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Wang N, Zhang Z, Huang L, Chen T, Yu X, Huang Y. Current status and progress in the omics of Clonorchis sinensis. Mol Biochem Parasitol 2023; 255:111573. [PMID: 37127222 DOI: 10.1016/j.molbiopara.2023.111573] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/22/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
Clonorchis sinensis (C. sinensis) is a fish-borne trematode that inhabits the bile duct of mammals including humans, cats, dogs, rats, and so on. In the complex life cycle of C. sinensis, the worm develops successively in two intermediate hosts in fresh water and one definitive host. What's more, it undergoes eight developmental stages with a distinct morphology. Clonorchiasis, caused by C. sinensis infection, is an important food-borne parasitic disease and one of the most common zoonoses. C. sinensis infection could result in hyperplasia of the bile duct epithelium, obstructive jaundice, gall-stones, cholecystitis and cholangitis, even liver cirrhosis and cholangiocarcinoma. Thus, clonorchiasis is a serious public health problem in endemic areas. Integrated strategies should be adopted in the prevention and control of clonorchiasis due to the epidemiological characteristics. The recent advances in high-throughput technologies have made available the profiling of multiple layers of a biological system, genomics, transcriptomics, proteomics, and metabolomics. These data can help us to get more information about the development, physiology, metabolism, and reproduction of the parasite as well as pathogenesis and parasite-host interactions in clonorchiasis. In the present study, we summarized recent progresses in omics studies on C. sinensis providing insights into the studies and future directions on treating and preventing C. sinensis associated diseases.
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Affiliation(s)
- Nian Wang
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Key Laboratory for Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Provincial Engineering Technology Research Center for Diseases-vectors Control, Guangzhou 510080, Guangdong, People's Republic of China
| | - Zhuanling Zhang
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Key Laboratory for Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China
| | - Lisi Huang
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Key Laboratory for Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Department of Clinical Laboratory, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, Guangdong, People's Republic of China
| | - Tingjin Chen
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Key Laboratory for Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Provincial Engineering Technology Research Center for Diseases-vectors Control, Guangzhou 510080, Guangdong, People's Republic of China
| | - Xinbing Yu
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Key Laboratory for Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Provincial Engineering Technology Research Center for Diseases-vectors Control, Guangzhou 510080, Guangdong, People's Republic of China
| | - Yan Huang
- Department of Parasitology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Key Laboratory for Tropical Diseases Control, Ministry of Education, Sun Yat-sen University, Guangzhou 510080, Guangdong, People's Republic of China; Provincial Engineering Technology Research Center for Diseases-vectors Control, Guangzhou 510080, Guangdong, People's Republic of China.
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Wang Y, Zhang X, Wang X, Zhang N, Yu Y, Gong P, Zhang X, Ma Y, Li X, Li J. Clonorchis sinensis aggravates biliary fibrosis through promoting IL-6 production via toll-like receptor 2-mediated AKT and p38 signal pathways. PLoS Negl Trop Dis 2023; 17:e0011062. [PMID: 36693049 PMCID: PMC9873171 DOI: 10.1371/journal.pntd.0011062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Accepted: 12/27/2022] [Indexed: 01/25/2023] Open
Abstract
Clonorchis sinensis is an important food-borne zoonotic parasite which has been linked to biliary fibrosis and cholangiocarcinoma. However, the details of the pathogenesis of C. sinensis were unclear. To explore the role and regulatory mechanism of toll-like receptor 2 (TLR2) in C. sinensis-induced biliary fibrosis, we established the C. sinensis-infected C57BL/6 mouse model with TLR2-/- and wild type (WT) mice. The mortality rate, liver lesions, TLR2 and TGF-β1 expression, phosphorylation of Smad2/3, AKT, p38, ERK and p65, and cytokine productions were analyzed. Furthermore, similar parameters were examined in mouse biliary epithelial cells (BECs) co-cultured with C. sinensis excretory/secretory proteins (ESPs). The results showed that TLR2 expression was enhanced significantly in C. sinensis-infected WT mice and mouse BECs. C. sinensis-infected TLR2-/- mice exhibited an increased weight and a decreased mortality rate; significantly alleviated liver lesions and biliary fibrosis, reduced numbers of myofibroblasts; decreased expression of TGF-β1 and phosphorylation level of AKT, p38 and Smad2/3; significantly decreased production of IL-6, TNF-α and IL-4, while increased production of IFN-γ compared with C. sinensis-infected WT mice. Furthermore, C. sinensis ESPs could activate TLR2-mediated AKT and p38 pathways to increase the production of IL-6 in mouse BECs. In conclusion, these data indicate that C. sinensis infection activated TGF-β1-Smad2/3 through TLR2-mediated AKT and p38 pathways to promote IL-6 production, which resulted in myofibroblast activation and aggravating biliary fibrosis in mice.
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Affiliation(s)
- Yuru Wang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xu Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xiaocen Wang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Nan Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yanhui Yu
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Pengtao Gong
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xichen Zhang
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Yeting Ma
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
| | - Xin Li
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
- * E-mail: (JL); (XL)
| | - Jianhua Li
- Key Laboratory of Zoonosis Research, Ministry of Education; College of Veterinary Medicine, Jilin University, Changchun, China
- * E-mail: (JL); (XL)
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de Oliveira Micheletti T, Cassia dos Santos A, Rocha GZ, Silva VRR, Quaresma PGF, Assalin HB, Junqueira FS, Ropelle ER, Oliveira AG, Saad MJA, Prada PDO. Acute exercise reduces feeding by activating IL-6/Tubby axis in the mouse hypothalamus. Front Physiol 2022; 13:956116. [DOI: 10.3389/fphys.2022.956116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 09/23/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Acute exercise contributes to decreased feeding through leptin and interleukin/Janus kinase 2/signal transducers and activators of transcription 3 (IL-6/JAK2/STAT3) signaling. Considering the pleiotropic use of substrates by JAK2 and that JAK2 can phosphorylate the Tubby protein (TUB) in CHO-IR cells, we speculated that acute exercise can activate the IL-6/JAK2/TUB pathway to decrease food intake.Aims: We investigated whether acute exercise induced tyrosine phosphorylation and the association of TUB and JAK2 in the hypothalamus and if IL-6 is involved in this response, whether acute exercise increases the IL-6/TUB axis to regulate feeding, and if leptin has an additive effect over this mechanism.Methods: We applied a combination of genetic, pharmacological, and molecular approaches.Key findings: The in vivo experiments showed that acute exercise increased the tyrosine phosphorylation and association of JAK2/TUB in the hypothalamus, which reduced feeding. This response was dependent on IL-6. Leptin had no additive effect on this mechanism.Significance: The results of this study suggest a novel hypothalamic pathway by which IL-6 released by exercise regulates feeding and reinforces the beneficial effects of exercise.
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Koda S, Zhu XQ, Zheng KY, Yan C. Molecular Mechanisms of Clonorchis sinensis-Host Interactions and Implications for Vaccine Development. Front Cell Dev Biol 2022; 9:781768. [PMID: 35118069 PMCID: PMC8804234 DOI: 10.3389/fcell.2021.781768] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Accepted: 12/14/2021] [Indexed: 12/12/2022] Open
Abstract
Infections caused by Clonorchis sinensis remain a significant public health challenge for both humans and animals, causing pyogenic cholangitis, cholelithiasis, cholecystitis, biliary fibrosis, and even cholangiocarcinoma. However, the strategies used by the parasite and the immunological mechanisms used by the host have not yet been fully understood. With the advances in technologies and the accumulated knowledge of host-parasite interactions, many vaccine candidates against liver flukes have been investigated using different strategies. In this review, we explore and analyze in-depth the immunological mechanisms involved in the pathogenicity of C. sinensis. We highlight the different mechanisms by which the parasite interacts with its host to induce immune responses. All together, these data will allow us to have a better understanding of molecular mechansism of host-parasite interactions, which may shed lights on the development of an effective vaccine against C. sinensis.
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Affiliation(s)
- Stephane Koda
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
| | - Xing-Quan Zhu
- College of Veterinary Medicine, Shanxi Agricultural University, Taigu, China
| | - Kui-Yang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
- *Correspondence: Kui-Yang Zheng, ; Chao Yan,
| | - Chao Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Xuzhou Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology, National Experimental Demonstration Center for Basic Medicine Education, Xuzhou Medical University, Xuzhou, China
- *Correspondence: Kui-Yang Zheng, ; Chao Yan,
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Yan C, Fang F, Zhang YZ, Dong X, Wu J, Liu HL, Fan CY, Koda S, Zhang BB, Yu Q, Wang L, Wang YG, Chen JX, Zheng KY. Recombinant CsHscB of carcinogenic liver fluke Clonorchis sinensis induces IL-10 production by binding with TLR2. PLoS Negl Trop Dis 2020; 14:e0008643. [PMID: 33044969 PMCID: PMC7549790 DOI: 10.1371/journal.pntd.0008643] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Accepted: 07/27/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Clonorchis sinensis, a fluke dwelling in the intrahepatic bile ducts causes clonorchiasis, which affect about 15 million people wide-distributed in eastern Asia. During C. sinensis infection, worm-host interaction results in activation of patterns recognition receptors (PRRs) such as Toll-like receptors (TLRs) and further triggers immune responses, which determines the outcome of the infection. However, the mechanisms by which pathogen-associated molecules patterns from C. sinensis interact with TLRs were poorly understood. In the present study, we assumed that the molecules from C. sinensis may regulate host immune responses via TLR2 signaling pathway. METHODOLOGY/PRINCIPAL FINDINGS In the present study, we have identified a ~34 kDa CsHscB from C. sinensis which physically bound with TLR2 as demonstrated by molecular docking and pull-down assay. We also found that recombinant CsHscB (rCsHscB) potently activates macrophage to express various proteins including TLR2, CD80, MHCII, and cytokines like IL-6, TNF-α, and IL-10, but rCsHscB failed to induce IL-10 in macrophages from Tlr2-/- mice. Moreover, ERK1/2 activation was required for rCsHscB-induced IL-10 production in macrophages. In vivo study revealed that rCsHscB triggered a high production of IL-10 in the wild-type (WT) but not in Tlr2-/- mice. Consistently, the phosphorylation of ERK1/2 was also attenuated in Tlr2-/- mice compared to the WT mice, after the treatment with rCsHscB. CONCLUSIONS/SIGNIFICANCE Our data thus demonstrate that rCsHscB from C. sinensis interacts with TLR2 to be endowed with immune regulatory activities, and may have some therapeutic implications in future beyond parasitology.
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Affiliation(s)
- Chao Yan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
- National Experimental Demonstration Center for Basic Medicine Education, Department of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
| | - Fan Fang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
| | - Yu-Zhao Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
| | - Xin Dong
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
| | - Jing Wu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
| | | | - Chun-Yang Fan
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
- National Experimental Demonstration Center for Basic Medicine Education, Department of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
| | - Stephane Koda
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
| | - Bei-Bei Zhang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
- National Experimental Demonstration Center for Basic Medicine Education, Department of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
| | - Qian Yu
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
- National Experimental Demonstration Center for Basic Medicine Education, Department of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
| | - Liang Wang
- College of Bioinformatics, Xuzhou Medical University, Xuzhou, P. R. China
| | - Yu-Gang Wang
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
- National Experimental Demonstration Center for Basic Medicine Education, Department of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
| | - Jia-Xu Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory of Parasite and Vector Biology, Ministry of Health, WHO Collaborating Center of Malaria, Schistosomiasis, and Filariasis, Shanghai, P. R. China
| | - Kui-Yang Zheng
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogenic Biology and Immunology, Laboratory of Infection and Immunity, Xuzhou Medical University, Xuzhou, P. R. China
- National Experimental Demonstration Center for Basic Medicine Education, Department of Clinical Medicine, Xuzhou Medical University, Xuzhou, P. R. China
- * E-mail:
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Zhang X, Hu X, Chen R, Sun B, Gao Y, Duan S, Liu L, Han S. Perturbations of Metabolomic Profiling of Spleen From Rats Infected With Clonorchis sinensis Determined by LC-MS/MS Method. Front Mol Biosci 2020; 7:561641. [PMID: 33134312 PMCID: PMC7574862 DOI: 10.3389/fmolb.2020.561641] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 08/24/2020] [Indexed: 12/17/2022] Open
Abstract
Clonorchiasis is an important zoonotic parasitic disease worldwide. In view of the fact that parasite infection affects host metabolism, and there is an intricate relationship between metabolism and immunity. Metabolic analysis of the spleen could be helpful for understanding the pathophysiological mechanisms in clonorchiasis. A non-targeted ultra high performance liquid tandem chromatography quadrupole time of flight mass spectrometry (UHPLC-QTOF MS) approach was employed to investigate the metabolic profiles of spleen in rats at 4 and 8 weeks post infection with Clonorchis sinensis (C. sinensis). Then a targeted ultra-high performance liquid chromatography multiple reaction monitoring mass spectrometry (UHPLC-MRM-MS/MS) approach was used to further quantify amino acid metabolism. Multivariate data analysis methods, such as principal components analysis and orthogonal partial least squares discriminant analysis, were used to identify differential metabolites. Finally, a total of 396 and 242 significant differential metabolites were identified in ESI+ and ESI− modes, respectively. These metabolites included amino acids, nucleotides, carboxylic acids, lipids and carbohydrates. There were 38 significantly different metabolites shared in the two infected groups compared with the control group through the Venn diagram. The metabolic pathways analysis revealed that pyrimidine metabolism, aminoacyl-tRNA biosynthesis, purine metabolism and phenylalanine, tyrosine and tryptophan biosynthesis were significantly enriched in differential metabolites, which was speculated to be related to the disease progression of clonorchiasis. Furthermore, 15 amino acids screened using untargeted profiling can be accurately quantified and identifed by targeted metabolomics during clonrochiasis. These results preliminarily revealed the perturbations of spleen metabolism in clonorchiasis. Meanwhile, this present study supplied new insights into the molecular mechanisms of host-parasite interactions.
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Affiliation(s)
- Xiaoli Zhang
- Department of Parasitology, Harbin Medical University, Harbin, China
| | - Xinyi Hu
- Department of Parasitology, Harbin Medical University, Harbin, China
| | - Rui Chen
- Department of Orthopaedic Surgery, The Fourth Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Beibei Sun
- Department of Parasitology, Harbin Medical University, Harbin, China
| | - Yannan Gao
- Department of Parasitology, Harbin Medical University, Harbin, China
| | - Shanshan Duan
- Department of Parasitology, Harbin Medical University, Harbin, China
| | - Liyan Liu
- Department of Nutrition and Food Hygiene, School of Public Health, Harbin Medical University, Harbin, China
| | - Su Han
- Department of Parasitology, Harbin Medical University, Harbin, China
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Downregulation of Inflammatory Cytokine Release from IL-1β and LPS-Stimulated PBMC Orchestrated by ST2825, a MyD88 Dimerisation Inhibitor. Molecules 2020; 25:molecules25184322. [PMID: 32967164 PMCID: PMC7570868 DOI: 10.3390/molecules25184322] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 12/31/2022] Open
Abstract
The inflammatory process implicates homeostasis disruption and increased production of inflammatory mediators. Myeloid differentiation primary response 88 (MyD88) is an essential protein recruited after lipopolysaccharide (LPS) and interleukin (IL)-1β stimulation, a process that converges in nuclear factor kappa B (NF-κB) activation, as well as a transcription of several genes of both pro- and anti-inflammatory cytokines. The inhibition of MyD88 has shown efficacy by decrease inflammatory response, and has demonstrated potential application as a therapeutic target in chronic diseases. In this study, we investigate the effect of MyD88 dimerisation inhibitor ST2825 on cytokine production from rhIL-1β and LPS-stimulated peripheral blood mononuclear cells (PBMC) from healthy blood donors (HBD). ST2825 significantly downregulates the production of IFN-γ, IL-6, IL-12, IL-2, IL-15, IL-7, VEGF, IL-1Ra, IL-4, IL-5, IL-13 and IL-9 (p < 0.05) in LPS-stimulated PBMC. Moreover, ST2825 had a relatively low impact on IL-1β signalling pathway inhibition, showing that only a few specific cytokines, such as IFN-γ and IL-1Ra, are inhibited in rhIL-1β-stimulated PBMC (p < 0.01). In conclusion, MyD88 dimerisation inhibitor ST2825 showed high efficacy by inhibiting pro- and anti-inflammatory cytokine production in LPS-stimulated PBMC. Moreover, although rhIL-1β induced a sustained cytokine production (p < 0.05), ST2825 did not show a significant effect in the secretion of neither pro- nor anti-inflammatory cytokines in rhIL-1β-stimulated PBMC.
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Mei X, Shi W, Zhao W, Luo H, Zhang Y, Wang Y, Sheng Z, Wang D, Zhu XQ, Huang W. Fasciola gigantica excretory-secretory products (FgESPs) modulate the differentiation and immune functions of buffalo dendritic cells through a mechanism involving DNMT1 and TET1. Parasit Vectors 2020; 13:355. [PMID: 32680546 PMCID: PMC7368760 DOI: 10.1186/s13071-020-04220-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/07/2020] [Indexed: 12/15/2022] Open
Abstract
Background Fasciola gigantica infection threatens the health of both humans and animals in the world. The excretory/secretory products (ESPs) of this fluke has been reported to impair the activation and maturation of immune cells. We have previously shown the influence of F. gigantica ESPs (FgESPs) on the maturation of buffalo dendritic cells (DCs). However, the underlying mechanisms remain unclear. The objective of this study was to investigate the potency of FgESPs in shifting the differentiation and immune functions of buffalo DCs. Methods Buffalo DCs were incubated with FgESPs directly or further co-cultured with lymphocytes in vitro. qRT-PCR was employed to determine the gene expression profile of DCs or the mixed cells, and an ELISA was used to measure cytokine levels in the supernatants. Hoechst and Giemsa staining assays, transmission electron microscopy, caspase-3/7 activity test and histone methylation test were performed to determine DC phenotyping, apoptosis and methylation. To investigate the mechanism involved with DNA methylation, a Co-IP assay and immunofluorescent staining assay were performed to observe if there was any direct interaction between FgESPs and DNMT1/TET1 in buffalo DCs, while RNAi technology was employed to knockdown DNMT1 and TET1 in order to evaluate any different influence of FgESPs on DCs when these genes were absent. Results qRT-PCR and ELISA data together demonstrated the upregulation of DC2 and Th2/Treg markers in DCs alone and DCs with a mixed lymphocyte reaction (MLR), suggesting a bias of DC2 that potentially directed Th2 differentiation in vitro. DC apoptosis was also found and evidenced morphologically and biochemically, which might be a source of tolerogenic DCs that led to Treg differentiation. In addition, FgESPs induced methylation level changes of histones H3K4 and H3K9, which correlate with DNA methylation. Co-IP and immunofluorescent subcellular localization assays showed no direct interaction between the FgESPs and DNMT1/TET1 in buffalo DCs. The productions of IL-6 and IL-12 were found separately altered by the knockdown of DNMT1 and TET1 in DCs after FgESPs treatment. Conclusions FgESPs may induce the DC2 phenotype or the apoptosis of buffalo DCs to induce the downstream Th2/Treg response of T cells, possibly through a DNMT1- or TET1-dependent manner(s).![]()
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Affiliation(s)
- Xuefang Mei
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Wei Shi
- School of Preclinical Medicine, Guangxi Medical University, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Wenping Zhao
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Honglin Luo
- Guangxi Key Laboratory for Aquatic Genetic Breeding and Healthy Aquaculture, Guangxi Institute of Fishery Sciences, Nanning, 530021, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yaoyao Zhang
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Yurui Wang
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Zhaoan Sheng
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China
| | - Dongying Wang
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China.
| | - Xing-Quan Zhu
- State Key Laboratory of Veterinary Etiological Biology, Key Laboratory of Veterinary Parasitology of Gansu Province, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, 730046, Gansu, People's Republic of China. .,Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou University College of Veterinary Medicine, Yangzhou, 225009, Jiangsu, People's Republic of China.
| | - Weiyi Huang
- School of Animal Science and Technology, Guangxi University, Nanning, 530005, Guangxi Zhuang Autonomous Region, People's Republic of China.
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Chung E, Kim YJ, Lee MR, Cho SH, Ju JW. A 21.6 kDa tegumental protein of Clonorchis sinensis induces a Th1/Th2 mixed immune response in mice. IMMUNITY INFLAMMATION AND DISEASE 2018; 6:435-447. [PMID: 30298703 PMCID: PMC6247233 DOI: 10.1002/iid3.235] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 07/11/2018] [Accepted: 07/13/2018] [Indexed: 11/24/2022]
Abstract
Introduction Clonorchis sinensis is a major parasite affecting the Korea population. Despite the high infection rate and pathogenicity, very few studies have been conducted to investigate the immune responses against the proteins of C. sinensis. Methods In this study, in vitro immune response induced by a recombinant 21.6 kDa tegumental protein derived from C. sinensis (rCsTegu21.6) was confirmed in murine dendritic cells and T cells. For the in vivo analysis, each mouse was immunized three times. Total serum IgG and T cell cytokine production were determined by ELISA, while T cell proliferation was detected by a WST (Water‐Soluble Tetrazolium salt)‐1 assay. Results In vitro tests indicated that rCsTegu21.6 treatment increased the expression of surface molecules, such as CD40 (77%), CD80 (52%) and CD86 (46%), on murine dendritic cells and the secretion of cytokines (TNF‐α, IL‐6, IL‐1β, IL‐10, and IL‐12p70). Moreover, co‐culturing dendritic cells activated by rCsTegu21.6 with allogenic T cells induced T cell proliferation over time. rCsTegu21.6 also stimulated specific antibody production and cytokine secretion [IL‐2, IL‐4, and interferon (IFN)‐γ)] from T cells following immunization in vivo. Notably, rCsTegu21.6 predominantly induced IgG1 production and secretion of the Th2 cytokine IL‐4, regardless of the type of adjuvant used. Conclusion These results serve as a foundation for the development of tegumental protein‐based vaccines against C. sinensis.
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Affiliation(s)
- EunJoo Chung
- Division of Vectors and Parasitic Diseases, Center for Laboratory Control of Infectious Diseases, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Yu Jung Kim
- Division of Vectors and Parasitic Diseases, Center for Laboratory Control of Infectious Diseases, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Myoung-Ro Lee
- Division of Vectors and Parasitic Diseases, Center for Laboratory Control of Infectious Diseases, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Shin-Hyeong Cho
- Division of Vectors and Parasitic Diseases, Center for Laboratory Control of Infectious Diseases, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
| | - Jung-Won Ju
- Division of Vectors and Parasitic Diseases, Center for Laboratory Control of Infectious Diseases, Korea Centers for Disease Control & Prevention, Osong, 28159, Republic of Korea
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