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Zhang Y, Si L, Gao J, Shu X, Qiu C, Zhang Y, Zu S, Hu H. Serial passage of PDCoV in cell culture reduces its pathogenicity and its damage of gut microbiota homeostasis in piglets. mSystems 2024; 9:e0134623. [PMID: 38349151 PMCID: PMC10949489 DOI: 10.1128/msystems.01346-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 01/10/2024] [Indexed: 03/20/2024] Open
Abstract
Porcine deltacoronavirus (PDCoV) is an enteropathogenic coronavirus that mainly causes diarrhea in suckling piglets, and also has the potential for cross-species transmission. However, there are still no commercial vaccines available to prevent and control PDCoV infection. In this study, PDCoV strain HNZK-02 was serially propagated in vitro for up to 150 passages and the amino acid changes have mainly occurred in the S protein during serial passage which caused structure change. PDCoV HNZK-02-passage 5 (P5)-infected piglets exhibited acute and severe watery diarrhea, an obvious intestinal damage, while the piglets infected with PDCoV HNZK-02-P150 showed no obvious clinical signs, weak intestinal lesions, and lower viral loads in rectal swabs and various tissues. Compared with the PDCoV HNZK-02-P5 infection, HNZK-02-P150 infection resulted in a decrease in intestinal mucosal permeability and pro-inflammatory cytokines. Moreover, PDCoV HNZK-02-P5 infection had significantly reduced bacterial diversity and increased relative abundance of opportunistic pathogens, while PDCoV HNZK-02-P150 infection did not significantly affect the bacterial diversity, and the relative abundance of probiotics increased. Furthermore, the alterations of gut microbiota were closely related to the change of pro-inflammatory factor. Metagenomics prediction analysis demonstrated that HNZK-02-P150 modulated the tyrosine metabolism, Nucleotide-binding and oligomerization domain (NOD)-like receptor signaling pathway, and lipopolysaccharide biosynthesis, which coincided with lower inflammatory response and intestinal permeability in the piglets infected with HNZK-02-P150. In conclusion, the PDCoV HNZK-02 was successfully attenuated by serial passage in vitro, and the changes of S gene, metabolic function, and gut microbiota may contribute to the attenuation. The PDCoV HNZK-02-P150 may have the potential for developing live-attenuated vaccine.IMPORTANCEPorcine deltacoronavirus (PDCoV) is an enteropathogen causing severe diarrhea, dehydration, and death in nursing piglets, devastating great economic losses for the global swine industry, and has cross-species transmission and zoonotic potential. There are currently no approved treatments or vaccines available for PDCoV. In addition, gut microbiota has an important relationship with the development of many diseases. Here, the PDCoV virulent HNZK-02 strain was successfully attenuated by serial passage on cell cultures, and the pathogenesis and effects on the gut microbiota composition and metabolic function of the PDCoV HNZK-02-P5 and P150 strains were investigated in piglets. We also found the genetic changes in the S protein during passage in vitro and the gut microbiota may contribute to the pathogenesis of PDCoV, while their interaction molecular mechanism would need to be explored further.
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Affiliation(s)
- Yunfei Zhang
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
| | - Lulu Si
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
| | - Junlong Gao
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
| | - Xiangli Shu
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
| | - Congrui Qiu
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
| | - Yue Zhang
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
- Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou, Henan, China
| | - Shaopo Zu
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
- Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou, Henan, China
| | - Hui Hu
- The College of Veterinary Medicine, Henan Agricultural University, Zhengzhou, Henan, China
- Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou, Henan, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou, Henan, China
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Shi C, Liang W, Guo M, Yuan J, Zu S, Hu H. Chlorogenic acid inhibits porcine deltacoronavirus release by targeting apoptosis. Int Immunopharmacol 2024; 127:111359. [PMID: 38101217 DOI: 10.1016/j.intimp.2023.111359] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 11/05/2023] [Accepted: 12/07/2023] [Indexed: 12/17/2023]
Abstract
Porcine deltacoronavirus (PDCoV), belonging to family Coronaviridae, genus Deltacoronavirus, can cause acute diarrhea in piglets, and also possesses cross-species transmission potential, leading to severe economic losses and threatening public health. However, no approved drug against PDCoV infection is available. Here, we investigated the antiviral effect of chlorogenic acid (CGA), the main active component of Lonicerae Japonicae Flos, against PDCoV infection. The results showed that CGA inhibited the replication of PDCoV significantly both in LLC-PK1 and ST cells, with a selectivity index greater than 80. CGA decreased the synthesis of PDCoV viral RNA and protein, and viral titers in a dose-dependent manner. The results of the time-of-addition assay indicated that CGA mainly affected the early stage of virus replication and viral release. Moreover, CGA significantly reduced apoptosis caused by PDCoV infection, and the application of apoptosis agonist and inhibitor revealed that apoptosis could promote progeny virus release. Further study demonstrated that CGA can inhibit virus release by directly targeting apoptosis caused by PDCoV infection. In conclusion, CGA is an effective agent against PDCoV, which provides a foundation for drug development for the treatment of PDCoV and other coronavirus infections.
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Affiliation(s)
- Chenxi Shi
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Weiwei Liang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Meng Guo
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Jin Yuan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450046, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, China
| | - Shaopo Zu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450046, China.
| | - Hui Hu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450046, China; Longhu Laboratory of Advanced Immunology, Zhengzhou 450046, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, China.
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Zhang Y, Shi C, Yuan J, Zhang Y, Jin X, Zu S, Zhang H, Hu H. Rapid Construction of Recombinant PDCoV Expressing an Enhanced Green Fluorescent Protein for the Antiviral Screening Assay Based on Transformation-Associated Recombination Cloning in Yeast. J Agric Food Chem 2024; 72:1124-1135. [PMID: 38181302 DOI: 10.1021/acs.jafc.3c08327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2024]
Abstract
Porcine deltacoronavirus (PDCoV) is an emerging enteropathogenic coronavirus that mainly causes diarrhea and death in suckling piglets and also has the potential for cross-species transmission, threatening public health. However, there is still no effective vaccine or drug to prevent PDCoV infection. In order to accelerate the development of antiviral drugs, we established a high-throughput screening platform using a novel genome editing technology called transformation-associated recombination cloning in yeast. The recombinant PDCoV and PDCoV reporter virus expressing enhanced green fluorescent protein were both rapidly rescued with stable genealogical characteristics during passage. Further study demonstrated that the reporter virus can be used for high-throughput screening of antiviral drugs with a Z-factor of 0.821-0.826. Then, a medicine food homology compound library was applied, and we found that three compounds were potential antiviral reagents. In summary, we have established a fast and efficient reverse genetic system of PDCoV, providing a powerful platform for the research of antiviral drugs.
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Affiliation(s)
- Yucan Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Chenxi Shi
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Jin Yuan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Yue Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Xiaohui Jin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
| | - Shaopo Zu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, China
| | - Honglei Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450046, China
| | - Hui Hu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China
- Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450046, China
- Longhu Laboratory of Advanced Immunology, Zhengzhou 450046, China
- Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, China
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Li Q, Zhang M, Sun J, Li Y, Zu S, Xiang Y, Jin X. Porcine β-defensin-2 alleviates aflatoxin B1 induced intestinal mucosal damage via ROS-Erk 1/2 signaling pathway. Sci Total Environ 2023; 905:167201. [PMID: 37734607 DOI: 10.1016/j.scitotenv.2023.167201] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Revised: 09/14/2023] [Accepted: 09/17/2023] [Indexed: 09/23/2023]
Abstract
Aflatoxin B1 (AFB1) is a highly toxic fungal toxin that causes severe damage to animal intestines. Porcine beta-defensin-2 (pBD-2) is a well-studied antimicrobial peptide in pigs that can protect animal intestines and improve productivity. This study aimed to investigate the molecular mechanisms of pBD-2 in alleviating AFB1-induced oxidative stress and intestinal mucosal damage using porcine intestinal epithelial cells (IPEC-J2 cells) and Kunming (KM) mice. The maximum destructive concentration of AFB1 for IPEC-J2 cells and the optimal therapeutic concentration of pBD-2 were determined by CCK-8 and RT-qPCR. We then investigated the oxidative stress and intestinal damage induced by AFB1 and the alleviating effect of pBD-2 by detecting changes of reactive oxygen species (ROS), inflammatory cytokines, tight junction proteins (TJPs) and mucin. Finally, the molecular mechanism of pBD-2 mitigates AFB1-induced oxidative stress and intestinal mucosal damage were explored by adding ROS and Erk1/2 pathway inhibitors to comparative analysis. In vivo, the therapeutic effect of pBD-2 on AFB1-induced intestinal damage was analyzed from aspects such as average daily gain (ADG), pathological damage, inflammation, and mucosal barrier in KM mice. The study found that low doses of pBD-2 promoted cell proliferation and prevented AFB1-induced cell death, and pBD-2 significantly restored the feed conversion rate and ADG of KM mice reduced by long-term exposed AFB1. Increasing the intracellular ROS and the expression and phosphorylation of Erk1/2, AFB1 promoted inflammation by altering inflammatory cytokines TNF-α, IL-1β, IL-6, and IL-8, and disrupted the mucosal barrier by interfering with Claudin-3, Occludin, and MUC2, while pBD-2 significantly reduced ROS and decreased the expression and phosphorylation of Erk1/2 to restored their expression to alleviate AFB1-induced oxidative stress and intestinal mucosal damage in IPEC-J2 cells and the small intestine of mice.
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Affiliation(s)
- Qinghao Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, Henan, China
| | - Man Zhang
- College of Veterinary Medicine, Henan University of Animal Husbandry and Economy, Zhengzhou 450046, Henan, China
| | - Juan Sun
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, Henan, China
| | - Yilei Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, Henan, China
| | - Shaopo Zu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, Henan, China
| | - Yuqiang Xiang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, Henan, China
| | - Xin Jin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, Henan, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450046, Henan, China.
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Zeng Q, Liu J, Li Z, Zhang Y, Zu S, Ding X, Zhang H. Japanese encephalitis virus NS4B inhibits interferon beta production by targeting TLR3 and TRIF. Vet Microbiol 2023; 284:109849. [PMID: 37597377 DOI: 10.1016/j.vetmic.2023.109849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/10/2023] [Accepted: 08/11/2023] [Indexed: 08/21/2023]
Abstract
Japanese encephalitis virus (JEV) is a flavivirus transmitted by mosquitoes, causing epidemics of encephalitis in humans and reproductive disorders in pigs. This virus is predominantly distributed in Asian countries and causes tens of thousands of infections in humans annually. Interferon (IFN) is an essential component of host defense against viral infection. Multiple studies have indicated that multifunctional nonstructural proteins of flaviviruses suppress the host IFN response via various strategies to facilitate viral replication. The flaviviruses encoded nonstructural protein 4B (NS4B) is a multifunctional hydrophobic nonstructural protein widely involved in viral replication, pathogenesis and host immune evasion. In this study, we demonstrated that NS4B of JEV suppressed the induction of IFN-β production, mainly through targeting the TLR3 and TRIF (a TIR domain-containing linker that induces IFN-β) proteins in the TLR3 pathway. In a dual-luciferase reporter assay, JEV NS4B significantly inhibited the activation of IFN-β promoter induced by TLR3 and simultaneously treated with poly (I:C). Moreover, NS4B also inhibited the activation of IFN-β promoter triggered by interferon regulatory factor 3 (IRF3)/5D or its upstream molecules in TLR3 signaling pathway. Furthermore, NS4B inhibited the phosphorylation of IRF3 under the stimulation of TLR3 and TRIF molecules. Mechanistically, JEV NS4B interacts with TLR3 and TRIF and confirmed by co-localization and co-immunoprecipitation assay, thereby inhibiting the activation of downstream sensors in the TLR3-mediated pathway. Overall, our results provide a novel mechanism by which JEV NS4B interferes with the host's antiviral response through targeting TLR3 receptor signaling pathway.
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Affiliation(s)
- Quan Zeng
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Jiaqi Liu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Zhaoyang Li
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Yucan Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China
| | - Shaopo Zu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China; Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450002, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450002, China
| | - Xueyan Ding
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China; Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450002, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450002, China
| | - Honglei Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450002, Henan, China; Key Laboratory for Animal-derived Food Safety of Henan Province, Zhengzhou 450002, China; Ministry of Education Key Laboratory for Animal Pathogens and Biosafety, Zhengzhou 450002, China.
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Hao C, Ren H, Wu X, Shu X, Li Z, Hu Y, Zeng Q, Zhang Y, Zu S, Yuan J, Zhang H, Hu H. Preparation of monoclonal antibody and identification of two novel B cell epitopes to VP1 protein of porcine sapelovirus. Vet Microbiol 2022; 275:109593. [DOI: 10.1016/j.vetmic.2022.109593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/17/2022] [Accepted: 10/22/2022] [Indexed: 11/27/2022]
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Yuan Y, Zu S, Zhang Y, Zhao F, Jin X, Hu H. Porcine Deltacoronavirus Utilizes Sialic Acid as an Attachment Receptor and Trypsin Can Influence the Binding Activity. Viruses 2021; 13:v13122442. [PMID: 34960711 PMCID: PMC8705999 DOI: 10.3390/v13122442] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 11/24/2021] [Accepted: 11/30/2021] [Indexed: 02/06/2023] Open
Abstract
Porcine deltacoronavirus (PDCoV) is a novel coronavirus that causes diarrhea in nursing piglets. Studies showed that PDCoV uses porcine aminopeptidase N (pAPN) as an entry receptor, but the infection of pAPN-knockout cells or pigs with PDCoV revealed that pAPN might be not a critical functional receptor, implying there exists an unidentified receptor involved in PDCoV infection. Herein, we report that sialic acid (SA) can act as an attachment receptor for PDCoV invasion and facilitate its infection. We first demonstrated that the carbohydrates destroyed on the cell membrane using NaIO4 can alleviate the susceptibility of cells to PDCoV. Further study showed that the removal of SA, a typical cell-surface carbohydrate, could influence the PDCoV infectivity to the cells significantly, suggesting that SA was involved in the infection. The results of plaque assay and Western blotting revealed that SA promoted PDCoV infection by increasing the number of viruses binding to SA on the cell surface during the adsorption phase, which was also confirmed by atomic force microscopy at the microscopic level. In in vivo experiments, we found that the distribution levels of PDCoV and SA were closely relevant in the swine intestine, which contains huge amount of trypsin. We further confirmed that SA-binding capacity to PDCoV is related to the pre-treatment of PDCoV with trypsin. In conclusion, SA is a novel attachment receptor for PDCoV infection to enhance its attachment to cells, which is dependent on the pre-treatment of trypsin on PDCoV. This study paves the way for dissecting the mechanisms of PDCoV–host interactions and provides new strategies to control PDCoV infection.
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Affiliation(s)
- Yixin Yuan
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (Y.Y.); (S.Z.); (Y.Z.); (F.Z.); (X.J.)
| | - Shaopo Zu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (Y.Y.); (S.Z.); (Y.Z.); (F.Z.); (X.J.)
| | - Yunfei Zhang
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (Y.Y.); (S.Z.); (Y.Z.); (F.Z.); (X.J.)
| | - Fujie Zhao
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (Y.Y.); (S.Z.); (Y.Z.); (F.Z.); (X.J.)
| | - Xiaohui Jin
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (Y.Y.); (S.Z.); (Y.Z.); (F.Z.); (X.J.)
| | - Hui Hu
- College of Veterinary Medicine, Henan Agricultural University, Zhengzhou 450046, China; (Y.Y.); (S.Z.); (Y.Z.); (F.Z.); (X.J.)
- Key Laboratory for Animal-Derived Food Safety of Henan Province, Zhengzhou 450046, China
- Correspondence:
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Yao Q, Zhang M, Zu S, Yang H, Xie W, Chen J, Chen Z, Ge Y, Zeng W, Zhao Z. Integrated mRNA and microRNA Transcriptome Sequencing Characterizes Sequence Variants and mRNA-microRNA Regulatory Networks in Grass Carp Fibroblasts Infected with Virulent and Attenuated GCRV. Mar Biotechnol (NY) 2021; 23:342-355. [PMID: 33748916 DOI: 10.1007/s10126-021-10029-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 03/04/2021] [Indexed: 06/12/2023]
Abstract
Grass carp hemorrhagic disease is a fatal disease caused by the grass carp reovirus (GCRV). The aberrant regulation of transcripts has been implicated in many types of diseases. In the present study, we characterized mRNA and miRNA transcriptomes of different virulent GCRVs using RNA sequencing (RNA-Seq). One hundred eighteen miRNAs were identified as being differentially expressed between different virulent viruses in grass carp fibroblasts. Eight miRNAs were selected to verify the RNA-Seq results using RT-PCR and mRNA methods. In total, 996 differentially expressed mRNA genes were identified in grass carp fibroblasts, while 901 miRNA-mRNA target pairs were observed to be inversely regulated in grass carp fibroblasts. Integrated mRNA/miRNA expression profiling analysis results showed that the most influenced processes were the immune response and cell death. Three miRNAs were shown to exhibit the same expression patterns when two different methods were used and had important functions during viral infection. These results provide insights into the miRNA-mediated regulation of mRNA and valuable resources on transcript variation and regulation during GCRV infection, which are potentially useful for mechanistic and drug studies.
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Affiliation(s)
- Qiucheng Yao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China
| | - Mengdi Zhang
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China
| | - Shaopo Zu
- Haikou Customs District P.R. China, Haikou, Hainan, China
| | - Hong Yang
- Nanchang Animal Disease Prevention and Control Center, Jiangxi, Nanchang, People's Republic of China
| | - Weitian Xie
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China
| | - Jinjun Chen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China
| | - Zhibao Chen
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China
| | - Ye Ge
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China.
| | - Weiwei Zeng
- School of Life Science and Engineering, Guangdong Provincial Key Laboratory of Animal Molecular Design and Precise Breeding, Foshan University, Foshan, 528231, China.
- Key Laboratory of Fishery Drug Development, Ministry of Agriculture, Key Laboratory of Aquatic Animal Immune Technology, Guangdong Province, Pearl River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou, 510380, People's Republic of China.
| | - Zhihui Zhao
- College of Coastal Agricultural Sciences, Guangdong Ocean University, Zhanjiang, Guangdong, People's Republic of China.
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Zu S, Xue Q, He Z, Shi C, Wu W, Zhang J, Li W, Huang J, Jiao P, Liao M. Duck PIAS2 negatively regulates RIG-I mediated IFN-β production by interacting with IRF7. Dev Comp Immunol 2020; 108:103664. [PMID: 32151676 DOI: 10.1016/j.dci.2020.103664] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Revised: 02/24/2020] [Accepted: 02/24/2020] [Indexed: 06/10/2023]
Abstract
The protein inhibitor of activated STAT (PIAS) proteins are important signal transduction modulator family and regulate the innate immune signaling pathway induced by certain transcription factors, including NF-κB, IRF3, and JAK/STAT. The PIAS protein mechanism that regulates innate immune response in mammals has been well described in the literature; however, whether the PIAS gene exists in ducks as well as the role of PIAS in duck IFN-β expression is still unclear. Here, we cloned duck PIAS (duPIAS), finding PIAS2 could repress IFN-β production. DuPIAS2 contains SAP-PINIT-RLD-S/T characteristic domains, and its overexpression could inhibit virus-induced IFN-β promoter activation. Moreover, duPIAS2 interacts with duck interferon regulatory factor 7 (IRF7) and inhibits IFN-β promoter activation induced by duck IRF7. Additionally, its inhibitory function does not rely on its SUMO E3 ligase activity but rather its C-terminal portion. The above results demonstrate that duPIAS2 is a repressor of IFN-β production induced by duck IRF7.
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Affiliation(s)
- Shaopo Zu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Qian Xue
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Zhuoliang He
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Chenxi Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People's Republic of China
| | - Wenbo Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Junsheng Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Weiqiang Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Jianni Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China
| | - Peirong Jiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China.
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, People's Republic of China.
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Zu S, Xue Q, He Z, Shi C, Zhang J, Wu W, Li W, Liu Z, Huang J, Jiao P, Liao M. Duck PIAS2 Promotes H5N1 Avian Influenza Virus Replication Through Its SUMO E3 Ligase Activity. Front Microbiol 2020; 11:1246. [PMID: 32595623 PMCID: PMC7300270 DOI: 10.3389/fmicb.2020.01246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/15/2020] [Indexed: 12/19/2022] Open
Abstract
The protein inhibitor of the activated STAT2 (PIAS2) has been implicated in many cellular processes and can also regulate viral replication in mammals. However, the role of PIAS2 in the highly pathogenic avian influenza virus (HPAIV) H5N1 replication in ducks is still unclear. Through liquid chromatography-tandem mass spectrometry (LC-MS/MS) assay, we identified that duck PIAS2 (duPIAS2) was one protein that interacted with the nucleoprotein (NP) from the H5N1 HPAIV strain of DK212. Through confocal microscopy images and Co-IP assay, we confirmed NP could interact with duPIAS2. Overexpression of duPIAS2 in primary duck embryo fibroblast (DEF) cells was shown to promote DK212 replication, and knockdown of duPIAS2 could repress DK212 replication. We further found duPIAS2 could promote NP SUMOylation through duck SUMO1 (duSUMO1), and the potential SUMOylation sites of NP were at lysines 7, 48, and 87. Furthermore, duPIAS2 promoted the replication of DK212, here relying on the activity of its SUMO E3 ligase. Duck SENP1 (duSENP1), a deSUMOylation enzyme, could repress NP SUMOylation and also inhibit DK212 replication. Together, we identified duPIAS2 could interact with NP and that duPIAS2 promoted H5N1 HPAIV replication, which might be related to NP SUMOylation.
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Affiliation(s)
- Shaopo Zu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Qian Xue
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhuoliang He
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Chenxi Shi
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Junsheng Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Wenbo Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Weiqiang Li
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhiting Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jianni Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Peirong Jiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
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Wu S, Zhang J, Xue Q, Liu J, Huang B, He Z, Huang J, Zu S, Chen Z, Zhao B, Liao M, Jiao P. Duck TRIM32 Functions in IFN-β Signaling Against the Infection of H5N6 Highly Pathogenic Avian Influenza Virus. Front Immunol 2020; 11:377. [PMID: 32184788 PMCID: PMC7058987 DOI: 10.3389/fimmu.2020.00377] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Accepted: 02/17/2020] [Indexed: 12/13/2022] Open
Abstract
In mammals, tripartite motif 32 (TRIM32) is essential for regulating host innate immune responses to viral infections. However, the antiviral effect of TRIM32 in birds has not been reported. Here, we cloned the full-length duck TRIM32 (duTRIM32) cDNA from total spleen RNA of Peking duck. DuTRIM32 consists of 682 amino acids and has 95.5% similarity in amino acid sequences with chicken TRIM32 and 84.9% similarity with human TRIM32, respectively. DuTRIM32 mRNA was found to be ubiquitously expressed in all tested tissues from healthy ducks. Overexpression of duTRIM32 significantly activated the IFN-β promoter and upregulated the mRNA levels of IFN-β, IRF7, and Mx, which indicates that duTRIM32 is involved in the type I IFN pathway. Furthermore, duTRIM32 was found to directly interact with duck STING (duSTING) and to contribute to the expression of IFN-β mediated by duSTING. The mRNA level of duTRIM32 was significantly upregulated in the lungs and spleens of H5N6 highly pathogenic avian influenza virus (HPAIV) infected ducks 3 days post-infection (DPI). Furthermore, overexpression of duTRIM32 could inhibit the replication of H5N6 HPAIV in duck embryo fibroblasts (DEFs). Therefore, these results indicate that duTRIM32 is involved in the type I IFN pathway and exhibit an antiviral effect against H5N6 HPAIV infection.
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Affiliation(s)
- Siyu Wu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Junsheng Zhang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Qian Xue
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jing Liu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Bingzhong Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zhuoliang He
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Jianni Huang
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Shaopo Zu
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Zuxian Chen
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Bingbing Zhao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China
| | - Ming Liao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Peirong Jiao
- College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.,Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
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12
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Tian J, Liu D, Liu Y, Wu H, Jiang Y, Zu S, Liu C, Sun X, Liu J, Qu L. Molecular characterization of a feline calicivirus isolated from tiger and its pathogenesis in cats. Vet Microbiol 2016; 192:110-117. [PMID: 27527772 DOI: 10.1016/j.vetmic.2016.07.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 06/27/2016] [Accepted: 07/06/2016] [Indexed: 10/21/2022]
Abstract
Feline calicivirus (FCV) is a virus that causes respiratory disease in cats. In this study, the FCV TIG-1 was isolated from Siberian tiger feces collected in 2014 in Heilongjiang Province, China. Phylogenetic analysis among TIG-1 and other FCVs showed that TIG-1 does not share the same lineage with other FCV isolates from Heilongjiang or other regions in China but is located in the same cluster with the FCV strain Urbana, which was isolated from the United States. The growth kinetics in vitro and the pathogenicity in cats between TIG-1 and the domestic cat-origin FCV strain F9 (vaccine strain) and strain 2280 were compared. We found that the growth kinetics of strains TIG-1 and 2280 were faster than that of strain F9 from 12h to 36h post-infection, indicating that strains TIG-1 and 2280 produce infectious virions and reach peak yields earlier. Challenge experiments in cats showed that TIG-1 grew faster than the other two strains in the lungs of cats and that TIG-1 is a virulent FCV with 100% morbidity and lethality. In addition, the histopathological results showed that the virulent TIG-1 strain directly led to severe lung tissue damage and indirectly led to intestinal damage. The results presented here show that a tiger-origin FCV exhibits high virulence in cats.
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Affiliation(s)
- Jin Tian
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China.
| | - Dafei Liu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Yongxiang Liu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Hongxia Wu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Yanmei Jiang
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China; College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, PR China
| | - Shaopo Zu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China; College of Veterinary Medicine, Northeast Agricultural University, Harbin, PR China
| | - Chunguo Liu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Xue Sun
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China; College of Veterinary Medicine, Northeast Agricultural University, Harbin, PR China
| | - Jiasen Liu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China
| | - Liandong Qu
- Division of Zoonosis of Natural Foci, State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Harbin, PR China.
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13
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Wu H, Liu Y, Zu S, Sun X, Liu C, Liu D, Zhang X, Tian J, Qu L. In vitro antiviral effect of germacrone on feline calicivirus. Arch Virol 2016; 161:1559-67. [PMID: 26997613 PMCID: PMC7087046 DOI: 10.1007/s00705-016-2825-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2015] [Accepted: 03/10/2016] [Indexed: 02/02/2023]
Abstract
Feline calicivirus (FCV) often causes respiratory tract and oral disease in cats and is a highly contagious virus. Widespread vaccination does not prevent the spread of FCV. Furthermore, the low fidelity of the RNA-dependent RNA polymerase of FCV leads to the emergence of new variants, some of which show increased virulence. Currently, few effective anti-FCV drugs are available. Here, we found that germacrone, one of the main constituents of volatile oil from rhizoma curcuma, was able to effectively reduce the growth of FCV strain F9 in vitro. This compound exhibited a strong anti-FCV effect mainly in the early phase of the viral life cycle. The antiviral effect depended on the concentration of the drug. In addition, germacrone treatment had a significant inhibitory effect against two other reference strains, 2280 and Bolin, and resulted in a significant reduction in the replication of strains WZ-1 and HRB-SS, which were recently isolated in China. This is the first report of antiviral effects of germacrone against a calicivirus, and extensive in vivo research is needed to evaluate this drug as an antiviral therapeutic agent for FCV.
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Affiliation(s)
- Hongxia Wu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
| | - Yongxiang Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
| | - Shaopo Zu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People’s Republic of China
| | - Xue Sun
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, People’s Republic of China
| | - Chunguo Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
| | - Dafei Liu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
| | - Xiaozhan Zhang
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
| | - Jin Tian
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
| | - Liandong Qu
- State Key Laboratory of Veterinary Biotechnology, Harbin Veterinary Research Institute, Chinese Academy of Agricultural Sciences, 427 Maduan Street, Nangang District, Harbin, 150001 People’s Republic of China
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14
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Hu YD, Xiang YT, Fang JX, Zu S, Sha S, Shi H, Ungvari GS, Correll CU, Chiu HFK, Xue Y, Tian TF, Wu AS, Ma X, Wang G. Single i.v. ketamine augmentation of newly initiated escitalopram for major depression: results from a randomized, placebo-controlled 4-week study. Psychol Med 2016; 46:623-635. [PMID: 26478208 DOI: 10.1017/s0033291715002159] [Citation(s) in RCA: 90] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
BACKGROUND While oral antidepressants reach efficacy after weeks, single-dose intravenous (i.v.) ketamine has rapid, yet time-limited antidepressant effects. We aimed to determine the efficacy and safety of single-dose i.v. ketamine augmentation of escitalopram in major depressive disorder (MDD). METHOD Thirty outpatients with severe MDD (17-item Hamilton Rating Scale for Depression total score ⩾ 24) were randomized to 4 weeks double-blind treatment with escitalopram 10 mg/day+single-dose i.v. ketamine (0.5 mg/kg over 40 min) or escitalopram 10 mg/day + placebo (0.9% i.v. saline). Depressive symptoms were measured using the Montgomery-Asberg Depression Rating Scale (MADRS) and the Quick Inventory of Depressive Symptomatology - Self-Report (QIDS-SR). Suicidal ideation was evaluated with the QIDS-SR item 12. Adverse psychopathological effects were measured with the Brief Psychiatric Rating Scale (BPRS)-positive symptoms, Young Mania Rating Scale (YMRS) and Clinician Administered Dissociative States Scale (CADSS). Patients were assessed at baseline, 1, 2, 4, 24 and 72 h and 7, 14, 21 and 28 days. Time to response (⩾ 50% MADRS score reduction) was the primary outcome. RESULTS By 4 weeks, more escitalopram + ketamine-treated than escitalopram + placebo-treated patients responded (92.3% v. 57.1%, p = 0.04) and remitted (76.9% v. 14.3%, p = 0.001), with significantly shorter time to response [hazard ratio (HR) 0.04, 95% confidence interval (CI) 0.01-0.22, p < 0.001] and remission (HR 0.11, 95% CI 0.02-0.63, p = 0.01). Compared to escitalopram + placebo, escitalopram + ketamine was associated with significantly lower MADRS scores from 2 h to 2 weeks [(peak = 3 days-2 weeks; effect size (ES) = 1.08-1.18)], QIDS-SR scores from 2 h to 2 weeks (maximum ES = 1.27), and QIDS-SR suicidality from 2 to 72 h (maximum ES = 2.24). Only YMRS scores increased significantly with ketamine augmentation (1 and 2 h), without significant BPRS or CADSS elevation. CONCLUSIONS Single-dose i.v. ketamine augmentation of escitalopram was safe and effective in severe MDD, holding promise for speeding up early oral antidepressant efficacy.
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Affiliation(s)
- Y-D Hu
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
| | - Y-T Xiang
- Unit of Psychiatry,Faculty of Health Sciences,University of Macau,Macao SAR,China
| | - J-X Fang
- Unit of Psychological Medicine,Beijing Chao-Yang Hospital,Capital Medical University,Beijing,China
| | - S Zu
- Unit of Psychological Medicine,Beijing Chao-Yang Hospital,Capital Medical University,Beijing,China
| | - S Sha
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
| | - H Shi
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
| | - G S Ungvari
- The University of Notre Dame Australia/Marian Centre,Perth,Australia
| | - C U Correll
- Division of Psychiatry Research,The Zucker Hillside Hospital,North Shore-Long Island Jewish Health System,Glen Oaks,NY,USA
| | - H F K Chiu
- Department of Psychiatry,Chinese University of Hong Kong,Hong Kong SAR,China
| | - Y Xue
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
| | - T-F Tian
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
| | - A-S Wu
- Unit of Psychological Medicine,Beijing Chao-Yang Hospital,Capital Medical University,Beijing,China
| | - X Ma
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
| | - G Wang
- China & Beijing Key Laboratory of Mental Disorders,The National Clinical Research Center for Mental Disorders,Beijing Anding Hospital,Capital Medical University,Beijing,China
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15
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Zhang MJ, Li WZ, Zu S, Huo W, Zhu XF, Wang ZY. Catalytic Hydrogenation for Bio-Oil Upgrading by a Supported NiMoB Amorphous Alloy. Chem Eng Technol 2013. [DOI: 10.1002/ceat.201300142] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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16
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Masood R, Hochstim C, Cervenka B, Zu S, Baniwal SK, Patel V, Kobielak A, Sinha UK. A novel orthotopic mouse model of head and neck cancer and lymph node metastasis. Oncogenesis 2013; 2:e68. [PMID: 24018643 PMCID: PMC3816223 DOI: 10.1038/oncsis.2013.33] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Accepted: 07/29/2013] [Indexed: 12/13/2022] Open
Abstract
Prognosis of head and neck squamous cell carcinoma (HNSCC) is largely determined by the extent of lymph node (LN) metastasis at diagnosis, and this appears to be controlled by cancer cell genetics. To examine the role of these genes in LN metastasis, we created a human-in-mouse orthotopic model of HNSCC and performed comparative microarray analysis of gene expression between populations of HNSCC cell lines derived before and after serial transplantation and in vivo metastasis in mice. Microarray analysis comparing the USC-HN3-GFP, USC-HN3-GFP-G1 and USC-HN3-GFP-G2 cell lines identified overexpression of genes implicated in epithelial-to- mesenchymal transition and the formation of cancer stem cells, including CAV-1, TLR-4 (Toll-like receptor 4), MMP-7 (matrix metalloproteinase 7), ALDH1A3, OCT-4 and TRIM-29. Ingenuity Pathway Analysis confirmed upregulation of respective gene signaling pathways in the USC-HN1-GFP-G2 cell line. Patient HNSCC samples from advanced stages overexpressed ALDH1A3, CAV-1 and MMP-7. Our results show that CAV-1, TLR-4, MMP-7, ALDH1A3, OCT-4 and TRIM-29 have increased expression in HNSCC cells selected for an enhanced metastatic phenotype and suggest that these genes may have an important role in the metastatic potential of HNSCC cells. Inhibition of these genes may therefore have prognostic and therapeutic utility in HNSCC.
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Affiliation(s)
- R Masood
- Department of Otolaryngology-Head and Neck Surgery, Keck School of Medicine, University of Southern California, Los Angeles, CA, USA
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Zu S, Gao C, Qiang L. [K562 cells differentiation induced by RNA from rabbit reticulocytes]. Zhonghua Yi Xue Za Zhi 1996; 76:191-3. [PMID: 8758426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To study the effect of RNA from the reticulocytes of rabbit on cell differentiation of human leukemia cell line K562 cells. METHOD RNA from rabbit reticulocytes and human leukemia K562 cells were cultured for 4 days to detect cellular changes. RESULTS When K562 cells grew in a medium containing 100 micrograms/ml RNA, the cellular growth and division were gradually suppressed and the cells changed toward a differentiated phenotype. Subsequently, K562 cells produced hemoglobins and further differentiated terminally. CONCLUSION RNA of mammalian erythrocyte played a role in declining cellular division and growth of K562 cells, reversing malignant phenotype, and promoting differentiation.
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Affiliation(s)
- S Zu
- Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Beijing
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18
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Adams RB, Guerrant RL, Zu S, Fang G, Roche JK. Cryptosporidium parvum infection of intestinal epithelium: morphologic and functional studies in an in vitro model. J Infect Dis 1994; 169:170-7. [PMID: 8277178 DOI: 10.1093/infdis/169.1.170] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
A monolayer of mature polarized colonic epithelial cells (T84) able to generate and maintain a barrier to macromolecular flow was used to study pathophysiologic events that occur on microvillus cell exposure to Cryptosporidium parvum. By 24-48 h, several life cycle forms were seen in parasitophorous vacuoles near the apical cell surface, along with a time- and oocyst dose-dependent reduction in epithelial barrier function. As few as 10(5) organisms constituted a successful infecting dose, and heat inactivation of organisms markedly reduced the monolayer barrier alteration. Horseradish peroxidase flux studies demonstrated a substantial increase in macromolecular permeability of the monolayer, and lactate dehydrogenase determinations indicated modest injury of the T84 epithelial cells on exposure to oocysts. Thus, disruption of the epithelial cell barrier, not just opening of transcellular channels for ion flow as reported previously, is responsible for the effects of C. parvum oocysts on intestinal epithelium.
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Affiliation(s)
- R B Adams
- Department of Internal Medicine, University of Virginia Health Sciences Center, Charlottesville 22908
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