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Allo-HLA reactivity of virus-specific memory T cells is common
Allo-HLA reactivity of virus-specific memory T cells is common

... After informed consent was given in accordance with the Declaration of Helsinki, peripheral blood (PB) was obtained from different persons. All experiments were approved by the Leiden University Medical Center ethics committee. Mononuclear cells (MNCs) were isolated by Ficoll-Isopaque separation and ...
PDF - Theranostics
PDF - Theranostics

... most successful of the current generation of clinical vectors, with highly promising Phase I and Phase II clinical data being reported in melanoma[42] and HCC[33], and with systemic delivery demonstrated in the clinic[32]; (iii) vaccinia’s large genome means that a variety of different oncolytic con ...
Fungal Keratitis
Fungal Keratitis

... • ii. Injury by animal tail is another mode of infection. • iii. Patients who are immunosuppressed systemically or locally such as patients suffering from dry eye, herpetic keratitis, bullous keratopathy or postoperative cases of keratoplasty. ...
A crucial role for B cells in neuroinvasive scrapie
A crucial role for B cells in neuroinvasive scrapie

... the role of T cells, we used mice with targeted disruption of the genes encoding CD4 (ref. 9), CD8 (ref. 10), b2-microglobulin11 or perforin12. Selective ablation of B lymphocytes was studied in mMT mice13, which have a targeted disruption of the transmembrane exon of the immunoglobulin m-chain gene ...
Deletion of the Zinc-Binding Motif of CD13
Deletion of the Zinc-Binding Motif of CD13

... tubules. CD13/APN exemplifies a group of cell-surface peptidases that have been found on discrete subsets of hematopoietic cells. While CD13/APN expression is restricted to myeloid progenitors and mature monocytes, macrophages, and granulocytes within the hematopoietic system, other membrane-bound p ...
Basophils, IgE, and Autoantibody-Mediated Kidney
Basophils, IgE, and Autoantibody-Mediated Kidney

... plays a crucial role in this recruitment process (50). Because IL-3 is produced primarily by activated T cells (13), Ag-induced T cell activation within local lymphoid tissues seems to be the primary underlying factor. In addition, recruitment is transient, only found between days 3 and 4 post-Ag ch ...
Direct Delivery of Antigens to Dendritic Cells via Antibodies Specific
Direct Delivery of Antigens to Dendritic Cells via Antibodies Specific

... adaptedagainst for this figure. adjuvant. By usage of antibodies directed surface molecules selectively expressed on one DC subset (here differentially colored in red, green, and blue), the type of immune response can be further regulated due to different functions of the DC subsets. Templates from ...
Initiation and Regulation of Type 2 Immunity and Inflammation at
Initiation and Regulation of Type 2 Immunity and Inflammation at

... gastrointestinal tract utilizing infection with the helminth Trichuris muris. By genetic restriction of MHC class II expression to CD11c+ DCs we demonstrate that, in contrast to Th1-cytokine-mediated immunity, antigen presentation by CD11c+ cells is insufficient to generate protective type 2 immune ...
NIH Executive Summary of Stem Cell Issues
NIH Executive Summary of Stem Cell Issues

... to explore human pluripotent stem cells from embryos and fetal tissue, a flurry of new information was emerging about a class of stem cells that have been in clinical use for years—so-called adult stem cells. An adult stem cell is an undifferentiated cell that is found in a differentiated (specializ ...
Virus-Bacteria Interactions: An Emerging Topic in Human Infection
Virus-Bacteria Interactions: An Emerging Topic in Human Infection

... facilitating the disease process [8]. Under in vitro conditions, viruses may be able to directly bind to their target cell type and undergo replication with ease. However, this strategy may prove problematic in the gastrointestinal tract where a large number of bacteria occupy tissue surfaces, direc ...
UNIVERSIDAD DE MURCIA FACULTAD DE BIOLOGÍA
UNIVERSIDAD DE MURCIA FACULTAD DE BIOLOGÍA

... There is considerable interaction between Ly and phagocytes (Male and Roitt, 1996). For example, some phagocytes capture and degrade antigens and present them to T cells attached to the surface major histocompatibility complex (MHC) in a form suitable for them to recognize. This process is called an ...
Lymphatic System People often talk about swollen glands but what
Lymphatic System People often talk about swollen glands but what

... system that carries out your immune responses - fights infection and protects you from bacteria and viruses. Your lymphatic system is vital to your health. Lymph nodes are oval structures located along the length of lymphatic vessels. They range in size from 1 to 25 mm in length. Lymph nodes are sca ...
humanized antibodies - Assets - Cambridge
humanized antibodies - Assets - Cambridge

... cell-mediated lysis-triggering effector cascades whereas IgG2 and IgG4 are preferred for target neutralization. In fact, most of the humanized antibodies on the market are of the IgG1 subtype (Table 1.1). In some cases, the effector functions of the constant regions are removed by modifying the Fc s ...
The Thymus Gland
The Thymus Gland

... two lobes generally differ in size; they are occasionally united, so as to form a single mass; and sometimes separated by an intermediate lobe. The thymus is of a pinkish-gray color, soft, and lobulated on its surfaces. It is about 5 cm in length, 4 cm in breadth below, and about 6 mm in thickness. ...
Nerve activates contraction
Nerve activates contraction

...  Human cells have many surface proteins  Our immune cells do not attack our own proteins  Our cells in another person’s body can trigger an immune response because they are foreign  Restricts donors for transplants Copyright © 2003 Pearson Education, Inc. publishing as Benjamin Cummings ...
Lung interstitial macrophages alter dendritic Research article
Lung interstitial macrophages alter dendritic Research article

... results in immunological tolerance. Indeed, a subset of pulmonary myeloid DCs is able to produce the tolerogenic cytokine IL-10 after innocuous antigen uptake and, therefore, stimulate the development of antigen-specific Tregs (1, 2). Similarly, lung plasmacytoid DCs protect against aberrant immune ...
The New England Journal of Medicine Volume 336 - hem
The New England Journal of Medicine Volume 336 - hem

... cases attributable to drug use was only 15 percent (and chloramphenicol was not a risk factor).58 Although a putative inciting antigen can be implicated on the basis of a history of exposure, drug-induced hematopoietic failure is difficult to study, because it is idiosyncratic. Animal models do not ...
immunosuppressive drugs after solid organ transplantation
immunosuppressive drugs after solid organ transplantation

Classification: Biological Sciences, Plant Biology. The receptor
Classification: Biological Sciences, Plant Biology. The receptor

... Plants employ receptor kinases (RKs) and receptor-like proteins (RLPs) as pattern recognition receptors (PRRs) to sense pathogen-associated molecular patterns (PAMPs) typical of whole classes of microbes. After ligand perception, many leucine-rich repeat (LRR)-containing PRRs interact with the LRR-R ...
department of molecular biology and immunology
department of molecular biology and immunology

... and diseases caused by known pathogens have reestablished themselves. Many of these infections result in life-threatening diseases. To complicate matters, many of these infectious agents have developed resistance to antibiotics routinely used in treatments. Thus, prevention and treatment of these in ...
Regenerative Medicine Annual Report
Regenerative Medicine Annual Report

... chronic and/or life-threatening diseases are palliative. Others delay disease progression and the onset of complications associated with the underlying illness. Very few therapies in use today are capable of curing or significantly changing the course of disease. The result is a healthcare system bu ...
biomaterials ent 311/4
biomaterials ent 311/4

... Immune response evaluation is not a component of the standards currently in vivo tissue compatibility assessment. However, ASTM, ISO and FDA currently have working groups developing guidance documents for immune response evaluation. Synthetic material are not generally immunogenic However, immune re ...
lymphatic system
lymphatic system

... Before birth, the body makes an inventory of "self" proteins and other large molecules. b. After inventory, lymphocytes develop receptors that allow them to differentiate between nonself (foreign) and self antigens. c. Nonself antigens combine with T-cell and B-cell surface receptors and stimulate t ...
lymphatic system
lymphatic system

... a.Before birth, the body makes an inventory of "self" proteins and other large molecules. b. After inventory, lymphocytes develop receptors that allow them to differentiate between nonself (foreign) and self antigens. c. Nonself antigens combine with T-cell and B-cell surface receptors and stimulate ...
Asymptomatic infection with American cutaneous
Asymptomatic infection with American cutaneous

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Immunomics

Immunomics is the study of immune system regulation and response to pathogens using genome-wide approaches. With the rise of genomic and proteomic technologies, scientists have been able to visualize biological networks and infer interrelationships between genes and/or proteins; recently, these technologies have been used to help better understand how the immune system functions and how it is regulated. Two thirds of the genome is active in one or more immune cell types and less than 1% of genes are uniquely expressed in a given type of cell. Therefore, it is critical that the expression patterns of these immune cell types be deciphered in the context of a network, and not as an individual, so that their roles be correctly characterized and related to one another. Defects of the immune system such as autoimmune diseases, immunodeficiency, and malignancies can benefit from genomic insights on pathological processes. For example, analyzing the systematic variation of gene expression can relate these patterns with specific diseases and gene networks important for immune functions.Traditionally, scientists studying the immune system have had to search for antigens on an individual basis and identify the protein sequence of these antigens (“epitopes”) that would stimulate an immune response. This procedure required that antigens be isolated from whole cells, digested into smaller fragments, and tested against T- and B-cells to observe T- and B- cell responses. These classical approaches could only visualize this system as a static condition and required a large amount of time and labor.Immunomics has made this approach easier by its ability to look at the immune system as a whole and characterize it as a dynamic model. It has revealed that some of the immune system’s most distinguishing features are the continuous motility, turnover, and plasticity of its constituent cells. In addition, current genomic technologies, like microarrays, can capture immune system gene expression over time and can trace interactions of microorganisms with cells of the innate immune system. New, proteomic approaches, including T-cell and B-cells-epitope mapping, can also accelerate the pace at which scientists discover antibody-antigen relationships.
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