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Chen Q, Pan XH, Wang QH, Bai JJ, Jiang LQ, Li YH, Zhao Y, Xie XD, Qin Y, Hu TJ. Sophora subprostrate polysaccharide targets LncRNA MSTRG.5823.1 to suppress PCV2-mediated immunosuppression via TNF/NF-κB signaling. Int Immunopharmacol 2024; 139:112701. [PMID: 39024747 DOI: 10.1016/j.intimp.2024.112701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 06/26/2024] [Accepted: 07/13/2024] [Indexed: 07/20/2024]
Abstract
Current evidence suggests that porcine circovirus type 2 (PCV2) infection induces immunosuppression in piglets. Sophora subprostrate polysaccharide (SSP) exhibits various pharmacological activities, including immunoregulatory, anti-inflammatory, antiviral, and antioxidant properties. However, the acts of lncRNAs in regulating the therapeutic effects of SSP on PCV2-infected RAW264.7 cells remains poorly understood. This study aimed to investigate the molecular mechanisms by which lncRNAs regulate PCV2-induced immunosuppression during SSP treatment. Our findings revealed that 1699 mRNAs, 373 lncRNAs, and 129 miRNAs were differentially expressed in PCV2-infected RAW264.7 cells. Additionally, 359 mRNAs, 271 lncRNAs, and 79 miRNAs exhibited differential expression in SSP-treated PCV2-infected RAW264.7 cells. GO and KEGG analyses indicated that the candidate genes were enriched in the TNF/NF-κB signaling pathway. Furthermore, based on GO and KEGG pathway analysis, a ceRNA network involving chemokine (C-X-C motif) ligand 2 (CXCL2), miR-217-x, and MSTRG.5823.1 was constructed. We demonstrated that lncRNA MSTRG.5823.1 localized to the cytoplasm. Moreover, we found that silencing or overexpressing lncRNA MSTRG.5823.1 significantly modulated PCV2-induced immunosuppression by regulating the activation of the TNF/NF-κB signaling pathway. Specifically, lncRNA MSTRG.5823.1 overexpression increased the expression of TNF/NF-κB signaling pathway-related genes and proteins in PCV2-infected RAW264.7 cells. Conversely, silencing lncRNA MSTRG.5823.1 decreased their expression. Rescue assays further revealed that the suppressive effects of miR-217-x overexpression on TNF/NF-κB signaling pathway-related genes and proteins could be reversed by MSTRG.5823.1 overexpression. These findings highlight the critical role of lncRNA MSTRG.5823.1 in PCV2 infection progression and suggest a new strategy for the prevention and treatment of PCV2 infection.
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Affiliation(s)
- Qi Chen
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Xian-Hui Pan
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China; Guangxi Academy of Fishery Sciences, Nanning 530021, PR China
| | - Qiu-Hua Wang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Jing-Jing Bai
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Li-Qun Jiang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Yan-Hua Li
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Yi Zhao
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Xiao-Dong Xie
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Yang Qin
- Affiliated Hospital of Guizhou Medical University 550001, PR China.
| | - Ting-Jun Hu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China.
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Zhao Y, Jia N, Xie X, Chen Q, Hu T. Whole Transcriptome Analysis of Intervention Effect of Sophora subprostrate Polysaccharide on Inflammation in PCV2 Infected Murine Splenic Lymphocytes. Curr Issues Mol Biol 2023; 45:6067-6084. [PMID: 37504299 PMCID: PMC10377888 DOI: 10.3390/cimb45070383] [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: 06/17/2023] [Revised: 07/13/2023] [Accepted: 07/18/2023] [Indexed: 07/29/2023] Open
Abstract
(1) Background: Sophora subprostrate, is the dried root and rhizome of Sophora tonkinensis Gagnep. Sophora subprostrate polysaccharide (SSP1) was extracted from Sophora subprostrate, which has shown good anti-inflammatory and antioxidant effects. Previous studies showed SSP1 could modulate inflammatory damage induced by porcine circovirus type 2 (PCV2) in murine splenic lymphocytes, but the specific regulatory mechanism is unclear. (2) Methods: Whole transcriptome analysis was used to characterize the differentially expressed mRNA, lncRNA, and miRNA in PCV2-infected cells and SSP1-treated infected cells. Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) and other analyses were used to screen for key inflammation-related differentially expressed genes. The sequencing results were verified by RT-qPCR, and western blot was used to verify the key protein in main enriched signal pathways. (3) Results: SSP1 can regulate inflammation-related gene changes induced by PCV2, and its interventional mechanism is mainly involved in the key differential miRNA including miR-7032-y, miR-328-y, and miR-484-z. These inflammation-related genes were mainly enriched in the TNF signal pathway and NF-κB signal pathway, and SSP1 could significantly inhibit the protein expression levels of p-IκB, p-p65, TNF-α, IRF1, GBP2 and p-SAMHD1 to alleviate inflammatory damage. (4) Conclusions: The mechanism of SSP1 regulating PCV2-induced murine splenic lymphocyte inflammation was explored from a whole transcriptome perspective, which provides a theoretical basis for the practical application of SSP1.
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Affiliation(s)
- Yi Zhao
- College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Nina Jia
- College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Xiaodong Xie
- College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Qi Chen
- College of Animal Science and Technology, Guangxi University, Nanning 530005, China
| | - Tingjun Hu
- College of Animal Science and Technology, Guangxi University, Nanning 530005, China
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Yang J, Cao MX, Hu WY, Wei YY, Hu TJ. Sophorasubprosrate polysaccharide suppress the inflammatory reaction of RAW264.7 cells infected with PCV2 via regulation NF-κB/MAPKs/c-Jun signal pathway and histone acetylation modification. Int J Biol Macromol 2020; 159:957-965. [PMID: 32442564 DOI: 10.1016/j.ijbiomac.2020.05.128] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/08/2020] [Accepted: 05/15/2020] [Indexed: 12/26/2022]
Abstract
The purpose of this study was to investigate the regulation of Sophorasubprosrate polysaccharide (SSP) on inflammatory response and histone acetylation modification of RAW264.7 cells (mouse mononuclear macrophage cell line) infected with porcine circovirus type 2 (PCV2). We further explored the role of inflammatory response and histone acetylation modification on the basis of the original study. The results showed that SSP decreased the secretion levels of TNF-α and IL-6 and the intracellular iNOS, COX-2 enzyme activities and their mRNA expression levels in PCV2 infected RAW264.7 cells, but increased the level of IL-10 secretion and its mRNA expression. SSP inhibited the phosphorylation levels of proteins of p65, ERK1/2, p38 and c-Jun in RAW264.7 cells infected with PCV2. The activities of HAT and HDAC enzymes and the mRNA expression levels of HAT1 and HDAC1 were increased when the PCV2-infected RAW264.7 cells were treated by SSP. Meanwhile, the expression of acetylation modification of histones both H3 and H4 was obviously inhibited. In conclusion, SSP may reduce the acetylation levels of both H3 and H4 and activate NF-κB/MAPKs/c-Jun signaling pathway by increasing the activity of HADC enzyme and the expression of HDAC mRNA, further inhibiting inflammatory response by regulating the gene expression levels of inflammatory factors. The findings indicated that the molecular mechanism of how traditional Chinese medicine polysaccharide regulates inflammatory signal pathways and inflammatory factors by regulating histone acetylation.
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Affiliation(s)
- Jian Yang
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China; School of Life Sciences, Longyan University, Longyan 364000, PR China; Fujian Key Laboratory of Preventive Veterinary Medicine and Biotechnology, Longyan University, Longyan 364000, PR China
| | - Mi-Xia Cao
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Wen-Yue Hu
- School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, Shanghai 200030, PR China
| | - Ying-Yi Wei
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China
| | - Ting-Jun Hu
- College of Animal Science and Technology, Guangxi University, Nanning 530004, PR China.
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Liu M, Gong X, Quan Y, Zhou Y, Li Y, Peng C. A Cell-Based Metabonomics Approach to Investigate the Varied Influences of Chrysophanol-8-O-β-D-Glucoside With Different Concentrations on L-02 Cells. Front Pharmacol 2019; 9:1530. [PMID: 30687094 PMCID: PMC6333758 DOI: 10.3389/fphar.2018.01530] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Accepted: 12/13/2018] [Indexed: 01/17/2023] Open
Abstract
In this study, the effects of different concentrations of chrysophanol-8-O-β-D-glucoside (C-8-O-β-D-glu) on L-02 liver cells were analyzed by high content analysis (HCA) and metabonomics to explore the potential mechanism involved. The results showed that low concentrations (12 and 24 μM) of C-8-O-β-D-glu increased the cells viability significantly, while high concentration (96 μM) showed significant cytotoxicity on L-02 cells. HCA was applied to analyze the changes of nuclei and mitochondria after the cells being exposed to C-8-O-β-D-glu for 24 h. The results showed high concentration (96 μM) of C-8-O-β-D-glu significantly reduced the number of living cells, increased average nucleus area, DNA content and mitochondrial membrane potential (MMP). Then non-target metabonomics was carried out to identify potential biomarkers and metabolic pathways of L-02 cells impacted by C-8-O-β-D-glu. Eleven important potential biomarkers associated with four metabolic pathways were identified in this analysis. Dysregulation of alanine, aspartate and glutamate metabolism were observed in both LCG and HCG. In addition, low concentration (24 μM) of C-8-O-β-D-glu would impact arginine and proline metabolism. High concentration (96 μM) of C-8-O-β-D-glu would impact phenylalanine metabolism and beta-alanine metabolism. Alanine, aspartate and glutamate metabolism, arginine and proline metabolism, phenylalanine metabolism, beta-alanine metabolism were involved in different effects of C-8-O-β-D-glu on L-02 cells.
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Affiliation(s)
| | | | | | | | - Yunxia Li
- Pharmacy College, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Cheng Peng
- Pharmacy College, State Key Laboratory Breeding Base of Systematic Research, Development and Utilization of Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Li H, Ding F, Xiao L, Shi R, Wang H, Han W, Huang Z. Food-Derived Antioxidant Polysaccharides and Their Pharmacological Potential in Neurodegenerative Diseases. Nutrients 2017; 9:E778. [PMID: 28753972 PMCID: PMC5537892 DOI: 10.3390/nu9070778] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 07/10/2017] [Accepted: 07/13/2017] [Indexed: 12/29/2022] Open
Abstract
Oxidative stress is known to impair architecture and function of cells, which may lead to various chronic diseases, and therefore therapeutic and nutritional interventions to reduce oxidative damages represent a viable strategy in the amelioration of oxidative stress-related disorders, including neurodegenerative diseases. Over the past decade, a variety of natural polysaccharides from functional and medicinal foods have attracted great interest due to their antioxidant functions such as scavenging free radicals and reducing oxidative damages. Interestingly, these antioxidant polysaccharides are also found to attenuate neuronal damages and alleviate cognitive and motor decline in a range of neurodegenerative models. It has recently been established that the neuroprotective mechanisms of polysaccharides are related to oxidative stress-related pathways, including mitochondrial function, antioxidant defense system and pathogenic protein aggregation. Here, we first summarize the current status of antioxidant function of food-derived polysaccharides and then attempt to appraise their anti-neurodegeneration activities.
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Affiliation(s)
- Haifeng Li
- Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
- School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| | - Fei Ding
- Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Lingyun Xiao
- School of Pharmaceutical Sciences, Wuhan University, Wuhan 430071, China.
| | - Ruona Shi
- Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Hongyu Wang
- Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Wenjing Han
- Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
| | - Zebo Huang
- Center for Bioresources & Drug Discovery and School of Biosciences & Biopharmaceutics, Guangdong Pharmaceutical University, Guangzhou 510006, China.
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