1.Inhibition of replication and transcription of WSN influenza A virus by IFIT family genes.
Lidan HOU ; Jing LI ; Hongren QU ; Limin YANG ; Yajun CHEN ; Qianqian DU ; Wenjun LIU
Chinese Journal of Biotechnology 2015;31(1):123-134
IFIT family genes are a kind of interferon stimulated genes (ISGs), and play important roles in antiviral sector and immunity regulation. To study the regulatory effect of IFIT family genes during influenza A virus (IAV) infection, we used RNA-sequencing analysis (RNA-Seq) technique and found that when 293T cells were infected by A/WSN/33 (WSN), the concentration of IFIT family genes were increased. Further study reveals that overexpression of IFIT2 or IFIT3 could inhibit IAV replication and transcription, and cause the dose-dependent inhibition of polymerase activity of vRNP. In addition, IFIT2 and IFIT3 encoding protein could colocalize with NS1 in 293T cells infected by WSN, indicating that they might interact with each other. The results suggest that IFIT family genes can inhibit the replication and transcription of IAV, which contributes to our understanding of the regulatory effect of host factors during influenza virus infection.
HEK293 Cells
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Humans
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Influenza A virus
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physiology
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Influenza, Human
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genetics
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Intracellular Signaling Peptides and Proteins
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genetics
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Proteins
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genetics
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Virus Replication
2.Cytotoxicity of GS and IL-2 Activated PBMC to Malignant Glioma Cells
Junsheng LUO ; Lixue GU ; Huanjiu XI ; Bingjie WEI ; Xingbo LIU ; Jianwu QIU ; Pengfei ZHANG ; Hongren SHAN
Chinese Journal of Cancer Biotherapy 2000;7(4):273-274
Objective: To investigate a new method for improving the therapeutic effect on malignant glioma. Methods: A new type of killer cells, named GS-LAK, was induced by means of costimulating the peripheral ginsenoside(GS) and interleukin-2 (IL-2). Comparing with control group-LAK cells, cytotoxicity of GS-LAK cells against malignant glioma cells(BT325) was examined with MTI method. Results: It showed that GS-LAK cells exhibited some advantages over LAKcells in proliferation, cytotoxicity, as well as the utilizing of IL-2. Conclusion: The application of GS-LAK cells mightopen a new prospect to clinical therapeutic approach to malignant glioma.
3.Bedside noninvasive scoring system in diagnosis of coronary heart disease
Canxiu ZHANG ; Xigang XIAO ; Lanfeng WANG ; Wei PAN ; Hongren LIU ; Yonglin HUANG
Chinese Journal of General Practitioners 2012;11(1):37-41
Objectives To evaluate the effectiveness of bedside noninvasive scoring system in diagnosis of coronary heart disease (CAD).MethodsSix hundred and twelve patients with suspected CAD in our hospital were enrolled (343 males and 269 females) from September 2008 to October 2010,with an average age of 55 ± 7 y.The detailed history was taken; physical examination,resting electrocardiogram,blood biochemistry,treadmill exercise test and/or 12 lead Holter monitoring,64 or 256 rows CT coronary artery imaging and coronary artery angiography were performed in all patients.The risk factors for CAD were screened by multiple questionnaire surveys with Delphi method.The risk factors were stratified according to the results of expert survey: heavy smoking,diabetes mellitus,typical angina,positive treadmill exercise test and positive Holter monitoring electrocardiogram were included in the highest risk factors with an integrated scores of 8 ; dyslipidemia of 3 items,hypertension complicated with left ventricular hypertrophy were high risk factors with an integrated scores of 6; males≥40 y,medium smoking,dyslipidemia of 2 items,pathoglycemia,heavy drinking,positive ECG and post-menopause females were moderate risk factors with integrated scores of 4; Low risk factors contain moderate drinking and dyslipidemia of item,were classified as low risk factors with an integrated scores of 2. The bedside noninvasive scoring system was evaluated in all patients and the results were compared with those from multi-slice spiral CT or coronary angiography.ResultsWhen integrated score ≥ 24 was set as the cut-off level for diagnosis of CAD,thesensitivity,specificity,positive predictive value and accuracy were 89.95%,85.63%,94.03%and 88.73% respectively.When integrated score≤ 14 was set as the exclusion criteria of CAD,the sensitivity,specificity,positive predictive value and accuracy were of 93.10%,82.86%,98.09% and 84.80% respectively.The accuracy was lower than that of multi-slice spiral CT or coronary angiography( P <0.05 ).ConclusionsThe bedside noninvasive scoring system is effective for preliminary diagnose of CAD,but need to be further improved.
4.The Superior Colliculus: Cell Types, Connectivity, and Behavior.
Xue LIU ; Hongren HUANG ; Terrance P SNUTCH ; Peng CAO ; Liping WANG ; Feng WANG
Neuroscience Bulletin 2022;38(12):1519-1540
The superior colliculus (SC), one of the most well-characterized midbrain sensorimotor structures where visual, auditory, and somatosensory information are integrated to initiate motor commands, is highly conserved across vertebrate evolution. Moreover, cell-type-specific SC neurons integrate afferent signals within local networks to generate defined output related to innate and cognitive behaviors. This review focuses on the recent progress in understanding of phenotypic diversity amongst SC neurons and their intrinsic circuits and long-projection targets. We further describe relevant neural circuits and specific cell types in relation to behavioral outputs and cognitive functions. The systematic delineation of SC organization, cell types, and neural connections is further put into context across species as these depend upon laminar architecture. Moreover, we focus on SC neural circuitry involving saccadic eye movement, and cognitive and innate behaviors. Overall, the review provides insight into SC functioning and represents a basis for further understanding of the pathology associated with SC dysfunction.
Superior Colliculi/physiology*
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Saccades
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Neurons/physiology*
5.Sexual Dimorphism of Inputs to the Lateral Habenula in Mice.
Xue LIU ; Hongren HUANG ; Yulin ZHANG ; Liping WANG ; Feng WANG
Neuroscience Bulletin 2022;38(12):1439-1456
The lateral habenula (LHb), which is a critical neuroanatomical hub and a regulator of midbrain monoaminergic centers, is activated by events resulting in negative valence and contributes to the expression of both appetitive and aversive behaviors. However, whole-brain cell-type-specific monosynaptic inputs to the LHb in both sexes remain incompletely elucidated. In this study, we used viral tracing combined with in situ hybridization targeting vesicular glutamate transporter 2 (vGlut2) and glutamic acid decarboxylase 2 (Gad2) to generate a comprehensive whole-brain atlas of inputs to glutamatergic and γ-aminobutyric acid (GABA)ergic neurons in the LHb. We found >30 ipsilateral and contralateral brain regions that projected to the LHb. Of these, there were significantly more monosynaptic LHb-projecting neurons from the lateral septum, anterior hypothalamus, dorsomedial hypothalamus, and ventromedial hypothalamus in females than in males. More interestingly, we found a stronger GABAergic projection from the medial septum to the LHb in males than in females. Our results reveal a comprehensive connectivity atlas of glutamatergic and GABAergic inputs to the LHb in both sexes, which may facilitate a better understanding of sexual dimorphism in physiological and pathological brain functions.
Animals
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Male
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Mice
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Glutamic Acid/metabolism*
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Habenula/metabolism*
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Hypothalamus/metabolism*
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Neural Pathways/physiology*
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Sex Characteristics
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Vesicular Glutamate Transport Protein 2/metabolism*
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Female