Abstract:
:Our understanding of the X-linked lymphoproliferative syndrome (XLP) has advanced significantly in the last two years. The gene that is altered in the condition (SAP/SH2D1A) has been cloned and its protein crystal structure solved. At least two sets of target molecules for this small SH2 domain-containing protein have been identified: A family of hematopoietic cell surface receptors, i.e. the SLAM family, and a second molecule, which is a phosphorylated adapter. A SAP-like protein, EAT-2, has also been found to interact with this family of surface receptors. Several lines of evidence, including structural studies and analyses of missense mutations in XLP patients, support the notion that SAP/SH2D1A is a natural inhibitor of SH2-domain-dependent interactions with members of the SLAM family. However, details of its role in signaling mechanisms are yet to be unravelled. Further analyses of the SAP/SH2D1A gene in XLP patients have made it clear that the development of dys-gammaglobulinemia and B cell lymphoma can occur without evidence of prior EBV infection. Moreover, preliminary results of virus infections of a mouse in which the SAP/SH2D1A gene has been disrupted suggest that EBV infection is not per se critical for the development of XLP phenotypes. It appears therefore that the SAP/SH2D1A gene controls signaling via the SLAM family of surface receptors and thus may play a fundamental role in T cell and APC interactions during viral infections.
journal_name
Annu Rev Immunoljournal_title
Annual review of immunologyauthors
Morra M,Howie D,Grande MS,Sayos J,Wang N,Wu C,Engel P,Terhorst Cdoi
10.1146/annurev.immunol.19.1.657subject
Has Abstractpub_date
2001-01-01 00:00:00pages
657-82eissn
0732-0582issn
1545-3278pii
19/1/657journal_volume
19pub_type
杂志文章,评审abstract::The tripartite subdivision of lymphocytes into B cells, alphabeta T cells, and gammadelta cells has been conserved seemingly since the emergence of jawed vertebrates, more than 450 million years ago. Yet, while we understand much about B cells and alphabeta T cells, we lack a compelling explanation for the evolutionar...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.18.1.975
更新日期:2000-01-01 00:00:00
abstract::The past five or six years has seen a resurgence of interest in immunological memory. Areas in which important advances have been made of late or in which problems in understanding persist are covered here: (i) Selection of virgin B cells for entry into the peripheral pool. (ii) Expression of immunoglobulin isotypes a...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.11.040193.000405
更新日期:1993-01-01 00:00:00
abstract::This review summarizes the general parameters of cell- and antibody-mediated immune protection and the basic mechanisms responsible for what we call immunological memory. From this basis, the various successes and difficulties of vaccines are evaluated with respect to the role of antigen in maintaining protective immu...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.21.120601.141045
更新日期:2003-01-01 00:00:00
abstract::Human immunodeficiency virus-1 (HIV-1) is usually transmitted through sexual contact and in the very early stages of infection establishes a persistent infection in lymphatic tissues (LT). Virus is produced and stored at this site in a dynamic process that slowly depletes the immune system of CD4+ T cells, setting the...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.17.1.625
更新日期:1999-01-01 00:00:00
abstract::The discovery of new functions for the original B7 family members, together with the identification of additional B7 and CD28 family members, have revealed new ways in which the B7:CD28 family regulates T cell activation and tolerance. B7-1/B7-2:CD28 interactions not only promote initial T cell activation but also reg...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.23.021704.115611
更新日期:2005-01-01 00:00:00
abstract::Mast cells have existed long before the development of adaptive immunity, although they have been given different names. Thus, in the marine urochordate Styela plicata, they have been designated as test cells. However, based on their morphological characteristics (including prominent cytoplasmic granules) and mediator...
journal_title:Annual review of immunology
pub_type: 杂志文章
doi:10.1146/annurev-immunol-071719-094903
更新日期:2020-04-26 00:00:00
abstract::T helper lymphocytes can be divided into two distinct subsets of effector cells based on their functional capabilities and the profile of cytokines they produce. The Th1 subset of CD4+ T cells secretes cytokines usually associated with inflammation, such as IFN-gamma and TNF and induces cell-mediated immune responses....
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.15.1.297
更新日期:1997-01-01 00:00:00
abstract::Regulation of tyrosine phosphorylation is a critical control point for integration of environmental signals into cellular responses. This regulation is mediated by the reciprocal actions of protein tyrosine kinases and phosphatases. CD45, the first and prototypic receptor-like protein tyrosine phosphatase, is expresse...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.21.120601.140946
更新日期:2003-01-01 00:00:00
abstract::Autoimmunity and the pathogenesis of autoimmune diseases were a major focus of the Walter and Eliza Hall Institute, where I started my research career. After my initial studies on immune cell culture and immune regulation, I returned to an analysis of the pathogenesis of human autoimmunity in London. Linking upregulat...
journal_title:Annual review of immunology
pub_type: 传,历史文章,杂志文章
doi:10.1146/annurev-immunol-082708-100732
更新日期:2009-01-01 00:00:00
abstract::Although several laboratories have shown that the appearance of naturally occurring suppressor cells in the spleens of neonatal or irradiated mice is temporarily related to the ease of induction of tolerance, the characteristics of these cells and their regulatory functions have been poorly understood until recently. ...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.02.040184.001251
更新日期:1984-01-01 00:00:00
abstract::During the last decade the immunoglobulin J chain has indeed come of age. The amino-acid sequence has been determined for the mouse and human polypeptides, and the data obtained have established the uniqueness of the primary structure and its high degree of conservation in vertebrates. The biosynthesis of J chain has ...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.03.040185.002233
更新日期:1985-01-01 00:00:00
abstract::During the last several years, the mechanism of IFN gamma-dependent signal transduction has been the focus of intense investigation. This research has recently culminated in the elucidation of a comprehensive molecular understanding of the events that underlie IFN gamma-induced cellular responses. The structure and fu...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.15.1.563
更新日期:1997-01-01 00:00:00
abstract::The Class 2 alpha-helical cytokines consist of interleukin-10 (IL-10), IL-19, IL-20, IL-22, IL-24 (Mda-7), and IL-26, interferons (IFN-alpha, -beta, -epsilon, -kappa, -omega, -delta, -tau, and -gamma) and interferon-like molecules (limitin, IL-28A, IL-28B, and IL-29). The interaction of these cytokines with their spec...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.22.012703.104622
更新日期:2004-01-01 00:00:00
abstract::It is possible to create mice in which a planned alteration has been introduced at a specific locus in the genome. The planned alteration is first introduced into the genome of mouse embryonic stem (ES) cells in tissue culture. This is accomplished by homologous recombination between the targeted genomic locus and DNA...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.10.040192.003421
更新日期:1992-01-01 00:00:00
abstract::T cell anergy is a tolerance mechanism in which the lymphocyte is intrinsically functionally inactivated following an antigen encounter, but remains alive for an extended period of time in a hyporesponsive state. Models of T cell anergy affecting both CD4(+) and CD8(+) cells fall into two broad categories. One, clonal...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.21.120601.141110
更新日期:2003-01-01 00:00:00
abstract::Dendritic cells (DCs) are professional antigen-presenting cells that have the ability to sense infection and tissue stress, sample and present antigen to T lymphocytes, and induce different forms of immunity and tolerance. The functional versatility of DCs depends on their remarkable ability to translate collectively ...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.25.022106.141718
更新日期:2007-01-01 00:00:00
abstract::The transcription factor NF-kappa B, more than a decade after its discovery, remains an exciting and active area of study. The involvement of NF-kappa B in the expression of numerous cytokines and adhesion molecules has supported its role as an evolutionarily conserved coordinating element in the organism's response t...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.16.1.225
更新日期:1998-01-01 00:00:00
abstract::The innate immune system relies on its capacity to rapidly detect invading pathogenic microbes as foreign and to eliminate them. The discovery of Toll-like receptors (TLRs) provided a class of membrane receptors that sense extracellular microbes and trigger antipathogen signaling cascades. More recently, intracellular...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.021908.132715
更新日期:2009-01-01 00:00:00
abstract::MHC class I molecules are peptide receptors of stringent specificity which however still allow millions of different ligands. This is achieved by the following specificity characteristics summarized as allele specific peptide motifs: Peptides are of defined length, depending on the class I allele (either 8 or 9 residu...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.11.040193.001241
更新日期:1993-01-01 00:00:00
abstract::The introduction of cloned genes into the germline of mice has been proven to be a powerful tool to investigate the role of the respective gene products within the immune system. Here we summarize the transgenic mouse models that have been established with major histocompatibility complex (MHC) class-I genes. Foreign ...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.09.040191.001501
更新日期:1991-01-01 00:00:00
abstract::The discovery of tissue-resident innate lymphoid cell populations effecting different forms of type 1, 2, and 3 immunity; tissue repair; and immune regulation has transformed our understanding of mucosal immunity and allergy. The emerging complexity of these populations along with compounding issues of redundancy and ...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev-immunol-041015-055549
更新日期:2016-05-20 00:00:00
abstract::While still incomplete, the first data concerning the biochemistry of T cell receptor-ligand interactions in cell-free systems seem to have considerable predictive value regarding whether a T cell response is strong or weak or suppressive. This data will help considerably in elucidating the mechanisms behind T cell re...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.16.1.523
更新日期:1998-01-01 00:00:00
abstract::Over a decade has passed since the identification of the human immunodeficiency virus (HIV) as the causative agent of AIDS. During this time, HIV has been extensively characterized, and a variety of vaccine constructs and strategies have been explored. For the most part, these have been driven by successes of the past...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.12.040194.004423
更新日期:1994-01-01 00:00:00
abstract::Major histocompatibility complex (MHC) class II molecules are heterodimeric cell surface proteins that are critically important for the development and function of cells in the immune system. In particular, the maturation of CD4+ T cells is dependent on the expression of MHC class II molecules on thymic epithelium, wh...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.13.040195.002221
更新日期:1995-01-01 00:00:00
abstract::CD4+ T lymphocytes initiate and regulate both the specific and nonspecific effector mechanisms of allergic immune responses. The definition of immunogenic components within allergens has allowed the specificity of the T-cell repertoire to be examined, and the refinement of their molecular structure is now facilitating...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.09.040191.000435
更新日期:1991-01-01 00:00:00
abstract::A host has two methods to defend against pathogens: It can clear the pathogens or reduce their impact on health in other ways. The first, resistance, is well studied. Study of the second, which ecologists call tolerance, is in its infancy. Tolerance measures the dose response curve of a host's health in reaction to a ...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev-immunol-020711-075030
更新日期:2012-01-01 00:00:00
abstract::The transmembrane receptor Notch participates in diverse cell fate decisions throughout embryonic development. Notch receptors and their ligands are expressed in the mammalian thymus, raising the possibility that Notch could regulate T cell fate decisions. Expression of a constitutively activated form of Notch in deve...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.immunol.17.1.283
更新日期:1999-01-01 00:00:00
abstract::The genes encoding the alpha and beta chain of the T-cell receptor and the gamma gene have been cloned, and their structure, organization, ontogeny of expression, pattern of rearrangement, and diversification are now generally understood. In most cases, the immunoglobulin paradigm applied very well to the correspondin...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev.iy.04.040186.002525
更新日期:1986-01-01 00:00:00
abstract::This article outlines my early start in medicine, a late start in immunology research, and my efforts to integrate the two activities. I first describe some of the background information, excitement, and implications of the recognition of T and B cells as separate but functionally intertwined arms of the adaptive immu...
journal_title:Annual review of immunology
pub_type: 杂志文章,评审
doi:10.1146/annurev-immunol-030409-101248
更新日期:2010-01-01 00:00:00
abstract::Recent years have witnessed an emergence of interest in understanding metabolic changes associated with immune responses, termed immunometabolism. As oxygen is central to all aerobic metabolism, hypoxia is now recognized to contribute fundamentally to inflammatory and immune responses. Studies from a number of groups ...
journal_title:Annual review of immunology
pub_type: 杂志文章
doi:10.1146/annurev-immunol-100819-121537
更新日期:2020-04-26 00:00:00