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Advances in cell sources of hepatocytes for bioartificial liver

Hepatobiliary & Pancreatic diseases International 2012年第6期11卷 594-605页

作者： Xiao-Ping Pan , Lan-Juan Li State Key Laboratory for Diagnosis and Treatment of infectious diseases, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003, China State Key Laboratory for Diagnosis and Treatment of infectious diseases First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China

BACKGROUND: Orthotopic liver transplantation (OLT) is the most effective therapy for liver failure. However, OLT is severely limited by the shortage of liver donors. Bioartificial liver (BAL) shows great potential as an alternative therapy for liver failure In recent years, progress has been made in BAL regarding genetically engineered cell lines, immortalized human hepatocytes, methods for preserving the phenotype of primary human hepatocytes, and other functional hepatocytes derived from stem cells. DATA SOURCES: A systematic search of PubMed and ISI Web of Science was performed to identify relevant studies in English language literature using the Key words such as liver failure bioartificial liver, hepatocyte, stem cells, differentiation, and immortalization. More than 200 articles related to the cell sources of hepatocyte in BAL were systematically reviewed. RESULTS: Methods for preserving the phenotype of primary human hepatocytes have been successfully developed. Many genetically engineered cell lines and immortalized human hepatocytes have also been established. Among these cell lines the incorporation of BAL with GS-HepG2 cells or alginate encapsulated HepG2 cells could prolong the survival time and improve pathophysiological parameters in an animal model of liver failure. The cBAL111 cells were evaluated using the AMC-BAL bioreactor, which could eliminate ammonia and lidocaine, and produce albumin. Importantly, BAL loading with HepLi-4 cells could significantly improve the blood biochemical parameters, and prolong the survival time in pigs with liver failure. Other functional hepatocytes differentiated from stem cells, such as human liver progenitor cells, have been successfully achieved. CONCLUSIONS: Aside from genetically modified liver cell lines and immortalized human hepatocytes, other functionalhepatocytes derived from stem cells show great potential as cell sources for BAL. BAL with safe and effective liver cells may be achieved for clinical liver fa

关键词： bioartificial liver liver failure hepatocyte liver cell source stem cell differentiation immortalization

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Care of HIV-infected patients in China

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Cell research 2005年第Z1期 883-890页

作者： Yun Zhen CAO 1,*, Hong Zhou LU 2 1The AIDS research center, Chinese Academy of Medical Sciences Peking Union Medical College, Beijing 100730, China 2Department of infectious diseases, Shanghai/FuDan Public Health center & Huashan Hospital, Fudan University, Shang- hai 201508, China

Compared with high infection areas of the world, the total HIV infection rate in China is relatively low. Nonetheless, because of China’s vast territory and large population, the potential infection risk must be taken seriously. In the next few years, needle sharing among injection drug users will remain the most common route of transmission for the HIV/ AIDS epidemic in China. Unprotected sex is gradually becoming a major route of transmission. China began to imple- ment HAART in 1999 according to international standards. Prior to 2003, there were only about 150 HIV/AIDS patients were treated with HAART in some clinical trials and about 100 HIV/AIDS patients were treated by private sources. Results of those treatments are the scientific basis for development of the therapeutic strategies in China. In March of 2003, the Chinese government initiated China CARES program. In November of 2003, the Chinese Ministry of Health announced a national policy of free ARV treatment to all HIV+ Chinese citizens who were in poverty and required ARV therapy. There are total of 19,456 HIV/AIDS patients received free ARV drugs to date in 159 regions and 441 towns. Current challenges are how to follow-up and evaluate those patients in the clinical settings. The longer the therapy is postponed, the more side effects and the higher probability of drug resistance are going to occur. It remains unclear, therefore, when HAART regimen should be started in the HIV/AIDS population in China.

关键词： HIV/AIDS needle sharing unprotected sex HAART China CARES program.

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Interpretation Criteria for Standardized Western Blot for the Predominant Species of Borrelia Burgdorferi Sensu Lato in China

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Biomedical and Environmental Sciences 2010年第5期23卷 341-349页

作者： YI JIANG XUE-XIA HOU ZHEN GENG QIN HAO KANG-LIN WAN State Key Laboratory for infectious diseases Prevention and Control national Institute of Communicable Disease Control & Prevention Chinese Center of Disease Control & Prevention Beijing 102206 China

Objective Western blotting （WB;immunoblotting） is a widely used tool for the serodiagnosis of Lyme borreliosis （LB）,but so far,no generally accepted criteria for its performance and interpretation have been established in *** present study was designed to determine the criteria for standardized Western blot for the predominant species of Borrelia burgdorferi sensu lato in China,in which WB was produced with strain PD91 as the representative strain attributed to predominant genospecies Borrelia garinii of Borrelia burgdorferi sensu *** Approximately 13 bands between 14 and 100 kD were differentiated for strain PD91 by using Gel-Pro analysis *** a study with 631 serum samples （taken from 127 patients with Lyme borreliosis and 504 controls）,all observed bands were *** establish criteria for a positive WB result for strain PD91,receiver operating characteristic （ROC） curves were *** The following interpretation criteria were recommended：for IgG,at least one band of P83/100,P58,P39,P30,OspC,P17,P66,and OspA;for IgM,at least one band of P83/100,P58,OspA,P30,OspC,P17 or *** addition,syphilis,leptospirosis and other related diseases should be excluded when the positive band is P41 in *** IgG criteria,the sensitivity is 73.2%,the specificity is 99.4% and Youden index is 0.726;for IgM criteria,the sensitivity is 50.6%,the specificity is 93.1% and Youden index is *** Standardization of WB assays is necessary for comparison of results from different ***,the criteria of other genospecies of Borrelia burgdorferi sensu lato should be determined in the future to complete the criteria of WB for the diagnosis of the Lyme disease in China.

关键词： Criteria Western blot Borrelia burgdorferi sensu lato

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中国大动脉炎诊疗指南(2023)

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中华内科杂志 2024年第2期63卷 132-152页

作者：国家皮肤与免疫疾病临床医学研究中心(北京协和医院) 中国医师协会风湿免疫专科医师分会血管炎学组海峡两岸医药卫生交流协会风湿免疫病学专业委员会血管炎学组中国康复医学会风湿免疫病康复专业委员会田新平曾小峰不详中国医学科学院、北京协和医学院、北京协和医院风湿免疫科北京100730 中国医学科学院、北京协和医学院、国家皮肤与免疫疾病临床医学研究中心、疑难重症及罕见病国家重点实验室、风湿免疫病学教育部重点实验室北京100730

大动脉炎(TAK)是一种累及主动脉及其一级分支动脉的系统性血管炎,可导致受累动脉管壁增厚、管腔狭窄或动脉瘤形成,造成所供应脏器的缺血改变。临床诊治极具挑战性。为提高TAK的诊疗水平,规范我国TAK的诊治,由国家皮肤与免疫疾病临床医... 详细信息

大动脉炎(TAK)是一种累及主动脉及其一级分支动脉的系统性血管炎,可导致受累动脉管壁增厚、管腔狭窄或动脉瘤形成,造成所供应脏器的缺血改变。临床诊治极具挑战性。为提高TAK的诊疗水平,规范我国TAK的诊治,由国家皮肤与免疫疾病临床医学研究中心牵头,基于循证医学证据制定了以临床问题为导向的我国TAK诊疗指南,共对11个TAK诊治中的重要临床问题,基于最新的研究证据及专家意见,结合我国临床实际,给出推荐和建议,旨在指导临床实践。

关键词：大动脉炎诊断治疗指南

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Expression of Hepatitis C Virus E2 Ectodomain in *** and Its Application in the Detection of Anti-E2 Antibodies in Human Sera

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Acta Biochimica et Biophysica Sinica 2004年第1期36卷 57-63页

作者： Jing LIU, Xin-Xin ZHANG, Shen-Ying ZHANG, Min LU, Yu-Ying KONG, Yuan WANG, and Guang-Di LI ( State Key Laboratory of Molecular Biology, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, the Chinese Academy of Sciences, Shanghai 200031, China 2 Department of infectious diseases, Ruijin Hospital, Second Medical University of Shanghai, Shanghai 200025, China ) State Key Laboratory of Molecular Biology Institute of Biochemistry and Cell Biology Shanghai Institutes for Biological Sciences the Chinese Academy of Sciences Shanghai 200031 China Department of infectious diseases Ruijin Hospital Second Medical University of Shanghai Shanghai 200025 China

The second envelope glycoprotein （E2） of hepatitis C virus has been shown to bind human target cells and has become a major target for the development of anti-HCV vaccines. Anti-E2 antibodies have been suggested to be of clinical significance in diagnosis, treatment and prognosis of hepatitis C. However, large-scale expression and purification of E2 proteins in mammalian cells is difficult. As an alternative, E2 fragment （aa 385-730） with a four-amino-acid mutation （aa 568-571 PCNI to RVTS） was expressed as hexa-histidine-tagged full length protein [E2N730（m）] in E. coli and purified to over 85% purity. Purified E2N730（m） was specifically recognized by homologous hepatitis C patient serum in Western blot, suggesting that it displayed E2specific antigenicity. Rabbit antiserum raised against E2N730（m） recognized E2 glyco-proteins expressed in mammalian cells in Western blot. Purified E2N730（m） was used to detect anti-E2 antibodies in human sera and showed better specificity and sensitivity than previousl

关键词： hepatitis C virus envelope protein E2 expression and purification Escherichia coll

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儿童经内镜逆行胰胆管造影术临床应用管理规范专家共识(2024)

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中华儿科杂志 2024年第5期62卷 396-401页

作者：中华医学会儿科学分会消化学组国家儿童健康与疾病临床医学研究中心儿童消化疾病诊治协同创新联盟中华儿科杂志编辑委员会江米足邓朝晖不详浙江大学医学院附属儿童医院消化科和儿童内镜中心国家儿童健康与疾病临床医学研究中心国家儿童区域医疗中心杭州310052 国家儿童医学中心上海交通大学医学院附属上海儿童医学中心消化科上海200127

经内镜逆行胰胆管造影术(ERCP)逐步成为儿童胆胰疾病的重要诊治手段。我国儿童ERCP临床应用尚处于起步阶段,临床经验有待于进一步积累,应用技术需要进一步规范。中华医学会儿科学分会消化学组、国家儿童健康与疾病临床医学研究中心儿童... 详细信息

经内镜逆行胰胆管造影术(ERCP)逐步成为儿童胆胰疾病的重要诊治手段。我国儿童ERCP临床应用尚处于起步阶段,临床经验有待于进一步积累,应用技术需要进一步规范。中华医学会儿科学分会消化学组、国家儿童健康与疾病临床医学研究中心儿童消化疾病诊治协同创新联盟及中华儿科杂志编辑委员会牵头组织相关专家制订了“儿童经内镜逆行胰胆管造影术临床应用管理规范专家共识(2024)”,旨在规范儿童ERCP的临床应用和技术推广,减少或避免并发症,提高儿童胆胰疾病的诊疗水平。

关键词：经内镜逆行胰胆管造影术中华儿科杂志中华医学会临床应用管理胆胰疾病健康与疾病临床医学研究协同创新联盟

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Association of cytomegalovirus infection with human leukocyte antigen genotypes in recipients after allogeneic liver transplantation

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Hepatobiliary & Pancreatic diseases International 2006年第1期5卷 34-38页

作者： Jun Fan, Xue-Qin Meng, Mei-Fang Yang, Lin Zhou, Xiao-Ming Chen, Min-Jun Hu, Wei-Wei Fan, Wei-Hang Ma and Lan-Juan Li Key Laboratory of Viral infectious diseases, Ministry of Public Health, Institute of infectious diseases Organ Transplantation center First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310003. China Key Laboratory of Viral infectious diseases Ministry of Public Health Institute of Infectious Diseases First Affiliated Hospital Zhejiang University School of Medicine Hangzhou 310003 China. fanjunyz@***

BACKGROUND: Cytomegalovirus (CMV) infection is the important cause affecting the survival rate and function of the transplanted organ after transplantation. The occurrence of CMV infection after liver transplantation (LT) is associated with many factors. Lots of studies suggest that genetic mutation between hosts and CMV may play a role in the occurrence and development of CMV infection. CMV exists in an incubative state, affect or destroy the expression of human leukocyte antigen (HLA) molecules in the host cell surface, and interfere antigen's submission. This mechanism is the key of CMV to avoid immune defense mechanism of the host. To detect HLA and CMV antibody (CMV-Ab), CMV antigen (CMV-Ag) of transplantation recipients, we evaluated the association of CMV infection and the particular HLA genotypes in recipients after LT. METHODS: 277 blood samples were collected from 39 LT recipients. CMV antibody and antigen were detected by ELISA or immunohistochemical methods. The HLA types of the recipients were determined by PCR. To analyze the association of HLA alleles and the occurrence of CMV antigenemia in the patients, relative risk degree (RR) was used as the parameter for the Chi-square test. RESULTS: The LT recipients were serum CMV IgG positive (100%), but none of them was CMV IgM positive (0%). Thirty-three LT recipients (84.6%) were CMV antigenic positive with 1-50 positive leukocytes per 50000 leukocytes in extent and 7.2±4.2 positive leukocytes per 50000 leukocytes on average. Thirteen patients developed CMV pneumonia, with CMV antigenic positive (100%) and 17.7±5.5 positive leukocytes per 50000 leukocytes on average. Some HIA alleles were associated with the occurrence and extent of CMV antigenemia. HLA-A2 was the higher frequency allele for patients with antigenemia (P<0.05), and 7 patients carrying HLA-DR11 allele developed antigenemia (P<0.05). In the lower antigenemia group, HLA-A11 was higher in frequency than others (P<0.05). Besides, none of the pat

关键词： cytomegalovirus human leukocyte antigen liver transplantation cytomegalovirus antigen

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肝内胆汁淤积症诊治专家共识(2021年版)

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中华肝脏病杂志 2022年第2期30卷 137-146页

作者：国家感染性疾病临床医学研究中心李兰娟陈燕飞黄建荣不详浙江大学医学院附属第一医院杭州310003

肝内胆汁淤积症是指由于肝实质细胞和/或肝内胆管疾病引起胆汁合成缺陷、排泌异常,以及胆管中胆汁流动的机械性或功能性障碍,继而使得胆汁成分入血所致的临床症候群,常见于胆汁淤积性肝病、妊娠期肝内胆汁淤积症以及遗传代谢相关胆汁淤... 详细信息

肝内胆汁淤积症是指由于肝实质细胞和/或肝内胆管疾病引起胆汁合成缺陷、排泌异常,以及胆管中胆汁流动的机械性或功能性障碍,继而使得胆汁成分入血所致的临床症候群,常见于胆汁淤积性肝病、妊娠期肝内胆汁淤积症以及遗传代谢相关胆汁淤积等。近年来肝内胆汁淤积症的诊治资料有了进一步积累,为将更新的诊疗依据提供给广大肝病医务工作者,特组织专家在2015年《肝内胆汁淤积症诊治专家共识》基础上进行共识更新,旨在为临床肝内胆汁淤积症诊治提供参考和指导。

关键词：肝病肝内胆汁淤积诊断治疗

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HIV-specific CD8^+ T cell responses to HXB2 Gag and Nef peptide pools in Chinese HIV/AIDS patients

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Science China(Life Sciences) 2009年第9期52卷 841-846页

作者： ZHANG HongWei,QIU ZhiFeng,JIAO Yang,WANG AiXia & LI TaiSheng Department of infectious diseases,Peking Union Medical College Hospital,Chinese Academy of Medical Sciences,Beijing 100730,China Department of infectious diseases Peking Union Medical College Hospital Chinese Academy of Medical Sciences Beijing China

HXB2 is primarily used as a template strain in developing HIV vaccines in Europe and the US. However,it is not yet known whether the strain can induce strong HIV-specific CD8+ T cell responses in Chinese HIV/AIDS patients. In the present study,two groups of subjects were investigated:9 AIDS patients and 7 long-term nonprogressors (LTNPs). HIV-specific CD8+ T cell responses were examined in all patients through the ELISPOT assay. CD4+ T cell counts,CD8+ T cell counts,viral load and HIV subtype of each patient were also measured. Thailand B virus strain was identified among all the patients. The breadth and magnitude of HIV-specific CD8+ T cell responses in the LTNPs group are greater than those in the AIDS group (P<0.01). There is a positive correlation between magnitude of HIV-specific CD8+ T cell responses and CD4+ T cells,and a negative correlation between HIV-specific CD8+ T cell responses and mean viral load. In summary,the HIV-specific CD8+ T cell responses to the HXB2 Gag and Nef peptide pools are considerable in Chinese HIV/AIDS patients infected with Thailand B virus strain. HIV-1 vaccines based on HXB2 strain that can induce extensive immunity may be helpful for Chinese.

关键词： HIV/AIDS CD8+ T cells ELISPOT assay

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花粉-食物过敏综合征诊断及管理专家共识

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中华预防医学杂志 2024年第6期58卷 719-734页

作者：中华医学会变态反应学分会过敏原特异性诊断学组福棠儿童医学发展研究中心过敏(变态)反应学科规范化建设研究组北京慢性病防治与健康教育研究会变态反应学专业委员会中国老年保健协会过敏性疾病分会关凯向莉姜楠楠李丽莎不详中国医学科学院北京协和医学院北京协和医院变态(过敏)反应科过敏性疾病精准诊疗研究北京市重点实验室国家皮肤与免疫疾病临床医学研究中心北京100730 国家儿童医学中心首都医科大学附属北京儿童医院过敏反应科儿童重大疾病研究教育部重点实验室国家呼吸系统疾病临床医学研究中心北京100045

花粉-食物过敏综合征(pollen-food allergy syndrome,PFAS)是发生在花粉过敏个体的食物过敏反应。近年来,花粉过敏发病率逐年升高且呈现低龄化趋势,PFAS在国内也逐渐受到关注。PFAS的临床特征具有明显的地域差异及异质性。目前,国内对P... 详细信息

花粉-食物过敏综合征(pollen-food allergy syndrome,PFAS)是发生在花粉过敏个体的食物过敏反应。近年来,花粉过敏发病率逐年升高且呈现低龄化趋势,PFAS在国内也逐渐受到关注。PFAS的临床特征具有明显的地域差异及异质性。目前,国内对PFAS诊断手段有限,认识不足,尚无可供临床使用的诊断标准。与原发性食物过敏的管理有所不同,PFAS管理需要同时兼顾花粉过敏和食物过敏,管理具有特殊性和复杂性,医生在临床实践中管理存在差异。本共识基于目前国内外现有的指南和我国相关研究证据,制定了诊断标准和管理流程图,旨在规范我国PFAS诊治流程,提高诊疗水平,指导变态反应科医师、相关专业医师和全科医师正确认识、诊断及规范管理PFAS。

关键词：食物过敏花粉过敏专家共识花粉-食物过敏综合征口腔过敏综合征

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