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Seminars in Immunology

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https://www.readbyqxmd.com/read/28431920/the-microbiome-in-anti-cancer-therapy
#1
REVIEW
Stavros Bashiardes, Timur Tuganbaev, Sara Federici, Eran Elinav
The commensal microbiome constitutes an important modulator of host physiology and risk of disease, including cancer development and progression. Lately, the microbiome has been suggested to modulate the efficacy of anti-cancer treatment. Examples include chemotherapy and total body irradiation-induced barrier function disruption, leading to microbial efflux that drives activation of anti-tumorigenic T cells; Microbiome-driven release of reactive oxygen species contributing to the efficacy of platinum salts; and microbiome-induced immune priming promoting the anti-tumor effects of alkylating chemotherapy and immune checkpoint inhibitors...
April 18, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28431919/influence-of-scaffold-design-on-host-immune-and-stem-cell-responses
#2
REVIEW
Ashwin Nair, Liping Tang
The combined culture of isolated stem cells in tissue engineering scaffolds represents a popular strategy for the regeneration of specialized tissues. Despite of improved outcomes in some tissues, this stem cell-seeded tissue engineering strategy has not led to significant tissue regeneration as expected. The lower-than-expected outcome may be caused by overwhelming immune responses to scaffold materials and poor survival of seeded stem cells following implantation. This review is aimed at summarizing the success and failure of this strategy and also shedding some light on new directions to design scaffolds for promoting regenerative responses via autologous stem cells...
April 18, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28274693/the-host-response-to-naturally-derived-extracellular-matrix-biomaterials
#3
REVIEW
Aaron H Morris, D K Stamer, T R Kyriakides
Biomaterials based on natural materials including decellularized tissues and tissue-derived hydrogels are becoming more widely used for clinical applications. Because of their native composition and structure, these biomaterials induce a distinct form of the foreign body response that differs from that of non-native biomaterials. Differences include direct interactions with cells via preserved moieties as well as the ability to undergo remodeling. Moreover, these biomaterials could elicit adaptive immune responses due to the presence of modified native molecules...
March 5, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/28214177/dendritic-cells-in-host-response-to-biologic-scaffolds
#4
REVIEW
Cynthia A Leifer
Tissue regeneration and repair require a highly complex and orchestrated series of events that require inflammation, but can be compromised when inflammation is excessive or becomes chronic. Macrophages are one of the first cells to contact and respond to implanted materials, and mediate the inflammatory response. The series of events following macrophage association with biomaterials has been well-studied. Dendritic cells (DCs) also directly interact with biomaterials, are critical for specific immune responses, and can be activated in response to interactions with biomaterials...
February 14, 2017: Seminars in Immunology
https://www.readbyqxmd.com/read/27964804/the-versatile-platelet-contributes-to-inflammation-infection-hemostasis-coagulation-and-cancer
#5
EDITORIAL
Paul Kubes
No abstract text is available yet for this article.
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27881292/innate-immunity-hemostasis-and-matrix-remodeling-ptx3-as-a-link
#6
REVIEW
Andrea Doni, Cecilia Garlanda, Alberto Mantovani
Innate immunity is evolutionarily connected with hemostasis. PTX3 is an essential fluid-phase pattern recognition molecule of the innate immune system that acts as a functional ancestor of antibodies. PTX3 by interacting with defense collagens and fibrinogens amplifies effector functions of the innate immune system. At wound sites, PTX3 regulates the injury-induced thrombotic response and promotes wound healing by favoring timely fibrinolysis. Therefore, PTX3 interacts with ancestral domains conserved in innate immunity, hemostasis and extracellular matrix and exerts functions related to both antimicrobial resistance and tissue repair...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27876233/role-of-platelets-in-neutrophil-extracellular-trap-net-production-and-tissue-injury
#7
REVIEW
Seok-Joo Kim, Craig N Jenne
In addition to their well-known role as the cellular mediator of thrombosis, numerous studies have identified key roles for platelets during various disease processes. Importantly, platelets play a critical role in the host immune response, directly interacting with, and eliminating pathogens, from the blood stream. In addition to pathogen clearance, platelets also contribute to leukocyte recruitment at sites of infection and inflammation, and modulate leukocyte activity. Platelet interaction with activated neutrophils is a potent inducer of neutrophil extracellular trap (NET)...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27876232/hypercoagulation-and-complement-connected-players-in-tumor-development-and-metastases
#8
REVIEW
Silvia Guglietta, Maria Rescigno
Hypercoagulation is a common feature of several tumors to the extent that individuals with coagulation defects often present with occult visceral cancers. Recent evidence has shown that hypercoagulation is not just a mere secondary effect due to the presence of the tumor, rather it actively contributes to tumor development and dissemination. Among the numerous mechanisms that can contribute to cancer-associated hypercoagulation, the ones involving immune-mediated processes are gaining increasing attention. In particular, complement cascade and hypercoagulation are one inducing the other in a vicious circle that involves neutrophil extracellular traps (NETs) formation...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27866916/blood-coagulation-in-immunothrombosis-at-the-frontline-of-intravascular-immunity
#9
REVIEW
Florian Gaertner, Steffen Massberg
While hemostasis is the physiological process that prevents blood loss after vessel injury, thrombosis is often portrayed as a pathologic event involving blood coagulation and platelet aggregation eventually leading to vascular occlusion and tissue damage. However, recent work suggests that thrombosis can also be a physiological process, termed immunothrombosis, initiated by the innate immune system providing a first line of defense to locally control infection. Fibrin forms the structural basis of immunothrombotic clots and its assembly involves the concerted action of coagulation factors, platelets and leukocytes...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27802906/platelet-mediated-modulation-of-adaptive-immunity
#10
REVIEW
Matteo Iannacone
Besides being the main cellular effectors of hemostasis, platelets possess a plethora of intracellular mediators (e.g. cytokines, chemokines and antimicrobial molecules) as well as surface receptors (e.g. P-selectin, integrins, CD40L, intercellular adhesion molecule [ICAM]-2, junctional adhesion molecule [JAM]-A, CD44, Toll-like receptors, chemokine receptors) known for their involvement in inflammatory and immune responses. These aspects of platelet biology, which suggest an evolutionary link to a more primitive multifunctional innate defensive cell, position platelets at the interface between coagulation and immunity...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27769639/platelets-and-infection
#11
REVIEW
Carsten Deppermann, Paul Kubes
The primary function of platelets is to patrol the vasculature and seal vessel breaches to limit blood loss. However, it is becoming increasingly clear that they also contribute to pathophysiological conditions like thrombosis, atherosclerosis, stroke and infection. Severe sepsis is a devastating disease that claims hundreds of thousands of lives every year in North America and is a major burden to the public health system. Platelet surface receptors like GPIb, αIIbβ3, TLR2 and TLR4 are involved in direct platelet-bacteria interactions...
December 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/28340958/metabolism-and-acetylation-in-innate-immune-cell-function-and-fate
#12
REVIEW
Alanna M Cameron, Simon J Lawless, Edward J Pearce
Innate immunity is the first line of defense against invading pathogens. Changes in both metabolism and chromatin accessibility contribute to the shaping of these innate immune responses, and we are beginning to appreciate that cross-talk between these two systems plays an important role in determining innate immune cell differentiation and function. In this review we focus on acetylation, a post-translational modification important for both regulating chromatin accessibility by modulating histone function, and for functional regulation of non-histone proteins, which has many links to both immune signaling and metabolism...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27938849/preface
#13
EDITORIAL
Anne F McGettrick, Luke A J O'Neill
No abstract text is available yet for this article.
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27884543/immunometabolism-is-it-under-the-eye-of-the-clock
#14
REVIEW
James O Early, Anne M Curtis
Molecular clocks allow an organism to track time of day, providing the means to anticipate and respond to the daily changes within the environment. In mammals the molecular clock consists of a network of proteins that form auto-regulatory feedback loops that drive rhythms in physiology and behavior. In recent times the extent to which the molecular clock controls key metabolic and immune pathways has begun to emerge. For example, the main clock protein BMAL1 has been linked to mitochondrial metabolism, mitochondrial dynamics and various host defense pathways...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27825556/metabolic-pathways-in-t-cell-activation-and-lineage-differentiation
#15
REVIEW
Luís Almeida, Matthias Lochner, Luciana Berod, Tim Sparwasser
Recent advances in the field of immunometabolism support the concept that fundamental processes in T cell biology, such as TCR-mediated activation and T helper lineage differentiation, are closely linked to changes in the cellular metabolic programs. Although the major task of the intermediate metabolism is to provide the cell with a constant supply of energy and molecular precursors for the production of biomolecules, the dynamic regulation of metabolic pathways also plays an active role in shaping T cell responses...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27789087/adipose-tissue-at-the-nexus-of-systemic-and-cellular-immunometabolism
#16
REVIEW
Ayano C Kohlgruber, Nelson M LaMarche, Lydia Lynch
At the simplest interpretation of the word, Immunometabolism describes the intersection of the fields of immunology and metabolism. With rapidly growing interest in this field, the term has expanded, and now encompasses a variety of concepts and definitions shaped by an individual's scientific area of expertise, cell-type and tissue of interest, and biological approach. One scientist may be interested in investigating the intrinsic metabolic checkpoints that drive a M1 versus M2 macrophage response, while another may be interested in how macrophages affect systemic metabolism during obesity...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27780657/metabolic-reprogramming-inflammation-fuelling-the-host-response-to-pathogens
#17
REVIEW
Laura E Gleeson, Frederick J Sheedy
Successful immune responses to pathogens rely on efficient host innate processes to contain and limit bacterial growth, induce inflammatory response and promote antigen presentation for the development of adaptive immunity. This energy intensive process is regulated through multiple mechanisms including receptor-mediated signaling, control of phago-lysomal fusion events and promotion of bactericidal activities. Inherent macrophage activities therefore are dynamic and are modulated by signals and changes in the environment during infection...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27771141/polarization-and-asymmetry-in-t-cell-metabolism
#18
REVIEW
Marcin M Kamiński, Swantje Liedmann, Sandra Milasta, Douglas R Green
T cell activation results in a rapidly proliferating T cell endowed with a metabolic phenotype necessary for growth and division. However, before the cell can proceed towards this burst of cell division a phase of quiescence occurs, during which the basic mechanisms governing regulation of metabolic reprograming are established. This review focuses on key cellular processes controlling early metabolic regulation and how these circuits of metabolic control dictate distinct cellular fates upon the first asymmetric division...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27771140/integrating-immunometabolism-and-macrophage-diversity
#19
REVIEW
Maxim N Artyomov, Alexey Sergushichev, Joel D Schilling
Macrophages are heterogeneous cells that play a key role in inflammatory and tissue reparative responses. Over the past decade it has become clear that shifts in cellular metabolism are important determinants of macrophage function and phenotype. At the same time, our appreciation of macrophage diversity in vivo has also been increasing. Factors such as cell origin and tissue localization are now recognized as important variables that influence macrophage biology. Whether different macrophage populations also have unique metabolic phenotypes has not been extensively explored...
October 2016: Seminars in Immunology
https://www.readbyqxmd.com/read/27726910/the-modern-interleukin-1-superfamily-divergent-roles-in-obesity
#20
REVIEW
Man K S Lee, Laurent Yvan-Charvet, Seth L Masters, Andrew J Murphy
Obesity is now recognised as a chronic, low-grade inflammatory disease contributing to insulin resistance, type 2 diabetes (T2D) and cardiovascular disease (CVD). Multiple mechanisms leading to the low grade inflammation in this setting have been suggested. Due to the complexity and interconnection of inflammatory and metabolic responses, there also remains a need to fully elucidate the inflammatory mechanisms that control obesity and associated metabolic disorders. One important avenue in the field that has gained great attention is the interleukin (IL)-1 superfamily of cytokines that consist of IL-1β, IL-18 and IL-33...
October 2016: Seminars in Immunology
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