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Interferon-lambda:New functions on intestinal symptoms in COVID-19 被引量:1
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作者 Yi-Yang Pan Liu-Can Wang +1 位作者 Feng Yang Min Yu 《World Journal of Gastroenterology》 SCIE CAS 2023年第13期1942-1954,共13页
The tremendous public health and economic impact of coronavirus disease 2019(COVID-19), caused by severe acute respiratory syndrome coronavirus 2(SARSCoV-2), has become a huge challenge globally. There is increasing e... The tremendous public health and economic impact of coronavirus disease 2019(COVID-19), caused by severe acute respiratory syndrome coronavirus 2(SARSCoV-2), has become a huge challenge globally. There is increasing evidence that SARS-CoV-2 induces intestinal infections. Type Ⅲ interferon(IFN-λ) has an antiviral role in intestinal infection, with focused, long-lasting, and non-inflammatory characteristics. This review presents a summary of the structure of SARSCoV-2, including its invasion and immune escape mechanisms. Emphasis was placed on the gastrointestinal impact of SARS-CoV-2, including changes to the intestinal microbiome, activation of immune cells, and inflammatory responses.We also describe the comprehensive functions of IFN-λ in anti-enteric SARS-CoV-2 infection, and discuss the potential application of IFN-λ as a therapeutic agent for COVID-19 with intestinal symptoms. 展开更多
关键词 COVID-19 SARS-CoV-2 interferon-λ Gastrointestinal infection Mechanism Anti-viral response
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Construction of Fluorescence Sensing Platform on the Basis of Carbon Nitride Nanosheet for the Detection of Interferon-γ
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作者 Xiaoqing Wen Zichun Song +3 位作者 Jiuying Cui Yan Li Qianli Tang Xianjiu Liao 《Journal of Biosciences and Medicines》 CAS 2023年第1期162-174,共13页
Purpose: Interferon-γ (INF-γ) is a cytokine that participates in the immune reaction of the body. Its level of secretion can reflect the immune response condition after the body is infected by pathogens, which is a ... Purpose: Interferon-γ (INF-γ) is a cytokine that participates in the immune reaction of the body. Its level of secretion can reflect the immune response condition after the body is infected by pathogens, which is a significant indication of clinically-related diseases. Therefore, it is of great significance in application to develop a fluorescence biosensor to inspect INF-γ with rapidness, high sensitivity and high practicability. Method: The fluorescence sensor is made on the basis of the two-dimensional nano-material namely Carbon Nitride Nanosheet (CNNS) and the Aptamer probe to identify INF-γ (Apt&reg;INF-γ). CNNS can quickly quench the Cy5 fluorescent dye modified on the Apt&reg;INF-γ probe due to the Photoinduced Electron Transfer (PET), but when the INF-γ exists, Apt&reg;INF-γ specifically identifies and combines it. The complex of Apt&reg;INF-γ and INF-γ is away from CNNS, which can effectively block the fluorescent signal of Apt?INF-γ being quenched by CNNS. Result: The sensitive detection of IFN-γ protein can be achieved through the application of CNNS/Apt&reg;INF-γ fluorescence sensing platform. In this method, the intensity of the fluorescent signal is positively correlated with the concentration of IFN-γ, of which the liner response range is 0.5 - 100 ng/mL and the limit of detection is 0.303 ng/mL. In addition, this fluorescence sensing platform has the advantages of high specificity, simple operation and low costs. It can inspect the content of IFN-γ in clinical serum samples without interference. The actual recovery rate of serum samples is 97.11% - 106.96%. Conclusion: Therefore, the CNNS/Apt&reg;INF-γ sensing platform is expected to be implemented in the actual clinical detection, also conducive to developing a universal fluorescence biosensor to inspect other target materials. 展开更多
关键词 Carbon Nitride Nanosheet APTAMER interferon-Γ Fluorescence Sensing Analysis
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Development and validation of a prognostic indicator for thyroid carcinoma based on interferon-γ-related gene analysis
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作者 Zhi Li Chao Liu +1 位作者 Lu Zhang Zhi-Yong Deng 《Medical Data Mining》 2023年第2期31-40,共10页
Background:Women are mostly affected by thyroid carcinoma(THCA),an endocrine system cancer.However,the biomarkers of interferon-gamma(IFN-γ)in THCA have not been identified,so this study aimed to investigate whether ... Background:Women are mostly affected by thyroid carcinoma(THCA),an endocrine system cancer.However,the biomarkers of interferon-gamma(IFN-γ)in THCA have not been identified,so this study aimed to investigate whether IFN-γ-related genes could predict the overall prognosis of THCA patients.Methods:Transcriptome-related expression data were obtained from The Cancer Genome Atlas database.Differential expression of IFN-γ-responsive genes(DE-IFN-γ)between THCA and normal samples was determined based on the“limma”package in R.The prognostic value of the model was determined by least absolute shrinkage and selection operator,univariate Cox,and multivariate Cox analyses,as well as Kaplan-Meier curves.A nomogram was created to predict the THCA survival probabilities by combining clinicopathological features and prognostic genetic features.High-risk and low-risk groups were examined THCA-related pathways using gene set enrichment analysis.Correlations between the two groups with different scores and the immune microenvironment and immunotherapy were also explored.Finally,we verified the expression levels using real-time PCR.Results:From 48 DE-IFN-γ,4 DE-IFN-γ(METTL7B,VAMP8,CFB,IFIT3)associated with good prognosis were selected by least absolute shrinkage and selection operator and Cox co-screening.Based on these four genes,THCA patients were divided into two groups,with the high-risk group having a poorer overall survival rate.The risk score,age,and staging were identified as independent prognostic factors.The low-scoring group had significantly enriched 13 signaling pathways,according to gene set enrichment analysis.Meanwhile,the two groups delineated according to the risk score differed in terms of the immune microenvironment and immune checkpoints.Finally,our real-time PCR results corroborated previous hypotheses.Conclusion:Researchers identified four DE-IFN-γbiomarker genes with promising prognostic value for THCA patients,which may help guide immunotherapy preference.Moreover,it may subsequently influence our THCA treatment decisions. 展开更多
关键词 thyroid carcinoma interferon-Γ PROGNOSIS BIOINFORMATICS the cancer genome atlas
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他克莫司联合激素在重症肌无力患者中的效果及对IFN-γIL-4和TGF-β的影响
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作者 荆婧 杜冉 +1 位作者 邓文静 滕军放 《中国实用神经疾病杂志》 2024年第8期971-974,共4页
目的探讨他克莫司联合激素在重症肌无力(MG)患者中的治疗效果及对干扰素-γ(IFN-γ)、白细胞介素-4(IL-4)及转化生长因子-β(TGF-β)的影响。方法选取2022-05—2023-09郑州大学第一附属医院的MG患者96例为对象,信封法分为2组各48例。对... 目的探讨他克莫司联合激素在重症肌无力(MG)患者中的治疗效果及对干扰素-γ(IFN-γ)、白细胞介素-4(IL-4)及转化生长因子-β(TGF-β)的影响。方法选取2022-05—2023-09郑州大学第一附属医院的MG患者96例为对象,信封法分为2组各48例。对照组采用激素治疗,观察组采用他克莫司联合激素治疗,2组患者均完成4周治疗,比较2组重症肌无力日常生活量表(MG-ADL)、重症肌无力定量评分体系(QMGS评分)、生化指标水平及安全性。结果干预后MG-ADL评分观察组(2.95±0.79)低于对照组(4.59±1.12,P<0.05),QMGS评分观察组(8.51±1.69)低于对照组(12.69±2.24,P<0.05),2组干预后日常生活及肌力均得到提高,疲劳耐受性增强,观察组较对照组改善更明显。2组干预后生化指标得到改善,干预后观察组IFN-γ水平(43.96±3.18)低于对照组(52.58±3.63,P<0.05),观察组IL-4水平(36.89±6.39)高于对照组(31.11±6.42,P<0.05),观察组TGF-β水平高于对照组(41.43±3.91,P<0.05)。不良反应发生率观察组(10.42%)较对照组(6.25%)无统计学差异(P>0.05)。结论他克莫司联合激素治疗MG患者效果显著,能提高日常生活质量,降低MG-ADL及QMGS评分,改善生化指标水平,且治疗安全性较高。 展开更多
关键词 重症肌无力 他克莫司 激素 干扰素-Γ 白细胞介素-4 转化生长因子-Β 安全性
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Revisiting tuberculosis as a cause of gastric outlet obstruction:Insights from a case report
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作者 Jin Meng Li-Mei Zhang +10 位作者 Zhi-Gang Wang Xiu Zhao Hai-Xia Bai Ying Wang De-Yu Chen De-Long Liu Cheng-Chun Ji Yuan Liu Lei Wang Bo-Yang Li Zhi-Tao Yin 《World Journal of Clinical Cases》 SCIE 2024年第32期6563-6565,共3页
Gastroduodenal tuberculosis(GD-TB)is exceptionally rare.The clinical manifestations of gastrointestinal TB are diverse and non-specific,which makes diagnosis difficult,leading to delayed diagnosis and high mortality.A... Gastroduodenal tuberculosis(GD-TB)is exceptionally rare.The clinical manifestations of gastrointestinal TB are diverse and non-specific,which makes diagnosis difficult,leading to delayed diagnosis and high mortality.As a peer-reviewer of World Journal of Clinical Cases,I would like to share my opinion on the article published by this journal.The patient had no family history of TB or contact with people with TB.Primary GD-TB presenting as gastric outlet obstruction and normal findings of thoracic computed tomography increased the difficulty of diagnosis and treatment in this patient.The diagnosis and treatment scheme of this typical case have reference value for the clinical treatment of GD-TB. 展开更多
关键词 TUBERCULOSIS Gastrointestinal tuberculosis Gastric outlet obstruction Gastroduodenal tuberculosis X pert interferon-γrelease assay
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肺腺癌中医证型与诱导痰TGF-β、IFN-γ、MMP-9的关系
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作者 刘清清 《分子诊断与治疗杂志》 2024年第1期68-71,共4页
目的观察肺腺癌中医证型与诱导痰转化生长因子(TGF)-β、干扰素(IFN)-γ、基质金属蛋白酶9(MMP-9)的关系。方法选取2020年1月至2023年1月临泉县人民医院收治的80例肺腺癌患者作为研究组,并根据研究组中医症型将其分为脾肾阳虚型(A组),... 目的观察肺腺癌中医证型与诱导痰转化生长因子(TGF)-β、干扰素(IFN)-γ、基质金属蛋白酶9(MMP-9)的关系。方法选取2020年1月至2023年1月临泉县人民医院收治的80例肺腺癌患者作为研究组,并根据研究组中医症型将其分为脾肾阳虚型(A组),气阴两虚型(B组)以及肺脾气虚型(C组),另外选取同期体检健康人群80名作为对照组,比较各组诱导痰TGF-β、IFN-γ、MMP-9水平。结果80例肺腺癌患者中,脾肾阳虚型患者28例(35.00%),气阴两虚型患者26例(32.50%),肺脾气虚型患者26例(32.50%)。研究组患者诱导痰TGF-β、MMP-9水平高于对照组,差异有统计学意义(t=5.793、20.727,P<0.05),诱导痰IFN-γ水平低于对照组,差异有统计学意义(t=6.511,P<0.05)。A组患者诱导痰TGF-β、MMP-9水平高于B组、C组,差异有统计学意义(t=3.704、3.859、5.948、6.290,P<0.05),诱导痰IFN-γ水平及KPS评分低于B组、C组,差异有统计学意义(t=9.391、8.982、2.748、2.282,P<0.05)。B组与C组患者诱导痰TGF-β、IFN-γ、MMP-9水平及KPS评分之间的差异无统计学意义(t=0.269、0.808、0.421、0.376,P>0.05)。pearson相关性结果显示,诱导痰TGF-β、MMP-9水平与KPS评分成负相关(P<0.05),IFN-γ水平与KPS评分成正相关(P<0.05)。结论与气阴两虚型及肺脾气虚型肺腺癌患者相比,脾肾阳虚型患者诱导痰TGF-β及MMP-9水平较高,IFN-γ水平较低,且三者均与KPS评分具有相关性,可作为肺腺癌中医辨证的辅助指标。 展开更多
关键词 肺腺癌 中医证型 转化生长因子-Β 干扰素-Γ 基质金属蛋白酶9
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Preliminary results of Thymosin-a1 versus interferon-α treatment in patients with HBeAg negative and serum HBV DNA positive chronic hepatitis B 被引量:22
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作者 Lin Zhuang Jing You Bao Zhang Tang Su Ying Ding Kui Hua Yan Dan Peng Yan Mei Zhang Lu Zhang ~1Department of Hepatology,Kunming Third Municipal Peoples Hospital,Kunming 650041,Yunnan Province,China ~2Department of Infectious Diseases,The First Affiliated Hospital of Kunming Medical College,Kunming 650032,Yunnan Province,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2001年第3期407-410,共4页
INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 a... INTRODUCTIONIn China ,the incidence and mortality of gastric cancer rank the second among all cancers. Recent development of cancer [1-20].The aim of this study was investigat the insight of apoptosis and bcl-2, p53 and C-myc protein expression in the development of gastric cancer . 展开更多
关键词 hepatitis B hepatitis B surface antigens interferon-Α thymosin-a1 hepatitis B E antigens SEROLOGY
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Adeno-associated virus mediated interferon-gamma inhibits the progression of hepatic fibrosis in vitro and in vivo 被引量:26
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作者 MiaoChen Guang-JiWang +4 位作者 YongDiao Rui-AnXu Hai-TangXie Xin-YanLi Jian-GuoSun 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第26期4045-4051,共7页
AIM:To investigate the effects of adeno-associated virus (AAV) mediated expression of human interferon-γ for gene therapy in experimental hepatic fibrosis in vitro and in vivo. METHODS: We constructed the recombinant... AIM:To investigate the effects of adeno-associated virus (AAV) mediated expression of human interferon-γ for gene therapy in experimental hepatic fibrosis in vitro and in vivo. METHODS: We constructed the recombinant AAV encoding human INF-γ (rAAV- INF-γ) and took the primary rat hepatic stellate cells and carbon tetrachloride induced rats as the experimental hepatic fibrosis model in vitro and in vivo. Immunocytochemistry analysis was used to reveal the expression of α-SMA, the marker protein expressed in hepatic stellate cells. The mRNA expression of TGF-β, TIMP-1, and MMP-13 were analyzed by RT-PCR method. In vivo study, the hydroxyproline content in liver and serum AST, ALT were also detected. RESULTS: In vitro study, AAV vector could mediated efficient expression of human INF-γ, which inhibit the activation of hepatic stellate cells, decrease the expression of α-SMA and mRNA of TIMP-1, TGF-β, with the MMP-13 unchanged. In vivo study, the histological examination revealed that rAAV- INF-γ could inhibit the progression of the hepatic fibrosis. In the rAAV-INF-γ induced group, the hydroxyproline content and serum AST, ALT level were decreased to 177±28 μg/g wet liver, 668.5±140.0, 458.4±123.5 U/L, compare with the fibrosis control group 236±31 μg/g wet liver, 1 019.1±276.3, 770.5±154.3 U/L, respectively (P<0.01). mRNA expression of TIMP-1 in the rAAV-INF-γ induced rat liver was decreased while no significant change was observed in TGF-β and MMP-13. CONCLUSION: All these results indicated that rAAV-INF-γ has potential effects for gene therapy of hepatic fibrosis, which could inhibit the progression of hepatic fibrosis. 展开更多
关键词 Adeno-associated virus interferon-γ Hepatic stellate cells Hepatic fibrosis
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Influence of HLA-DRB1 alleles and HBV genotypes on interferon-α therapy for chronic hepatitis B 被引量:14
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作者 Rui-Hai Chu Li-Xian Ma Gang Wang Li-Hua Shao 《World Journal of Gastroenterology》 SCIE CAS CSCD 2005年第30期4753-4757,共5页
AIM. To investigate the influence of HLA-DRB1 alleles and HBV genotypes on inberferon-α therapy for chronic hepatitis B. METHODS: HLA-DRBI*03, *07, *09,*12, *15 alleles were determined using polymerase chain re... AIM. To investigate the influence of HLA-DRB1 alleles and HBV genotypes on inberferon-α therapy for chronic hepatitis B. METHODS: HLA-DRBI*03, *07, *09,*12, *15 alleles were determined using polymerase chain reaction/sequence specific primer (PCR/SSP) technique in 126 patients with chronic hepatitis B and 76 normal control subjects in Shandong Province, and HBV genotypes were determined by nested-PCR analysis using type-specific primers in 126 patients. RESULTS: The positivity of HLA-DRB1*07 allele in chronic hepatitis B group was significantly higher than that in normal control group (X^2 = 6.33, P〈0.025, RR = 2.37). Among the 126 patients, genotype B was found in 38 (30.2%), genotype C in 69 (54.8%), and mixed genotype (B+C) in 19 (15.0%), genotypes D-F were not found. Among the 46 DRB1*07(+) patients, 7 were responders and 39 were non-responders among them (X^2 = 6.71, P〈0.05). The positivity of HLADRB1*07 and prevalence of HBV genotype C were significantly higher in non-responders than in responders. CONCLUSION: High positivities of HLA-DRB1 *07 allele and HBV genotype C are closely associated with the lower response to interferon-α therapy for chronic hepatitis B. 展开更多
关键词 HLA-DRB1 alleles HBV genotypes interferon-α therapy Chronic hepatitis B
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Inhibition of hepatitis B virus DNA replicative intermediate forms by recombinant interferon-γ 被引量:10
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作者 Mohammad Khalid Parvez Deepak Sehgal +2 位作者 Shiv Kumar Sarin Seemi Farhat Basir Shahid Jameel 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第19期3006-3014,共9页
AIM: To evaluate the in vitro anti-HBV activity of recombinant human IFN-γ, alone and in combination with lamivudine. METHODS: A recombinant baculovirus-HBV/HepG2 culture system was developed which could support prod... AIM: To evaluate the in vitro anti-HBV activity of recombinant human IFN-γ, alone and in combination with lamivudine. METHODS: A recombinant baculovirus-HBV/HepG2 culture system was developed which could support productive HBV infection in vitro. Expression of HBsAg and HBeAg in infected HepG2 culture medium was detected by commercial enzyme immunoassays. HBV DNA replication intermediates were detected in infected cells by Southern hybridization and viral DNA load was determined by dot hybridization. RESULTS: IFN-γat 0.1 to 5μg/L efficiently down regulated HBsAg expression in transduced HepG2 cells. At 5μg/L, IFN-γalso suppressed HBV DNA replication in these cells. While treatment with a combination of lamivudine and IFN-γshowed no additive effect, sequential treatment first with lamivudine and then IFN-γwas found to be promising. In this culture system the best HBV suppression was observed with a pulse of 2μmol/L lamivudine for two days, followed by 1μg/L IFN-γfor another four days. Compared to treatment with lamivudine alone, the sequential use of 0.2μmol/L lamivudine for two days, followed by 5μg/L IFN-γfor six days showed a 72% reduction in HBV cccDNA pool. CONCLUSION: This in vitro study warrants further evaluation of a combination of IFN-γand lamivudine, especially in IFN-αnon-responder chronic hepatitis B patients. A reduced duration of lamivudine treatment would also restrict the emergence of drug-resistant HBV mutants. 展开更多
关键词 Hepatitis B virus (HBV) LAMIVUDINE interferon-Γ Replicative intermediates CCCDNA
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Anti Cervix Cancer Activity of Co-immobilized Tumor Necrosis Factor-α and Interferon-γ 被引量:7
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作者 Yanqing GUAN Limei HE +1 位作者 Shumei CAI Tianhong ZHOU 《Journal of Materials Science & Technology》 SCIE EI CAS CSCD 2006年第2期200-204,共5页
Tumor necrosis factor α (TNF-α) and interferon-γ (IFN-γ) are cytokines with strong antitumor activities. They were reacted with a photoactive arylazide-4-azidobenzoic acid, resulting in photoactive TNF-α and ... Tumor necrosis factor α (TNF-α) and interferon-γ (IFN-γ) are cytokines with strong antitumor activities. They were reacted with a photoactive arylazide-4-azidobenzoic acid, resulting in photoactive TNF-α and IFN-γ. The infrared (IR) spectra of these products showed the characteristic absorption of an azido group at 2127 cm^-1. By photo-immobilization, this modified TNF-α and IFN-γ were immobilized on polystyrene membranes for cell culture to prepare biomaterials. The micro-morphology of photoactive cytokines was observed with a scanning electron microscope (SEM). The inhibitory effect on growth of Hela cells and inducing apoptosis activity of these two cytokines were analyzed by growth curve, transmission electron microscope (TEM) and fluorescence active cell sorter (FACS). The results showed that co-immobilization of IFN-γ and TNF-α had significant inhibitory effect on growth of Hela cells, inhibitory rate up to 82%, and IFN-γ had obviously synergistic action. 展开更多
关键词 Tumor necrosis factor (TNF-α) interferon-γ (IFN-γ) Cervix cancer cell line Photo-immobilization POLYSTYRENE Inhibitory activity
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Anti-rods/rings autoantibody generation in hepatitis Cpatients during interferon-α/ribavirin therapy 被引量:4
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作者 Gerson Dierley Keppeke S John Calise +1 位作者 Edward KL Chan Luis Eduardo C Andrade 《World Journal of Gastroenterology》 SCIE CAS 2016年第6期1966-1974,共9页
Chronic inflammation associated with hepatitis C virus(HCV) infection can lead to disabling liver diseases with progression to liver cirrhosis and hepatocellular carcinoma. Despite the recent availability of more effe... Chronic inflammation associated with hepatitis C virus(HCV) infection can lead to disabling liver diseases with progression to liver cirrhosis and hepatocellular carcinoma. Despite the recent availability of more effective and less toxic therapeutic options, in most parts of the world the standard treatment consists of a weekly injection of pegylated interferon α(IFN-α) together with a daily dose of ribavirin. HCV patients frequently present circulating non-organ-specific autoantibodies demonstrating a variety of staining patterns in the indirect immunofluorescence assay for antinuclear antibodies(ANA). Between 20% to 40% of HCV patients treated with IFN-α and ribavirin develop autoantibodies showing a peculiar ANA pattern characterized as rods and rings(RR) structures. The aim of this article is to review the recent reports regarding RR structures and anti-rods/rings(antiRR) autoantibody production by HCV patients after IFN-α/ribavirin treatment. Anti-RR autoantibodies first appear around the sixth month of treatment and reach a plateau around the twelfth month. After treatment completion, anti-RR titers decrease/disappear in half the patients and remain steady in the other half. Some studies have observed a higher frequency of anti-RR antibodies in relapsers, i.e., patients in which circulating virus reappears after initially successful therapy. The main target of anti-RR autoantibodies in HCV patients is inosine-5'-monophosphate dehydrogenase 2(IMPDH2), the rate-limiting enzyme involved in the guanosine triphosphate biosynthesis pathway. Ribavirin is a direct IMPDH2 inhibitor and is able to induce the formation of RR structures in vitro and in vivo. In conclusion, these observations led to the hypothesis that anti-RR autoantibody production is a human model of immunologic tolerance breakdown that allows us to explore the humoral autoimmune response from the beginning of the putative triggering event: exposure to ribavirin and interferon. 展开更多
关键词 Rods and RINGS AUTOANTIBODIES Hepatitis C RIBAVIRIN interferon-Α
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Precise prediction model and simplified scoring system for sustained combined response to interferon-α 被引量:5
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作者 Qian-Guo Mao Ru-Mian Zhang +3 位作者 Jin-Shui Pan Kuang-Nan Fang Jian-Ping Zhu Qing-Yang Hong 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第27期3465-3471,共7页
AIM:To establish a predictive algorithm which may serve for selecting optimal candidates for interferon-α(IFN-α) treatment.METHODS:A total of 474 IFN-α treated hepatitis B virus e antigen(HBeAg)-positive patients w... AIM:To establish a predictive algorithm which may serve for selecting optimal candidates for interferon-α(IFN-α) treatment.METHODS:A total of 474 IFN-α treated hepatitis B virus e antigen(HBeAg)-positive patients were enrolled in the present study.The patients' baseline characteristics,such as age,gender,blood tests,activity grading(G) of intrahepatic inflammation,score(S) of liver fibrosis,hepatitis B virus(HBV) DNA and genotype were evaluated;therapy duration and response of each patient at the 24th wk after cessation of IFN-α treatment were also recorded.A predictive algorithm and scoring system for a sustained combined response(CR) to IFN-α therapy were established.About 10% of the patients were randomly drawn as the test set.Responses to IFN-α therapy were divided into CR,partial response(PR) and non-response(NR).The mixed set of PR and NR was recorded as PR+NR.RESULTS:Stratified by therapy duration,the most significant baseline predictive factors were alanine aminotransferase(ALT),HBV DNA level,aspartate aminotransferase(AST),HBV genotype,S,G,age and gender.According to the established model,the accuracies for sustained CR and PR+NR,respectively,were 86.4% and 93.0% for the training set,81.5% and 91.0% for the test set.For the scoring system,the sensitivity and specificity were 78.8% and 80.6%,respectively.There were positive correlations between ALT and AST,and G and S,respectively.CONCLUSION:With these models,practitioners may be able to propose individualized decisions that have an integrated foundation on both evidence-based medicine and personal characteristics. 展开更多
关键词 Chronic hepatitis B interferon-Α Patient selection Predictive model Scoring system Treatment outcome
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Inhibitory effect of interferon-α-2b on expression of cyclooxygenase-2 and vascular endothelial growth factor in human hepatocellular carcinoma inoculated in nude mice 被引量:5
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作者 Bin Cao Xiao-Ping Chen Peng Zhu Lei Ding Jian Guan Zuo-Liang Shi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第44期6802-6807,共6页
AIM: To evaluate the effects of interferon-α-2b (IFN- α-2b) on expression of cyclooxygenase-2 (COX-2) and vascular endothelial growth factor (VEGF) in human hepatocellular carcinoma (HCC) inoculated in nude... AIM: To evaluate the effects of interferon-α-2b (IFN- α-2b) on expression of cyclooxygenase-2 (COX-2) and vascular endothelial growth factor (VEGF) in human hepatocellular carcinoma (HCC) inoculated in nude mice and to study the underlying mechanism of IFN-α- 2b against HCC growth. METHODS: Thirb/-two nude mice bearing human HCC were randomly divided into four groups (n = 8). On the 10th day after implantation of HCC cells, the mice in test groups (groups A, B and C) received IFN-α- 2b at a serial dose (10000 IU for group A, 20000 IU for group B, 40000 IU for group C sc daily) for 35 d. The mice in control group received normal saline (NS). The growth conditions of transplanted tumors were observed. Both genes and proteins of COX-2 and VEGF were detected by RT-PCR and Western blot. Apoptosis of tumor cells in nude mice was detected by TUNEL assay after treatment with IFN-α-2b. RESULTS: Tumors were significantly smaller and had a lower weight in the IFN-α-2b treatment groups than those in the control group (P 〈 0.01), and the tumor growth inhibition rate in groups A, B and C was 27.78%, 65.22% and 49.64%, respectively. The expression levels of both genes and proteins of COX-2 and VEGF were much lower in the IFN-α-2b treatment groups than in the control group (P 〈 0.01). The apoptosis index (AI) of tumor cells in the IFN-α-2b treatment groups was markedly higher than that in the control group (P 〈 0.01). Group B had a higher inhibition rate of tumor growth, a lower expression level of COX-2 and VEGF and a higher AI than groups A and C (P 〈 0.05), but there was no significant difference between groups A and C. CONCLUSION: The inhibitory effects of IFN-α-2b on implanted tumor growth and apoptosis may be associated with the down-regulation of COX-2 and VEGF expression. There is a dose-effect relationship. The medium dose of IFN-α-2b for inhibiting tumor growth is 20 000 IU/d. 展开更多
关键词 Hepatocellular carcinoma interferon-α-2b CYCLOOXYGENASE-2 Vascular endothelial growth factor Apoptosis
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Clinical Value of Vascular Endothelial Growth Factor Combined with Interferon-γ in Diagnosing Malignant Pleural Effusion and Tuberculous Pleural Effusion 被引量:6
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作者 薛克营 熊盛道 熊维宁 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2007年第5期495-497,共3页
In order to investigate the clinical value of vascular endothelial growth factor (VEGF) combined with interferon-γ (IFN-γ) in diagnosing malignant pleural effusion and tuberculous pleural effusion, 42 cases of m... In order to investigate the clinical value of vascular endothelial growth factor (VEGF) combined with interferon-γ (IFN-γ) in diagnosing malignant pleural effusion and tuberculous pleural effusion, 42 cases of malignant pleural effusion and 45 cases of tuberculous pleural effusion in Tongji Hospital, from March 2004 to May 2005, were included, The carcinoembryonic antigen (CEA), VEGF and IFN-γ levels of pleural effusion were detected by using ELISA, and adenosine deaminase (ADA) activity was determined by using enzyme kinetic analytical method. The sensitivity, specificity, accuracy and area under the curve (AUCR^ROC) of CEA and VEGF, VEGF/IFN-γ ratio, ADA and IFN-γ were measured by receiver operating characteristic curve (ROC), The results showed that CEA, VEGF levels and VEGF/IFN-γ ratio were significantly higher and the ADA and IFN-γ levels were significantly lower in malignant group than those in tuberculous group (P〈0,01), The sensitivity, specificity, accuracy and AUCR^ROC of VEGF/IFN-γ ratio (88,7%, 99,8%, 94,4%, 0.96 respectively) were higher than those of CEA (67.8%, 96.1%, 82,4%, 0.78 respectively) and VEGF (81,5%, 84,3%, 82.9%, 0.79 respectively). The sensitivity, specificity, accuracy and AUCR^ROC of IFN-γ (85.7%, 96,4%, 90.9%, 0.94 respectively) were higher than those of ADA (80,2%, 87,6%, 83.8%, 0,81 respectively). It was concluded that VEGF/IFN-γ ratio and IFN-γ could be used as valuable parameters for the differential diagnosis of malignant pleural effusion and tuberculous pleural effusion. 展开更多
关键词 vascular endothelial growth factor interferon-Γ malignant pleural effusion tuberculous pleural effusion
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IFIT1 polymorphisms predict interferon-α treatment efficiency for hepatitis B virus infection 被引量:3
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作者 Dong-Ying Xie Shi-Ming Wang +9 位作者 Jing-Min Yang Liang-Hui Wang Hong-Yan Chen Cong Huai Jia Shang Qing Mao Chun-Liang Lei Guang-Han Luo Ji Qian Da-Ru Lu 《World Journal of Gastroenterology》 SCIE CAS 2016年第44期9813-9821,共9页
AIM To investigate the association between interferoninduced protein with tetratricopeptide repeats 1(IFIT1) polymorphisms and interferon-α(IFNα) treatment efficiency among Chinese hepatitis B virus(HBV) infection p... AIM To investigate the association between interferoninduced protein with tetratricopeptide repeats 1(IFIT1) polymorphisms and interferon-α(IFNα) treatment efficiency among Chinese hepatitis B virus(HBV) infection patients.METHODS Two hundred and twenty five newly diagnosed chronichepatitis B(CHB) patients were enrolled in the study. All of these patients received IFNα treatment for a course of 48 wk, and were followed up for 24 wk after the treatment was end. Clinical information about virological response, hepatitis B e antigen(HBe Ag) seroconversion rate and combined response at the end of the treatment, as well as the sustained response by the time of following up 24 wk after the treatment, was collected. Four tag-single nucleotide polymorphisms(SNPs) of IFIT1 were selected and assessed for their association with these clinical outcomes.RESULTS At the end of the treatment, HBe Ag seroconversion was observed in 27.1% patients. Thirty-six point nine percent patients achieved virological response, and 15.6% patients exhibited combined response. Sustained response was obtained in 26.2% patients. The main HBV genotype of the study was genotype B. Patients who infected with HBV genotype B or C showed better treatment efficiency, no matter which clinical outcome was considered. Among the four SNPs assessed, rs303218(A > G) was found to be significantly associated with the end point virological response when assuming additive model [OR = 0.64(95%CI: 0.42-0.96), P = 0.032]. Patients who carried rs303218 GG genotype had a rather higher rate of achieving virological response(response rate: 52%, OR = 0.40, 95%CI: 0.18-0.91; P = 0.028) when compared to those had AA genotype(response rate: 27%). The most significant interaction was observed in patients who had relative lower baseline aspartate transaminase. No association between SNPs and HBe Ag seroconversion, combined response or sustained response was observed.CONCLUSION IFIT1 involves in the regulation of IFNα treatment for CHB and its polymorphism rs303218 can predict the end point virological response. The finding requires further validation. 展开更多
关键词 Virological response HEPATITIS B virus infection IFIT1 interferon-Α therapy POLYMORPHISM
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Effect of oxymatrine on interferon-gamma and tumor necrosis factor-alpha serum levels in an experimental rat model of autoimmune encephalomyelitis 被引量:3
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作者 Xiaobin Guo Quancheng Kan +4 位作者 Yifan Song Lin Zhu Xiang Li Haiying Hua GuangxianZhang 《Neural Regeneration Research》 SCIE CAS CSCD 2010年第10期729-734,共6页
BACKGROUND: Studies have demonstrated that experimental autoimmune encephalomyelitis (EAE) onset correlates with increased interferon-v (IFN-γ) and tumor necrosis factor-α (TNF-α) expression. Oxymatrine (OM... BACKGROUND: Studies have demonstrated that experimental autoimmune encephalomyelitis (EAE) onset correlates with increased interferon-v (IFN-γ) and tumor necrosis factor-α (TNF-α) expression. Oxymatrine (OM) has been shown to inhibit autoimmune responses, but there are no reports showing that it could prevent the development of EAE. OBJECTIVE: To observe the effect of OM on serum levels of IFN-γ and TNF-α in a rat model of EAE.DESIGN, TIME AND SETTING: A randomized, controlled, animal study was performed at the Experimental Animal Center of Henan Academy of Chinese Medicine and at the Key Disciplines Laboratory Clinical Medicine of Henan Province between July and December 2008. MATERIALS: OM was purchased from Chia-tai Tianqing Pharmaceutical, China; complete Freund's adjuvant was purchased from Sigma, USA. METHODS: Forty female Wistar rats were randomly assigned to four groups: EAE model (M), low-dose OM treatment (OM-L), high-dose OM treatment (OM-H), and normal control (N, no immunization), with 10 rats in each group. EAE was established in the M, OM-L, and OM-H groups following immunization with Guinea pig spinal cord homogenate and complete Freund's adjuvant. The M and N groups were intraperitoneally injected with normal saline (6.7 mL/kg per day), the OM-L group received an intraperitoneal injection of OM (100 mg/kg per day), and the OM-H group received OM (150 mg/kg per day). MAIN OUTCOME MEASURES: At 16 days after immunization, the degree of histopathological changes in the spinal cord was assessed by hematoxylin-eosin stanining. Enzyme-linked immunosorbent assay was used to detect serum levels of IFN-γ, and radioimmunoassay was utilized to determine serum TNF-α level. Neurological scores were measured on a daily basis according to a 0-5 scale. RESULTS: Daily injections of OM, both high and low doses, resulted in decreased neurological scores in EAE rats (P〈0.01), as well as reduced cellular infiltration in the spinal cord and decreased levels of serum IFN-γ and TNF-α (P〈 0.01). CONCLUSION: OM reduced the onset and severity of EAE, which correlated with decreased IFN-γ and TNF-α expression. 展开更多
关键词 OXYMATRINE experiment allergic encephalomyelitis interferon-Γ tumor necrosis factor-α nerve factor neural regeneration rats
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Twenty four-week peginterferon plus ribavirin after interferon-β induction for genotype 1b chronic hepatitis C 被引量:2
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作者 Hiroaki Okushin Kazuhiko Morii +1 位作者 Koichi Uesaka Shiro Yuasa 《World Journal of Hepatology》 CAS 2010年第6期226-232,共7页
AIM:To investigate the possibility of shortening the duration of peginterferon(Peg-IFN)plus ribavirin(RBV) combination therapy by incorporating interferon-β (IFN-β)induction therapy. METHODS:A one treatment arm,coho... AIM:To investigate the possibility of shortening the duration of peginterferon(Peg-IFN)plus ribavirin(RBV) combination therapy by incorporating interferon-β (IFN-β)induction therapy. METHODS:A one treatment arm,cohort prospective study was conducted on seventy one patients.The patients were Japanese adults with genotype 1b chronic hepatitis C,HCV-RNA levels of≥5.0 Log IU/mL or 100 KIU/mL,and platelet counts of≥90 000/μL.The treatment regimen consisted of a 2 wk course of twicedaily administration of IFN-βfollowed by 24 wk PegIFN plus RBV combination therapy.We prolonged the duration of the Peg-IFN plus RBV therapy to 48 wk if the patient requested it. RESULTS:The patients,including 44%males,were characterized by an median age of 63 years(range: 32-78 years),an median platelet count of 13.9(range: 9.1-30.6)×10 4 /μL,62%IFN-na?ve,and median HCV- RNA of 6.1(range:5.1-7.2)Log IU/mL.The sustained virologic response(SVR)rates were 34%(Peg-IFN:1-24 wk,n=61,95%confidence interval(CI): 24%-47%)and 55%(Peg-IFN:20-24 wk,n=31,95% CI:38%-71%,P<0.001;vs Peg-IFN:1-19 wk).TheSVR rate when the administration was discontinued early was 13%(Peg-IFN:1-19 wk,n=30,95%CI: 5%-30%),and that when the administration was prolonged was 50%(Peg-IFN:25-48 wk,n=10,95% CI:24%-76%,P<0.05;vs Peg-IFN:1-19 wk).In the patients who received 20-24 wk of Peg-IFN plus RBV,only the higher platelet count(≥130 000/μL) was significantly correlated with the SVR(odds ratio: 11.680,95%CI:2.3064-79.474,P=0.0024).In 45% (14/31)of the patients with a higher platelet count (≥130000/μL)before therapy,the HCV-RNA level decreased to below 3.3 Log IU/mL at the completion of IFN-β,and their SVR rate was 93%(13/14)after 20-24 wk administration of Peg-IFN plus RBV. CONCLUSION:These results suggest the possibilities of shortening the duration of Peg-IFN plus RBV combination therapy by actively reducing HCV-RNA levels using the IFN-βinduction regimen. 展开更多
关键词 PEGINTERFERON RIBAVIRIN interferon-Β INDUCTION THERAPY Short-term THERAPY Chronic hepatitis C GENOTYPE 1b
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Interferon-γ: Promising therapeutic target in atherosclerosis 被引量:8
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作者 Joe WE Moss Dipak P Ramji 《World Journal of Experimental Medicine》 2015年第3期154-159,共6页
Atherosclerosis is a chronic inflammatory disorder of the vasculature and is the primary cause of cardiovascular disease(CVD). CVD is currently the world's leading cause of death and the numbers are predicted to r... Atherosclerosis is a chronic inflammatory disorder of the vasculature and is the primary cause of cardiovascular disease(CVD). CVD is currently the world's leading cause of death and the numbers are predicted to rise further because of a global increase in risk factors such as diabetes and obesity. Current therapies such as statins have had a major impact in reducing mortality from CVD. However, there is a marked residual CVD risk in patients on statin therapy. It is therefore important to understand the molecular basis of this disease in detail and to develop alternative novel therapeutics. Interferon-γ(IFN-γ) is a pro-inflammatory cytokine that is often regarded as a master regulator of atherosclerosis development. IFN-γ is able to influence several key steps during atherosclerosis development, including pro-inflammatory gene expression, the recruitment of monocytes from the blood to the activated arterial endothelium and plaque stability. This central role of IFN-γ makes it a promising therapeutic target. The purpose of this editorial is to describe the key role IFN-γ plays during atherosclerosis development, as well as discuss potential strategies to target it therapeutically. 展开更多
关键词 ATHEROSCLEROSIS interferon-Γ INFLAMMATION NEUTRALIZATION MICRORNA
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Interferon-α induced severe thrombocytopenia:A case report and review of the literature 被引量:3
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作者 Li Li,Da-Kang Han,Jun Lu,Tumor Biotherapy Ward of Beijing Youan Hospital,Capital Medical University,Beijing 100069,China 《World Journal of Gastroenterology》 SCIE CAS CSCD 2010年第11期1414-1417,共4页
We report a case of severe thrombocytopenia following pegylated interferon-α 2a(Peg-IFN-α 2a)treatment of hepatitis C virus infection and summarize the clinical characteristics of 16 cases of IFN-α induced severe t... We report a case of severe thrombocytopenia following pegylated interferon-α 2a(Peg-IFN-α 2a)treatment of hepatitis C virus infection and summarize the clinical characteristics of 16 cases of IFN-α induced severe thrombocytopenia and its immune-mediated mechanism.Discontinuation of IFN-α and early administration of immunosuppressants are the effective therapy for IFN-αinduced severe thrombocytopenia. 展开更多
关键词 interferon-Α Severe thrombocytopenia Chronic hepatitis C
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