Abstract：
:The recombination activating genes 1 and 2 (Rag1 and Rag2) encode the key enzyme that is required for the generation of the highly diversified antigen receptor repertoire central to adaptive immunity. The longstanding model proposed that this gene pair was acquired by horizontal gene transfer to explain its abrupt appearance in the vertebrate lineage. The analyses of the enormous amount of sequence data created by many genome sequencing projects now provide the basis for a more refined model as to how this unique gene pair evolved from a selfish DNA transposon into a sophisticated DNA recombinase essential for immunity.
journal_name
Semin Immunoljournal_title
Seminars in immunologyauthors
Fugmann SDdoi
10.1016/j.smim.2009.11.004subject
Has Abstractpub_date
2010-02-01 00:00:00pages
10-6issue
1eissn
1044-5323issn
1096-3618pii
S1044-5323(09)00119-5journal_volume
22pub_type
杂志文章,评审abstract：:Metazoan parasites typically induce a type 2 immune response, characterized by T helper 2 (Th2) cells that produce the cytokines IL-4, IL-5 and IL-13 among others. The type 2 response is host protective, reducing the number of parasites either through direct killing in the tissues, or expulsion from the intestine. Typ...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2014.06.003
更新日期：2014-08-01 00:00:00
abstract：:Follicular dendritic cells (FDCs) were identified decades ago by their ability to retain immune complexes and more recent findings indicate that they are a source of B cell attractants and trophic factors. New imaging studies have shown that B cells closely associate with their dendritic processes during migration. He...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2007.12.001
更新日期：2008-02-01 00:00:00
abstract：:B cells require signals from multiple sources for their development from precursor cells, and differentiation into effector cells. BAFF has been identified as a critical regulator of B cell development and differentiation. Defects in the production of BAFF and/or expression of its receptors have been associated with a...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2006.04.004
更新日期：2006-10-01 00:00:00
abstract：:The humoral arm of the immune system provides robust protection against extracellular pathogens via the production of antibody molecules that neutralize or facilitate the destruction of microorganisms. However, the humoral immune system also provides a significant barrier to solid organ transplantation due to the anti...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2011.08.021
更新日期：2011-08-01 00:00:00
abstract：:Toll-like receptors are a family of pattern recognition receptors (PRRs) that evolved to detect microbial infection. These receptors recognize conserved molecular products derived from different classes of microorganisms, including Gram-positive and -negative bacteria, fungi, protozoa and viruses. Following recognitio...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2003.10.006
更新日期：2004-02-01 00:00:00
abstract：:In humans, blood is commonly monitored to provide surrogates of disease progression and assess immune status. However, the varied, rapid and atypical alterations in lymphocyte subsets which may occur in blood in response to pathogens, are not predictive of changes in the bulk of the immune system. A hallmark of human ...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1006/smim.1999.0169
更新日期：1999-04-01 00:00:00
abstract：:The mechanisms by which alphabeta T-cells are selected in the thymus and then recognize peptide MHC (pMHC) complexes in the periphery remain an enigma. Recent work particularly with respect to quantification of T-cell sensitivity and the role of self-ligands in T-cell activation has provided some important clues to th...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2007.04.003
更新日期：2007-08-01 00:00:00
abstract：:Macrophages are unique cells for origin, heterogeneity and plasticity. At steady state most of macrophages are derived from fetal sources and maintained in adulthood through self-renewing. Despite sharing common progenitors, a remarkable heterogeneity characterized tissue-resident macrophages indicating that local sig...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2015.10.003
更新日期：2015-08-01 00:00:00
abstract：:Periodontitis is a dysbiotic inflammatory disease leading to the destruction of the tooth-supporting tissues. Current therapies are not always effective and this prevalent oral disease continues to be a significant health and economic burden. Early clinical studies have associated periodontitis with elevated complemen...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2016.03.006
更新日期：2016-06-01 00:00:00
abstract：:The discovery of GPI-anchored membrane proteins presented a conundrum for membrane biologists. What could the special purpose be for this type of membrane anchor and why couldn't a transmembrane anchor do the same job? Recent information from several different sources is beginning to provide answers to these questions...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1006/smim.1994.1013
更新日期：1994-04-01 00:00:00
abstract：:Viral infections often result in long-term immunological memory. This article reviews the phenotypic changes seen in memory T cells and suggests a re-evaluation of the current dogma that T cell memory is maintained by persistence of antigen. ...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：
更新日期：1992-04-01 00:00:00
abstract：:The skin immune system harbors a complex network of dendritic cells (DCs). Recent studies highlight a diverse functional specialization of skin DC subsets. In addition to generating cellular and humoral immunity against pathogens, skin DCs are involved in tolerogenic mechanisms to ensure the maintenance of immune home...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2011.01.006
更新日期：2011-02-01 00:00:00
abstract：:TCR gamma delta + T cells represent a minority of CD3+ T cells in many species including man. The molecular structure of the TCR gamma and delta loci in man is well understood. The gamma and delta loci contain V, D, J and C gene segments. These segments do not rearrange randomly but in a coordinated, ordered fashion d...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：
更新日期：1991-03-01 00:00:00
abstract：:Poxviruses, unlike some other large DNA viruses, do not undergo a latent stage but rely on the expression of viral proteins to evade host immune responses. Of the many poxviral evasion genes identified, most target cytokines or other innate immune defenses. Resistance to interferons appears to be a priority as there a...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1006/smim.2000.0296
更新日期：2001-02-01 00:00:00
abstract：:Foxp3+CD4+ regulatory T (T(reg)) cells are a key population in controlling the immune response. Recently, their roles have been expanded to broader, non-immune, contexts, in particular the metabolic consequences downstream of obesity-induced inflammation, e.g. type-2 diabetes and cardiovascular disease. This review hi...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2011.06.002
更新日期：2011-12-01 00:00:00
abstract：:Pentraxins are highly conserved components of the humoral arm of innate immunity. They include the short pentraxins C reactive protein (CRP) and serum amyloid P component (SAP), and the long pentraxin PTX3. These are soluble pattern-recognition molecules that are present in the blood and body fluids, and share the abi...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2013.05.002
更新日期：2013-02-01 00:00:00
abstract：:Despite the introduction almost a century ago of Mycobacterium bovis BCG (BCG), an attenuated form of M. bovis that is used as a vaccine against Mycobacterium tuberculosis, tuberculosis remains a global health threat and kills more than 1.5 million people each year. This is mostly because BCG fails to prevent pulmonar...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2014.09.003
更新日期：2014-12-01 00:00:00
abstract：:Recent technological advances have provided deeper insights into the role of small molecules in biological processes. Metabolic profiling has thus entered the arena of -omics studies and rapidly proven its value both as stand-alone and as complement to other more advanced approaches, notably transcriptomics. Here we d...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2018.07.002
更新日期：2018-10-01 00:00:00
abstract：:Neoantigens are antigens encoded by tumor-specific mutated genes. Studies in the past few years have suggested a key role for neoantigens in cancer immunotherapy. Here we review the discoveries of neoantigens in the past two decades and the current advances in neoantigen identification. We also discuss the potential b...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2015.11.002
更新日期：2016-02-01 00:00:00
abstract：:Apoptosis of activated lymphocytes is critical to immune homeostasis. The cell surface receptor Fas is an important mediator of lymphocyte apoptosis; defective Fas expression causes accumulation of lymphocytes and autoimmune disease in mice. Apoptosis defects due to mutations of Fas have also been found in a rare huma...
journal_title：Seminars in immunology
pub_type： 杂志文章
doi：10.1006/smim.1996.0056
更新日期：1997-02-01 00:00:00
abstract：:The OX-40 receptor (OX-40R) is a transmembrane protein found on the surface of activated CD4(+) T cells. When engaged by an agonist such as anti-OX-40 antibody or the OX-40 ligand (OX-40L) during antigen presentation to T cell lines, the OX-40R generates a costimulatory signal that is as potent as CD28 costimulation. ...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1006/smim.1998.0146
更新日期：1998-12-01 00:00:00
abstract：:The LTB4 pathway is an attractive target for therapeutic drug development. Two broad classes of drugs have been pursued: antagonists of the primary LTB4 receptors (BLT1 and BLT2) and inhibitors of LTA4 Hydrolase (LTA4H), the rate limiting enzyme in the production of LTB4. An initial wave of effort culminated in the 19...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2017.08.007
更新日期：2017-10-01 00:00:00
abstract：:From the earliest days in the field of tumor immunology three questions have been asked: do cancer cells express tumor-specific antigens, does the immune system recognize these antigens and if so, what is their biochemical nature? We now know that truly tumor-specific antigens exist, that they are caused by somatic mu...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2008.07.001
更新日期：2008-10-01 00:00:00
abstract：:Mycobacterium tuberculosis remains a major public health burden. It is generally thought that while B cell- and antibody-mediated immunity plays an important role in host defense against extracellular pathogens, the primary control of intracellular microbes derives from cellular immune mechanisms. Studies on the immun...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2014.10.005
更新日期：2014-12-01 00:00:00
abstract：:In the past decade accumulating evidence supported the view that the immune system should be regarded as trust consisting of several branches. In this review, we will first introduce the architectural features comprising the intestinal immune system emphasising its plasticity and subsequently discuss the concepts desc...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2008.03.001
更新日期：2008-06-01 00:00:00
abstract：:Leukocyte subsets are recruited from the blood to lymphoid and non-lymphoid tissues via a multi-step process that involves distinct adhesive and activation steps. Chemokines, a family of chemotactic cytokines that signal through G-protein-coupled receptors, play critical roles in regulating the leukocyte recruitment c...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1006/smim.2001.0345
更新日期：2002-04-01 00:00:00
abstract：:A growing amount of evidences indicates that inflammaging - the chronic, low grade inflammation state characteristic of the elderly - is the result of genetic as well as environmental or stochastic factors. Some of these, such as the accumulation of senescent cells that are persistent during aging or accompany its pro...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2018.10.009
更新日期：2018-12-01 00:00:00
abstract：:Senescent cells (SCs) arise from normal cells in multiple organs due to inflammatory, metabolic, DNA damage, or tissue damage signals. SCs are non-proliferating but metabolically active cells that can secrete a range of pro-inflammatory and proteolytic factors as part of the senescence-associated secretory phenotype (...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2019.04.003
更新日期：2018-12-01 00:00:00
abstract：:The adaptive immune system, which utilizes RAG-mediated recombination to diversify immune receptors, arose in ancestors of the jawed vertebrates approximately 500 million years ago. Homologs of immunoglobulins (Igs), T cell antigen receptors (TCRs), major histocompatibility complex (MHC) I and II, and the recombinatio...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2004.08.001
更新日期：2004-08-01 00:00:00
abstract：:Signals from the precursor-B cell receptor (pre-BCR) are essential for selection and clonal expansion of pre-B cells that have performed productive immunoglobulin heavy chain V(D)J recombination. In the mouse, the downstream signaling molecules SLP-65 and Btk cooperate to limit proliferation and induce differentiation...
journal_title：Seminars in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.smim.2005.10.002
更新日期：2006-02-01 00:00:00
