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Chen X, Li W. The heat shock protein DNAJB8 inhibits pseudorabies virus replication by autophagy. Vet Microbiol 2024; 295:110165. [PMID: 38936156 DOI: 10.1016/j.vetmic.2024.110165] [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: 04/21/2024] [Revised: 06/20/2024] [Accepted: 06/22/2024] [Indexed: 06/29/2024]
Abstract
Pseudorabies virus (PRV) effectively utilizes numerous host proteins and pathways to establish a successful infection. Consequently, it becomes imperative to investigate novel host factors implicated in viral infections to gain a deeper understanding of PRV pathogenesis. In this study, we reveal that the host heat shock protein, DNAJB8, functions as a negative regulator in PRV replication. Our findings indicated that both mRNA and protein levels of DNAJB8 were downregulated in cells infected with PRV. Further analysis demonstrated that overexpressing DNAJB8 suppressed PRV replication, whereas its knockdown enhanced viral replication. From a mechanistic perspective, DNAJB8 promoted cellular autophagy, subsequently impeding viral replication. Additionally, we discovered that the transcription factor SOX30 regulated DNAJB8 expression, thereby influencing viral replication. Collectively, these findings enhance our comprehension of the roles played by DNAJB8 and SOX30 in viral replication, broadening our knowledge of virus-host interactions.
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Affiliation(s)
- Xiaoyong Chen
- Xingzhi College, Zhejiang Normal University, Jinhua, Zhejiang, PR China.
| | - Wenfeng Li
- College of Animal Science, Wenzhou Vocational College of Technology and Science, Wenzhou, Zhejiang, PR China
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Ao F, Li X, Tan Y, Jiang Z, Yang F, Guo J, Zhu Q, Chen Z, Zhou B, Zhang K, Li D. STING agonist-based hydrogel enhances immune activation in synergy with radiofrequency ablation for hepatocellular carcinoma treatment. J Control Release 2024; 369:296-308. [PMID: 38301925 DOI: 10.1016/j.jconrel.2024.01.048] [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: 08/03/2023] [Revised: 01/22/2024] [Accepted: 01/23/2024] [Indexed: 02/03/2024]
Abstract
Immunosuppression caused by incomplete radiofrequency ablation (iRFA) is a crucial factor affecting the effectiveness of RFA for solid tumors. However, little is known about the changes iRFA induces in the tumor immune microenvironment (TIME) of hepatocellular carcinoma (HCC), the primary application area for RFA. In this study, we found iRFA promotes a suppressive TIME in residual HCC tumors, characterized by M2 macrophage polarization, inhibited antigen presentation by dendritic cells (DCs), and reduced infiltration of cytotoxic T lymphocytes (CTLs). Interestingly, the STING agonist MSA-2 was able to reorganize M2-like tumor-promoting macrophages into M1-like anti-tumor states and enhance antigen presentation by DCs. To optimize the therapeutic effect of MSA-2, we used a calcium ion (Ca2+) responsive sodium alginate (ALG) as a carrier, forming an injectable hydrogel named ALG@MSA-2. This hydrogel can change from liquid to gel, maintaining continuous drug release in situ. Our results suggested that ALG@MSA-2 effectively activated anti-tumor immunity, as manifested by increased M1-like macrophage polarization, enhanced antigen presentation by DCs, increased CTL infiltration, and inhibited residual tumor growth. ALG@MSA-2 also resulted in a complete regression of contralateral tumors and widespread liver metastases in vivo. In addition, the excellent biosafety of ALG@MSA-2 was also proved by blood biochemical analysis and body weight changes in mice. In summary, this study demonstrated that the immune cascade of ALG@MSA-2 mediated the STING pathway activation and promoted a favorable TIME which might provide novel insights for the RFA treatment of HCC.
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Affiliation(s)
- Feng Ao
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China
| | - Xi Li
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China
| | - Yan Tan
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China
| | - Zebo Jiang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China
| | - Fan Yang
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Department of Pediatrics, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, Guangdong Province, China
| | - Jingpei Guo
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China
| | - Qiancheng Zhu
- Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China
| | - Zhongguo Chen
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China
| | - Bin Zhou
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China.
| | - Ke Zhang
- Center for Interventional Medicine, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China.
| | - Dan Li
- Department of Nuclear Medicine, the Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai 519000, China; Guangdong Provincial Engineering Research Center of Molecular Imaging, The Fifth Affiliated Hospital, Sun Yat-sen University, Zhuhai, Guangdong Province 519000, China; Guangdong-Hong Kong-Macao University Joint Laboratory of Interventional Medicine, the Fifth Affiliated Hospital, Sun Yat-Sen University, Zhuhai 519000, China.
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Qin F, Cai B, Cao R, Bai X, Yuan J, Zhang Y, Liu Y, Chen T, Liu F, Sun W, Zheng Y, Qi X, Zhao W, Liu B, Gao C. Listerin promotes cGAS protein degradation through the ESCRT pathway to negatively regulate cGAS-mediated immune response. Proc Natl Acad Sci U S A 2023; 120:e2308853120. [PMID: 38109536 PMCID: PMC10756308 DOI: 10.1073/pnas.2308853120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Accepted: 10/27/2023] [Indexed: 12/20/2023] Open
Abstract
The enzyme cyclic GMP-AMP synthase (cGAS) is a key sensor for detecting misplaced double-stranded DNA (dsDNA) of genomic, mitochondrial, and microbial origin. It synthesizes 2'3'-cGAMP, which in turn activates the stimulator of interferon genes pathway, leading to the initiation of innate immune responses. Here, we identified Listerin as a negative regulator of cGAS-mediated innate immune response. We found that Listerin interacts with cGAS on endosomes and promotes its K63-linked ubiquitination through recruitment of the E3 ligase TRIM27. The polyubiquitinated cGAS is then recognized by the endosomal sorting complexes required for transport machinery and sorted into endosomes for degradation. Listerin deficiency enhances the innate antiviral response to herpes simplex virus 1 infection. Genetic deletion of Listerin also deteriorates the neuroinflammation and the ALS disease progress in an ALS mice model; overexpression of Listerin can robustly ameliorate disease progression in ALS mice. Thus, our work uncovers a mechanism for cGAS regulation and suggests that Listerin may be a promising therapeutic target for ALS disease.
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Affiliation(s)
- Fei Qin
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Baoshan Cai
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Runyu Cao
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Xuemei Bai
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Jiahua Yuan
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Yuling Zhang
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Yaxing Liu
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Tian Chen
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Pathogenic Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Feng Liu
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Wanwei Sun
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Yi Zheng
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Xiaopeng Qi
- Advanced Medical Research Institute, Cheeloo College of Medicine, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Wei Zhao
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Pathogenic Biology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Bingyu Liu
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
| | - Chengjiang Gao
- Department of Immunology and Key Laboratory of Infection and Immunity of Shandong Province & Key Laboratory for Experimental Teratology of Ministry of Education, Shandong University, Jinan, Shandong250012, People’s Republic of China
- Department of Immunology, School of Basic Medical Sciences, Shandong University, Jinan, Shandong250012, People’s Republic of China
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Wang X, Li Y, Dong S, Wang C, Wang Y, Zhang H. Transcriptomic analysis reveals impact of gE/gI/TK deletions on host response to PRV infection. Virol J 2023; 20:303. [PMID: 38115115 PMCID: PMC10731697 DOI: 10.1186/s12985-023-02265-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Pseudorabies virus (PRV) causes substantial losses in the swine industry worldwide. Attenuated PRV strains with deletions of immunomodulatory genes glycoprotein E (gE), glycoprotein I (gI) and thymidine kinase (TK) are candidate vaccines. However, the effects of gE/gI/TK deletions on PRV-host interactions are not well understood. METHODS To characterize the impact of gE/gI/TK deletions on host cells, we analyzed and compared the transcriptomes of PK15 cells infected with wild-type PRV (SD2017), PRV with gE/gI/TK deletions (SD2017gE/gI/TK) using RNA-sequencing. RESULTS The attenuated SD2017gE/gI/TK strain showed increased expression of inflammatory cytokines and pathways related to immunity compared to wild-type PRV. Cell cycle regulation and metabolic pathways were also perturbed. CONCLUSIONS Deletion of immunomodulatory genes altered PRV interactions with host cells and immune responses. This study provides insights into PRV vaccine design.
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Affiliation(s)
- Xiaoli Wang
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, Taian, China
| | - Yingguang Li
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Shaoming Dong
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Cong Wang
- China animal husbandry industry Co., Ltd, Beijing, China
| | - Yongming Wang
- Shandong Huahong Biological Engineering Co., Ltd, Binzhou, China
| | - Hongliang Zhang
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China.
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Paulis A, Tramontano E. Unlocking STING as a Therapeutic Antiviral Strategy. Int J Mol Sci 2023; 24:ijms24087448. [PMID: 37108610 PMCID: PMC10138487 DOI: 10.3390/ijms24087448] [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: 03/11/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
Invading pathogens have developed weapons that subvert physiological conditions to weaken the host and permit the spread of infection. Cells, on their side, have thus developed countermeasures to maintain cellular physiology and counteract pathogenesis. The cyclic GMP-AMP (cGAMP) synthase (cGAS) is a pattern recognition receptor that recognizes viral DNA present in the cytosol, activating the stimulator of interferon genes (STING) protein and leading to the production of type I interferons (IFN-I). Given its role in innate immunity activation, STING is considered an interesting and innovative target for the development of broad-spectrum antivirals. In this review, we discuss the function of STING; its modulation by the cellular stimuli; the molecular mechanisms developed by viruses, through which they escape this defense system; and the therapeutical strategies that have been developed to date to inhibit viral replication restoring STING functionality.
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Affiliation(s)
- Annalaura Paulis
- Department of Life and Environmental Sciences, Università Degli Studi di Cagliari, 09124 Cagliari, Italy
| | - Enzo Tramontano
- Department of Life and Environmental Sciences, Università Degli Studi di Cagliari, 09124 Cagliari, Italy
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Zhang H, Duan X, Liu G, Li Y, Dong S, Lin J, Zhang R, Cai X, Shan H. Comparative transcriptomic analysis of PK15 cells infected with a PRV variant and the Bartha-K/61 vaccine strain. Front Microbiol 2023; 14:1164170. [PMID: 37213521 PMCID: PMC10196252 DOI: 10.3389/fmicb.2023.1164170] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2023] [Accepted: 04/04/2023] [Indexed: 05/23/2023] Open
Abstract
Introduction Pseudorabies virus (PRV) is a herpesvirus that can infect domestic animals, such as pigs, cattle and sheep, and cause fever, itching (except pigs), and encephalomyelitis. In particular, the emergence of PRV variants in 2011 have resulted in serious economic losses to the Chinese pig industry. However, the signaling pathways mediated by PRV variants and their related mechanisms are not fully understood. Methods Here, we performed RNA-seq to compare the gene expression profiling between PRV virulent SD2017-infected PK15 cells and Bartha-K/61-infected PK15 cells. Results The results showed that 5,030 genes had significantly different expression levels, with 2,239 upregulated and 2,791 downregulated. GO enrichment analysis showed that SD2017 significantly up-regulated differentially expressed genes (DEGs) were mainly enriched in the binding of cell cycle, protein and chromatin, while down-regulated DEGs were mainly enriched in ribosomes. KEGG enrichment analysis revealed that the pathways most enriched for upregulated DEGs were pathways in cancer, cell cycle, microRNAs in cancer, mTOR signaling pathway and autophagy-animal. The most down-regulated pathways of DEGs enrichment were ribosome, oxidative phosphorylation, and thermogenesis. These KEGG pathways were involved in cell cycle, signal transduction, autophagy, and virus-host cell interactions. Discussion Our study provides a general overview of host cell responses to PRV virulent infection and lays a foundation for further study of the infection mechanism of PRV variant strain.
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Affiliation(s)
- Hongliang Zhang
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Xiaoxiao Duan
- Qingdao Animal Disease Prevention and Control Center, Qingdao, China
| | - Gang Liu
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Yingguang Li
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Shaoming Dong
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Jiaxu Lin
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - Ruihua Zhang
- Key Laboratory of Preventive Veterinary Medicine, Department of Veterinary Medicine, Animal Science College, Hebei North University, Zhangjiakou, China
- *Correspondence: Ruihua Zhang
| | - Xiulei Cai
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
- Xiulei Cai
| | - Hu Shan
- Shandong Collaborative Innovation Center for Development of Veterinary Pharmaceuticals, College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
- Hu Shan
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