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Chen K, Ou B, Huang Q, Deng D, Xiang Y, Hu F. LncRNA NEAT1 aggravates human microvascular endothelial cell injury by inhibiting the Apelin/Nrf2/HO-1 signalling pathway in type 2 diabetes mellitus with obstructive sleep apnoea. Epigenetics 2024; 19:2293409. [PMID: 38232183 PMCID: PMC10795783 DOI: 10.1080/15592294.2023.2293409] [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: 09/06/2023] [Accepted: 12/05/2023] [Indexed: 01/19/2024] Open
Abstract
Long noncoding RNAs (lncRNAs) regulate the progression of type 2 diabetes mellitus complicated with obstructive sleep apnoea (T2DM-OSA). However, the role of the lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) in T2DM-OSA remains unknown. This study aimed to reveal the function of NEAT1 in T2DM-OSA and the underlying mechanism. KKAy mice were exposed to intermittent hypoxia (IH) or intermittent normoxia to generate a T2DM-OSA mouse model. HMEC-1 cells were treated with high glucose (HG) and IH to construct a T2DM-OSA cell model. RNA expression was detected by qRT-PCR. The protein expression of Apelin, NF-E2-related factor 2 (Nrf2), haem oxygenase-1 (HO-1), and up-frameshift suppressor 1 (UPF1) was assessed using western blot. Cell injury was evaluated using flow cytometry, enzyme-linked immunosorbent assay, and oxidative stress kit assays. RIP, RNA pull-down, and actinomycin D assays were performed to determine the associations between NEAT1, UPF1, and Apelin. NEAT1 expression was upregulated in the aortic vascular tissues of mice with T2DM exposed to IH and HMEC-1 cells stimulated with HG and IH, whereas Apelin expression was downregulated. The absence of NEAT1 protected HMEC-1 cells from HG- and IH-induced damage. Furthermore, NEAT1 destabilized Apelin mRNA by recruiting UPF1. Apelin overexpression decreased HG- and IH-induced injury to HMEC-1 cells by activating the Nrf2/HO-1 pathway. Moreover, NEAT1 knockdown reduced HG- and IH-induced injury to HMEC-1 cells through Apelin. NEAT1 silencing reduced HMEC-1 cell injury through the Apelin/Nrf2/HO-1 signalling pathway in T2DM-OSA.Abbreviations: LncRNAs, long non-coding RNAs; T2DM, type 2 diabetes mellitus; OSA, obstructive sleep apnoea; NEAT1, nuclear paraspeckle assembly transcript 1; IH, intermittent hypoxia; HMEC-1, human microvascular endothelial cells; HG, high glucose; Nrf2, NF-E2-related factor 2; UPF1, up-frameshift suppressor 1; HO-1, haem oxygenase-1; qRT-PCR, quantitative real-time polymerase chain reaction; ELISA, enzyme-linked immunosorbent assay; GAPDH, glyceraldehyde 3-phosphate dehydrogenase; TNF-α, tumour necrosis factor-α; CCK-8, Cell Counting Kit-8; IL-1β, interleukin-1β; ROS, reactive oxygen species; MDA, malondialdehyde; SOD, superoxide dismutase; RIP, RNA immunoprecipitation; SD, standard deviations; GSH, glutathione; AIS, acute ischaemic stroke; HMGB1, high mobility group box-1 protein; TLR4, toll-like receptor 4.
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Affiliation(s)
- Kai Chen
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Baiqing Ou
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Quan Huang
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Daqing Deng
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Yi Xiang
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Fang Hu
- Comprehensive internal medicine of Hunan Provincial People’s Hospital, Changsha, Hunan, China
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2
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Buchan JR. Stress granule and P-body clearance: Seeking coherence in acts of disappearance. Semin Cell Dev Biol 2024; 159-160:10-26. [PMID: 38278052 PMCID: PMC10939798 DOI: 10.1016/j.semcdb.2024.01.002] [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: 01/04/2024] [Accepted: 01/07/2024] [Indexed: 01/28/2024]
Abstract
Stress granules and P-bodies are conserved cytoplasmic biomolecular condensates whose assembly and composition are well documented, but whose clearance mechanisms remain controversial or poorly described. Such understanding could provide new insight into how cells regulate biomolecular condensate formation and function, and identify therapeutic strategies in disease states where aberrant persistence of stress granules in particular is implicated. Here, I review and compare the contributions of chaperones, the cytoskeleton, post-translational modifications, RNA helicases, granulophagy and the proteasome to stress granule and P-body clearance. Additionally, I highlight the potentially vital role of RNA regulation, cellular energy, and changes in the interaction networks of stress granules and P-bodies as means of eliciting clearance. Finally, I discuss evidence for interplay of distinct clearance mechanisms, suggest future experimental directions, and suggest a simple working model of stress granule clearance.
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Affiliation(s)
- J Ross Buchan
- Department of Molecular and Cellular Biology, University of Arizona, Tucson 85716, United States.
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3
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Zeng H, Zhuang Y, Yan X, He X, Qiu Q, Liu W, Zhang Y. Machine learning-based identification of novel hub genes associated with oxidative stress in lupus nephritis: implications for diagnosis and therapeutic targets. Lupus Sci Med 2024; 11:e001126. [PMID: 38637124 PMCID: PMC11029281 DOI: 10.1136/lupus-2023-001126] [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: 12/07/2023] [Accepted: 03/28/2024] [Indexed: 04/20/2024]
Abstract
BACKGROUND Lupus nephritis (LN) is a complication of SLE characterised by immune dysfunction and oxidative stress (OS). Limited options exist for LN. We aimed to identify LN-related OS, highlighting the need for non-invasive diagnostic and therapeutic approaches. METHODS LN-differentially expressed genes (DEGs) were extracted from Gene Expression Omnibus datasets (GSE32591, GSE112943 and GSE104948) and Molecular Signatures Database for OS-associated DEGs (OSEGs). Functional enrichment analysis was performed for OSEGs related to LN. Weighted gene co-expression network analysis identified hub genes related to OS-LN. These hub OSEGs were refined as biomarker candidates via least absolute shrinkage and selection operator. The predictive value was validated using receiver operating characteristic (ROC) curves and nomogram for LN prognosis. We evaluated LN immune cell infiltration using single-sample gene set enrichment analysis and CIBERSORT. Additionally, gene set enrichment analysis explored the functional enrichment of hub OSEGs in LN. RESULTS The study identified four hub genes, namely STAT1, PRODH, TXN2 and SETX, associated with OS related to LN. These genes were validated for their diagnostic potential, and their involvement in LN pathogenesis was elucidated through ROC and nomogram. Additionally, alterations in immune cell composition in LN correlated with hub OSEG expression were observed. Immunohistochemical analysis reveals that the hub gene is most correlated with activated B cells and CD8 T cells. Finally, we uncovered that the enriched pathways of OSEGs were mainly involved in the PI3K-Akt pathway and the Janus kinase-signal transducer and activator of transcription pathway. CONCLUSION These findings contribute to advancing our understanding of the complex interplay between OS, immune dysregulation and molecular pathways in LN, laying a foundation for the identification of potential diagnostic biomarkers and therapeutic targets.
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Affiliation(s)
- Huiqiong Zeng
- Traditional Chinese Medicine Department of Immunology, Women & Children Health Institute Futian Shenzhen, Shenzhen, China
| | - Yu Zhuang
- Department of Rheumatology and Immunology, Huizhou Central People's Hospital, Huizhou, China
| | - Xiaodong Yan
- School of Basic Medical Sciences, Yunnan University of Chinese Medicine, Kunming, China
| | - Xiaoyan He
- Department of Fu Xin Community Health Service Center, The Eighth Affiliated Hospital of Sun Yat-Sen University, Shenzhen, China
| | - Qianwen Qiu
- Traditional Chinese Medicine Department of Immunology, Women & Children Health Institute Futian Shenzhen, Shenzhen, China
| | - Wei Liu
- Department of Rheumatology, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
- National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin, China
| | - Ye Zhang
- Traditional Chinese Medicine Department of Immunology, Women & Children Health Institute Futian Shenzhen, Shenzhen, China
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4
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Deng W, Bao L, Song Z, Zhang L, Yu P, Xu Y, Wang J, Zhao W, Zhang X, Han Y, Li Y, Liu J, Lv Q, Liang X, Li F, Qi F, Deng R, Wang S, Xiong Y, Xiao R, Wang H, Qin C. Infection with SARS-CoV-2 can cause pancreatic impairment. Signal Transduct Target Ther 2024; 9:98. [PMID: 38609366 PMCID: PMC11014980 DOI: 10.1038/s41392-024-01796-2] [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: 10/21/2023] [Revised: 02/25/2024] [Accepted: 03/06/2024] [Indexed: 04/14/2024] Open
Abstract
Evidence suggests associations between COVID-19 patients or vaccines and glycometabolic dysfunction and an even higher risk of the occurrence of diabetes. Herein, we retrospectively analyzed pancreatic lesions in autopsy tissues from 67 SARS-CoV-2 infected non-human primates (NHPs) models and 121 vaccinated and infected NHPs from 2020 to 2023 and COVID-19 patients. Multi-label immunofluorescence revealed direct infection of both exocrine and endocrine pancreatic cells by the virus in NHPs and humans. Minor and limited phenotypic and histopathological changes were observed in adult models. Systemic proteomics and metabolomics results indicated metabolic disorders, mainly enriched in insulin resistance pathways, in infected adult NHPs, along with elevated fasting C-peptide and C-peptide/glucose ratio levels. Furthermore, in elder COVID-19 NHPs, SARS-CoV-2 infection causes loss of beta (β) cells and lower expressed-insulin in situ characterized by islet amyloidosis and necrosis, activation of α-SMA and aggravated fibrosis consisting of lower collagen in serum, an increase of pancreatic inflammation and stress markers, ICAM-1 and G3BP1, along with more severe glycometabolic dysfunction. In contrast, vaccination maintained glucose homeostasis by activating insulin receptor α and insulin receptor β. Overall, the cumulative risk of diabetes post-COVID-19 is closely tied to age, suggesting more attention should be paid to blood sugar management in elderly COVID-19 patients.
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Affiliation(s)
- Wei Deng
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Linlin Bao
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Zhiqi Song
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Ling Zhang
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Pin Yu
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Yanfeng Xu
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Jue Wang
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, 100871, China
| | - Wenjie Zhao
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Xiuqin Zhang
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, 100871, China
| | - Yunlin Han
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Yanhong Li
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Jiangning Liu
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Qi Lv
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Xujian Liang
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Fengdi Li
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Feifei Qi
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Ran Deng
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Siyuan Wang
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Yibai Xiong
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China
| | - Ruiping Xiao
- Institute of Molecular Medicine, College of Future Technology, Peking University, Beijing, 100871, China.
- Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing, 100871, China.
- State Key Laboratory of Biomembrane and Membrane Biotechnology, Peking-Tsinghua Center for Life Sciences, Beijing, 100871, China.
| | - Hongyang Wang
- Chinese Academy of Engineering, Eastern Hepatobiliary Surgery Hospital, 225 Changhai Road, Yangpu District, Shanghai, 200438, China.
- International Co-operation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute, Second Military Medical University, Shanghai, 200438, PR China.
- National Laboratory for Oncogenes and Related Genes, Cancer Institute of Shanghai Jiao Tong University, Shanghai, 200441, PR China.
| | - Chuan Qin
- NHC Key Laboratory of Comparative Medicine, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, 100021, China.
- Changping National laboratory (CPNL), Beijing, 102206, China.
- State Key Laboratory of Respiratory Health and Multimorbidity, National Health Commission of the People's Republic of China, Beijing, PR China.
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5
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Eke L, Tweedie A, Cutts S, Wise EL, Elliott G. Translational arrest and mRNA decay are independent activities of alphaherpesvirus virion host shutoff proteins. J Gen Virol 2024; 105. [PMID: 38572740 DOI: 10.1099/jgv.0.001976] [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] [Indexed: 04/05/2024] Open
Abstract
The herpes simplex virus 1 (HSV1) virion host shutoff (vhs) protein is an endoribonuclease that regulates the translational environment of the infected cell, by inducing the degradation of host mRNA via cellular exonuclease activity. To further understand the relationship between translational shutoff and mRNA decay, we have used ectopic expression to compare HSV1 vhs (vhsH) to its homologues from four other alphaherpesviruses - varicella zoster virus (vhsV), bovine herpesvirus 1 (vhsB), equine herpesvirus 1 (vhsE) and Marek's disease virus (vhsM). Only vhsH, vhsB and vhsE induced degradation of a reporter luciferase mRNA, with poly(A)+ in situ hybridization indicating a global depletion of cytoplasmic poly(A)+ RNA and a concomitant increase in nuclear poly(A)+ RNA and the polyA tail binding protein PABPC1 in cells expressing these variants. By contrast, vhsV and vhsM failed to induce reporter mRNA decay and poly(A)+ depletion, but rather, induced cytoplasmic G3BP1 and poly(A)+ mRNA- containing granules and phosphorylation of the stress response proteins eIF2α and protein kinase R. Intriguingly, regardless of their apparent endoribonuclease activity, all vhs homologues induced an equivalent general blockade to translation as measured by single-cell puromycin incorporation. Taken together, these data suggest that the activities of translational arrest and mRNA decay induced by vhs are separable and we propose that they represent sequential steps of the vhs host interaction pathway.
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Affiliation(s)
- Lucy Eke
- Section of Virology, Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, UK
| | - Alistair Tweedie
- Section of Virology, Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, UK
| | - Sophie Cutts
- Section of Virology, Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, UK
| | - Emma L Wise
- Section of Virology, Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, UK
- Present address: UK Health Security Agency, Porton Down, Salisbury, UK
| | - Gillian Elliott
- Section of Virology, Department of Microbial Sciences, School of Biosciences, University of Surrey, Guildford, UK
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Kang FP, Chen ZW, Liao CY, Wu YD, Li G, Xie CK, Lin HY, Huang L, Tian YF, Wang ZW, Chen S. Escherichia coli-Induced cGLIS3-Mediated Stress Granules Activate the NF-κB Pathway to Promote Intrahepatic Cholangiocarcinoma Progression. Adv Sci (Weinh) 2024; 11:e2306174. [PMID: 38368261 DOI: 10.1002/advs.202306174] [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] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 02/01/2024] [Indexed: 02/19/2024]
Abstract
Patients with concurrent intrahepatic cholangiocarcinoma (ICC) and hepatolithiasis generally have poor prognoses. Hepatolithiasis is once considered the primary cause of ICC, although recent insights indicate that bacteria in the occurrence of hepatolithiasis can promote the progression of ICC. By constructing in vitro and in vivo ICC models and patient-derived organoids (PDOs), it is shown that Escherichia coli induces the production of a novel RNA, circGLIS3 (cGLIS3), which promotes tumor growth. cGLIS3 binds to hnRNPA1 and G3BP1, resulting in the assembly of stress granules (SGs) and suppression of hnRNPA1 and G3BP1 ubiquitination. Consequently, the IKKα mRNA is blocked in SGs, decreasing the production of IKKα and activating the NF-κB pathway, which finally results in chemoresistance and produces metastatic phenotypes of ICC. This study shows that a combination of Icaritin (ICA) and gemcitabine plus cisplatin (GP) chemotherapy can be a promising treatment strategy for ICC.
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Affiliation(s)
- Feng-Ping Kang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Zhi-Wen Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Cheng-Yu Liao
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Hepatobiliary Pancreatic Surgery, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Yong-Ding Wu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Ge Li
- Department of Hepatobiliary Surgery and Fujian Institute of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001, China
| | - Cheng-Ke Xie
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Hong-Yi Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Long Huang
- Department of Hepatobiliary Pancreatic Surgery, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Yi-Feng Tian
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Hepatobiliary Pancreatic Surgery, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Zu-Wei Wang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Hepatobiliary Pancreatic Surgery, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Shi Chen
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Hepatobiliary Pancreatic Surgery, Fujian Provincial Hospital, Fuzhou, 350001, China
- Fujian Key Laboratory of Geriatrics, Fujian Provincial Hospital, Fuzhou, 350001, China
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7
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Wang QQ, Zhou GZ, Wu KL, Yang YR, Li HJ, Ding J, Liu X, Li CX, Zhang L, Li SH, Zhang RX. Activation of RIG-I signaling in the early stage of Paragonimus proliferus infection causes lung injury via type I immune response in rat. J Infect Dev Ctries 2024; 18:464-472. [PMID: 38635624 DOI: 10.3855/jidc.18863] [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: 07/10/2023] [Accepted: 11/03/2023] [Indexed: 04/20/2024] Open
Abstract
Paragonimiasis is a common zoonotic parasitic disease. The retinoic acid-inducible gene I (RIG-I) signaling is very important for the host to recognize invading pathogens (especially viruses and bacteria). However, the role of RIG-I signaling in the early stages of P. proliferus infection remains unclear. Therefore, in this study, Sprague-Dawley (SD) rat models with lung damage caused by P. proliferus were established. Experimental methods including Enzyme-linked Immuno Sorbent Assay (ELISA), real-time fluorescent quantitative polymerase chain reaction (PCR), western blotting, and hematoxylin and eosin (HE) staining were used to explore the mechanisms of lung injury caused by P. proliferus. As a result, the expression of the mRNA and proteins of RIG-I signal-related key target molecules, including RIG-I, tumor necrosis factor (TNF) receptor associated factor 6 (TRAF6), interferon regulatory Factor 7 (IRF7), IPS-1, and downstream C-X-C chemokine ligand 10 (CXCL10), were significantly up-regulated immediately after infection, peaked at 3 or 7 days, and showed a downward trend on after 14 days. The levels of pro-inflammatory cytokines interleukin-1 (IL-1), interferon (IFN)-α, -β, and -γ, which represent type 1 immune response, gradually increased and reached a peak by 14 days, which was consistent with the changes in the degree of inflammatory damage observed under HE staining of lung tissues. In conclusion, RIG-I signaling is activated in the early stage (before 14 days) of P. proliferus infection, it is inferred that the lung injury of the host may be related to the activation of RIG-I like signaling to induce type I immune response.
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Affiliation(s)
- Qing-Qing Wang
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Guo-Zhong Zhou
- Office of Academic Research, The First People's Hospital of Anning, Anning, China
| | - Kun-Li Wu
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Yong-Rui Yang
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Hong-Juan Li
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Jie Ding
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Xing Liu
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Chong-Xi Li
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Lu Zhang
- School of Public Health, Dali University, Dali City, China
| | - Sheng-Hao Li
- Department of Hepatology 1, The Third People's Hospital of Kunming/Yunnan Clinical Center for Infectious Diseases, Kunming, China
| | - Rui-Xian Zhang
- Department of Disease Control and Prevention, The First People's Hospital of Yunnan Province / The Affiliated Hospital of Kunming University of Science and Technology, Kunming, China
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8
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Portolés I, Ribera J, Fernandez-Galán E, Lecue E, Casals G, Melgar-Lesmes P, Fernández-Varo G, Boix L, Sanduzzi M, Aishwarya V, Reig M, Jiménez W, Morales-Ruiz M. Identification of Dhx15 as a Major Regulator of Liver Development, Regeneration, and Tumor Growth in Zebrafish and Mice. Int J Mol Sci 2024; 25:3716. [PMID: 38612527 PMCID: PMC11011938 DOI: 10.3390/ijms25073716] [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: 02/26/2024] [Revised: 03/15/2024] [Accepted: 03/25/2024] [Indexed: 04/14/2024] Open
Abstract
RNA helicase DHX15 plays a significant role in vasculature development and lung metastasis in vertebrates. In addition, several studies have demonstrated the overexpression of DHX15 in the context of hepatocellular carcinoma. Therefore, we hypothesized that this helicase may play a significant role in liver regeneration, physiology, and pathology. Dhx15 gene deficiency was generated by CRISPR/Cas9 in zebrafish and by TALEN-RNA in mice. AUM Antisense-Oligonucleotides were used to silence Dhx15 in wild-type mice. The hepatocellular carcinoma tumor induction model was generated by subcutaneous injection of Hepa 1-6 cells. Homozygous Dhx15 gene deficiency was lethal in zebrafish and mouse embryos. Dhx15 gene deficiency impaired liver organogenesis in zebrafish embryos and liver regeneration after partial hepatectomy in mice. Also, heterozygous mice presented decreased number and size of liver metastasis after Hepa 1-6 cells injection compared to wild-type mice. Dhx15 gene silencing with AUM Antisense-Oligonucleotides in wild-type mice resulted in 80% reduced expression in the liver and a significant reduction in other major organs. In addition, Dhx15 gene silencing significantly hindered primary tumor growth in the hepatocellular carcinoma experimental model. Regarding the potential use of DHX15 as a diagnostic marker for liver disease, patients with hepatocellular carcinoma showed increased levels of DHX15 in blood samples compared with subjects without hepatic affectation. In conclusion, Dhx15 is a key regulator of liver physiology and organogenesis, is increased in the blood of cirrhotic and hepatocellular carcinoma patients, and plays a key role in controlling hepatocellular carcinoma tumor growth and expansion in experimental models.
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Affiliation(s)
- Irene Portolés
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
| | - Jordi Ribera
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
| | - Esther Fernandez-Galán
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
| | - Elena Lecue
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
| | - Gregori Casals
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Commission for the Biochemical Evaluation of the Hepatic Disease-SEQCML, 08036 Barcelona, Spain
| | - Pedro Melgar-Lesmes
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Biomedicine Department, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Guillermo Fernández-Varo
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
| | - Loreto Boix
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Barcelona Clinic Liver Cancer Group, Liver Unit, Hospital Clinic, University of Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Marco Sanduzzi
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Barcelona Clinic Liver Cancer Group, Liver Unit, Hospital Clinic, University of Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Veenu Aishwarya
- AUM LifeTech, Inc., 3675 Market Street, Suite 200, Philadelphia, PA 19104, USA;
| | - Maria Reig
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Barcelona Clinic Liver Cancer Group, Liver Unit, Hospital Clinic, University of Barcelona, Institut d’Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), 08036 Barcelona, Spain
| | - Wladimiro Jiménez
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Biomedicine Department, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
| | - Manuel Morales-Ruiz
- Biochemistry and Molecular Genetics Department-CDB, Hospital Clínic of Barcelona, Fundació de Recerca Clínic Barcelona-Institut d’Investigacions Biomèdiques August Pi i Sunyer (FRCB-IDIBAPS), 170 Villarroel St. Barcelona, 08036 Barcelona, Spain; (I.P.); (J.R.); (E.F.-G.); (E.L.); (G.C.); (P.M.-L.); (G.F.-V.); (W.J.)
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), 28222 Madrid, Spain; (L.B.); (M.S.); (M.R.)
- Commission for the Biochemical Evaluation of the Hepatic Disease-SEQCML, 08036 Barcelona, Spain
- Biomedicine Department, Faculty of Medicine and Health Sciences, University of Barcelona, 08036 Barcelona, Spain
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9
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Zhao Z, Cai Y, Lin X, Liu N, Qin Y, Wu Y. The Role of Heat-Induced Stress Granules in the Blood-Testis Barrier of Mice. Int J Mol Sci 2024; 25:3637. [PMID: 38612449 PMCID: PMC11011666 DOI: 10.3390/ijms25073637] [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: 02/25/2024] [Revised: 03/15/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Stress granules (SGs) are membraneless ribonucleoprotein (RNP)-based cellular foci formed in response to stress, facilitating cell survival by protecting against damage. Mammalian spermatogenesis should be maintained below body temperature for proper development, indicating its vulnerability to heat stress (HS). In this study, biotin tracer permeability assays showed that the inhibition of heat-induced SG assembly in the testis by 4-8 mg/kg cycloheximide significantly increased the percentage of seminiferous tubules with a damaged blood-testis barrier (BTB). Western blot results additionally revealed that the suppression of heat-induced SG assembly in Sertoli cell line, TM4 cells, by RNA inference of G3bp1/2 aggravated the decline in the BTB-related proteins ZO-1, β-Catenin and Claudin-11, indicating that SGs could protect the BTB against damage caused by HS. The protein components that associate with SGs in Sertoli cells were isolated by sequential centrifugation and immunoprecipitation, and were identified by liquid chromatography with tandem mass spectrometry. Gene Ontology and KEGG pathway enrichment analysis revealed that their corresponding genes were mainly involved in pathways related to proteasomes, nucleotide excision repair, mismatch repair, and DNA replication. Furthermore, a new SG component, the ubiquitin associated protein 2 (UBAP2), was found to translocate to SGs upon HS in TM4 cells by immunofluorescence. Moreover, SG assembly was significantly diminished after UBAP2 knockdown by RNA inference during HS, suggesting the important role of UBAP2 in SG assembly. In addition, UBAP2 knockdown reduced the expression of ZO-1, β-Catenin and Claudin-11, which implied its potential role in the function of the BTB. Overall, our study demonstrated the role of SGs in maintaining BTB functions during HS and identified a new component implicated in SG formation in Sertoli cells. These findings not only offer novel insights into the biological functions of SGs and the molecular mechanism of low fertility in males in summer, but also potentially provide an experimental basis for male fertility therapies.
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Affiliation(s)
- Zhifeng Zhao
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Yuqing Cai
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Xinyi Lin
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
| | - Ning Liu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing 100193, China
| | - Yinghe Qin
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing 100193, China
| | - Yingjie Wu
- College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
- State Key Laboratory of Animal Nutrition and Feeding, China Agricultural University, Beijing 100193, China
- National Engineering Laboratory for Animal Breeding, China Agricultural University, Beijing 100193, China
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10
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Haratz KK, Malinger G, Erlik U, Goldstein R, Shohat M, Birnbaum R. A de novo pathogenic variant in DHX30 gene in a fetus with isolated dysgenesis of the corpus callosum. Prenat Diagn 2024; 44:357-359. [PMID: 38366977 DOI: 10.1002/pd.6536] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 01/02/2024] [Accepted: 02/01/2024] [Indexed: 02/19/2024]
Abstract
A 36 years old woman in her first pregnancy was referred at 24w3d for a dedicated neurosonographic examination due to a suspected short corpus callosum (CC). The examination depicted a dysgenetic CC with asymmetric thickness at the level of the body in coronal views, very thin in the midline and thicker in both sides, suggesting bilateral formation of Probst bundles. The BPD, HC, and transverse cerebellar diameters were in the normal low range without associated growth restriction. Associated anomalies were not detected in the brain or other organs. Following genetic consultation and a normal CMA, trio exome sequencing was performed and a de novo missense pathogenic mutation c.2353 C > T in the DHX30 gene was detected. This variant has been previously reported in children and adults, mostly with a severe phenotype including neurodevelopmental disorder with variable motor and language impairment, but also mild phenotypes have been reported. MRI describes delayed myelination, ventriculomegaly, and cortical and cerebellar atrophy as imaging features in affected patients. This is the first prenatal report of a DHX30-associated neurodevelopmental disorder in which the fetus presents with isolated callosal dysgenesis, stressing the importance of exome sequencing in fetuses with this condition, as far as it is phenotypic presentation of numerous syndromes with different outcomes.
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Affiliation(s)
- Karina Krajden Haratz
- Division of Ultrasound in Obstetrics and Gynecology, Lis Maternity and Hospital for Women's Health, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Gustavo Malinger
- Division of Ultrasound in Obstetrics and Gynecology, Lis Maternity and Hospital for Women's Health, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Uri Erlik
- Division of Ultrasound in Obstetrics and Gynecology, Lis Maternity and Hospital for Women's Health, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Rayna Goldstein
- The Genetic Institute of Maccabi Health Services, Rehovot, Israel
| | - Mordechai Shohat
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Genetic Institute of Maccabi Health Services, Rehovot, Israel
- Bioinformatics Unit, Cancer Research Center, Chaim Sheba Medical Center, Tel Hashomer, Israel
| | - Roee Birnbaum
- Division of Ultrasound in Obstetrics and Gynecology, Lis Maternity and Hospital for Women's Health, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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11
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Gulliver C, Busiau T, Byrne A, Findlay JE, Hoffmann R, Baillie GS. cAMP-phosphodiesterase 4D7 (PDE4D7) forms a cAMP signalosome complex with DHX9 and is implicated in prostate cancer progression. Mol Oncol 2024; 18:707-725. [PMID: 38126155 PMCID: PMC10920091 DOI: 10.1002/1878-0261.13572] [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: 04/22/2023] [Revised: 11/10/2023] [Accepted: 12/19/2023] [Indexed: 12/23/2023] Open
Abstract
A robust body of work has demonstrated that a reduction in cAMP-specific 3',5'-cyclic phosphodiesterase 4D isoform 7 (PDE4D7) is linked with negative prostate cancer outcomes; however, the exact molecular mechanism that underpins this relationship is unknown. Epigenetic profiling has shown that the PDE4D gene can be hyper-methylated in transmembrane serine protease 2 (TMPRSS2)-ETS transcriptional regulator ERG (ERG) gene-fusion-positive prostate cancer (PCa) tumours, and this inhibits messenger RNA (mRNA) expression, leading to a paucity of cellular PDE4D7 protein. In an attempt to understand how the resulting aberrant cAMP signalling drives PCa growth, we immunopurified PDE4D7 and identified binding proteins by mass spectrometry. We used peptide array technology and proximity ligation assay to confirm binding between PDE4D7 and ATP-dependent RNA helicase A (DHX9), and in the design of a novel cell-permeable disruptor peptide that mimics the DHX9-binding region on PDE4D7. We discovered that PDE4D7 forms a signalling complex with the DExD/H-box RNA helicase DHX9. Importantly, disruption of the PDE4D7-DHX9 complex reduced proliferation of LNCaP cells, suggesting the complex is pro-tumorigenic. Additionally, we have identified a novel protein kinase A (PKA) phosphorylation site on DHX9 that is regulated by PDE4D7 association. In summary, we report the existence of a newly identified PDE4D7-DHX9 signalling complex that may be crucial in PCa pathogenesis and could represent a potential therapeutic target.
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Affiliation(s)
- Chloe Gulliver
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life ScienceUniversity of GlasgowUK
| | - Tara Busiau
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life ScienceUniversity of GlasgowUK
| | - Ashleigh Byrne
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life ScienceUniversity of GlasgowUK
| | - Jane E. Findlay
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life ScienceUniversity of GlasgowUK
| | - Ralf Hoffmann
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life ScienceUniversity of GlasgowUK
- Oncology SolutionsPhilips Research EuropeEindhovenThe Netherlands
| | - George S. Baillie
- School of Cardiovascular and Metabolic Health, College of Medical, Veterinary and Life ScienceUniversity of GlasgowUK
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12
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Sun B, Luo J, Li Z, Chen D, Wang Q, Si W. Muscone alleviates neuronal injury via increasing stress granules formation and reducing apoptosis in acute ischemic stroke. Exp Neurol 2024; 373:114678. [PMID: 38185313 DOI: 10.1016/j.expneurol.2024.114678] [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: 09/15/2023] [Revised: 12/10/2023] [Accepted: 01/02/2024] [Indexed: 01/09/2024]
Abstract
As the main bioactive component of musk, muscone has been reported to have marked protective effects in treating acute ischemic stroke (AIS). However, the specific anti-stroke mechanism of muscone still needs further research. In the current investigation, the PC12 cells OGD/R and the rat transient MCAO/R models were utilized as the AIS models. Serum hepatic and renal functional indexes (ALT, AST, BUN, and Cr) and cell viability were determined to select the appropriate muscone concentrations for in vitro and in vivo experiments. TTC, Hematoxylin and eosin (H&E), and Live/Dead staining were utilized to evaluate the protective effects of muscone in injured tissues and cells. Western blotting analysis, TUNEL staining, propidium iodide, and annexin V staining were applied to detect the anti-apoptotic effect of muscone. Double-label immunofluorescence staining of T-cell intracellular antigen-1 (TIA1) and Ras-GAP SH3 domain-binding protein 1 (G3BP1) was performed to observe whether muscone regulated the SG formation level. Molecular docking, TIA1 silencing and TIA1 overexpression experiments were employed to investigate the molecular mechanism underlying the regulation of SG formation by muscone. The 2, 3, 5-Triphenyl-tetrazolium chloride (TTC) staining and live/dead staining showed the AIS injury level of MCAO/R rat and the OGD/R PC12 cells were attenuated by muscone administration. The muscone significantly minimized the apoptosis rate in MCAO/R rats and OGD/R PC12 cells following flow cytometry analysis, western blotting analysis, and terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining. The double-label immunofluorescence staining data revealed that muscone promoted the SG formation level in OGD/R PC12 cells and the cortex MCAO/R rats. The results of molecular docking, TIA1 silencing and TIA1 overexpression experiments revealed that muscone could bind to TIA1 protein and regulate its expression level, thereby promoting the formation of stress granules and exerting a protective effect against AIS injury. This study indicated that the significant protective effect of muscone in reducing apoptosis levels might be via promoting SG formation under AIS conditions. This study further explores the therapeutic effect and anti-apoptosis mechanism of muscone in AIS, which may provide a potential candidate drug for the clinical treatment of AIS injury.
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Affiliation(s)
- Bin Sun
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230012, PR China
| | - Jing Luo
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230012, PR China
| | - Zhen Li
- Department of Neurology, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen, Guangdong 518104, PR China
| | - Dongfeng Chen
- Department of Anatomy, The Research Center of Basic Integrative Medicine, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong 510006, PR China
| | - Qizhang Wang
- Department of Neurology, Shenzhen Hospital of Integrated Traditional Chinese and Western Medicine, Shenzhen, Guangdong 518104, PR China
| | - Wenwen Si
- School of Integrated Chinese and Western Medicine, Anhui University of Chinese Medicine, Hefei, Anhui 230012, PR China.
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13
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Wang X, Fan X, Zhang J, Wang F, Chen J, Wen Y, Wang L, Li T, Li H, Gu H, Zhang Y, Yuan S. hnRNPA2B1 represses the disassembly of arsenite-induced stress granules and is essential for male fertility. Cell Rep 2024; 43:113769. [PMID: 38363675 DOI: 10.1016/j.celrep.2024.113769] [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: 08/21/2023] [Revised: 12/19/2023] [Accepted: 01/25/2024] [Indexed: 02/18/2024] Open
Abstract
Although the composition and assembly of stress granules (SGs) are well understood, the molecular mechanisms underlying SG disassembly remain unclear. Here, we identify that heterogeneous nuclear ribonucleoprotein A2/B1 (hnRNPA2B1) is associated with SGs and that its absence specifically enhances the disassembly of arsenite-induced SGs depending on the ubiquitination-proteasome system but not the autophagy pathway. hnRNPA2B1 interacts with many core SG proteins, including G3BP1, G3BP2, USP10, and Caprin-1; USP10 can deubiquitinate G3BP1; and hnRNPA2B1 depletion attenuates the G3BP1-USP10/Caprin-1 interaction but elevates the G3BP1 ubiquitination level under arsenite treatment. Moreover, the disease-causing mutation FUSR521C also disassembles faster from SGs in HNRNPA2B1 mutant cells. Furthermore, knockout of hnRNPA2B1 in mice leads to Sertoli cell-only syndrome (SCOS), causing complete male infertility. Consistent with this, arsenite-induced SGs disassemble faster in Hnrnpa2b1 knockout (KO) mouse Sertoli cells as well. These findings reveal the essential roles of hnRNPA2B1 in regulating SG disassembly and male mouse fertility.
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Affiliation(s)
- Xiaoli Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
| | - Xu Fan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jin Zhang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Fengli Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Jingshou Chen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Yujiao Wen
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Lingjuan Wang
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Tao Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Huaibiao Li
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Heng Gu
- NHC Key Laboratory of Male Reproduction and Genetics, Guangdong Provincial Reproductive Science Institute (Guangdong Provincial Fertility Hospital), Guangzhou 510600, China
| | - Youzhi Zhang
- School of Pharmacy, Hubei University of Science and Technology, Xianning 437100, China
| | - Shuiqiao Yuan
- Institute of Reproductive Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China; Laboratory of the Animal Center, Huazhong University of Science and Technology, Wuhan 430030, China; Shenzhen Huazhong University of Science and Technology Research Institute, Shenzhen 518057, China.
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14
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Zhu H, Li M, Bi D, Yang H, Gao Y, Song F, Zheng J, Xie R, Zhang Y, Liu H, Yan X, Kong C, Zhu Y, Xu Q, Wei Q, Qin H. Fusobacterium nucleatum promotes tumor progression in KRAS p.G12D-mutant colorectal cancer by binding to DHX15. Nat Commun 2024; 15:1688. [PMID: 38402201 PMCID: PMC10894276 DOI: 10.1038/s41467-024-45572-w] [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: 07/24/2023] [Accepted: 01/26/2024] [Indexed: 02/26/2024] Open
Abstract
Fusobacterium nucleatum (F. nucleatum) promotes intestinal tumor growth and its relative abundance varies greatly among patients with CRC, suggesting the presence of unknown, individual-specific effectors in F. nucleatum-dependent carcinogenesis. Here, we identify that F. nucleatum is enriched preferentially in KRAS p.G12D mutant CRC tumor tissues and contributes to colorectal tumorigenesis in Villin-Cre/KrasG12D+/- mice. Additionally, Parabacteroides distasonis (P. distasonis) competes with F. nucleatum in the G12D mouse model and human CRC tissues with the KRAS mutation. Orally gavaged P. distasonis in mice alleviates the F. nucleatum-dependent CRC progression. F. nucleatum invades intestinal epithelial cells and binds to DHX15, a protein of RNA helicase family expressed on CRC tumor cells, mechanistically involving ERK/STAT3 signaling. Knock out of Dhx15 in Villin-Cre/KrasG12D+/- mice attenuates the CRC phenotype. These findings reveal that the oncogenic effect of F. nucleatum depends on somatic genetics and gut microbial ecology and indicate that personalized modulation of the gut microbiota may provide a more targeted strategy for CRC treatment.
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Affiliation(s)
- Huiyuan Zhu
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
| | - Man Li
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Dexi Bi
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Huiqiong Yang
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Yaohui Gao
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Feifei Song
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Jiayi Zheng
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Ruting Xie
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Youhua Zhang
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Hu Liu
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China
| | - Xuebing Yan
- Department of Oncology, Yangzhou University Medical College Affiliated Hospital, Yangzhou, 225000, China
| | - Cheng Kong
- Department of Colorectal Surgery, Fudan University Shanghai Cancer Center, Shanghai, 200032, China
| | - Yefei Zhu
- Research Institute of Intestinal Diseases, Tongji University School of Medicine, Shanghai, 200072, China
| | - Qian Xu
- Research Institute of Intestinal Diseases, Tongji University School of Medicine, Shanghai, 200072, China
| | - Qing Wei
- Department of Pathology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
| | - Huanlong Qin
- Research Institute of Intestinal Diseases, Tongji University School of Medicine, Shanghai, 200072, China.
- Department of Gastrointestinal Surgery, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
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15
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Hong Z, He X, Duan J, Yu F, Liu H, Lu D, Wang M, Zhang Y. Prenatal diagnostic approaches diagnosed craniosynostosis and identified a novel nonsense variant in SMAD6 in a Chinese fetus. Gene 2024; 896:147994. [PMID: 37977316 DOI: 10.1016/j.gene.2023.147994] [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: 04/14/2023] [Revised: 10/06/2023] [Accepted: 11/13/2023] [Indexed: 11/19/2023]
Abstract
Craniosynostosis is one of the most common congenital craniofacial birth defects. The genetic etiology is complex, involving syndromic developmental diseases, chromosomal abnormalities, and monogenic non-syndromic diseases. Herein, we presented a proband of craniosynostosis, who firstly displayed structural abnormalities. This research conducted dynamic ultrasound monitoring a fetus with gradually developing intrauterine growth retardation (IUGR). A novel de novo variant c.41G > A: p.W14* in SMAD6 was identified by pedigree analysis and genetic examination approaches. Recombinant plasmid carrying wild-type sequence and mutant that carries c.41G > A in SMAD6 were constructed and transfected into HEK293T cells. mRNA and protein expression of SMAD6 were reduced in SMAD6 mutants compared to the wild type. Cycloheximide (CHX) treatment and si-UPF1 transfection rescued the SMAD6 mRNA expression in the mutant construct, indicating that c.41G > A: p.W14* in SMAD6 triggered nonsense-mediated mRNA degradation (NMD) process and thus led to haploinsufficiency of the protein product. Our study demonstrated that whole-exome sequencing (WES) was a powerful tool for further diagnosis and etiological identification once fetal malformation was detected by ultrasound. Novel de novo c.41G > A: p.W14* in SMAD6 is pathogenic and potentially leads to craniosynostosis via NMD process.
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Affiliation(s)
- Zhidan Hong
- Center for Reproductive Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China; Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China
| | - Xuanyi He
- Center for Reproductive Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China; Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China
| | - Jie Duan
- Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China; Department of Obstetrics, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China
| | - Fang Yu
- Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China; Department of Pathology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China
| | - Huanyu Liu
- Center for Reproductive Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China; Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China
| | - Dan Lu
- Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China; Department of Ultrasound, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China
| | - Mei Wang
- Center for Reproductive Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China; Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China
| | - Yuanzhen Zhang
- Center for Reproductive Medicine, Zhongnan Hospital of Wuhan University, Wuhan, Hubei, PR China; Clinical Medicine Research Center of Prenatal Diagnosis and Birth Health in Hubei Province, Wuhan, Hubei, PR China; Wuhan Clinical Research Center for Reproductive Science and Birth Health, Wuhan, Hubei, PR China.
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Burke JM, Ratnayake OC, Watkins JM, Perera R, Parker R. G3BP1-dependent condensation of translationally inactive viral RNAs antagonizes infection. Sci Adv 2024; 10:eadk8152. [PMID: 38295168 PMCID: PMC10830107 DOI: 10.1126/sciadv.adk8152] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 12/28/2023] [Indexed: 02/02/2024]
Abstract
G3BP1 is an RNA binding protein that condenses untranslating messenger RNAs into stress granules (SGs). G3BP1 is inactivated by multiple viruses and is thought to antagonize viral replication by SG-enhanced antiviral signaling. Here, we show that neither G3BP1 nor SGs generally alter the activation of innate immune pathways. Instead, we show that the RNAs encoded by West Nile virus, Zika virus, and severe acute respiratory syndrome coronavirus 2 are prone to G3BP1-dependent RNA condensation, which is enhanced by limiting translation initiation and correlates with the disruption of viral replication organelles and viral RNA replication. We show that these viruses counteract condensation of their RNA genomes by inhibiting the RNA condensing function of G3BP proteins, hijacking the RNA decondensing activity of eIF4A, and/or maintaining efficient translation. These findings argue that RNA condensation can function as an intrinsic antiviral mechanism, which explains why many viruses inactivate G3BP proteins and suggests that SGs may have arisen as a vestige of this antiviral mechanism.
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Affiliation(s)
- James M. Burke
- Department of Molecular Medicine, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, USA
- Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, USA
| | - Oshani C. Ratnayake
- Center for Vector-Borne and Infectious Diseases, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA
- Center for Metabolism of Infectious Diseases, Colorado State University, Fort Collins, CO 80523, USA
| | - J. Monty Watkins
- Department of Molecular Medicine, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, USA
- Department of Immunology and Microbiology, The Herbert Wertheim UF Scripps Institute for Biomedical Innovation & Technology, Jupiter, FL 33458, USA
- Skaggs Graduate School of Chemical and Biological Sciences, The Scripps Research Institute, Jupiter, FL 33438, USA
| | - Rushika Perera
- Center for Vector-Borne and Infectious Diseases, Department of Microbiology, Immunology and Pathology, Colorado State University, Fort Collins, CO 80523, USA
- Center for Metabolism of Infectious Diseases, Colorado State University, Fort Collins, CO 80523, USA
| | - Roy Parker
- Howard Hughes Medical Institute, University of Colorado Boulder, Boulder, CO 80303, USA
- BioFrontiers Institute, University of Colorado Boulder, Boulder, CO 80303, USA
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Chu J, Zheng R, Chen H, Chen Y, Lin Y, Li J, Wei W, Chen R, Deng P, Su J, Jiang J, Ye L, Liang H, An S. Dynamic m 6 A profiles reveal the role of YTHDC2-TLR2 signaling axis in Talaromyces marneffei infection. J Med Virol 2024; 96:e29466. [PMID: 38344929 DOI: 10.1002/jmv.29466] [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: 10/01/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/15/2024]
Abstract
Talaromyces marneffei (TM) immune evasion is an important factor leading to the high mortality rate of Penicilliosis marneffei. N6 -methyladenosine (m6 A) plays important roles in host immune response to various pathogen infections, yet its role in TM and HIV/TM coinfection remains largely unexplored. Here we reported genome-wide transcriptional m6 A profiles of TM mono-infection and HIV/TM coinfection. Our finding revealed dynamic alterations in global m6 A levels and upregulation of the m6 A reader YTH N6 -methyladenosine RNA binding protein C2 (YTHDC2) in TM-infected macrophages. Knockdown of YTHDC2 in TM-infected cells showed an elevated expression of TLR2 through m6 A-dependence, along with upregulation of TNF-α and IL1-β. Overall, we characterized the m6 A profiles of the host and fungus before and after TM infection, and demonstrated that YTHDC2 mediates the key m6 A site of TLR2 to exert its function. These findings provide new insights into the underlying mechanisms and novel therapeutic approaches for TM diseases.
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Affiliation(s)
- Jiemei Chu
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Ruili Zheng
- Department of Laboratory Medicine, Changxing People's Hospital of Chongming District, Shanghai, China
| | - Hubin Chen
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
| | - Yaxin Chen
- Frontiers Science Center for Disease-related Molecular Network, Institute of Respiratory Health, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Yao Lin
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
| | - Jingyi Li
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
| | - Wudi Wei
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Rongfeng Chen
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Peixue Deng
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
| | - Jinming Su
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
| | - Junjun Jiang
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Li Ye
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Hao Liang
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
- Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China
| | - Sanqi An
- Life Sciences Institute & Guangxi Collaborative Innovation Centre of Regenerative Medicine and Medical BioResource Development and Application, Guangxi Medical University, Nanning, Guangxi, China
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Feng H, Zhang J, Zhang K, Wang X, Guo Z, Wang L, Li J. Synergistic anti-infectious bronchitis virus activity of Phillygenin combined Baicalin by modulating respiratory microbiota and improving metabolic disorders. Poult Sci 2024; 103:103371. [PMID: 38150830 PMCID: PMC10788278 DOI: 10.1016/j.psj.2023.103371] [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: 09/14/2023] [Revised: 12/03/2023] [Accepted: 12/07/2023] [Indexed: 12/29/2023] Open
Abstract
Phillygenin (PHI) and Baicalin (Bai) are the major chemical ingredients extracted from Forsythia suspensa and Scutellaria baicalensis, respectively. The mixture of Forsythia suspensa and Scutellaria baicalensis according to the theories of Traditional Chinese Veterinary Medicine, compounded formulation can effectively exert heat-clearing and detoxifying effect, but the synergistic anti-IBV activity of PHI combined with Bai was unclear. Here, the protection of PHI combined with Bai on avian infectious bronchitis virus (IBV) M41 infection and the change of respiratory microbiota and metabolomics profiles in broilers that infected with IBV were investigated. According to the experimental findings, the combination of PHI and Bai effectively alleviated broilers' slowing-growth weight and respiratory symptoms. This was accompanied by a reduction in viral copies and histopathological changes, as well as an increase of antiviral protein (G3BP1) level in tracheas and anti-IBV antibody levels in serum. In addition, 16s RNA sequencing revealed that IBV infection significantly changed respiratory microbiota composition at different taxonomic levels and respiratory metabolism composition in broilers. Interestingly, PHI combined with Bai modulated the composition of respiratory microfloras, especially the abundance of Firmicutes and Lactobacillaceae were upregulated, as well as the abundance of Proteobacteria was downregulated. The metabolomics results indicated that PHI combined with Bai involved in glucose, lipids, amino acids and nucleotide metabolism during IBV infection. In summary, PHI combined with Bai exhibited a synergistic effect on preventing infectious bronchitis (IB), with the protection being closely associated with the composition of respiratory microbiota and metabolites. Therefore, adding the mixture of PHI and Bai to the chicken drinking water is recommended to prevent and control IB in clinical.
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Affiliation(s)
- Haipeng Feng
- Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730050, China
| | - Jingyan Zhang
- Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730050, China
| | - Kang Zhang
- Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730050, China
| | - Xuezhi Wang
- Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730046, China
| | - Zhiting Guo
- Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730050, China
| | - Lei Wang
- Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730050, China
| | - Jianxi Li
- Engineering & Technology Research Center of Traditional Chinese Veterinary Medicine of Gansu Province, Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou, Gansu 730050, China.
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Saemann L, Wächter K, Georgevici AI, Pohl S, Hoorn F, Veres G, Korkmaz-Icöz S, Karck M, Simm A, Szabó G. Transcriptomic Changes in the Myocardium and Coronary Artery of Donation after Circulatory Death Hearts following Ex Vivo Machine Perfusion. Int J Mol Sci 2024; 25:1261. [PMID: 38279260 PMCID: PMC10816321 DOI: 10.3390/ijms25021261] [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: 11/24/2023] [Revised: 01/08/2024] [Accepted: 01/11/2024] [Indexed: 01/28/2024] Open
Abstract
Donation after circulatory death (DCD) hearts are predominantly maintained by normothermic blood perfusion (NBP). Nevertheless, it was shown that hypothermic crystalloid perfusion (HCP) is superior to blood perfusion to recondition left ventricular (LV) contractility. However, transcriptomic changes in the myocardium and coronary artery in DCD hearts after HCP and NBP have not been investigated yet. In a pig model, DCD hearts were harvested and maintained for 4 h by NBP (DCD-BP group, N = 8) or HCP with oxygenated histidine-tryptophane-ketoglutarate (HTK) solution (DCD-HTK, N = 8) followed by reperfusion with fresh blood for 2 h. In the DCD group (N = 8), hearts underwent reperfusion immediately after procurement. In the control group (N = 7), no circulatory death was induced. We performed transcriptomics from LV myocardial and left anterior descending (LAD) samples using microarrays (25,470 genes). We applied the Boruta algorithm for variable selection to identify relevant genes. In the DCD-BP group, compared to DCD, six genes were regulated in the myocardium and 1915 genes were regulated in the LAD. In the DCD-HTK group, 259 genes were downregulated in the myocardium and 27 in the LAD; and 52 genes were upregulated in the myocardium and 765 in the LAD, compared to the DCD group. We identified seven genes of relevance for group identification: ITPRIP, G3BP1, ARRDC3, XPO6, NOP2, SPTSSA, and IL-6. NBP resulted in the upregulation of genes involved in mitochondrial calcium accumulation and ROS production, the reduction in microvascular endothelial sprouting, and inflammation. HCP resulted in the downregulation of genes involved in NF-κB-, STAT3-, and SASP-activation and inflammation.
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Affiliation(s)
- Lars Saemann
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
- Department of Cardiac Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Kristin Wächter
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
| | - Adrian-Iustin Georgevici
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
- Department of Anaesthesiology, St. Josef Hospital, Ruhr-University Bochum, 44791 Bochum, Germany
| | - Sabine Pohl
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
| | - Fabio Hoorn
- Department of Cardiac Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Gábor Veres
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
- Department of Cardiac Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Sevil Korkmaz-Icöz
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
- Department of Cardiac Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Matthias Karck
- Department of Cardiac Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
| | - Andreas Simm
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
| | - Gábor Szabó
- Department of Cardiac Surgery, University Hospital Halle (Saale), University of Halle, 06120 Halle (Saale), Germany
- Department of Cardiac Surgery, University Hospital Heidelberg, 69120 Heidelberg, Germany
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Wang S, Liu S, Zhu Y, Zhang B, Yang Y, Li L, Sun Y, Zhang L, Fan L, Hu X, Huang C. A novel and independent survival prognostic model for OSCC: the functions and prognostic values of RNA-binding proteins. Eur Arch Otorhinolaryngol 2024; 281:397-409. [PMID: 37656222 DOI: 10.1007/s00405-023-08200-9] [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: 04/04/2023] [Accepted: 08/17/2023] [Indexed: 09/02/2023]
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC), exhibiting high morbidity and malignancy, is the most common type of oral cancer. The abnormal expression of RNA-binding proteins (RBPs) plays important roles in the occurrence and progression of cancer. The objective of the present study was to establish a prognostic assessment model of RBPs and to evaluate the prognosis of OSCC patients. METHODS Gene expression data in The Cancer Genome Atlas (TCGA) were analyzed by univariate Cox regression analysis model that established a novel nine RBPs, which were used to build a prognostic risk model. A multivariate Cox proportional regression model and the survival analysis were used to evaluate the prognostic risk model. Moreover, the receive operator curve (ROC) analysis was tested further the efficiency of prognostic risk model based on data from TCGA database and Gene Expression Omnibus (GEO). RESULTS Nine RBPs' signatures (ACO1, G3BP1, NMD3, RNGTT, ZNF385A, SARS, CARS2, YARS and SMAD6) with prognostic value were identified in OSCC patients. Subsequently, the patients were further categorized into high-risk group and low-risk in the overall survival (OS) and disease-free survival (DFS), and external validation dataset. ROC analysis was significant for both the TCGA and GEO. Moreover, GSEA revealed that patients in the high-risk group significantly enriched in many critical pathways correlated with tumorigenesis than the low, including cell cycle, adheres junctions, oocyte meiosis, spliceosome, ERBB signaling pathway and ubiquitin-mediated proteolysis. CONCLUSIONS Collectively, we developed and validated a novel robust nine RBPs for OSCC prognosis prediction. The nine RBPs could serve as an independent and reliable prognostic biomarker and guiding clinical therapy for OSCC patients.
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Affiliation(s)
- Shanshan Wang
- Shenzhen Stomatology Hospital, Shenzhen, 518001, Guangdong, People's Republic of China
| | - Shuang Liu
- Shenzhen Luohu People's Hospital, Shenzhen, 518001, Guangdong, People's Republic of China
| | - Yaomin Zhu
- Shenzhen Stomatology Hospital, Shenzhen, 518001, Guangdong, People's Republic of China
| | - Baorong Zhang
- Department of Stomatology, University of Chinese Academy of Sciences Shenzhen Hospital, Songbai Road 4253, Shenzhen, 518107, Guangdong, People's Republic of China
| | - Yongtao Yang
- Shenzhen Stomatology Hospital, Shenzhen, 518001, Guangdong, People's Republic of China
| | - Limei Li
- Shenzhen Stomatology Hospital, Shenzhen, 518001, Guangdong, People's Republic of China
| | - Yingying Sun
- Shenzhen Stomatology Hospital, Shenzhen, 518001, Guangdong, People's Republic of China
| | - Long Zhang
- Department of Stomatology, University of Chinese Academy of Sciences Shenzhen Hospital, Songbai Road 4253, Shenzhen, 518107, Guangdong, People's Republic of China
| | - Lina Fan
- Department of Stomatology, The 900th Hospital of Joint Logistic Support Force, PLA, Fuzong Clinical Medical College of Fujian Medical University, Fuzhou, 350025, Fujian, China
| | - Xuegang Hu
- Department of Stomatology, University of Chinese Academy of Sciences Shenzhen Hospital, Songbai Road 4253, Shenzhen, 518107, Guangdong, People's Republic of China.
| | - Chunyu Huang
- Department of Stomatology, University of Chinese Academy of Sciences Shenzhen Hospital, Songbai Road 4253, Shenzhen, 518107, Guangdong, People's Republic of China.
- Medical Affairs Department, University of Chinese Academy of Sciences-Shenzhen Hospital, Songbai Road 4253, Shenzhen, 518107, Guangdong, China.
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Zhou G, Wang S. YTHDC2 Retards Cell Proliferation and Triggers Apoptosis in Papillary Thyroid Cancer by Regulating CYLD-Mediated Inactivation of Akt Signaling. Appl Biochem Biotechnol 2024; 196:588-603. [PMID: 37162682 DOI: 10.1007/s12010-023-04540-8] [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] [Accepted: 04/11/2023] [Indexed: 05/11/2023]
Abstract
N6-Methyladenosine (m6A) mRNA methylation modification is regarded as an important mechanism involved in diverse physiological processes. YT521-B homology (YTH) domain family members are associated with the tumorigenesis of several cancers. However, the role of YTHDC2 in papillary thyroid cancer (PTC) progression remains unknown. Results showed that YTHDC1, YTHDF1, YTHDF2, and YTHDF3 showed no observable difference in thyroid cancer samples. YTHDC2 was significantly downregulated in thyroid cancer samples and cells. YTHDC2 inhibited cell proliferation in PTC cells. YTHDC2 elicited apoptosis in PTC cells, as demonstrated by the elevated expression of pro-apoptotic factors cl-caspase-3/caspase-3 and Bcl-2-associated (Bax), and the reduced anti-apoptotic B cell lymphoma-2 (Bcl-2) expression. There was a positive correlation between YTHDC2 and cylindromatosis (CYLD) expression based on GEPIA database. YTHDC2 increased CYLD expression in PTC cells. CYLD knockdown abolished the effects of YTHDC2 on PTC cell proliferation and apoptosis. Additionally, YTHDC2 inactivated the protein kinase B (Akt) pathway by increasing CYLD in PTC cells. Overall, YTHDC2 inhibited cell proliferation and induced apoptosis in PTC cells by regulating CYLD-mediated inactivation of Akt pathway.
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Affiliation(s)
- Guangying Zhou
- Department of Thyroid and Breast Surgery, Shandong Provincial Third Hospital, Shandong University, Jinan, 250031, China
| | - Shasha Wang
- Department of Radiotherapy, the 960Th Hospital of Chinese PLA, No. 25 Shifan Road, Jinan, 250031, China.
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Hautakangas MR, Widgren P, Korpelainen P, Kangas SM, Komulainen T, Vieira P, Rahikkala E, Pylkäs K, Tuominen H, Kokkonen H, Miinalainen I, Nadaf J, Majewski J, Hinttala R, Uusimaa J. Infantile onset encephalomyopathy, retinopathy, optic atrophy, and mitochondrial DNA depletion associated with a novel pathogenic DHX16 variant. Clin Genet 2023; 104:686-693. [PMID: 37574199 DOI: 10.1111/cge.14416] [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: 06/06/2023] [Revised: 07/29/2023] [Accepted: 07/30/2023] [Indexed: 08/15/2023]
Abstract
We studied a patient with mitochondrial DNA depletion in skeletal muscle and a multiorgan phenotype, including fatal encephalomyopathy, retinopathy, optic atrophy, and sensorineural hearing loss. Instead of pathogenic variants in the mitochondrial maintenance genes, we identified previously unpublished variant in DHX16 gene, a de novo heterozygous c.1360C>T (p. Arg454Trp). Variants in DHX16 encoding for DEAH-box RNA helicase have previously been reported only in five patients with a phenotype called as neuromuscular oculoauditory syndrome including developmental delay, neuromuscular symptoms, and ocular or auditory defects with or without seizures. We performed functional studies on patient-derived fibroblasts and skeletal muscle revealing, that the DHX16 expression was decreased. Clinical features together with functional data suggest, that our patient's disease is associated with a novel pathogenic DHX16 variant, and mtDNA depletion could be a secondary manifestation of the disease.
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Affiliation(s)
- Milla-Riikka Hautakangas
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Paula Widgren
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Paavo Korpelainen
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Salla M Kangas
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Tuomas Komulainen
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Päivi Vieira
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Elisa Rahikkala
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
| | - Katri Pylkäs
- Biocenter Oulu, University of Oulu, Oulu, Finland
- Northern Finland Laboratory Centre Oulu, Oulu, Finland
| | | | - Hannaleena Kokkonen
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Northern Finland Laboratory Centre Oulu, Oulu, Finland
| | | | - Javad Nadaf
- Department of Neurology and Neurosurgery, Montreal Neurological Institute-Hospital, McGill University, Montreal, Quebec, Canada
| | - Jacek Majewski
- Department of Human Genetics, McGill University, Montreal, Quebec, Canada
| | - Reetta Hinttala
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Biocenter Oulu, University of Oulu, Oulu, Finland
| | - Johanna Uusimaa
- Research Unit of Clinical Medicine, Medical Research Center, University of Oulu, Oulu, Finland
- Oulu University Hospital, Oulu, Finland
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23
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Park S, Yang JB, Park YH, Kim YK, Jeoung D, Kim HY, Jung HS. Structural insight into crystal structure of helicase domain of DDX53. Biochem Biophys Res Commun 2023; 677:190-195. [PMID: 37603933 DOI: 10.1016/j.bbrc.2023.08.022] [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: 08/03/2023] [Accepted: 08/09/2023] [Indexed: 08/23/2023]
Abstract
DEAD box helicase proteins are a family of RNA helicases that participate in various RNA metabolisms such as RNA unwinding, RNA processing, and RNPase activities. A particular DEAD box protein, the DDX53 protein, is primarily expressed in cancer cells and plays a crucial role in tumorigenesis. Numerous studies have revealed that DDX53 interacts with various microRNA and Histone deacetylases. However, its molecular structure and the detailed binding interaction between DDX53 and microRNA or HDAC is still unclear. In this study, we used X-ray crystallography to investigate the 3D structure of the hlicase C-terminal domain of DDX53, and successfully determined its crystal structure at a resolution of 1.97 Å. Subsequently, a functional analysis of RNA was conducted by examining the binding properties thereof with DDX53 by transmission electron microscopy and computing-based molecular docking simulation. The defined 3D model of DDX53 not only provides a structural basis for the fundamental understanding of DDX53 but is also expected to contribute to the field of anti-cancer drug discovery such as structure-based drug discovery and computer-aided drug design.
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Affiliation(s)
- Suncheol Park
- Research Center for Bioconvergence Analysis, Division of Analytical Science Research, Korea Basic Science Institute, Cheongju, Chungbuk, 28119, Republic of Korea
| | - Jeong Bin Yang
- Division of Chemistry & Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea
| | - Yoon Ho Park
- Division of Chemistry & Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea
| | - Young Kwan Kim
- Panolos Bioscience Inc., Hwaseong-si, Gyeonggi-do, Republic of Korea
| | - Dooil Jeoung
- Division of Chemistry & Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea
| | - Hye-Yeon Kim
- Research Center for Bioconvergence Analysis, Division of Analytical Science Research, Korea Basic Science Institute, Cheongju, Chungbuk, 28119, Republic of Korea.
| | - Hyun Suk Jung
- Division of Chemistry & Biochemistry, College of Natural Sciences, Kangwon National University, Chuncheon, Gangwon, 24341, Republic of Korea.
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24
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Xu M, Yang M. DDX52 gene expression in LUAD tissues indicates potential as a prognostic biomarker and therapeutic target. Sci Rep 2023; 13:17434. [PMID: 37833424 PMCID: PMC10575940 DOI: 10.1038/s41598-023-44347-5] [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: 04/12/2023] [Accepted: 10/06/2023] [Indexed: 10/15/2023] Open
Abstract
Lung adenocarcinoma (LUAD) remains a leading cause of cancer-related morbidity and mortality globally. While DDX52, an ATP-dependent RNA helicase, plays a role in several biological processes, its specific involvement in LUAD is yet to be elucidated. We utilized ROC curves to determine DDX52's predictive potential for LUAD. Kaplan-Meier survival curves, along with univariate and multivariate Cox analyses, assessed the prognostic implications of DDX52 in LUAD. We constructed nomogram models to further delineate DDX52's influence on prognosis, employed GSEA for functional analysis, and used qRT-PCR to examine DDX52 expression in LUAD tissues. DDX52 expression was notably higher in LUAD tissues, suggesting its potential as a negative prognostic marker. We observed a direct relationship between DDX52 expression and advanced T and N stages, as well as higher grading and staging in LUAD patients. Cox analyses further underscored DDX52's role as an independent prognostic determinant for LUAD. GSEA insights indicated DDX52's influence on LUAD progression via multiple signaling pathways. Our nomogram, founded on DDX52 expression, effectively projected LUAD patient survival, as validated by calibration curves. Elevated DDX52 expression in LUAD tissues signals its potential as a poor prognostic marker. Our findings emphasize DDX52's role not only as an independent prognostic factor for LUAD but also as a significant influencer in its progression through diverse signaling pathways. The constructed nomogram also underscores the feasibility of predicting LUAD patient survival based on DDX52 expression.
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Affiliation(s)
- Mingming Xu
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, 20 Xisi Street, Nantong, 226001, China
| | - Mingjun Yang
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, 20 Xisi Street, Nantong, 226001, China.
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25
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Tan Q, Liu L, Wang S, Wang Q, Sun Y. Dexmedetomidine Promoted HSPB8 Expression via Inhibiting the lncRNA SNHG14/UPF1 Axis to Inhibit Apoptosis of Nerve Cells in AD : The Role of Dexmedetomidine in AD. Neurotox Res 2023; 41:471-480. [PMID: 37656385 DOI: 10.1007/s12640-023-00653-4] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 05/16/2023] [Accepted: 05/26/2023] [Indexed: 09/02/2023]
Abstract
Dexmedetomidine (Dex) is reported to play a neuroprotective role in Alzheimer's disease (AD). However, the specific mechanism remains unclear. Figure out the underlying molecular mechanism of Dex regulating nerve cell apoptosis in the AD model. The AD model in vitro was established after SH-SY5Y cells were treated with Aβ1 - 42 at (10 μM) for 24 h. The interaction among UPF1, lncRNA SNHG14, and HSPB8 was verified by RIP assay. Cell viability, apoptosis, the level of genes, and proteins were detected by CCK-8 assay, flow cytometry, Western blot, and qRT-PCR, respectively. Dex downregulated lncRNA SNHG14 level and inhibited apoptosis of nerve cells. LncRNA SNHG14 overexpression reversed the inhibitory effect of Dex on nerve cell apoptosis in the AD model. LncRNA SNHG14 attenuated HSPB8 mRNA stability by recruiting UPF1. HSPB8 overexpression inhibited apoptosis of nerve cells in the AD model. Moreover, HSPB8 knockdown reversed the inhibitory effect of Dex on nerve cell apoptosis in the AD model. Our study demonstrated that Dex promoted HSPB8 expression via inhibiting the lncRNA SNHG14/UPF1 axis to inhibit nerve cell apoptosis in AD.
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Affiliation(s)
- QingYun Tan
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - LiLi Liu
- Department of Anesthesiology, Second Department of Jiamusi Central Hospital, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - Shuo Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China
| | - QingDong Wang
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China.
| | - Yu Sun
- Department of Anesthesiology, The First Affiliated Hospital of Jiamusi University, No.348, dexiang Street, Xiangyang District, Jiamusi, 154002, Heilongjiang Province, People's Republic of China.
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26
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Zhang L, Chun Y, Irizar H, Arditi Z, Grishina G, Grishin A, Vicencio A, Bunyavanich S. Integrated study of systemic and local airway transcriptomes in asthma reveals causal mediation of systemic effects by airway key drivers. Genome Med 2023; 15:71. [PMID: 37730635 PMCID: PMC10512627 DOI: 10.1186/s13073-023-01222-2] [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: 02/28/2023] [Accepted: 08/18/2023] [Indexed: 09/22/2023] Open
Abstract
BACKGROUND Systemic and local profiles have each been associated with asthma, but parsing causal relationships between system-wide and airway-specific processes can be challenging. We sought to investigate systemic and airway processes in asthma and their causal relationships. METHODS Three hundred forty-one participants with persistent asthma and non-asthmatic controls were recruited and underwent peripheral blood mononuclear cell (PBMC) collection and nasal brushing. Transcriptome-wide RNA sequencing of the PBMC and nasal samples and a series of analyses were then performed using a discovery and independent test set approach at each step to ensure rigor. Analytic steps included differential expression analyses, coexpression and probabilistic causal (Bayesian) network constructions, key driver analyses, and causal mediation models. RESULTS Among the 341 participants, the median age was 13 years (IQR = 10-16), 164 (48%) were female, and 200 (58.7%) had persistent asthma with mean Asthma Control Test (ACT) score 16.6 (SD = 4.2). PBMC genes associated with asthma were enriched in co-expression modules for NK cell-mediated cytotoxicity (fold enrichment = 4.5, FDR = 6.47 × 10-32) and interleukin production (fold enrichment = 2.0, FDR = 1.01 × 10-15). Probabilistic causal network and key driver analyses identified NK cell granule protein (NKG7, fold change = 22.7, FDR = 1.02 × 10-31) and perforin (PRF1, fold change = 14.9, FDR = 1.31 × 10-22) as key drivers predicted to causally regulate PBMC asthma modules. Nasal genes associated with asthma were enriched in the tricarboxylic acid (TCA) cycle module (fold enrichment = 7.5 FDR = 5.09 × 10-107), with network analyses identifying G3BP stress granule assembly factor 1 (G3BP1, fold change = 9.1 FDR = 2.77 × 10-5) and InaD-like protein (INADL, fold change = 5.3 FDR = 2.98 × 10-9) as nasal key drivers. Causal mediation analyses revealed that associations between PBMC key drivers and asthma are causally mediated by nasal key drivers (FDR = 0.0076 to 0.015). CONCLUSIONS Integrated study of the systemic and airway transcriptomes in a well-phenotyped asthma cohort identified causal key drivers of asthma among PBMC and nasal transcripts. Associations between PBMC key drivers and asthma are causally mediated by nasal key drivers.
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Affiliation(s)
- Lingdi Zhang
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Yoojin Chun
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Haritz Irizar
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Zoe Arditi
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Galina Grishina
- Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Alexander Grishin
- Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Alfin Vicencio
- Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA
| | - Supinda Bunyavanich
- Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA.
- Division of Allergy and Immunology, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, 1425 Madison Avenue, New York, NY, 10029, USA.
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27
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Cao L, Hui X, Xu T, Mao H, Lin X, Huang K, Zhao L, Jin M. The RNA-Splicing Ligase RTCB Promotes Influenza A Virus Replication by Suppressing Innate Immunity via Interaction with RNA Helicase DDX1. J Immunol 2023; 211:1020-1031. [PMID: 37556111 PMCID: PMC10476163 DOI: 10.4049/jimmunol.2200799] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Accepted: 07/11/2023] [Indexed: 08/10/2023]
Abstract
The RNA-splicing ligase RNA 2',3'-cyclic phosphate and 5'-OH ligase (RTCB) is a catalytic subunit of the tRNA-splicing ligase complex, which plays an essential role in catalyzing tRNA splicing and modulating the unfolded protein response. However, the function of RTCB in influenza A virus (IAV) replication has not yet been described. In this study, RTCB was revealed to be an IAV-suppressed host factor that was significantly downregulated during influenza virus infection in several transformed cell lines, as well as in primary human type II alveolar epithelial cells, and its knockout impaired the propagation of the IAV. Mechanistically, RTCB depletion led to a robust elevation in the levels of type I and type III IFNs and proinflammatory cytokines in response to IAV infection, which was confirmed by RTCB overexpression studies. Lastly, RTCB was found to compete with DDX21 for RNA helicase DDX1 binding, attenuating the DDX21-DDX1 association and thus suppressing the expression of IFN and downstream IFN-stimulated genes. Our study indicates that RTCB plays a critical role in facilitating IAV replication and reveals that the RTCB-DDX1 binding interaction is an important innate immunomodulator for the host to counteract viral infection.
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Affiliation(s)
- Lei Cao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xianfeng Hui
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Ting Xu
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Haiying Mao
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Xian Lin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Kun Huang
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
| | - Lianzhong Zhao
- College of Life Sciences and Oceanography, Shenzhen University, Shenzhen, China
| | - Meilin Jin
- State Key Laboratory of Agricultural Microbiology, Huazhong Agricultural University, Wuhan, China
- College of Animal Medicine, Huazhong Agricultural University, Wuhan, China
- China Key Laboratory of Development of Veterinary Diagnostic Products, Ministry of Agriculture, Wuhan, China
- The Cooperative Innovation Center for Sustainable Pig Production, Wuhan, China
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28
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Smith JR, Dowling JW, McFadden MI, Karp A, Schwerk J, Woodward JJ, Savan R, Forero A. MEF2A suppresses stress responses that trigger DDX41-dependent IFN production. Cell Rep 2023; 42:112805. [PMID: 37467105 PMCID: PMC10652867 DOI: 10.1016/j.celrep.2023.112805] [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: 09/03/2022] [Revised: 05/17/2023] [Accepted: 06/27/2023] [Indexed: 07/21/2023] Open
Abstract
Cellular stress in the form of disrupted transcription, loss of organelle integrity, or damage to nucleic acids can elicit inflammatory responses by activating signaling cascades canonically tasked with controlling pathogen infections. These stressors must be kept in check to prevent unscheduled activation of interferon, which contributes to autoinflammation. This study examines the role of the transcription factor myocyte enhancing factor 2A (MEF2A) in setting the threshold of transcriptional stress responses to prevent R-loop accumulation. Increases in R-loops lead to the induction of interferon and inflammatory responses in a DEAD-box helicase 41 (DDX41)-, cyclic GMP-AMP synthase (cGAS)-, and stimulator of interferon genes (STING)-dependent manner. The loss of MEF2A results in the activation of ATM and RAD3-related (ATR) kinase, which is also necessary for the activation of STING. This study identifies the role of MEF2A in sustaining transcriptional homeostasis and highlights the role of ATR in positively regulating R-loop-associated inflammatory responses.
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Affiliation(s)
- Julian R Smith
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Jack W Dowling
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH 43210, USA
| | - Matthew I McFadden
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH 43210, USA; Biomedical Sciences Graduate Program, The Ohio State University, Columbus, OH 43210, USA
| | - Andrew Karp
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH 43210, USA; Discovery PREP, The Ohio State University, Columbus, OH 43210, USA
| | - Johannes Schwerk
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Joshua J Woodward
- Department of Microbiology, University of Washington, Seattle, WA 98109, USA
| | - Ram Savan
- Department of Immunology, University of Washington, Seattle, WA 98109, USA
| | - Adriana Forero
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, OH 43210, USA; Cancer Biology Program, Comprehensive Cancer Center, The Ohio State University, Columbus, OH 43210, USA; Infectious Diseases Institute, The Ohio State University, Columbus, OH 43210, USA.
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29
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Aloise C, Schipper JG, van Vliet A, Oymans J, Donselaar T, Hurdiss DL, de Groot RJ, van Kuppeveld FJM. SARS-CoV-2 nucleocapsid protein inhibits the PKR-mediated integrated stress response through RNA-binding domain N2b. PLoS Pathog 2023; 19:e1011582. [PMID: 37607209 PMCID: PMC10473545 DOI: 10.1371/journal.ppat.1011582] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 09/01/2023] [Accepted: 07/27/2023] [Indexed: 08/24/2023] Open
Abstract
The nucleocapsid protein N of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) enwraps and condenses the viral genome for packaging but is also an antagonist of the innate antiviral defense. It suppresses the integrated stress response (ISR), purportedly by interacting with stress granule (SG) assembly factors G3BP1 and 2, and inhibits type I interferon responses. To elucidate its mode of action, we systematically deleted and over-expressed distinct regions and domains. We show that N via domain N2b blocks PKR-mediated ISR activation, as measured by suppression of ISR-induced translational arrest and SG formation. N2b mutations that prevent dsRNA binding abrogate these activities also when introduced in the intact N protein. Substitutions reported to block post-translation modifications of N or its interaction with G3BP1/2 did not have a detectable additive effect. In an encephalomyocarditis virus-based infection model, N2b - but not a derivative defective in RNA binding-prevented PKR activation, inhibited β-interferon expression and promoted virus replication. Apparently, SARS-CoV-2 N inhibits innate immunity by sequestering dsRNA to prevent activation of PKR and RIG-I-like receptors. Similar observations were made for the N protein of human coronavirus 229E, suggesting that this may be a general trait conserved among members of other orthocoronavirus (sub)genera.
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Affiliation(s)
- Chiara Aloise
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Jelle G. Schipper
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Arno van Vliet
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Judith Oymans
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Tim Donselaar
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Daniel L. Hurdiss
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Raoul J. de Groot
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
| | - Frank J. M. van Kuppeveld
- Virology Section, Division of Infectious Diseases and Immunology, Department of Biomolecular Health Sciences, Faculty of Veterinary Medicine, Utrecht University, Utrecht, the Netherlands
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30
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Smailys J, Jiang F, Prioleau T, Kelley K, Mitchell O, Nour S, Ali L, Buchser W, Zavada L, Hinton SD. The DUSP domain of pseudophosphatase MK-STYX interacts with G3BP1 to decrease stress granules. Arch Biochem Biophys 2023; 744:109702. [PMID: 37516290 PMCID: PMC10500436 DOI: 10.1016/j.abb.2023.109702] [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: 07/08/2023] [Revised: 07/16/2023] [Accepted: 07/25/2023] [Indexed: 07/31/2023]
Abstract
Mitogen activated protein kinase phosphoserine/threonine/tyrosine-binding protein (MK-STYX) is a dual specificity (DUSP) member of the protein tyrosine phosphatase family. It is a pseudophosphatase, which lacks the essential amino acids histidine and cysteine in the catalytic active signature motif (HCX5R). We previously reported that MK-STYX interacts with G3BP1 [Ras-GAP (GTPase-activating protein) SH3 (Src homology 3) domain-binding-1] and reduces stress granules, stalled mRNA. To determine how MK-STYX reduces stress granules, truncated domains, CH2 (cell division cycle 25 phosphatase homology 2) and DUSP, of MK-STYX were used. Wild-type MK-STYX and the DUSP domain significantly decreased stressed granules that were induced by sodium arsenite, in which G3BP1 (a stress granule nucleator) was used as the marker. In addition, HEK/293 and HeLa cells co-expressing G3BP1-GFP and mCherry-MK-STYX, mCherry-MK-STYX-CH2, mCherry-MK-STYX-DUSP or mCherry showed that stress granules were significantly decreased in the presence of wild-type MK-STYX and the DUSP domain of MK-STYX. Further characterization of these dynamics in HeLa cells showed that the CH2 domain increased the number of stress granules within a cell, relative to wild-type and DUSP domain of MK-STYX. To further analyze the interaction of G3BP1 and the domains of MK-STYX, coimmunoprecipitation experiments were performed. Cells co-expressing G3BP1-GFP and mCherry, mCherry-MK-STYX, mCherry-MK-STYX-CH2, or mCherry-MK-STYX-DUSP demonstrated that the DUSP domain of MK-STYX interacts with both G3BP1-GFP and endogenous G3BP1, whereas the CH2 domain of MK-STYX did not coimmunoprecipitate with G3BP1. In addition, G3BP1 tyrosine phosphorylation, which is required for stress granule formation, was decreased in the presence of wild-type MK-STYX or the DUSP domain but increased in the presence of CH2. These data highlight a model for how MK-STYX decreases G3BP1-induced stress granules. The DUSP domain of MK-STYX interacts with G3BP1 and negatively alters its tyrosine phosphorylation- decreasing stress granule formation.
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Affiliation(s)
- Jonathan Smailys
- Department of Biology, Integrated Science Center, William and Mary, Williamsburg, VA, 23185, USA
| | - Fei Jiang
- Department of Biology, Integrated Science Center, William and Mary, Williamsburg, VA, 23185, USA
| | - Tatiana Prioleau
- Department of Biology, Integrated Science Center, William and Mary, Williamsburg, VA, 23185, USA
| | - Kylan Kelley
- Department of Biology, Integrated Science Center, William and Mary, Williamsburg, VA, 23185, USA; Department of Genetics, Washington University, St. Louis, MO, 63110, USA
| | - Olivia Mitchell
- Department of Biology, Hampton University, Hampton, VA, 23666, USA
| | - Samah Nour
- Department of Genetics, Washington University, St. Louis, MO, 63110, USA
| | - Lina Ali
- Department of Genetics, Washington University, St. Louis, MO, 63110, USA
| | - William Buchser
- Department of Genetics, Washington University, St. Louis, MO, 63110, USA
| | - Lynn Zavada
- Department of Biology, Integrated Science Center, William and Mary, Williamsburg, VA, 23185, USA
| | - Shantá D Hinton
- Department of Biology, Integrated Science Center, William and Mary, Williamsburg, VA, 23185, USA.
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31
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Bagyinszky E, Hulme J, An SSA. Studies of Genetic and Proteomic Risk Factors of Amyotrophic Lateral Sclerosis Inspire Biomarker Development and Gene Therapy. Cells 2023; 12:1948. [PMID: 37566027 PMCID: PMC10417729 DOI: 10.3390/cells12151948] [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: 06/21/2023] [Revised: 07/21/2023] [Accepted: 07/25/2023] [Indexed: 08/12/2023] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is an incurable neurodegenerative disease affecting the upper and lower motor neurons, leading to muscle weakness, motor impairments, disabilities and death. Approximately 5-10% of ALS cases are associated with positive family history (familial ALS or fALS), whilst the remainder are sporadic (sporadic ALS, sALS). At least 50 genes have been identified as causative or risk factors for ALS. Established pathogenic variants include superoxide dismutase type 1 (SOD1), chromosome 9 open reading frame 72 (c9orf72), TAR DNA Binding Protein (TARDBP), and Fused In Sarcoma (FUS); additional ALS-related genes including Charged Multivesicular Body Protein 2B (CHMP2B), Senataxin (SETX), Sequestosome 1 (SQSTM1), TANK Binding Kinase 1 (TBK1) and NIMA Related Kinase 1 (NEK1), have been identified. Mutations in these genes could impair different mechanisms, including vesicle transport, autophagy, and cytoskeletal or mitochondrial functions. So far, there is no effective therapy against ALS. Thus, early diagnosis and disease risk predictions remain one of the best options against ALS symptomologies. Proteomic biomarkers, microRNAs, and extracellular vehicles (EVs) serve as promising tools for disease diagnosis or progression assessment. These markers are relatively easy to obtain from blood or cerebrospinal fluids and can be used to identify potential genetic causative and risk factors even in the preclinical stage before symptoms appear. In addition, antisense oligonucleotides and RNA gene therapies have successfully been employed against other diseases, such as childhood-onset spinal muscular atrophy (SMA), which could also give hope to ALS patients. Therefore, an effective gene and biomarker panel should be generated for potentially "at risk" individuals to provide timely interventions and better treatment outcomes for ALS patients as soon as possible.
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Affiliation(s)
- Eva Bagyinszky
- Graduate School of Environment Department of Industrial and Environmental Engineering, Gachon University, Seongnam-si 13120, Republic of Korea;
| | - John Hulme
- Graduate School of Environment Department of Industrial and Environmental Engineering, Gachon University, Seongnam-si 13120, Republic of Korea;
| | - Seong Soo A. An
- Department of Bionano Technology, Gachon University, Seongnam-si 13120, Republic of Korea
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Schiffmann S, Henke M, Seifert M, Ulshöfer T, Roser LA, Magari F, Wendel HG, Grünweller A, Parnham MJ. Comparing the Effects of Rocaglates on Energy Metabolism and Immune Modulation on Cells of the Human Immune System. Int J Mol Sci 2023; 24:ijms24065872. [PMID: 36982945 PMCID: PMC10051175 DOI: 10.3390/ijms24065872] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/02/2023] [Accepted: 03/13/2023] [Indexed: 03/22/2023] Open
Abstract
A promising new approach to broad spectrum antiviral drugs is the inhibition of the eukaryotic translation initiation factor 4A (elF4A), a DEAD-box RNA helicase that effectively reduces the replication of several pathogenic virus types. Beside the antipathogenic effect, modulation of a host enzyme activity could also have an impact on the immune system. Therefore, we performed a comprehensive study on the influence of elF4A inhibition with natural and synthetic rocaglates on various immune cells. The effect of the rocaglates zotatifin, silvestrol and CR-31-B (−), as well as the nonactive enantiomer CR-31-B (+), on the expression of surface markers, release of cytokines, proliferation, inflammatory mediators and metabolic activity in primary human monocyte-derived macrophages (MdMs), monocyte-derived dendritic cells (MdDCs), T cells and B cells was assessed. The inhibition of elF4A reduced the inflammatory potential and energy metabolism of M1 MdMs, whereas in M2 MdMs, drug-specific and less target-specific effects were observed. Rocaglate treatment also reduced the inflammatory potential of activated MdDCs by altering cytokine release. In T cells, the inhibition of elF4A impaired their activation by reducing the proliferation rate, expression of CD25 and cytokine release. The inhibition of elF4A further reduced B-cell proliferation, plasma cell formation and the release of immune globulins. In conclusion, the inhibition of the elF4A RNA helicase with rocaglates suppressed the function of M1 MdMs, MdDCs, T cells and B cells. This suggests that rocaglates, while inhibiting viral replication, may also suppress bystander tissue injury by the host immune system. Thus, dosing of rocaglates would need to be adjusted to prevent excessive immune suppression without reducing their antiviral activity.
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Affiliation(s)
- Susanne Schiffmann
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
- Pharmazentrum Frankfurt/ZAFES, Institute of Clinical Pharmacology, Goethe-University Hospital Frankfurt am Main, Theodor-Stern-Kai 7, 60590 Frankfurt am Main, Germany
- Correspondence:
| | - Marina Henke
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Michelle Seifert
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Thomas Ulshöfer
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Luise A. Roser
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
| | - Francesca Magari
- Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35032 Marburg, Germany
| | - Hans-Guido Wendel
- Cancer Biology and Genetics Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Arnold Grünweller
- Institute of Pharmaceutical Chemistry, Philipps-University Marburg, Marbacher Weg 6, 35032 Marburg, Germany
| | - Michael J. Parnham
- Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Theodor-Stern-Kai 7, 60596 Frankfurt am Main, Germany
- EpiEndo Pharmaceuticals ehf, Bjargargata 1, 102 Reykjavik, Iceland
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Ramnani B, Powell S, Shetty AG, Manivannan P, Hibbard BR, Leaman DW, Malathi K. Viral Hemorrhagic Septicemia Virus Activates Integrated Stress Response Pathway and Induces Stress Granules to Regulate Virus Replication. Viruses 2023; 15:466. [PMID: 36851680 PMCID: PMC9965902 DOI: 10.3390/v15020466] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 01/30/2023] [Indexed: 02/10/2023] Open
Abstract
Virus infection activates integrated stress response (ISR) and stress granule (SG) formation and viruses counteract by interfering with SG assembly, suggesting an important role in antiviral defense. The infection of fish cells by Viral Hemorrhagic Septicemia Virus (VHSV), activates the innate immune recognition pathway and the production of type I interferon (IFN). However, the mechanisms by which VHSV interacts with ISR pathway regulating SG formation is poorly understood. Here, we demonstrate that fish cells respond to heat shock, oxidative stress and VHSV infection by forming SG that localized key SG marker, Ras GTPase-activating protein (SH3 domain)-binding protein 1 (G3BP1). We show that PKR-like endoplasmic reticulum kinase (PERK), but not (dsRNA)-dependent protein kinase (PKR), is required for VHSV-induced SG formation. Furthermore, in VHSV Ia infected cells, PERK activity is required for IFN production, antiviral signaling and viral replication. SG formation required active virus replication as individual VHSV Ia proteins or inactive virus did not induce SG. Cells lacking G3BP1 produced increased IFN, antiviral genes and viral mRNA, however viral protein synthesis and viral titers were reduced. We show a critical role of the activation of ISR pathway and SG formation highlighting a novel role of G3BP1 in regulating VHSV protein translation and replication.
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Affiliation(s)
- Barkha Ramnani
- Department of Biological Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, OH 43606, USA
| | - Shelby Powell
- Department of Biological Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, OH 43606, USA
| | - Adarsh G. Shetty
- Department of Biological Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, OH 43606, USA
| | - Praveen Manivannan
- Department of Biological Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, OH 43606, USA
| | - Brian R. Hibbard
- Department of Biological Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, OH 43606, USA
| | - Douglas W. Leaman
- College of Sciences, Auburn University at Montgomery, 7400 East Dr., Montgomery, AL 36117, USA
| | - Krishnamurthy Malathi
- Department of Biological Sciences, University of Toledo, 2801 West Bancroft Street, Toledo, OH 43606, USA
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Vadla GP, Ricardez Hernandez SM, Mao J, Garro-Kacher MO, Lorson ZC, Rice RP, Hansen SA, Lorson CL, Singh K, Lorson MA. ABT1 modifies SMARD1 pathology via interactions with IGHMBP2 and stimulation of ATPase and helicase activity. JCI Insight 2023; 8:e164608. [PMID: 36480289 PMCID: PMC9977310 DOI: 10.1172/jci.insight.164608] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 12/07/2022] [Indexed: 12/13/2022] Open
Abstract
SMA with respiratory distress type 1 (SMARD1) and Charcot-Marie-Tooth type 2S (CMT2S) are results of mutations in immunoglobulin mu DNA binding protein 2 (IGHMBP2). IGHMBP2 is a UPF1-like helicase with proposed roles in several cellular processes, including translation. This study examines activator of basal transcription 1 (ABT1), a modifier of SMARD1-nmd disease pathology. Microscale thermophoresis and dynamic light scattering demonstrate that IGHMBP2 and ABT1 proteins directly interact with high affinity. The association of ABT1 with IGHMBP2 significantly increases the ATPase and helicase activity as well as the processivity of IGHMBP2. The IGHMBP2/ABT1 complex interacts with the 47S pre-rRNA 5' external transcribed spacer and U3 small nucleolar RNA (snoRNA), suggesting that the IGHMBP2/ABT1 complex is important for pre-rRNA processing. Intracerebroventricular injection of scAAV9-Abt1 decreases FVB-Ighmbp2nmd/nmd disease pathology, significantly increases lifespan, and substantially decreases neuromuscular junction denervation. To our knowledge, ABT1 is the first disease-modifying gene identified for SMARD1. We provide a mechanism proposing that ABT1 decreases disease pathology in FVB-Ighmbp2nmd/nmd mutants by optimizing IGHMBP2 biochemical activity (ATPase and helicase activity). Our studies provide insight into SMARD1 pathogenesis, suggesting that ABT1 modifies IGHMBP2 activity as a means to regulate pre-rRNA processing.
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Affiliation(s)
- Gangadhar P. Vadla
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Sara M. Ricardez Hernandez
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Jiude Mao
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Mona O. Garro-Kacher
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Zachary C. Lorson
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Ronin P. Rice
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Sarah A. Hansen
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Christian L. Lorson
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Kamal Singh
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
| | - Monique A. Lorson
- Department of Veterinary Pathobiology, College of Veterinary Medicine, and
- Bond Life Sciences Center, University of Missouri, Columbia, Missouri, USA
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Krchlíková V, Hron T, Těšický M, Li T, Ungrová L, Hejnar J, Vinkler M, Elleder D. Dynamic Evolution of Avian RNA Virus Sensors: Repeated Loss of RIG-I and RIPLET. Viruses 2022; 15:3. [PMID: 36680044 PMCID: PMC9861763 DOI: 10.3390/v15010003] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
Retinoic acid-inducible gene I (RIG-I) and melanoma differentiation-associated protein 5 (MDA5) are key RNA virus sensors belonging to the RIG-I-like receptor (RLR) family. The activation of the RLR inflammasome leads to the establishment of antiviral state, mainly through interferon-mediated signaling. The evolutionary dynamics of RLRs has been studied mainly in mammals, where rare cases of RLR gene losses were described. By in silico screening of avian genomes, we previously described two independent disruptions of MDA5 in two bird orders. Here, we extend this analysis to approximately 150 avian genomes and report 16 independent evolutionary events of RIG-I inactivation. Interestingly, in almost all cases, these inactivations are coupled with genetic disruptions of RIPLET/RNF135, an ubiquitin ligase RIG-I regulator. Complete absence of any detectable RIG-I sequences is unique to several galliform species, including the domestic chicken (Gallus gallus). We further aimed to determine compensatory evolution of MDA5 in RIG-I-deficient species. While we were unable to show any specific global pattern of adaptive evolution in RIG-I-deficient species, in galliforms, the analyses of positive selection and surface charge distribution support the hypothesis of some compensatory evolution in MDA5 after RIG-I loss. This work highlights the dynamic nature of evolution in bird RNA virus sensors.
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Affiliation(s)
- Veronika Krchlíková
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Tomáš Hron
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Martin Těšický
- Department of Zoology, Faculty of Science, Charles University, 12843 Prague, Czech Republic
| | - Tao Li
- Department of Zoology, Faculty of Science, Charles University, 12843 Prague, Czech Republic
| | - Lenka Ungrová
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Jiří Hejnar
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic
| | - Michal Vinkler
- Department of Zoology, Faculty of Science, Charles University, 12843 Prague, Czech Republic
| | - Daniel Elleder
- Institute of Molecular Genetics of the Czech Academy of Sciences, 14220 Prague, Czech Republic
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36
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Zhong A, Gao T. Transcriptome analysis reveals similarities and differences in immune responses in the head and trunk kidneys of yellow catfish (Pelteobagrus fulvidraco) stimulated with Aeromonas hydrophila. Fish Shellfish Immunol 2022; 130:155-163. [PMID: 36055554 DOI: 10.1016/j.fsi.2022.08.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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: 03/23/2022] [Revised: 07/19/2022] [Accepted: 08/15/2022] [Indexed: 06/15/2023]
Abstract
Teleosts have a unique immune system because their head kidney (HK) and trunk kidney (TK) are sites for hematopoiesis. However, the immune functions of the HK and TKs require further elucidation in yellow catfish (Pelteobagrus fulvidraco). In the present study, imprints of the HK and TK were examined using the Wright's-Giemsa staining method. Morphological characteristics of the blood cell lineages revealed that the HK and TK were hematopoietic organs. To explore its immune function, transcriptome sequencing was performed after infection with Aeromonas hydrophila. A total of 1139 genes showed significant alterations in their expression in the kidney; these genes included 737 upregulated and 402 downregulated genes. Furthermore, 1117 differentially expressed genes were observed in the HK, which included 784 upregulated and 333 downregulated genes. Both organs showed 357 upregulated genes and 85 downregulated genes. Some immune-related genes were only expressed in the TK, such as ATP-dependent RNA helicase DDX58, the gene encoding the immunoglobulin heavy chain and light chain. The immune responses in the HK and TK were differential and the TK played a critical role in the mechanism underlying the immune response. The purpose of the present study was to facilitate the elucidation of the immune defense mechanism of yellow catfish and other teleosts.
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Affiliation(s)
- Aihua Zhong
- Aquaculture Department, College of Fishery, Zhejiang Ocean University, No.1, Haida South Road, Changzhi Island, Zhoushan, Zhejiang Province, 316022, China.
| | - Tianxiang Gao
- Aquaculture Department, College of Fishery, Zhejiang Ocean University, No.1, Haida South Road, Changzhi Island, Zhoushan, Zhejiang Province, 316022, China
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Acharya D, Reis R, Volcic M, Liu G, Wang MK, Chia BS, Nchioua R, Groß R, Münch J, Kirchhoff F, Sparrer KMJ, Gack MU. Actin cytoskeleton remodeling primes RIG-I-like receptor activation. Cell 2022; 185:3588-3602.e21. [PMID: 36113429 PMCID: PMC9680832 DOI: 10.1016/j.cell.2022.08.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [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: 01/22/2022] [Revised: 06/17/2022] [Accepted: 08/10/2022] [Indexed: 01/26/2023]
Abstract
The current dogma of RNA-mediated innate immunity is that sensing of immunostimulatory RNA ligands is sufficient for the activation of intracellular sensors and induction of interferon (IFN) responses. Here, we report that actin cytoskeleton disturbance primes RIG-I-like receptor (RLR) activation. Actin cytoskeleton rearrangement induced by virus infection or commonly used reagents to intracellularly deliver RNA triggers the relocalization of PPP1R12C, a regulatory subunit of the protein phosphatase-1 (PP1), from filamentous actin to cytoplasmic RLRs. This allows dephosphorylation-mediated RLR priming and, together with the RNA agonist, induces effective RLR downstream signaling. Genetic ablation of PPP1R12C impairs antiviral responses and enhances susceptibility to infection with several RNA viruses including SARS-CoV-2, influenza virus, picornavirus, and vesicular stomatitis virus. Our work identifies actin cytoskeleton disturbance as a priming signal for RLR-mediated innate immunity, which may open avenues for antiviral or adjuvant design.
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Affiliation(s)
- Dhiraj Acharya
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA; Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - Rebecca Reis
- Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - Meta Volcic
- Institute of Molecular Virology, Ulm University Medical Center, 89081 Ulm, Germany
| | - GuanQun Liu
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA; Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA
| | - May K Wang
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Bing Shao Chia
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, MA 02115, USA
| | - Rayhane Nchioua
- Institute of Molecular Virology, Ulm University Medical Center, 89081 Ulm, Germany
| | - Rüdiger Groß
- Institute of Molecular Virology, Ulm University Medical Center, 89081 Ulm, Germany
| | - Jan Münch
- Institute of Molecular Virology, Ulm University Medical Center, 89081 Ulm, Germany
| | - Frank Kirchhoff
- Institute of Molecular Virology, Ulm University Medical Center, 89081 Ulm, Germany
| | | | - Michaela U Gack
- Florida Research and Innovation Center, Cleveland Clinic, Port Saint Lucie, FL 34987, USA; Department of Microbiology, The University of Chicago, Chicago, IL 60637, USA.
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Neyret A, Bernard E, Aïqui-Reboul-Paviet O, Bakhache W, Eldin P, Chaloin L, Briant L. Identification of a non-canonical G3BP-binding sequence in a Mayaro virus nsP3 hypervariable domain. Front Cell Infect Microbiol 2022; 12:958176. [PMID: 36034716 PMCID: PMC9403187 DOI: 10.3389/fcimb.2022.958176] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Accepted: 07/18/2022] [Indexed: 11/17/2022] Open
Abstract
Ras-GTPase-activating SH3 domain-binding-proteins 1 (G3BP1) and 2 (G3BP2) are multifunctional RNA-binding proteins involved in stress granule nucleation, previously identified as essential cofactors of Old World alphaviruses. They are recruited to viral replication complexes formed by the Chikungunya virus (CHIKV), Semliki Forest virus (SFV), and Sindbis virus (SINV) via an interaction with a duplicated FGxF motif conserved in the hypervariable domain (HVD) of virus-encoded nsP3. According to mutagenesis studies, this FGxF duplication is strictly required for G3BP binding and optimal viral growth. Contrasting with this scenario, nsP3 encoded by Mayaro virus (MAYV), an arthritogenic virus grouped with Old World alphaviruses, contains a single canonical FGxF sequence. In light of this unusual feature, we questioned MAYV nsP3/G3BPs relationships. We report that G3BP1 and G3BP2 are both required for MAYV growth in human cells and bind nsP3 protein. In infected cells, they are recruited to nsP3-containing cytosolic foci and active replication complexes. Unexpectedly, deletion of the single FGxF sequence in MAYV nsP3 did not abolish these phenotypes. Using mutagenesis and in silico modeling, we identify an upstream FGAP amino acid sequence as an additional MAYV nsP3/G3BP interaction motif required for optimal viral infectivity. These results, therefore, highlight a non-conventional G3BP binding sequence in MAYV nsP3.
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Haikerwal A, Barrera MD, Bhalla N, Zhou W, Boghdeh N, Anderson C, Alem F, Narayanan A. Inhibition of Venezuelan Equine Encephalitis Virus Using Small Interfering RNAs. Viruses 2022; 14:v14081628. [PMID: 35893693 PMCID: PMC9331859 DOI: 10.3390/v14081628] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/20/2022] [Accepted: 07/22/2022] [Indexed: 12/10/2022] Open
Abstract
Acutely infectious new world alphaviruses such as Venezuelan Equine Encephalitis Virus (VEEV) pose important challenges to the human population due to a lack of effective therapeutic intervention strategies. Small interfering RNAs that can selectively target the viral genome (vsiRNAs) has been observed to offer survival advantages in several in vitro and in vivo models of acute virus infections, including alphaviruses such as Chikungunya virus and filoviruses such as Ebola virus. In this study, novel vsiRNAs that targeted conserved regions in the nonstructural and structural genes of the VEEV genome were designed and evaluated for antiviral activity in mammalian cells in the context of VEEV infection. The data demonstrate that vsiRNAs were able to effectively decrease the infectious virus titer at earlier time points post infection in the context of the attenuated TC-83 strain and the virulent Trinidad Donkey strain, while the inhibition was overcome at later time points. Depletion of Argonaute 2 protein (Ago2), the catalytic component of the RISC complex, negated the inhibitory effect of the vsiRNAs, underscoring the involvement of the siRNA pathway in the inhibition process. Depletion of the RNAi pathway proteins Dicer, MOV10, TRBP2 and Matrin 3 decreased viral load in infected cells, alluding to an impact of the RNAi pathway in the establishment of a productive infection. Additional studies focused on rational combinations of effective vsiRNAs and delivery strategies to confer better in vivo bioavailability and distribution to key target tissues such as the brain can provide effective solutions to treat encephalitic diseases resulting from alphavirus infections.
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Affiliation(s)
- Amrita Haikerwal
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
| | - Michael D. Barrera
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
| | - Nishank Bhalla
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
| | - Weidong Zhou
- Center for Applied Proteomics and Molecular Medicine, George Mason University, Manassas, VA 20110, USA;
| | - Niloufar Boghdeh
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
| | - Carol Anderson
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
| | - Farhang Alem
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
| | - Aarthi Narayanan
- Center for Infectious Disease Research, George Mason University, Manassas, VA 20110, USA; (A.H.); (M.D.B.); (N.B.); (N.B.); (C.A.); (F.A.)
- Correspondence:
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Sun M, Wu S, Kang S, Liao J, Zhang L, Xu Z, Chen H, Xu L, Zhang X, Qin Q, Wei J. Critical Roles of G3BP1 in Red-Spotted Grouper Nervous Necrosis Virus-Induced Stress Granule Formation and Viral Replication in Orange-Spotted Grouper (Epinephelus coioides). Front Immunol 2022; 13:931534. [PMID: 35935992 PMCID: PMC9354888 DOI: 10.3389/fimmu.2022.931534] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 06/22/2022] [Indexed: 11/13/2022] Open
Abstract
Viral infection causes changes in the internal environment of host cells, and a series of stress responses are generated to respond to these changes and help the cell survive. Stress granule (SG) formation is a type of cellular stress response that inhibits viral replication. However, the relationship between red-spotted grouper nervous necrosis virus (RGNNV) infection and SGs, and the roles of the SG marker protein RAS GTPase-activating protein (SH3 domain)-binding protein 1 (G3BP1) in viral infection remain unclear. In this study, RGNNV infection induced grouper spleen (GS) cells to produce SGs. The SGs particles co-located with the classic SG marker protein eIF3η, and some SGs depolymerized under treatment with the translation inhibitor, cycloheximide (CHX). In addition, when the four kinases of the eukaryotic translation initiation factor 2α (eIF2α)-dependent pathway were inhibited, knockdown of HRI and GCN2 with small interfering RNAs and inhibition of PKR with 2-aminopurine had little effect on the formation of SGs, but the PERK inhibitor significantly inhibited the formation of SGs and decreased the phosphorylation of eIF2α. G3BP1 of Epinephelus coioides (named as EcG3BP1) encodes 495 amino acids with a predicted molecular weight of 54.12 kDa and 65.9% homology with humans. Overexpression of EcG3BP1 inhibited the replication of RGNNV in vitro by up-regulating the interferon and inflammatory response, whereas knockdown of EcG3BP1 promoted the replication of RGNNV. These results provide a better understanding of the relationship between SGs and viral infection in fish.
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Affiliation(s)
- Mengshi Sun
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Siting Wu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Shaozhu Kang
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Jiaming Liao
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Luhao Zhang
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Zhuqing Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Hong Chen
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Linting Xu
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Xin Zhang
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
| | - Qiwei Qin
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
- *Correspondence: Jingguang Wei, ; Qiwei Qin,
| | - Jingguang Wei
- College of Marine Sciences, South China Agricultural University, Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou, China
- *Correspondence: Jingguang Wei, ; Qiwei Qin,
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Marnik EA, Almeida MV, Cipriani PG, Chung G, Caspani E, Karaulanov E, Gan HH, Zinno J, Isolehto IJ, Kielisch F, Butter F, Sharp CS, Flanagan RM, Bonnet FX, Piano F, Ketting RF, Gunsalus KC, Updike DL. The Caenorhabditis elegans TDRD5/7-like protein, LOTR-1, interacts with the helicase ZNFX-1 to balance epigenetic signals in the germline. PLoS Genet 2022; 18:e1010245. [PMID: 35657999 PMCID: PMC9200344 DOI: 10.1371/journal.pgen.1010245] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 06/15/2022] [Accepted: 05/09/2022] [Indexed: 11/24/2022] Open
Abstract
LOTUS and Tudor domain containing proteins have critical roles in the germline. Proteins that contain these domains, such as Tejas/Tapas in Drosophila, help localize the Vasa helicase to the germ granules and facilitate piRNA-mediated transposon silencing. The homologous proteins in mammals, TDRD5 and TDRD7, are required during spermiogenesis. Until now, proteins containing both LOTUS and Tudor domains in Caenorhabditis elegans have remained elusive. Here we describe LOTR-1 (D1081.7), which derives its name from its LOTUS and Tudor domains. Interestingly, LOTR-1 docks next to P granules to colocalize with the broadly conserved Z-granule helicase, ZNFX-1. The Tudor domain of LOTR-1 is required for its Z-granule retention. Like znfx-1 mutants, lotr-1 mutants lose small RNAs from the 3’ ends of WAGO and mutator targets, reminiscent of the loss of piRNAs from the 3’ ends of piRNA precursor transcripts in mouse Tdrd5 mutants. Our work shows that LOTR-1 acts with ZNFX-1 to bring small RNA amplifying mechanisms towards the 3’ ends of its RNA templates. Germ granules are protein and RNA complexes that are critical for maintaining an animal’s fertility. Central to the composition of germ granules are their small RNAs, which have the capacity to convey a memory of germline-licensed expression from one generation to the next. Here we describe and characterize a new germ-granule protein in C. elegans that we’ve named LOTR-1, after its LOTUS and Tudor domains. This combination of LOTUS and Tudor domains can be found in the mammalian proteins TDRD5 and TDRD7, which are required during spermatogenesis. During C. elegans embryogenesis, germ granules demix or partition into subgranules with refined functions. We show that LOTR-1 partitions with a specific class of subgranules called Z granules, interacting with a Z-granule helicase called ZNFX-1. Here, LOTR-1 functions with ZNFX-1 to position small RNA amplification from RNA templates, ensuring a memory of germline expression across generations. These findings may provide new insight into the function of TDRD5 and TDRD7 during human germline development.
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Affiliation(s)
- Elisabeth A. Marnik
- The MDI Biological Laboratory, Bar Harbor, Maine, United States of America
- Husson University, Bangor, Maine, United States of America
| | - Miguel V. Almeida
- Institute of Molecular Biology, Mainz, Germany
- International PhD Programme on Gene Regulation, Epigenetics & Genome Stability, Mainz, Germany
| | - P. Giselle Cipriani
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
- Center for Genomics & Systems Biology, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - George Chung
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
| | - Edoardo Caspani
- Institute of Molecular Biology, Mainz, Germany
- International PhD Programme on Gene Regulation, Epigenetics & Genome Stability, Mainz, Germany
| | | | - Hin Hark Gan
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
| | - John Zinno
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
| | - Ida J. Isolehto
- Institute of Molecular Biology, Mainz, Germany
- International PhD Programme on Gene Regulation, Epigenetics & Genome Stability, Mainz, Germany
| | | | - Falk Butter
- Institute of Molecular Biology, Mainz, Germany
| | - Catherine S. Sharp
- The MDI Biological Laboratory, Bar Harbor, Maine, United States of America
| | - Roisin M. Flanagan
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
| | - Frederic X. Bonnet
- The MDI Biological Laboratory, Bar Harbor, Maine, United States of America
| | - Fabio Piano
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
- Center for Genomics & Systems Biology, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
| | - René F. Ketting
- Institute of Molecular Biology, Mainz, Germany
- * E-mail: (RFK); (KCG); (DLU)
| | - Kristin C. Gunsalus
- Center for Genomics & Systems Biology, New York University, New York, New York, United States of America
- Center for Genomics & Systems Biology, New York University Abu Dhabi, Abu Dhabi, United Arab Emirates
- * E-mail: (RFK); (KCG); (DLU)
| | - Dustin L. Updike
- The MDI Biological Laboratory, Bar Harbor, Maine, United States of America
- * E-mail: (RFK); (KCG); (DLU)
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Sui S, Wang Z, Cui X, Jin L, Zhu C. The biological behavior of tRNA-derived fragment tRF-Leu-AAG in pancreatic cancer cells. Bioengineered 2022; 13:10617-10628. [PMID: 35442152 PMCID: PMC9161985 DOI: 10.1080/21655979.2022.2064206] [Citation(s) in RCA: 2] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/29/2022] [Accepted: 04/05/2022] [Indexed: 01/01/2023] Open
Abstract
Pancreatic cancer (PC) is a life-threatening cancer with increasing incidence in developed countries. Reports indicate that tRNA-derived fragments (tRFs) are possible therapeutic targets and biomarkers for cancer treatment. Nonetheless, the effect of tRF-Leu-AAG on PC is unclear. This study aims to explore the role of tRF-Leu-AAG and upstream frameshift mutant 1 (UPF1) in the development of PC and its potential underlying mechanisms. High-throughput second-generation sequencing techniques were used to detect the expression of tRFs in cancerous and adjacent normal tissues from PC patients. The role of tRF-Leu-AAG proliferation in PC cells was investigated via the Cell Counting Kit-8 (CCK8) assay. The effect of tRF-Leu-AAG on the invasion and migration ability of PC cells was also determined by the transwell assay. Thereafter, the downstream target genes of tRF-Leu-AAG were comprehensively predicted using bioinformatics analysis databases. We also used the Dual-Luciferase Reporter assay to assess the nexus between tRF-Leu-AAG and UPF1. Eventually, Western Blot was used to validate the expression of UPF1 in PC cells. A total of 33 tRF expressions significantly varied from PC patients. RT-qPCR confirmed that the expression of tRF-Leu-AAG was observably up-regulated in PC cells as compared to the control cells. Importantly, knockdown of tRF-Leu-AAG observably inhibited cell proliferation, migration, and invasion. Furthermore, according to the predicted frameshift database results, the UPF1 acted as downstream target genes for tRF-Leu-AAG and significantly down-regulated UPF1 expression.
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Affiliation(s)
- Shizhen Sui
- Graduate School of Dalian Medical University, Dalian Medical University, Dalian, Liaoning, China
| | - Zhihuai Wang
- Graduate School of Dalian Medical University, Dalian Medical University, Dalian, Liaoning, China
| | - Xiaohan Cui
- Department of Hepatobiliary Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Lei Jin
- Department of Hepatobiliary Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
| | - Chunfu Zhu
- Department of Hepatobiliary Surgery, The Affiliated Changzhou No. 2 People’s Hospital of Nanjing Medical University, Changzhou, Jiangsu, China
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Gantier MP. Powering on cGAMP mini factories. EMBO Rep 2022; 23:e54231. [PMID: 34796613 PMCID: PMC8728596 DOI: 10.15252/embr.202154231] [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: 10/27/2021] [Accepted: 11/03/2021] [Indexed: 01/07/2023] Open
Abstract
Cyclic GMP-AMP (cGAMP) synthase (cGAS) is an essential innate immune sensor. Remarkably, in addition to its role in the early detection of pathogenic DNA molecules, cGAS also monitors cellular health through the sensing of nuclear and mitochondrial DNA aberrantly localised to the cell cytoplasm. This central position of cGAS requires tight molecular controls which are only starting to be understood. In this issue of EMBO Reports, Zhao and colleagues (Zhao et al, 2021) describe a novel mechanism switching on DNA sensing, relying on the formation of primary condensates of cGAS and GTPase-activating protein-(SH3 domain)-binding protein 1 (G3BP1).
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Affiliation(s)
- Michael P Gantier
- Centre for Innate Immunity and Infectious DiseasesHudson Institute of Medical ResearchClaytonVic.Australia
- Department of Molecular and Translational ScienceMonash UniversityClaytonVic.Australia
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Ghieh F, Barbotin AL, Swierkowski-Blanchard N, Leroy C, Fortemps J, Gerault C, Hue C, Mambu Mambueni H, Jaillard S, Albert M, Bailly M, Izard V, Molina-Gomes D, Marcelli F, Prasivoravong J, Serazin V, Dieudonne MN, Delcroix M, Garchon HJ, Louboutin A, Mandon-Pepin B, Ferlicot S, Vialard F. OUP accepted manuscript. Hum Reprod 2022; 37:1334-1350. [PMID: 35413094 PMCID: PMC9156845 DOI: 10.1093/humrep/deac057] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Revised: 03/07/2022] [Indexed: 11/13/2022] Open
Affiliation(s)
- F Ghieh
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- École Nationale Vétérinaire d’Alfort, BREED, Maisons-Alfort, France
| | - A L Barbotin
- Institut de Biologie de la Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, Centre Hospitalier et Universitaire, Lille, France
| | - N Swierkowski-Blanchard
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- École Nationale Vétérinaire d’Alfort, BREED, Maisons-Alfort, France
- Département de Gynécologie Obstétrique, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - C Leroy
- Institut de Biologie de la Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, Centre Hospitalier et Universitaire, Lille, France
| | - J Fortemps
- Service d’Anatomie Pathologique, CHI de Poissy/Saint-Germain-en-Laye, Saint-Germain-en-Laye, France
| | - C Gerault
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - C Hue
- Department of Biotechnology and Health, UVSQ, Université Paris-Saclay, Inserm UMR 1173, Montigny-le-Bretonneux, France
| | - H Mambu Mambueni
- Department of Biotechnology and Health, UVSQ, Université Paris-Saclay, Inserm UMR 1173, Montigny-le-Bretonneux, France
| | - S Jaillard
- Service de Cytogénétique, CHU Rennes, Rennes, France
- INSERM, EHESP, IRSET—UMR_S 1085, Université Rennes 1, Rennes, France
| | - M Albert
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- École Nationale Vétérinaire d’Alfort, BREED, Maisons-Alfort, France
| | - M Bailly
- Département de Gynécologie Obstétrique, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - V Izard
- Service d’Urologie, AP-HP, Université Paris-Saclay, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | - D Molina-Gomes
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - F Marcelli
- Institut de Biologie de la Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, Centre Hospitalier et Universitaire, Lille, France
| | - J Prasivoravong
- Institut de Biologie de la Reproduction-Spermiologie-CECOS, Hôpital Jeanne de Flandre, Centre Hospitalier et Universitaire, Lille, France
| | - V Serazin
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- École Nationale Vétérinaire d’Alfort, BREED, Maisons-Alfort, France
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - M N Dieudonne
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- École Nationale Vétérinaire d’Alfort, BREED, Maisons-Alfort, France
| | - M Delcroix
- Département de Génétique, Laboratoire de Biologie Médicale, CHI de Poissy/Saint-Germain-en-Laye, Poissy, France
| | - H J Garchon
- Department of Biotechnology and Health, UVSQ, Université Paris-Saclay, Inserm UMR 1173, Montigny-le-Bretonneux, France
| | - A Louboutin
- Service d’Anatomie Pathologique, CHI de Poissy/Saint-Germain-en-Laye, Saint-Germain-en-Laye, France
| | - B Mandon-Pepin
- Université Paris-Saclay, UVSQ, INRAE, BREED, Jouy-en-Josas, France
- École Nationale Vétérinaire d’Alfort, BREED, Maisons-Alfort, France
| | - S Ferlicot
- Service d’Anatomie Pathologique, AP-HP, Université Paris-Saclay, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | - F Vialard
- Correspondence address. Tel: +33-139-274-700; E-mail:
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Altman T, Ionescu A, Ibraheem A, Priesmann D, Gradus-Pery T, Farberov L, Alexandra G, Shelestovich N, Dafinca R, Shomron N, Rage F, Talbot K, Ward ME, Dori A, Krüger M, Perlson E. Axonal TDP-43 condensates drive neuromuscular junction disruption through inhibition of local synthesis of nuclear encoded mitochondrial proteins. Nat Commun 2021; 12:6914. [PMID: 34824257 PMCID: PMC8617040 DOI: 10.1038/s41467-021-27221-8] [Citation(s) in RCA: 58] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 11/08/2021] [Indexed: 01/02/2023] Open
Abstract
Mislocalization of the predominantly nuclear RNA/DNA binding protein, TDP-43, occurs in motor neurons of ~95% of amyotrophic lateral sclerosis (ALS) patients, but the contribution of axonal TDP-43 to this neurodegenerative disease is unclear. Here, we show TDP-43 accumulation in intra-muscular nerves from ALS patients and in axons of human iPSC-derived motor neurons of ALS patient, as well as in motor neurons and neuromuscular junctions (NMJs) of a TDP-43 mislocalization mouse model. In axons, TDP-43 is hyper-phosphorylated and promotes G3BP1-positive ribonucleoprotein (RNP) condensate assembly, consequently inhibiting local protein synthesis in distal axons and NMJs. Specifically, the axonal and synaptic levels of nuclear-encoded mitochondrial proteins are reduced. Clearance of axonal TDP-43 or dissociation of G3BP1 condensates restored local translation and resolved TDP-43-derived toxicity in both axons and NMJs. These findings support an axonal gain of function of TDP-43 in ALS, which can be targeted for therapeutic development.
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Affiliation(s)
- Topaz Altman
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Ariel Ionescu
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Amjad Ibraheem
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Dominik Priesmann
- CECAD Research Center and Center for Molecular Medicine (CMMC), University of Cologne, 50931, Cologne, Germany
| | - Tal Gradus-Pery
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Luba Farberov
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Gayster Alexandra
- Pathology Institute, Sheba Medical Center, Tel Hashomer, Ramat Gan, Israel
| | | | - Ruxandra Dafinca
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Noam Shomron
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel
| | - Florence Rage
- Institut de Génétique Moléculaire de Montpellier, IGMM UMR535, Montpellier, France
| | - Kevin Talbot
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, UK
| | - Michael E Ward
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Amir Dori
- Department of Neurology, Sheba Medical Center, Tel Hashomer and Sackler Faculty of Medicine, Tel Aviv University, Ramat Gan, Israel
| | - Marcus Krüger
- CECAD Research Center and Center for Molecular Medicine (CMMC), University of Cologne, 50931, Cologne, Germany
| | - Eran Perlson
- Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel.
- Sagol School of Neuroscience, Tel-Aviv University, Tel-Aviv, Israel.
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Perroud PF, Demko V, Ako AE, Khanal R, Bokor B, Pavlovič A, Jásik J, Johansen W. The nuclear GUCT domain-containing DEAD-box RNA helicases govern gametophytic and sporophytic development in Physcomitrium patens. Plant Mol Biol 2021; 107:307-325. [PMID: 33886069 PMCID: PMC8648619 DOI: 10.1007/s11103-021-01152-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 04/06/2021] [Indexed: 05/29/2023]
Abstract
KEY MESSAGE In Physcomitrium patens, PpRH1/PpRH2 are GUCT-domain-containing DEAD-BOX RNA helicases localize to the nucleus. They are implicated in cell and tissue development in all stages of the moss life cycle. ABSTRACT The DEAD-box-containing RNA helicase family encompasses a large and functionally important group of enzymes involved in cellular processes committed to the metabolism of RNA, including its transcription, processing, transport, translation and decay. Studies indicate this protein family has implied roles in plant vegetative and reproductive developmental processes as well as response to environmental stresses such has cold and high salinity. We focus here on a small conserved sub-group of GUCT domain-containing RNA helicase in the moss Physcomitrium patens. Phylogenetic analysis shows that RNA helicases containing the GUCT domain form a distinct conserved clade across the green lineage. In this clade, the P. patens genome possesses two closely related paralogues RNA helicases predicted to be nuclear, PpRH1 and PpRH2. Using in-locus gene fluorescent tagging we show that PpRH1 is localized to the nucleus in protonema. Analysis of PpRH1 and PpRH2 deletions, individually and together, indicates their potential roles in protonema, gametophore and sporophyte cellular and tissue development in P. patens. Additionally, the ultrastructural analysis of phyllid chloroplasts in Δrh2 and Δrh1/2 shows distinct starch granule accumulation under standard growth conditions associated with changes in photosynthetic activity parameters. We could not detect effects of either temperature or stress on protonema growth or PpRH1 and PpRH2 expression. Together, these results suggest that nuclear GUCT-containing RNA helicases play a role primarily in developmental processes directly or indirectly linked to photosynthesis activity in the moss P. patens. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11103-021-01152-w.
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Affiliation(s)
- Pierre-François Perroud
- Plant Cell Biology, Faculty of Biology, University of Marburg, Karl-von-Frisch Str. 8, 35043, Marburg, Germany
- Institut Jean-Pierre Bourgin, INRAE, AgroParisTech, Université Paris-Saclay, 78000, Versailles, France
| | - Viktor Demko
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 84215, Bratislava, Slovakia
- Plant Science and Biodiversity Center, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovakia
| | - Ako Eugene Ako
- Department of Biotechnology, Inland Norway University of Applied Sciences, Holsetgata 31, 2318, Hamar, Norway
- School of Animal, Rural and Environmental Sciences, Nottingham Trent University, Brackenhurst Campus, Southwell, NG25 0QF, Nottinghamshire, UK
| | - Rajendra Khanal
- Department of Biotechnology, Inland Norway University of Applied Sciences, Holsetgata 31, 2318, Hamar, Norway
- Department of Gastroenterology, Hepatology and Endocrinology, Hannover Medical School, Carl-Neuberg-Str. 1, 30625, Hannover, Germany
| | - Boris Bokor
- Department of Plant Physiology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovicova 6, 84215, Bratislava, Slovakia
- Comenius University in Bratislava Science Park, Ilkovicova 8, 84215, Bratislava, Slovakia
| | - Andrej Pavlovič
- Department of Biophysics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Šlechtitelů 27, 78371, Olomouc, Czech Republic
| | - Ján Jásik
- Plant Science and Biodiversity Center, Slovak Academy of Sciences, Dúbravská cesta 9, 84523, Bratislava, Slovakia
| | - Wenche Johansen
- Department of Biotechnology, Inland Norway University of Applied Sciences, Holsetgata 31, 2318, Hamar, Norway.
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Ma L, Zhang X, Yu K, Xu X, Chen T, Shi Y, Wang Y, Qiu S, Guo S, Cui J, Miao Y, Tian X, Du L, Yu Y, Xia J, Wang J. Targeting SLC3A2 subunit of system X C- is essential for m 6A reader YTHDC2 to be an endogenous ferroptosis inducer in lung adenocarcinoma. Free Radic Biol Med 2021; 168:25-43. [PMID: 33785413 DOI: 10.1016/j.freeradbiomed.2021.03.023] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [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] [Received: 03/03/2021] [Revised: 03/16/2021] [Accepted: 03/20/2021] [Indexed: 12/16/2022]
Abstract
The m6A reader YT521-B homology containing 2 (YTHDC2) has been identified to inhibit lung adenocarcinoma (LUAD) tumorigenesis by suppressing solute carrier 7A11 (SLC7A11)-dependent antioxidant function. SLC7A11 is a major functional subunit of system XC-. Inhibition of system XC- can induce ferroptosis. However, whether suppressing SLC7A11 is sufficient for YTHDC2 to be an endogenous ferroptosis inducer in LUAD is unknown. Here, we found that induction of YTHDC2 to a high level can induce ferroptosis in LUAD cells but not in lung and bronchus epithelial cells. In addition to SLC7A11, solute carrier 3A2 (SLC3A2), another subunit of system XC- was equally important for YTHDC2-induced ferroptosis. YTHDC2 m6A-dependently destabilized Homeo box A13 (HOXA13) mRNA because a potential m6A recognition site was identified within its 3' untranslated region (3'UTR). Interestingly, HOXA13 acted as a transcription factor to stimulate SLC3A2 expression. Thereby, YTHDC2 suppressed SLC3A2 via inhibiting HOXA13 in an m6A-indirect manner. Mouse experiments further confirmed the associations among YTHDC2, SLC3A2 and HOXA13, and demonstrated that SLC3A2 and SLC7A11 were both important for YTHDC2-impaired tumor growth and -induced lipid peroxidation in vivo. Moreover, higher expression of SLC7A11, SLC3A2 and HOXA13 indicate poorer clinical outcome in YTHDC2-suppressed LUAD patients. In conclusion, YTHDC2 is believed to be a powerful endogenous ferroptosis inducer and targeting SLC3A2 subunit of system XC- is essential for this process. Increasing YTHDC2 is an alternative ferroptosis-based therapy to treat LUAD.
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Affiliation(s)
- Lifang Ma
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China; Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Xiao Zhang
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Keke Yu
- Department of Bio-bank, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Xin Xu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Tianxiang Chen
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yi Shi
- Bio-X Institutes, Key Laboratory for the Genetics of Developmental and Neuropsychiatric Disorder, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yikun Wang
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Shiyu Qiu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Susu Guo
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China
| | - Jiangtao Cui
- Department of Thoracic Surgery, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Yayou Miao
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Xiaoting Tian
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Lutao Du
- Department of Clinical Laboratory, The Second Hospital of Shandong University, Jinan, 250033, Shandong province, China
| | - Yongchun Yu
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Jinjing Xia
- Department of Respiratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China.
| | - Jiayi Wang
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China; Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital of Tongji University, Shanghai, 200072, China.
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文 俊, 谭 震, 林 玮, 李 奇, 袁 泉. [Role of m 6A Reader YTHDC2 in Differentiation of Human Bone Marrow Mesenchymal Stem Cells]. Sichuan Da Xue Xue Bao Yi Xue Ban 2021; 52:402-408. [PMID: 34018357 PMCID: PMC10409204 DOI: 10.12182/20210560204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Indexed: 02/05/2023]
Abstract
OBJECTIVE To study the regulatory effect of YTH domain-containing protein 2 (YTHDC2), a member of N 6-methyladenosine (m 6A) readers, on the osteogenic or adipogenic differentiation of human bone marrow mesenchymal stem cells (hBMSCs). METHODS YTHDC2 expression was knocked down by small interfering RNA (siRNA) in vitro. Osteogenic differentiation and adipogenic differentiation of hBMSCs were induced after YTHDC2 knockdown in order to study the changes in the differentiation phenotype of hBMSCs. Alkaline phosphatase staining (ALP staining) and alizarin red S staining were performed to examine osteogenic activity and calcium-nodular formation. Nile red staining was performed to examine lipid-droplet formation. Real-time quantitative polymerase chain reaction (RT-qPCR) was used to assess the expression of osteogenesis and adipogenesis-related genes. RNA-sequencing was performed to identify the transcriptome changes after YTHDC2 knockdown and to explore the potential regulatory mechanism by which YTHDC2 regulated the diferentiation of hBMSCs. RESULTS In this study, we found that siRNA-induced YTHDC2 knockdown resulted in increased ALP activity and calcium-nodular formation of hBMSCs during osteogenic differentiation, and significantly upregulated the expression of osteogenesis-related genes. In addition, the lipid-droplet formation capacity of hBMSCs was decreased during adipogenic differentiation. The expression of adipogenesis-related genes was significantly down-regulated. Gene-set enrichmen analysis of RNA-seq data showed that YTHDC2 was significantly correlated with ribosome function and mRNA-translation-related signaling pathways. CONCLUSION The findings indicate that YTHDC2 knockdown can promote the osteogenic differentiation of hBMSCs and inhibit the adipogenic differentiation. YTHDC2 knockdown may cause changes in ribosome function.
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Affiliation(s)
- 俊儒 文
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 种植科 (成都 610041)State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Implant, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 震 谭
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 种植科 (成都 610041)State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Implant, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 玮民 林
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 种植科 (成都 610041)State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Implant, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 奇文 李
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 种植科 (成都 610041)State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Implant, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
| | - 泉 袁
- 口腔疾病研究国家重点实验室 国家口腔疾病临床医学研究中心 四川大学华西口腔医院 种植科 (成都 610041)State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, Department of Dental Implant, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
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Singh K, Lin J, Lecomte N, Mohan P, Gokce A, Sanghvi VR, Jiang M, Grbovic-Huezo O, Burčul A, Stark SG, Romesser PB, Chang Q, Melchor JP, Beyer RK, Duggan M, Fukase Y, Yang G, Ouerfelli O, Viale A, de Stanchina E, Stamford AW, Meinke PT, Rätsch G, Leach SD, Ouyang Z, Wendel HG. Targeting eIF4A-Dependent Translation of KRAS Signaling Molecules. Cancer Res 2021; 81:2002-2014. [PMID: 33632898 PMCID: PMC8137674 DOI: 10.1158/0008-5472.can-20-2929] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 12/01/2020] [Accepted: 02/22/2021] [Indexed: 11/16/2022]
Abstract
Pancreatic adenocarcinoma (PDAC) epitomizes a deadly cancer driven by abnormal KRAS signaling. Here, we show that the eIF4A RNA helicase is required for translation of key KRAS signaling molecules and that pharmacological inhibition of eIF4A has single-agent activity against murine and human PDAC models at safe dose levels. EIF4A was uniquely required for the translation of mRNAs with long and highly structured 5' untranslated regions, including those with multiple G-quadruplex elements. Computational analyses identified these features in mRNAs encoding KRAS and key downstream molecules. Transcriptome-scale ribosome footprinting accurately identified eIF4A-dependent mRNAs in PDAC, including critical KRAS signaling molecules such as PI3K, RALA, RAC2, MET, MYC, and YAP1. These findings contrast with a recent study that relied on an older method, polysome fractionation, and implicated redox-related genes as eIF4A clients. Together, our findings highlight the power of ribosome footprinting in conjunction with deep RNA sequencing in accurately decoding translational control mechanisms and define the therapeutic mechanism of eIF4A inhibitors in PDAC. SIGNIFICANCE: These findings document the coordinate, eIF4A-dependent translation of RAS-related oncogenic signaling molecules and demonstrate therapeutic efficacy of eIF4A blockade in pancreatic adenocarcinoma.
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Affiliation(s)
- Kamini Singh
- Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Jianan Lin
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut
- Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut
| | - Nicolas Lecomte
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Prathibha Mohan
- Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Askan Gokce
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Viraj R Sanghvi
- Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, New York
- Department of Molecular and Cellular Pharmacology, Sylvester Comprehensive Cancer Center, Miller School of Medicine, University of Miami, Miami, Florida
| | - Man Jiang
- Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Olivera Grbovic-Huezo
- Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Antonija Burčul
- Computational Biology Department, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Stefan G Stark
- Computational Biology Department, Memorial Sloan-Kettering Cancer Center, New York, New York
- Department of Computer Science, Biomedical Informatics, ETH, Zürich, Zürich, Switzerland
| | - Paul B Romesser
- Department of Radiation Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Qing Chang
- Molecular Pharmacology Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Jerry P Melchor
- David M. Rubenstein Center for Pancreatic Cancer Research, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Rachel K Beyer
- Cancer Research Technology Program, Frederick National Laboratory for Cancer Research, Frederick, Maryland
| | - Mark Duggan
- Tri-Institutional Drug Development Initiative, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Yoshiyuki Fukase
- Tri-Institutional Drug Development Initiative, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Guangli Yang
- The Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Ouathek Ouerfelli
- The Organic Synthesis Core Facility, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Agnes Viale
- Integrated Genomics Operation, Center for Molecular Oncology, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Elisa de Stanchina
- Molecular Pharmacology Program, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Andrew W Stamford
- Tri-Institutional Drug Development Initiative, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Peter T Meinke
- Tri-Institutional Drug Development Initiative, Memorial Sloan-Kettering Cancer Center, New York, New York
| | - Gunnar Rätsch
- Computational Biology Department, Memorial Sloan-Kettering Cancer Center, New York, New York
- Department of Computer Science, Biomedical Informatics, ETH, Zürich, Zürich, Switzerland
| | - Steven D Leach
- Molecular Systems Biology and Surgery, Geisel School of Medicine, Dartmouth, Norris Cotton Cancer Center at Dartmouth-Hitchcock, Lebanon, New Hampshire
| | - Zhengqing Ouyang
- Department of Biostatistics and Epidemiology, School of Public Health and Health Sciences, University of Massachusetts, Amherst, Massachusetts
| | - Hans-Guido Wendel
- Cancer Biology and Genetics Program, Memorial Sloan-Kettering Cancer Center, New York, New York.
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Mamishi S, Pourakbari B, Sadeghi RH, Marjani M, Mahmoudi S. Differential Gene Expression of ASUN, NEMF, PTPRC and DHX29: Candidate Biomarkers for the Diagnosis of Active and Latent Tuberculosis. Infect Disord Drug Targets 2021; 21:268-273. [PMID: 32167431 DOI: 10.2174/1871526520666200313144951] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 10/09/2019] [Revised: 12/24/2019] [Accepted: 01/29/2020] [Indexed: 06/10/2023]
Abstract
Tuberculosis (TB) remains one of the most important infectious causes of death throughout the world. A wide range of technologies have been used for the diagnosis of TB. However, current diagnostic tests are inadequate. The aim of this study was to evaluate the expression of four genes, namely ASUN, NEMF, PTPRC and DHX29 as candidate biomarkers for the diagnosis of Latent tuberculosis infection (LTBI) and active TB and discrimination of active TB and LTBI. ; Materials and Methods: The expression of the mentioned four genes as well as ACTB as a housekeeping gene was evaluated by real-time PCR. Receiver operating characteristic (ROC) curve analysis was conducted to assess the specificity and sensitivity of each validated biomarker. ; Results: Our results showed that the expression of theASUN gene could discriminate between active TB cases and healthy BCG vaccinated volunteers with an AUC value of 0.76, combing with a sensitivity of 68% and a specificity of 67%. It should be noted that the PTPRC gene also has the potential for the diagnosis of active TB with an AUC value of 0.67 and a sensitivity of 64.5% and a specificity of 70%. The curve revealed that cases with LTBI could be distinguished from healthy BCG vaccinated volunteers according to their expression of the ASUN gene with an AUC value of 0.81. The cut-off value for diagnosing was 11, with a sensitivity of 73% and a specificity of 79%. Moreover, the expression of the NEMF gene might be considered as a diagnostic tool for the diagnosis of LTBI. The analysis showed an AUC value of 0.75. The highest sensitivity (60%) and specificity (81%) were obtained with a cut off value of 12. ; Conclusion: According to our results, the expression of ASUN and NEMF genes might be considered as a diagnostic tool for the diagnosis of LTBI. Our study showed that the expression of ASUN and PTPRC was obviously higher in active TB patients than those in healthy BCG vaccinated controls. On the other hand, DHX29 and PTPRC genes might be helpful in differentiating active TB and LTBI. However, our findings deserve further validation in larger studies.
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Affiliation(s)
- Setareh Mamishi
- Pediatric Infectious Disease Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Babak Pourakbari
- Pediatric Infectious Disease Research Center, Tehran University of Medical Science, Tehran, Iran
| | | | - Majid Marjani
- Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Shima Mahmoudi
- Pediatric Infectious Disease Research Center, Tehran University of Medical Science, Tehran, Iran
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