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| 1 | Hepatitis B virus hijacks CTHRC1 to evade host immunity and maintain replication显示文摘HepatitisBvirus(HBV)infection causes acuteand chronic liver diseases,but is not directly cytopathic.Liver injury results fromrepeated attempts of the cellular immune response system to control the viral infection.Here,we investigate the roles of cellular factors and signaling pathways involved in the regulation of HBV replication to reveal the mechanism underlying HBV infection and pathogenesis.Weshowthat collagen triple helix repeat containing 1(CTHRC1)expression is elevated in HBV-infected patients andin HBV-transfected cells through epigenetic modification and transcriptional regulation.CTHRC1 facilitates HBV replication in cultured cells and BALB/c mice by activating the PKCa/ERK/JNK/c-Jun cascade to repress the IFN/JAK/STAT pathway.HBV-activated CTHRC1 downregulates the activityof typeI interferon(IFN),theproductionof IFN-stimulatedgenes(ISGs),andthephosphorylationofsignal transducerandactivator of transcription 1/2(STAT1/2),whereas it upregulates the phosphorylation and ubiquitination of type I IFN receptors(IFNARa/b).Thus,our results showthat HBV uses a novelmechanismto hijack cellular factors and signal cascades in order to evade host antiviral immunity and maintain persistent infection.We also demonstrate that CTHRC1 has a novel role in viral infection. | Lan Bai Wei Zhang Li Tan Hongchuan Yang Maolin Ge Chengliang Zhu Rui Zhang Yanhua Cao Junbo Chen Zhen Luo Wenzhe Ho Fang Liu Kailang Wu Jianguo Wu | 2015 | Journal of Molecular Cell Biology2015,7,6: | 2 |
| 2 | Sequential expression of cyclooxygenase-2, glutamate receptor-2, and platelet activating factor receptor in rat hippocampal neurons after fluid percussion injury显示文摘Traumatic brain injury causes gene expression changes in different brain regions. Occurrence and development of traumatic brain injury are closely related, involving expression of three factors, namely cyclooxygenase-2, glutamate receptor-2, and platelet activating factor receptor. However, little is known about the correlation of these three factors and brain neuronal injury. In this study, primary cultured rat hippocampal neurons were subjected to fluid percussion injury according to Scott's method, with some modifications. RT-PCR and semi-quantitative immunocytochemical staining was used to measure the expression levels of cyclooxygenase-2, glutamate receptor-2, and platelet activating factor receptor. Our results found that cyclooxygenase-2 expression were firstly increased post-injury, and then decreased. Both mRNA and protein expression levels reached peaks at 8 and 12 hours post-injury, respectively. Similar sequential changes in glutamate receptor 2 were observed, with highest levels mRNA and protein expression at 8 and 12 hours post-injury respectively. On the contrary, the expressions of platelet activating factor receptor were firstly decreased post-injury, and then increased. Both mRNA and protein expression levels reached the lowest levels at 8 and 12 hours post-injury, respectively. Totally, our findings suggest that these three factors are involved in occurrence and development of hippocampal neuronal injury. | Zhiqiang Li Qingming Shu Lingzhi Li Maolin Ge Yongliang Zhang | 2014 | Neural Regeneration Research2014,9,9: | 1 |
| 3 | The progress in diagnosis and treatment of trigeminal neuralgia显示文摘Trigeminal neuralgia(TN)is characterized by recurrent facial acupuncture like,electric shock like,burning like pain and other common clinical cranial nerve diseases in the trigeminal nerve distribution area.Around the world,people who are 40 or more are at risk.The incidence rate of TN of female is slightly higher than that of male and most of the affecting areas are on the right side unilaterally,which affects maxillary nerve and mandibular nerve,yet seldom ophthalmic nerve.Although controversy exists in the pathogenesis of TN,the most accepted theory is microvascular compression,which forces on the demyelination of the sensory axon of the trigeminal nerve root.Additionally,slight touch,conversation and chewing may cause intolerable pain.The diagnosis of TN mainly depends on clinical manifestation.The treatment mainly includes medicine,operation,and some supplementary methods.Among them,antiepileptics and tricyclic antidepressants are the first-line treatment.Surgical treatment is mainly used for patients with TN who have failed in drug treatment or have intolerable side effects.The methods of operation include destructive or non-destructive operation.Deep brain stimulation(DBS)and motor cortex stimulation(MCS)are new therapeutic techniques emerged recently.This method is expected to alleviate the refractory TN with poor drug control or ineffective conventional surgical treatment.At present,this method has not been approved for clinical treatment.Of course,more clinical data collection processes are in progress. | Xiaodong Wang Jian Yang Suping Li Maolin Ge Rile Wu | 2020 | Journal of Translational Neuroscience2020,5,1: | 0 |