Abstract：
:Although T-cell clones bearing T-cell receptors with high affinity for self-peptide major histocompatibility complex (MHC) products are generally eliminated in the thymus (recessive tolerance), the peripheral T-cell repertoire remains strongly biased toward self-peptide MHC complexes and includes autoreactive T cells. A search for peripheral T cells that might exert dominant inhibitory effects on autoreactivity has implicated a subpopulation of CD4(+)CD25(+) T cells called regulatory T cells (Tregs). Here, we discuss the role of cytokines and costimulatory molecules in the generation, maintenance, and function of Tregs. We also summarize evidence for the involvement of Tregs in controlling autoimmune diseases, including type 1 diabetes, experimental autoimmune encephalomyelitis, and inflammatory bowel disease. Last, we discuss our recent definition of the potential role of B7 expressed on activated T-effector cells as a target molecule for Treg-dependent suppression. These observations suggest that the engagement of B7 on effector T cells transmits an inhibitory signal that blocks or attenuates effector T-cell function. We restrict our comments to the suppression mediated by cells within the CD4 lineage; the impact of the cells within the CD8 lineage that may suppress via engagement of Qa-1 on effector T cells is not addressed in this review.
journal_name
Immunol Revjournal_title
Immunological reviewsauthors
Paust S,Cantor Hdoi
10.1111/j.0105-2896.2005.00247.xkeywords:
subject
Has Abstractpub_date
2005-04-01 00:00:00pages
195-207eissn
0105-2896issn
1600-065Xpii
IMR247journal_volume
204pub_type
杂志文章,评审abstract：:Peptide/protein display libraries are powerful tools for identifying and manipulating receptor/ligand pairs. While the large size of bacterial phage display libraries has made them the platform of choice in many applications, often considerable engineering has been required to achieve display of properly folded and ac...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.0105-2896.2006.00365.x
更新日期：2006-04-01 00:00:00
abstract：:Multiple sclerosis is believed to be mediated by T cells specific for myelin antigens that circulate harmlessly in the periphery of healthy individuals until they are erroneously activated by an environmental stimulus. Upon activation, the T cells enter the central nervous system and orchestrate an immune response aga...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2011.01016.x
更新日期：2011-05-01 00:00:00
abstract：:In the century since Paul Portier and Charles Richet described their landmark findings of severe fatal reactions in dogs re-exposed to venom after vaccination with sea anemone venom, treatment for anaphylaxis continues to evolve. The incidence of anaphylaxis continues to be difficult to measure. Underreporting due to ...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2011.01028.x
更新日期：2011-07-01 00:00:00
abstract：:In this review, we briefly cover the critical requirements for interleukin-7 (IL-7) in thymocyte development and peripheral T-cell homeostasis. Part of the IL-7 effect is antiapoptotic or 'trophic' and we have studied the intracellular pathways involved in lymphocyte survival and death regulated by this cytokine. We r...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1034/j.1600-065x.2003.00050.x
更新日期：2003-06-01 00:00:00
abstract：:Studies of the regulation of gene expression historically focused on transcription. However, during stress and apoptosis, profound gene expression changes occur more rapidly and globally than is possible by regulating transcription. Posttranscriptional changes in mRNA processing and translation in response to diverse ...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12052
更新日期：2013-05-01 00:00:00
abstract：:Regulatory T cells (Tregs) are critical to the human immune system, providing appropriately scaled immune responses and mediating peripheral tolerance. A central role for forkhead box protein 3 (FoxP3)(+) Tregs has been shown in the pathogenesis of mechanistically diverse central nervous system (CNS) diseases from aut...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2012.01130.x
更新日期：2012-07-01 00:00:00
abstract：:Non-human primate (NHP) models, especially involving macaques, are considered important models of human immunity and have been essential in preclinical testing for vaccines and therapeutics. Despite this, much less characterization of macaque Fc receptors has occurred compared to humans or mice. Much of the characteri...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12366
更新日期：2015-11-01 00:00:00
abstract：:The molecular analysis of the Class II region of the MHC of mice and of humans has to date led to some important conclusions. These regions encode sizeable families of related loci, at least 2 alpha and 6 beta in mice and 6 alpha and 7 beta in man. In addition to the sizeable number of potential molecules that could b...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065x.1985.tb01125.x
更新日期：1985-07-01 00:00:00
abstract：:The immune system is capable of recognizing and eliminating an enormous array of pathogens due to the extremely diverse antigen receptor repertoire of T and B lymphocytes. However, the development of lymphocytes bearing receptors with unique specificities requires the generation of programmed double strand breaks (DSB...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.0105-2896.2006.00361.x
更新日期：2006-02-01 00:00:00
abstract：:Inoculation of plasmid DNA is a simple way to immunize, but it is characterized by low immunogenicity, which has hampered the development of effective DNA vaccines for human use. Here, we discuss how poor immunogenicity can be solved and present our proposal: genetically programmed B lymphocytes as antigen-presenting ...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.0105-2896.2004.00152.x
更新日期：2004-06-01 00:00:00
abstract：:Immunologists working in the field of autoimmunity tend to concentrate all their efforts on the elucidation of possible malfunctions of the immune system, particularly pathologic changes of immune regulation. Also in the OS model various groups of investigators emphasized this approach, although it was already clear e...
journal_title：Immunological reviews
pub_type： 杂志文章
doi：10.1111/j.1600-065x.1986.tb01167.x
更新日期：1986-12-01 00:00:00
abstract：:Francisella tularensis in an intracellular bacterial pathogen that causes a potentially lethal disease called tularemia. Studies performed nearly 100 years ago revealed that neutrophil accumulation in infected tissues correlates directly with the extent of necrotic damage during F. tularensis infection. However, the d...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12445
更新日期：2016-09-01 00:00:00
abstract：:Adaptive immunity has traditionally been considered a unique feature of vertebrate physiology. Unlike innate immune responses, which remain essentially unchanged upon exposure to a recurrent challenge with the same stimulus, adaptive immune cells possess the ability to learn and remember. Thus, secondary adaptive resp...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.0105-2896.2010.00906.x
更新日期：2010-05-01 00:00:00
abstract：:BioBreeding (BB) rats spontaneously develop an autoimmune diabetic syndrome similar to that observed in humans and NOD mice. One of the diabetes susceptibility loci maps to the lyp locus on chromosome 4. In this article we describe the consequences of the BB rat lyp mutation on T-cell homeostasis, repertoire and funct...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1034/j.1600-065x.2001.1840115.x
更新日期：2001-12-01 00:00:00
abstract：:Genes encoding several serum complement components and the gene(s) for steroid 21-hydroxylase (21-OH) have been located in the class III region of the major histocompatibility complex (MHC). All these genes are highly polymorphic in man, and these polymorphisms have been used to draw conclusions about the structure an...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065x.1985.tb01148.x
更新日期：1985-10-01 00:00:00
abstract：:Respiratory syncytial virus (RSV) is an important cause of respiratory disease causing high rates of hospitalizations in infants, significant morbidity in children and adults, and excess mortality in the elderly. Major barriers to vaccine development include early age of RSV infection, capacity of RSV to evade innate ...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2010.00972.x
更新日期：2011-01-01 00:00:00
abstract：:In spite of some remarkable progress in our understanding of the immune response to parasites and in the molecular cloning of dozens of genes encoding for potentially protective proteins, no definitive step has yet been made towards operational vaccines against major human parasitic diseases. The reasons for our prese...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065x.1989.tb00551.x
更新日期：1989-12-01 00:00:00
abstract：:The immune system is organized as a number of distinct lymphoid organs interconnected by recirculating lymphocytes. These organs, such as lymph nodes, spleen, and gut-associated Peyer's patches, are compartmentalized, providing separate niches for T and B cells. In addition, regional compartmentalization of lymphoid o...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2006.00429.x
更新日期：2006-10-01 00:00:00
abstract：:Once across the barrier of the epithelium, macrophages constitute the primary defense against microbial invasion. For most microbes, the acidic, hydrolytically competent environment of the phagolysosome is sufficient to kill them. Despite our understanding of the trafficking events that regulate phagosome maturation, ...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2007.00547.x
更新日期：2007-10-01 00:00:00
abstract：:In mice, the absence of terminal deoxynucleotidyl transferase (Tdt) expression during fetal and neonatal life provides a window in development where clones of lymphocytes are generated that provide protective immunity. Introducing premature Tdt activity interferes with the development of these clones and results in an...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：
更新日期：2000-06-01 00:00:00
abstract：:In addition to its effects on sexual differentiation and reproduction, estrogen has important impact on the immune system and on bone. It has also been evident that the effects of estrogen on bone to a large extent are mediated via its action on immune cells. Estrogen has a dichotomous impact on the immune system by d...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.0105-2896.2005.00326.x
更新日期：2005-12-01 00:00:00
abstract：:The general thrust of this volume is to review the roles of accessory cells in regulating T and B lymphocytes. To that end, we have summarized the evidence that indicates the crucial role that Langerhans cells play in the induction and expression of immunity to antigens that gain access to, or arise within, skin. Lang...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065x.1990.tb00572.x
更新日期：1990-10-01 00:00:00
abstract：:It is clear by now that cell-to-cell interactions involving a variety of signals are required for effective immune response. The data reviewed here suggest that CD40-CD40L interactions are critical for development of CD4 T-cell-dependent effector functions. Lack of this important interaction results in greatly reduced...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065x.1996.tb00921.x
更新日期：1996-10-01 00:00:00
abstract：:For more than 25 years, it has been widely appreciated that Ca2+ influx is essential to trigger T-lymphocyte activation. Patch clamp analysis, molecular identification, and functional studies using blockers and genetic manipulation have shown that a unique contingent of ion channels orchestrates the initiation, intens...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/j.1600-065X.2009.00816.x
更新日期：2009-09-01 00:00:00
abstract：:One of the biggest barriers to achieving allograft tolerance is the presence of immunological memory within the recipient, which confers a faster, more robust immune response that is in most cases more resistant to pharmacologic immunosuppression. This review will identify the mechanisms by which alloreactive T cells ...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12824
更新日期：2019-11-01 00:00:00
abstract：:The characterization of the microenvironment of human tumors led to the description of tertiary lymphoid structures (TLS) characterized by mature dendritic cells in a T-cell zone adjacent to B-cell follicle including a germinal center. TLS represent sites of lymphoid neogenesis that develop in most solid cancers. Anal...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12405
更新日期：2016-05-01 00:00:00
abstract：:Guanine nucleotide binding proteins rapidly cycle between a guanosine diphosphate (GDP)-bound and guanosine triphosphate (GTP)-bound state, and they operate as binary switches that control cell activation in response to environmental cues. GTPases adopt different conformations when binding GTP vs. GDP. The GTP-bound s...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1034/j.1600-065x.2003.00028.x
更新日期：2003-04-01 00:00:00
abstract：:Chronic inflammation in the tumor microenvironment and evasion of the antitumor effector immune response are two of the emerging hallmarks required for oncogenesis and cancer progression. The innate immune system not only plays a critical role in perpetuating these tumor-promoting hallmarks but also in developing anti...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12464
更新日期：2016-11-01 00:00:00
abstract：:The mammalian gastrointestinal (GI) tract is colonized by trillions of beneficial commensal bacteria that are essential for promoting normal intestinal physiology. While the majority of commensal bacteria are found in the intestinal lumen, many species have also adapted to colonize different anatomical locations in th...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1111/imr.12186
更新日期：2014-07-01 00:00:00
abstract：:Among various strategies to evade the host immune response, some viruses like human cytomegalovirus (HCMV) interfere with surface MHC class I expression and antigen presentation to T lymphocytes. The ability of natural killer (NK) cells to detect MHC class I molecules through inhibitory receptors can be envisaged as a...
journal_title：Immunological reviews
pub_type： 杂志文章,评审
doi：10.1034/j.1600-065x.2001.1810116.x
更新日期：2001-06-01 00:00:00
