Abstract：
:Astrocytes are neural parenchymal cells that ubiquitously tile the central nervous system (CNS). In addition to playing essential roles in healthy tissue, astrocytes exhibit an evolutionarily ancient response to all CNS insults, referred to as astrocyte reactivity. Long regarded as passive and homogeneous, astrocyte reactivity is being revealed as a heterogeneous and functionally powerful component of mammalian CNS innate immunity. Nevertheless, concepts about what astrocyte reactivity comprises and what it does are incomplete and sometimes controversial. This review discusses the goal of differentiating reactive astrocyte subtypes and states based on composite pictures of molecular expression, cell morphology, cellular interactions, proliferative state, normal functions, and disease-induced dysfunctions. A working model and conceptual framework is presented for characterizing the diversity of astrocyte reactivity.
journal_name
Trends Immunoljournal_title
Trends in immunologyauthors
Sofroniew MVdoi
10.1016/j.it.2020.07.004subject
Has Abstractpub_date
2020-09-01 00:00:00pages
758-770issue
9eissn
1471-4906issn
1471-4981pii
S1471-4906(20)30153-8journal_volume
41pub_type
杂志文章,评审abstract：:The human immune system comprises cellular and molecular components designed to coordinately prevent infection while avoiding potentially harmful inflammation and autoimmunity. Immunity varies with age, reflecting unique age-dependent challenges including fetal gestation, the neonatal phase, and infancy. Here, we revi...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2014.04.007
更新日期：2014-07-01 00:00:00
abstract：:Glioblastoma is an aggressive and incurable primary brain tumor. While the blockade of immune checkpoints leads to reversal of T cell exhaustion in many cancers, the efficacy of this therapy in glioblastoma requires further consideration of the brain microenvironment beyond T cell activity. Neural cells are crucially ...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2016.11.005
更新日期：2017-02-01 00:00:00
abstract：:Plasma cells operate as factories where large quantities of Ig heavy and light chains are made and assembled into functional antibodies. The finished products are shipped out with impressive efficiency. A major component of the machinery necessary for high-rate antibody secretion is an elaborate network of endoplasmic...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2003.11.004
更新日期：2004-01-01 00:00:00
abstract：:Activation-Induced cytidine Deaminase (AID) initiates affinity maturation and isotype switching by deaminating deoxycytidines within immunoglobulin genes, leading to somatic hypermutation (SHM) and class switch recombination (CSR). AID thus potentiates the humoral response to clear pathogens. Marking the 20th annivers...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2020.04.009
更新日期：2020-07-01 00:00:00
abstract：:A prominent population of innate CD8+ T cells develops in the thymus of several gene-deficient mouse strains, including Itk, KLF2, CBP and Id3. These cells have the phenotype and function of memory CD8+ T cells, without previous exposure to antigen. Surprisingly, the cytokine IL-4 plays a key role in their development...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2010.12.004
更新日期：2011-02-01 00:00:00
abstract：:Psoriasis is a complex inflammatory process resulting from activation of the well-defined interleukin (IL)-23/T17 cytokine axis. We review the role of key cytokines IL-17 and IL-23 in psoriasis, as well as tumor necrosis factor (TNF)α, focusing on therapeutic cytokine interventions and what they reveal about psoriatic...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2012.11.005
更新日期：2013-04-01 00:00:00
abstract：:Despite readily detectable virus-specific CD8(+) T cells in most HIV-infected patients, immune surveillance is eventually lost, leading to progression to AIDS. Recently developed insights into human T-cell differentiation have been used to study the phenotype of virus-specific T cells in HIV-infected individuals. Base...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(02)02326-8
更新日期：2002-12-01 00:00:00
abstract：:Senescent cells, albeit not proliferating, are metabolically and transcriptionally active, thereby capable of affecting their microenvironment, notably via the production of inflammatory mediators. These mediators maintain and propagate the senescence process to neighboring cells, and then recruit immune cells for cle...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2015.02.009
更新日期：2015-04-01 00:00:00
abstract：:Epigenetic marks, such as DNA methylation, histone post-translational modifications and miRNAs, are induced in B cells by the same stimuli that drive the antibody response. They play major roles in regulating somatic hypermutation (SHM), class switch DNA recombination (CSR), and differentiation to plasma cells or long...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2013.03.006
更新日期：2013-09-01 00:00:00
abstract：:Inflammatory bowel diseases (IBDs) are chronic debilitating conditions, which impair the patient's quality of life significantly. Among them, Crohn's disease and ulcerative colitis are idiopathic disorders for which an infective etiology has long been sought. Here, we present an opinion in support of the hypothesis th...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(01)02000-2
更新日期：2001-09-01 00:00:00
abstract：:T cells are subject to tight regulatory measures, as uncontrolled responses might be detrimental to the host. Control measures include central or thymic tolerance, and peripheral tolerance mechanisms acting after naive T cells have encountered their cognate antigen, such as anergy induction, the contraction phase (whe...
journal_title：Trends in immunology
pub_type： 杂志文章
doi：10.1016/j.it.2006.09.006
更新日期：2006-11-01 00:00:00
abstract：:Although the function of the circulating immune cell compartment has been studied in detail for decades, limitations in terms of access and cell yields from peripheral tissues have restricted our understanding of tissue-based immunity, particularly in humans. Recent advances in high-throughput protein analyses, transc...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2020.08.009
更新日期：2020-10-01 00:00:00
abstract：:Toll-like receptors (TLRs) are primordial pathogen-recognition proteins that function as sentinels for the innate immune system. One of the TLR mysteries relates to TLR11, a receptor present in mice, but not humans, and known to recognize uropathogenic Escherichia coli. The first defined ligand for TLR11 has now been ...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2005.08.006
更新日期：2005-10-01 00:00:00
abstract：:Although therapy-mediated suppression of HIV-1 is effective and results in a degree of immune reconstitution, the complications resulting from life-long treatment emphasize the need for alternatives. This review discusses the use of structured interruptions in antiviral therapy to induce drug-free periods of immune-me...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(00)01809-3
更新日期：2001-02-01 00:00:00
abstract：:How innate immunity gave rise to adaptive immunity in vertebrates remains unknown. We propose an evolutionary scenario beginning with pathogen-associated molecular pattern(s) (PAMPs) being presented by molecule(s) on one cell to specific receptor(s) on other cells, much like MHC molecules and T cell receptors (TCRs). ...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2020.05.002
更新日期：2020-07-01 00:00:00
abstract：:Over the years, the role of the eosinophil in asthma and allergic processes has been disputed. Recent human experiments using a humanised monoclonal antibody to interleukin-5 (IL-5), and animal studies involving specific IL-5 gene deletion, indicates that eosinophils might control downstream repair and remodelling pro...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2004.07.006
更新日期：2004-09-01 00:00:00
abstract：:CD95 (Apo-1/Fas) is crucial for the negative selection of B cells within the germinal center (GC). Impairment of CD95-mediated apoptosis results in defective affinity maturation and the persistence of autoreactive B-cell clones. CD95 was defined recently as a tumor-suppressor gene and is silenced in many tumor entitie...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(01)02115-9
更新日期：2002-02-01 00:00:00
abstract：:Manipulating the immune system in order to induce clinically relevant responses against cancer is a longstanding goal. Interventions to enhance tumor-specific immunity through vaccination, sustaining effector T cell activation, or increasing the numbers of tumor-specific T cells using ex vivo expansion, have all resul...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2012.08.004
更新日期：2013-02-01 00:00:00
abstract：:The ocular surface is a unique mucosal immune compartment in which anatomical, physiological, and immunological features act in concert to foster a particularly tolerant microenvironment. These mechanisms are vital to the functional competence of the eye, a fact underscored by the devastating toll of excessive inflamm...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2017.11.007
更新日期：2018-04-01 00:00:00
abstract：:γδ T lymphocytes are involved in the stress response to injured epithelia and in tissue homeostasis by limiting the dissemination of malignant or infected cells and by regulating the nature of the subsequent adaptive immune response. γδ T cells have potent MHC-unrestricted cytotoxicity, a high potential for cytokine r...
journal_title：Trends in immunology
pub_type： 杂志文章
doi：10.1016/j.it.2012.01.006
更新日期：2012-05-01 00:00:00
abstract：:The F4/80 monoclonal antibody has been used widely as a marker for mouse macrophages. The antigen (Ag) recognized by the antibody has been characterized as a member of the epidermal growth factor (EGF)-transmembrane 7 (TM7) family, although the function of the molecule has remained elusive. A recent study provides evi...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2005.07.008
更新日期：2005-10-01 00:00:00
abstract：:Recent studies have reported paradoxical roles of inflammation in tumor immunity triggered by PD-1 checkpoint antibody (Ab) blockade. Here, we elaborate on this controversy and propose a new perspective that might help understand this paradox. Since inflammatory cytokines and PD-1 blockade are known to target differen...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2020.09.003
更新日期：2020-11-01 00:00:00
abstract：:Specific immunotherapy (SIT) is a common treatment for allergic diseases. Despite its usage in clinical practice for nearly a century, more-rational and safer allergen preparations are required. Here, the underlying mechanisms and principles of allergen modification for the future use of SIT in the treatment of allerg...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(01)01862-2
更新日期：2001-04-01 00:00:00
abstract：:Complement is a major defense system of innate immunity and aimed to destroy microbes. One of the central complement regulators is factor H, which belongs to a protein family that includes CFHL1 and five factor H-related (CFHR) proteins. Recent evidence shows that factor H family proteins (factor H and CFHRs) are asso...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2008.04.008
更新日期：2008-08-01 00:00:00
abstract：:Beyond their role in neutralization, antibodies mediate functions such as phagocytosis, cytotoxicity, and maintenance of immune homeostasis. Two modifications to the constant domain control antibody activity: theirreversible genomic selection of isotype/subclass and alterations in glycosylation. Because glycosylation ...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2017.02.004
更新日期：2017-05-01 00:00:00
abstract：:The crucial clinical problem in leprosy is the occurrence of acute inflammatory episodes that lead to nerve damage, even after the infecting organisms have been killed by antibiotics. We suggest that the instability of these inflammatory sites is attributable to a disturbance of the role that nerves play in the regula...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(01)02090-7
更新日期：2002-01-01 00:00:00
abstract：:The signaling lymphocytic activation molecule (SLAM) and SLAM-associated protein (SAP) families have key roles in normal immunity. They have also been implicated in diseases such as immunodeficiencies and auto-immunity. However, recent findings raise issues requiring examination in future investigations of these molec...
journal_title：Trends in immunology
pub_type： 杂志文章
doi：10.1016/j.it.2006.03.003
更新日期：2006-05-01 00:00:00
abstract：:An exemplar outcome of an immunology-based intervention is vaccine development; the current COVID-19 pandemic is a case in point. Can we build an immunology research ecosystem in Africa that nurtures discovery and enables translation? We see African immunologists as key agents of change and discuss obstacles and oppor...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2020.10.007
更新日期：2020-12-01 00:00:00
abstract：:T cells, as orchestrators of the adaptive immune response, serve important physiological and potentially therapeutic roles, for example in cancer immunotherapy. T cells are readily isolated from patients; however, the yield of antigen-specific T cells is limited, thus making their clinical use challenging. Therefore, ...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/j.it.2016.09.008
更新日期：2016-12-01 00:00:00
abstract：:Recent studies have indicated that complement proteins might exert novel functions that are distinct from their well-established inflammatory role, by modulating cellular responses and cell-cell interactions that are crucial to early development and cell differentiation. Accumulating evidence suggests that complement ...
journal_title：Trends in immunology
pub_type： 杂志文章,评审
doi：10.1016/s1471-4906(02)02287-1
更新日期：2002-10-01 00:00:00
