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Advances in immunopathogenesis of adult immune thrombocytopenia
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《医学前沿(英文)》 2013年 第7卷 第4期 页码 418-424 doi: 10.1007/s11684-013-0297-8
Primary immune thrombocytopenia (ITP) is an autoimmune disorder characterized by immune-mediated accelerated platelet destruction and/or suppressed platelet production. Although the development of autoantibodies against platelet glycoproteins remains central in the pathophysiology of ITP, several abnormalities involving the cellular mechanisms of immune modulation have been identified, and the pathways behind the immune-mediated destruction of platelets have opened new avenues for the design of specific immunotherapies in an attempt to reduce the platelet destruction. This review is primarily focused on the recent literature with respect to immunopathological mechanisms in patients with ITP.
关键词: primary immune thrombocytopenia B lymphocytes T lymphocytes antigen-presenting cells cytokines
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《医学前沿(英文)》 2018年 第12卷 第3期 页码 324-329 doi: 10.1007/s11684-017-0558-z
Splenic lymphoma with villous lymphocytes (SLVL) or splenic marginal zone lymphoma with circulating villous lymphocytes is rare, and prolymphocytic transformation of SLVL is rarer. At present, only one case of SLVL with t(8;14)(q24;q32) translocation has been reported. In this study, we report a case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) chromosome translocation that we inclined to SLVL with a prolymphocytic transformation. A 73-year-old female showed marked hepatosplenomegaly and high lymphocytosis (lymphocytes>200×109/L). The abnormal lymphocytes had short coarse villi and round nuclei with prominent nucleoli. The immunophenotypes showed CD19+, CD20+, HLA-DR+, CD22+, CD5+, Kappa+, CD25dim, CD71dim, Lambda−, CD7−, CD10−, CD23−, CD34−, CD33−, CD13−, CD14−, CD117−, CD64−, CD103−, and CD11c−. The karyotype showed complex abnormality: 46XX,+3,−10, t(8;14)(q24;q32)[11]/46XX[9]. The cytoplasmic projection, immunological characteristics, and trisomy 3 chromosome abnormality supported the diagnosis of SLVL. However, the presence of prominent nucleoli and high lymphocytosis suggested prolymphocytic transformation, probably as a result of t(8,14) chromosome translocation. In this report, we described an unusual case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation, which could provide help in the diagnosis and differential diagnosis of B-lymphocytic proliferative diseases.
关键词: splenic lymphoma with villous lymphocytes splenic marginal zone lymphoma transformation chromosome translocation
Tim-3 mRNA expression in peripheral blood lymphocytes from asthmatic patients
Xiaoxia LU, Weikun HU, Shengdao XIONG, Guopeng XU, Fen LAN
《医学前沿(英文)》 2009年 第3卷 第2期 页码 187-190 doi: 10.1007/s11684-009-0033-6
关键词: asthma airway inflammation peripheral blood lymphocyte Tim-3
供体来源的CD19靶向T细胞输注可以消除异基因造血干细胞移植后对供者淋巴细胞无反应的急性B淋巴细胞白血病微小残留病 Article
程翼飞, 陈育红, 闫晨华, 王昱, 赵翔宇, 陈瑶, 韩伟, 许兰平, 张晓辉, 刘开彦, 王莎莎, 张隆基, 肖磊, 黄晓军
《工程(英文)》 2019年 第5卷 第1期 页码 150-155 doi: 10.1016/j.eng.2018.12.006
Deubiquitinases as pivotal regulators of T cell functions
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《医学前沿(英文)》 2018年 第12卷 第4期 页码 451-462 doi: 10.1007/s11684-018-0651-y
T cells efficiently respond to foreign antigens to mediate immune responses against infections but are tolerant to self-tissues. Defect in T cell activation is associated with severe immune deficiencies, whereas aberrant T cell activation contributes to the pathogenesis of diverse autoimmune and inflammatory diseases. An emerging mechanism that regulates T cell activation and tolerance is ubiquitination, a reversible process of protein modification that is counter-regulated by ubiquitinating enzymes and deubiquitinases (DUBs). DUBs are isopeptidases that cleave polyubiquitin chains and remove ubiquitin from target proteins, thereby controlling the magnitude and duration of ubiquitin signaling. It is now well recognized that DUBs are crucial regulators of T cell responses and serve as potential therapeutic targets for manipulating immune responses in the treatment of immunological disorders and cancer. This review will discuss the recent progresses regarding the functions of DUBs in T cells.
关键词: deubiquitinase ubiquitination T cell activation T cell differentiation T cell tolerance
Regulation of T cell immunity by cellular metabolism
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《医学前沿(英文)》 2018年 第12卷 第4期 页码 463-472 doi: 10.1007/s11684-018-0668-2
T cells are an important adaptive immune response arm that mediates cell-mediated immunity. T cell metabolism plays a central role in T cell activation, proliferation, differentiation, and effector function. Specific metabolic programs are tightly controlled to mediate T cell immune responses, and alterations in T cell metabolism may result in many immunological disorders. In this review, we will summarize the main T cell metabolic pathways and the important factors participating in T cell metabolic programming during T cell homeostasis, differentiation, and function.
关键词: T cell immunity metabolic pathways nutrient uptake metabolic checkpoints
Separation and extraction of bridge dynamic strain data
Baijian WU, Zhaoxia LI, Ying WANG, T. H. T. CHAN,
《结构与土木工程前沿(英文)》 2009年 第3卷 第4期 页码 395-400 doi: 10.1007/s11709-009-0049-7
关键词: dynamic valuable separatrix strain/stress amplitude frequency
Carcinogens that induce the A:T>T:A nucleotide substitutions in the genome
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《医学前沿(英文)》 2018年 第12卷 第2期 页码 236-238 doi: 10.1007/s11684-017-0611-y
Recently, Ng . reported that the A:T>T:A substitutions, proposed to be a signature of aristolochic acid (AA) exposure, were detected in 76/98 (78%) of patients with hepatocellular carcinoma (HCC) from the Taiwan Province of China, and 47% to 1.7% of HCCs from the Chinese mainland and other countries harbored the nucleotide changes. However, other carcinogens, e.g., tobacco carcinogens 4-aminobiphenyl and 1,3-butadiene, air toxic vinyl chloride and its reactive metabolites chloroethylene oxide, melphalan and chlorambucil, also cause this signature in the genome. Since tobacco smoke is a worldwide public health threat and vinyl chloride distributes globally and is an air pollutant in Taiwan Province, the estimation of the patients’ exposure history is the key to determine the “culprit” of the A:T>T:A mutations. Apparently, without estimation of the patients’ exposure history, the conclusion of Ng is unpersuasive and misleading.
关键词: genomic signature carcinogen aristolochic acid tobacco smoke vinyl chloride hepatocellular carcinoma
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《医学前沿(英文)》 2018年 第12卷 第3期 页码 262-268 doi: 10.1007/s11684-017-0584-x
γδ T cells display unique developmental, distributional, and functional patterns and can rapidly respond to various insults and contribute to diverse diseases. Different subtypes of γδ T cells are produced in the thymus prior to their migration to peripheral tissues. γδ T cells are enriched in the liver and exhibit liver-specific features. Accumulating evidence reveals that γδ T cells play important roles in liver infection, non-alcoholic fatty liver disease, autoimmune hepatitis, liver fibrosis and cirrhosis, and liver cancer and regeneration. In this study, we review the properties of hepatic γδ T cells and summarize the roles of γδ T cells in liver diseases. We believe that determining the properties and functions of γδ T cells in liver diseases enhances our understanding of the pathogenesis of liver diseases and is useful for the design of novel γδ T cell-based therapeutic regimens for liver diseases.
关键词: γδT cells liver infection non-alcoholic fatty liver disease autoimmune hepatitis liver fibrosis and cirrhosis liver cancer liver regeneration
High-affinity T cell receptors redirect cytokine-activated T cells (CAT) to kill cancer cells
Synat Kang, Yanyan Li, Yifeng Bao, Yi Li
《医学前沿(英文)》 2019年 第13卷 第1期 页码 69-82 doi: 10.1007/s11684-018-0677-1
Cytokine-activated T cells (CATs) can be easily expanded and are widely applied to cancer immunotherapy. However, the good efficacy of CATs is rarely reported in clinical applications because CATs have no or very low antigen specificity. The low-efficacy problem can be resolved using T cell antigen receptor-engineered CAT (TCR-CAT). Herein, we demonstrate that NY-ESO-1157–165 HLA-A*02:01-specific high-affinity TCR (HAT)-transduced CATs can specifically kill cancer cells with good efficacy. With low micromolar range dissociation equilibrium constants, HAT-transduced CATs showed good specificity with no off-target killing. Furthermore, the high-affinity TCR-CATs delivered significantly better activation and cytotoxicity than the equivalent TCR-engineered T cells (TCR-Ts) in terms of interferon-g and granzyme B production and in vitro cancer cell killing ability. TCR-CAT may be a very good alternative to the expensive TCR-T, which is considered an effective personalized cyto-immunotherapy.
关键词: cytokine-activated T cells high-affinity T cell receptor cancer immunotherapy TCR-CAT
Ian T. RILEY
《农业科学与工程前沿(英文)》 2021年 第8卷 第4期 页码 568-582 doi: 10.15302/J-FASE-2019270
关键词: actinorrhizal trees agroforestry climate change ecosystem restoration
CAR T-cell immunotherapy: a powerful weapon for fighting hematological B-cell malignancies
《医学前沿(英文)》 2021年 第15卷 第6期 页码 783-804 doi: 10.1007/s11684-021-0904-z
Chimeric antigen receptor T cell therapies for acute myeloid leukemia
Bin Gu, Jianhong Chu, Depei Wu
《医学前沿(英文)》 2020年 第14卷 第6期 页码 701-710 doi: 10.1007/s11684-020-0763-z
Innate and adaptive T cells in influenza disease
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《医学前沿(英文)》 2018年 第12卷 第1期 页码 34-47 doi: 10.1007/s11684-017-0606-8
Influenza is a major global health problem, causing infections of the respiratory tract, often leading to acute pneumonia, life-threatening complications and even deaths. Over the last seven decades, vaccination strategies have been utilized to protect people from complications of influenza, especially groups at high risk of severe disease. While current vaccination regimens elicit strain-specific antibody responses, they fail to generate cross-protection against seasonal, pandemic and avian viruses. Moreover, vaccines designed to generate influenza-specific T-cell responses are yet to be optimized. During natural infection, viral replication is initially controlled by innate immunity before adaptive immune responses (T cells and antibody-producing B cells) achieve viral clearance and host recovery. Adaptive T and B cells maintain immunological memory and provide protection against subsequent infections with related influenza viruses. Recent studies also shed light on the role of innate T-cells (MAIT cells, gd T cells, and NKT cells) in controlling influenza and linking innate and adaptive immune mechanisms, thus making them attractive targets for vaccination strategies. We summarize the current knowledge on influenza-specific innate MAIT and gd T cells as well as adaptive CD8+ and CD4+ T cells, and discuss how these responses can be harnessed by novel vaccine strategies to elicit cross-protective immunity against different influenza strains and subtypes.
关键词: influenza innate T cells CD4+ and CD8+ T cells vaccination
Treating wastewater under zero waste principle using wetland mesocosms
Ezzat, Mohammed T. Mohammed T.
《环境科学与工程前沿(英文)》 2021年 第15卷 第4期 doi: 10.1007/s11783-020-1351-9
关键词: Wastewater dynamic roughing filter Cyperus papyrus (L.) zeolite zero waste
标题 作者 时间 类型 操作
A rare case of B-lymphoproliferative disorder with villous lymphocytes harboring t(8;14)(q24;q32) translocation
null
期刊论文
Tim-3 mRNA expression in peripheral blood lymphocytes from asthmatic patients
Xiaoxia LU, Weikun HU, Shengdao XIONG, Guopeng XU, Fen LAN
期刊论文
供体来源的CD19靶向T细胞输注可以消除异基因造血干细胞移植后对供者淋巴细胞无反应的急性B淋巴细胞白血病微小残留病
程翼飞, 陈育红, 闫晨华, 王昱, 赵翔宇, 陈瑶, 韩伟, 许兰平, 张晓辉, 刘开彦, 王莎莎, 张隆基, 肖磊, 黄晓军
期刊论文
Separation and extraction of bridge dynamic strain data
Baijian WU, Zhaoxia LI, Ying WANG, T. H. T. CHAN,
期刊论文
High-affinity T cell receptors redirect cytokine-activated T cells (CAT) to kill cancer cells
Synat Kang, Yanyan Li, Yifeng Bao, Yi Li
期刊论文
Chimeric antigen receptor T cell therapies for acute myeloid leukemia
Bin Gu, Jianhong Chu, Depei Wu
期刊论文