Abstract:
:The recognition of invading pathogens and endogenous molecules from damaged tissues by toll-like receptors (TLRs) triggers protective self-defense mechanisms. However, excessive TLR activation disrupts the immune homeostasis by sustained pro-inflammatory cytokines and chemokines production and consequently contributes to the development of many inflammatory and autoimmune diseases, such as systemic lupus erythematosus (SLE), infection-associated sepsis, atherosclerosis, and asthma. Therefore, inhibitors/antagonists targeting TLR signals may be beneficial to treat these disorders. In this article, we first briefly summarize the pathophysiological role of TLRs in the inflammatory diseases. We then focus on reviewing the current knowledge in both preclinical and clinical studies of various TLR antagonists/inhibitors for the prevention and treatment of inflammatory diseases. These compounds range from conventional small molecules to therapeutic biologics and nanodevices. In particular, nanodevices are emerging as a new class of potent TLR inhibitors for their unique properties in desired bio-distribution, sustained circulation, and preferred pharmacodynamic and pharmacokinetic profiles. More interestingly, the inhibitory activity of these nanodevices can be regulated through precise nano-functionalization, making them the next generation therapeutics or "nano-drugs." Although, significant efforts have been made in developing different kinds of new TLR inhibitors/antagonists, only limited numbers of them have undergone clinical trials, and none have been approved for clinical uses to date. Nevertheless, these findings and continuous studies of TLR inhibition highlight the pharmacological regulation of TLR signaling, especially on multiple TLR pathways, as future promising therapeutic strategy for various inflammatory and autoimmune diseases.
journal_name
Front Physioljournal_title
Frontiers in physiologyauthors
Gao W,Xiong Y,Li Q,Yang Hdoi
10.3389/fphys.2017.00508subject
Has Abstractpub_date
2017-07-19 00:00:00pages
508issn
1664-042Xjournal_volume
8pub_type
杂志文章,评审abstract::Resting-state EEG signals undergo rapid transition processes (RTPs) that glue otherwise stationary epochs. We study the fractal properties of RTPs in space and time, supporting the hypothesis that the brain works at a critical state. We discuss how the global intermittent dynamics of collective excitations is linked t...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2010.00128
更新日期:2010-09-15 00:00:00
abstract::A colony of social insects is not only an aggregation of individuals but also a functional unit. To achieve adaptive social behavior in fluctuating environmental conditions, in addition to coordination of physiological status in each individual, the whole colony is coordinated by interactions among colony members. The...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2014.00127
更新日期:2014-04-09 00:00:00
abstract::Exhaled breath carbon monoxide (eCO) is a candidate biomarker for non-invasive assessment of oxidative stress and respiratory diseases. Standard end-tidal CO analysis, however, cannot distinguish, whether eCO reflects endogenous CO production, lung diffusion properties or exogenous sources, and is unable to resolve a ...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00927
更新日期:2018-07-30 00:00:00
abstract::Background: Whole-body electromyostimulation (WB-EMS) gained increasing interest in sports within recent years. However, few intervention studies have examined the effects of WB-EMS on trained subjects in comparison to conventional strength training. Objective: The aim of the present mini-meta-analysis of 5 recently c...
journal_title:Frontiers in physiology
pub_type:
doi:10.3389/fphys.2019.01336
更新日期:2019-11-08 00:00:00
abstract::Background: Atherosclerotic carotid intima-media thickness (IMT) may be associated with alterations in the sensitivity of carotid baroreceptors. The aim of this study was to investigate the association between carotid IMT and the autonomic modulation of heart rate variability (HRV). Methods: A total of 101 subjects we...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2017.00248
更新日期:2017-04-26 00:00:00
abstract::Sensory receptors, including olfactory receptors (ORs), taste receptors (TRs), and opsins (Opns) have recently been found in a variety of non-sensory tissues where they have distinct physiological functions. As G protein-coupled receptors (GPCRs), these proteins can serve as important chemosensors by sensing and inter...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.574082
更新日期:2020-10-06 00:00:00
abstract::Huntington's disease (HD) is an inherited neurodegenerative disorder typified by involuntary body movements, and psychiatric and cognitive abnormalities. Many HD patients also exhibit metabolic changes including progressive weight loss and appetite dysfunction. Here we have investigated metabolic function in pre-manif...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2014.00231
更新日期:2014-06-23 00:00:00
abstract::Several studies have demonstrated an acute and chronic increase of brain-derived neurotrophic factor (BDNF) in relation to different types of physical exercise. Currently, many individuals seek physical training strategies that present different types of stimulation and volume/intensity. Thus, the extreme conditioning...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00823
更新日期:2018-07-03 00:00:00
abstract::Genetically modified mice provide a number of models for studying cardiac channelopathies related to cardiac Na(+) channel (SCN5A) abnormalities. We review key pathophysiological features in these murine models that may underlie clinical features observed in sinus node dysfunction and progressive cardiac conduction di...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2012.00234
更新日期:2012-07-06 00:00:00
abstract::During formation of the secondary palate in mammalian embryos, two vertically oriented palatal shelves rapidly elevate into a horizontal position above the tongue, meet at the midline, and fuse to form a single entity. Previous observations suggested that elevation occurs by a simple 90° rotation of the palatal shelve...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2016.00392
更新日期:2016-09-07 00:00:00
abstract::Hepatocellular carcinomas (HCCs) have different etiology and heterogenic genomic alterations lead to high complexity. The molecular features of HCC have largely been studied by gene expression and proteome profiling focusing on the correlations between the expression of specific markers and clinical data. Integration ...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00028
更新日期:2013-02-25 00:00:00
abstract::The Proline, Glutamate, Valine and Lysine-rich (PEVK) region of titin constitutes an entropic spring that provides passive tension to striated muscle. To study the functional and structural repercussions of a small reduction in the size of the PEVK region, we investigated skeletal muscles of a mouse with the constitut...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00494
更新日期:2020-05-29 00:00:00
abstract::As opposed to the standard tolerogenic apoptosis, immunogenic cell death (ICD) constitutes a type of cellular demise that elicits an adaptive immune response. ICD has been characterized in malignant cells following cytotoxic interventions, such as chemotherapy or radiotherapy. Briefly, ICD of cancer cells releases som...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.590479
更新日期:2020-11-12 00:00:00
abstract:Background:Heart transplant is the gold standard therapy for patients with advanced heart failure. Over 5,500 heart transplants are performed every year worldwide. Cardiac allograft vasculopathy (CAV) is a common complication post-heart transplant which reduces survival and often necessitates heart retransplantation. P...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00928
更新日期:2020-08-13 00:00:00
abstract::Deep learning (DL) has attracted the attention of computational toxicologists as it offers a potentially greater power for in silico predictive toxicology than existing shallow learning algorithms. However, contradicting reports have been documented. To further explore the advantages of DL over shallow learning, we co...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.01044
更新日期:2019-08-13 00:00:00
abstract::Background: The results from animal and human research indicate that acute intermittent hypoxia can enhance brain-derived neurotrophic factor (BDNF) plasma levels and gene expression. As BDNF is known to promote the differentiation of new neurons and the formation of synapses, it has been proposed to mediate adult neu...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01337
更新日期:2018-10-01 00:00:00
abstract::Cycling test such Wingate anaerobic test (WAnT) is used to measure anaerobic power (AP), but not anaerobic capacity (AC, i.e., the metabolic energy demand). However, in sports that do not involve cycling movements (Karate), the continuous jump for 30 s (vertical jumps for 30 s) has been extensively used to measure ana...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00543
更新日期:2018-05-15 00:00:00
abstract::Insufficient oxygen availability (hypoxia) is a precursor to numerous cardiovascular diseases, including atherosclerosis, pulmonary hypertension, and heart failure. The main site of hypoxic injury in the human body is the mitochondria, where oxygen acts as the final electron acceptor in the process of oxidative phosph...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2020.00774
更新日期:2020-07-15 00:00:00
abstract::Skeletal muscles are large cells with multiple nuclei that are precisely positioned. The importance of the correct nuclear position is highlighted by the correlation between mispositioned nuclei and muscle disease (Spiro et al., 1966; Gueneau et al., 2009). Myonuclei are generally considered to be equivalent and there...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01531
更新日期:2018-11-01 00:00:00
abstract::Finding an optimum for the cycling performance is not a trivial matter, since the literature shows the presence of many controversial aspects. In order to quantify different levels of performance, several indexes have been defined and used in many studies, reflecting variations in physiological and biomechanical facto...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2013.00116
更新日期:2013-05-21 00:00:00
abstract::Unlike most excitable cells, certain syncytial smooth muscle cells are known to exhibit spontaneous action potentials of varying shapes and sizes. These differences in shape are observed even in electrophysiological recordings obtained from a single cell. The origin and physiological relevance of this phenomenon are c...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.01300
更新日期:2018-09-20 00:00:00
abstract::Many animals use a diverse repertoire of complex acoustic signals to convey different types of information to other animals. The information in each vocalization therefore must be coded by neurons in the auditory system. One way in which the auditory system may discriminate among different vocalizations is by having h...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2014.00140
更新日期:2014-04-16 00:00:00
abstract::Mild normobaric hypoxia (NH) and modest exercise have multiple beneficial effects on health, but the changes in physiological function induced by NH and/or exercise remain unclear. The purpose of this investigation was to examine the specific effects of NH and/or exercise on cardiac function and myocardial structure a...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2019.01610
更新日期:2020-01-21 00:00:00
abstract::Domestic pig molars provide an interesting system to study the biomineralization process. The large size, thick enamel and complex crown morphology make pig molars relatively similar to human molars. However, compared to human molars, pig molars develop considerably faster. Here we use microCT to image the developing ...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00071
更新日期:2018-02-09 00:00:00
abstract::Elderly healthy individuals have a reduced exercise tolerance and a decreased left ventricle inotropic reserve related to increased vascular afterload, arterial-ventricular load mismatching, physical deconditioning and impaired autonomic regulation (the so called "β-adrenergic desensitization"). Adrenergic responsiven...
journal_title:Frontiers in physiology
pub_type: 杂志文章,评审
doi:10.3389/fphys.2013.00396
更新日期:2014-01-09 00:00:00
abstract::There are animal species that have adapted to life at high altitude and hypobaric hypoxia conditions in the Andean highlands. One such species is the llama (Lama glama), which seem to have developed efficient protective mechanisms to avoid maladaptation resulting from chronic hypoxia, such as a resistance to the devel...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2018.00606
更新日期:2018-05-29 00:00:00
abstract::The senescence of vascular smooth muscle cells (VSMCs) has been implicated as a causal pro-inflammatory mechanism for cardiovascular disease development and progression of atherosclerosis, the instigator of ischemic heart disease. Contemporary limitations related to studying this cellular population and senescence-rel...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.00520
更新日期:2020-05-25 00:00:00
abstract::Human physiological signals are inherently rhythmic and have a hallmark feature in that even distant intrasignal measurements are related to each other. This relationship is termed long-range correlation and has been recognized as an indicator of the optimal state of the observed physiological systems, among which the...
journal_title:Frontiers in physiology
pub_type:
doi:10.3389/fphys.2020.00562
更新日期:2020-06-23 00:00:00
abstract:AIM:The signaling pathways involved in the regulation of cardiac GLUT4 translocation/glucose uptake and CD36 translocation/long-chain fatty acid uptake are not fully understood. We compared in heart/muscle-specific PKC-λ knockout mice the roles of atypical PKCs (PKC-ζ and PKC-λ) in regulating cardiac glucose and fatty ...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2012.00361
更新日期:2012-09-11 00:00:00
abstract:Purpose:To examine physiological and technical responses to repeated-sprint training in normobaric hypoxia at ∼3,000 m (RSH, n = 11) or in normoxia (RSN, n = 11) compared to a control group (CON, n = 8) in well-trained tennis players. Participants were 28.8 ± 5.9 years old without any previous experience of training in...
journal_title:Frontiers in physiology
pub_type: 杂志文章
doi:10.3389/fphys.2020.588821
更新日期:2020-12-18 00:00:00