007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
p52SHC (SHC) and GRB2 are adaptor proteins involved in the RAS/MAPK (ERK) pathway mediating signals from cell-surface receptors to various cytoplasmic proteins. To further examine their roles in signal transduction, we studied the translocation of fluorescently labeled SHC and GRB2 to the cell surface, caused by the activation of ERBB receptors by heregulin (HRG). We simultaneously evaluated activated ERK translocation to the nucleus. Unexpectedly, the translocation dynamics of SHC were sustained when those of GRB2 were transient. The sustained localization of SHC positively correlated with the sustained nuclear localization of ERK, which became more transient after SHC knockdown. SHC-mediated PI3K activation was required to maintain the sustainability of the ERK translocation regulating MEK but not RAF. In cells overexpressing ERBB1, SHC translocation became transient, and the HRG-induced cell fate shifted from a differentiation to a proliferation bias. Our results indicate that SHC and GRB2 functions are not redundant but that SHC plays the critical role in the temporal regulation of ERK activation.
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Affiliation(s)
- Ryo Yoshizawa
- Cellular Informatics Lab, RIKEN, Wako, Saitama 351-0198, Japan.,Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Nobuhisa Umeki
- Cellular Informatics Lab, RIKEN, Wako, Saitama 351-0198, Japan
| | | | - Mariko Okada
- Institute for Protein Research, Osaka University, Suita, Osaka 565-0871, Japan.,Center for Drug Design and Research, National Institutes of Biomedical Innovation, Health and Nutrition, Ibaraki 567-0085, Japan
| | - Masayuki Murata
- Department of Life Sciences, Graduate School of Arts and Sciences, The University of Tokyo, Komaba, Meguro, Tokyo 153-8902, Japan
| | - Yasushi Sako
- Cellular Informatics Lab, RIKEN, Wako, Saitama 351-0198, Japan
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