Connexin 43 hemichannels and intracellular signaling in bone cells.

Abstract:

:Cell function and survival are controlled by intracellular signals, and modulated by surrounding cells and the extracellular environment. Connexin channels participate in these processes by mediating cell-to-cell communication. In bone cells, gap junction channels were detected in the early 1970s, and are present among bone resorbing osteoclasts, bone forming osteoblasts, and osteocytes - mature osteoblasts embedded in the mineralized matrix. These channels are composed mainly by Cx43, although the expression of other connexins (45, 46, and 37) has also been reported. It is now believed that undocked Cx43 hemichannels (connexons) formed in unopposed cell membranes facing the extracellular environment participate in the interaction of bone cells with the extracellular environment, and in their communication with neighboring cells. Thus, we and others demonstrated the presence of active hemichannels in osteoblastic and osteocytic cells. These hemichannels open in response to pharmacological and mechanical stimulation. In particular, preservation of the viability of osteoblasts and osteocytes by the anti-osteoporotic drugs bisphosphonates depends on Cx43 expression in vitro and in vivo, and is mediated by undocked hemichannels. Cx43 hemichannels are also required for the release of prostaglandins and ATP by osteocytes, and for cell survival induced by mechanical stimulation in vitro. Moreover, they are required for the anti-apoptotic effect of parathyroid hormone in osteoblastic cells. This review summarizes the current knowledge on the presence and function of undocked connexons, and the role of hemichannel regulation for the maintenance of bone cell viability and, potentially, bone health.

journal_name

Front Physiol

journal_title

Frontiers in physiology

authors

Plotkin LI

doi

10.3389/fphys.2014.00131

subject

Has Abstract

pub_date

2014-04-04 00:00:00

pages

131

issn

1664-042X

journal_volume

5

pub_type

杂志文章,评审
  • Effects of Mindfulness-Based Interventions on Salivary Cortisol in Healthy Adults: A Meta-Analytical Review.

    abstract::Objective: The aim of the present study was to elucidate the effects of Mindfulness-based interventions (MBIs) on salivary cortisol levels in healthy adult populations. Method: We conducted a systematic review and meta-analysis of randomized controlled trials (RCTs), published between January 1980 and June 2015 in Pub...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2016.00471

    authors: Sanada K,Montero-Marin J,Alda Díez M,Salas-Valero M,Pérez-Yus MC,Morillo H,Demarzo MM,García-Toro M,García-Campayo J

    更新日期:2016-10-19 00:00:00

  • Combination ergotamine and caffeine improves seated blood pressure and presyncopal symptoms in autonomic failure.

    abstract::Severely affected patients with autonomic failure require pressor agents to counteract the blood pressure fall and improve presyncopal symptoms upon standing. Previous studies suggest that combination ergotamine and caffeine may be effective in the treatment of autonomic failure, but the efficacy of this drug has not ...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2014.00270

    authors: Arnold AC,Ramirez CE,Choi L,Okamoto LE,Gamboa A,Diedrich A,Raj SR,Robertson D,Biaggioni I,Shibao CA

    更新日期:2014-07-24 00:00:00

  • Coherence and Coupling Functions Reveal Microvascular Impairment in Treated Hypertension.

    abstract::The complex interactions that give rise to heart rate variability (HRV) involve coupled physiological oscillators operating over a wide range of different frequencies and length-scales. Based on the premise that interactions are key to the functioning of complex systems, the time-dependent deterministic coupling param...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2017.00749

    authors: Ticcinelli V,Stankovski T,Iatsenko D,Bernjak A,Bradbury AE,Gallagher AR,Clarkson PBM,McClintock PVE,Stefanovska A

    更新日期:2017-10-13 00:00:00

  • Apelin and energy metabolism.

    abstract::A wide range of adipokines identified over the past years has allowed considering the white adipose tissue as a secretory organ closely integrated into overall physiological and metabolic control. Apelin, a ubiquitously expressed peptide was known to exert different physiological effects mainly on the cardiovascular s...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章,评审

    doi:10.3389/fphys.2015.00115

    authors: Bertrand C,Valet P,Castan-Laurell I

    更新日期:2015-04-10 00:00:00

  • Annexin II Light Chain p11 Interacts With ENaC to Increase Functional Activity at the Membrane.

    abstract::The epithelial Na+ channel (ENaC) provides for Na+ absorption in various types of epithelia including the kidney, lung, and colon where ENaC is localized to the apical membrane to enable Na+ entry into the cell. The degree of Na+ entry via ENaC largely depends on the number of active channels localized to the cell mem...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2019.00007

    authors: Cheung TT,Ismail NAS,Moir R,Arora N,McDonald FJ,Condliffe SB

    更新日期:2019-02-08 00:00:00

  • Influence of Positive End-Expiratory Pressure Titration on the Effects of Pronation in Acute Respiratory Distress Syndrome: A Comprehensive Experimental Study.

    abstract::Prone position can reduce mortality in acute respiratory distress syndrome (ARDS), but several studies found variable effects on oxygenation and lung mechanics. It is unclear whether different positive end-expiratory pressure (PEEP) titration techniques modify the effect of prone position. We tested, in an animal mode...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.00179

    authors: Scaramuzzo G,Ball L,Pino F,Ricci L,Larsson A,Guérin C,Pelosi P,Perchiazzi G

    更新日期:2020-03-12 00:00:00

  • Immune response of the Caribbean sea fan, Gorgonia ventalina, exposed to an Aplanochytrium parasite as revealed by transcriptome sequencing.

    abstract::Coral reef communities are undergoing marked declines due to a variety of stressors including disease. The sea fan coral, Gorgonia ventalina, is a tractable study system to investigate mechanisms of immunity to a naturally occurring pathogen. Functional studies in Gorgonia ventalina immunity indicate that several key ...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2013.00180

    authors: Burge CA,Mouchka ME,Harvell CD,Roberts S

    更新日期:2013-07-25 00:00:00

  • Effect of a Blend of Zingiber officinale Roscoe and Bixa orellana L. Herbal Supplement on the Recovery of Delayed-Onset Muscle Soreness Induced by Unaccustomed Eccentric Resistance Training: A Randomized, Triple-Blind, Placebo-Controlled Trial.

    abstract:Background:There is an increasing interest in the use of eccentric muscle exercise to improve physical condition, especially with regards to its health-related benefits. However, it is known that unaccustomed eccentric exercise causes muscle damage and delayed pain, commonly defined as "delayed onset muscle soreness" (...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.00826

    authors: Dominguez-Balmaseda D,Diez-Vega I,Larrosa M,San Juan AF,Issaly N,Moreno-Pérez D,Burgos S,Sillero-Quintana M,Gonzalez C,Bas A,Roller M,Pérez-Ruiz M

    更新日期:2020-07-21 00:00:00

  • Increased PIO2 at Exhaustion in Hypoxia Enhances Muscle Activation and Swiftly Relieves Fatigue: A Placebo or a PIO2 Dependent Effect?

    abstract::To determine the level of hypoxia from which muscle activation (MA) is reduced during incremental exercise to exhaustion (IE), and the role played by PIO2 in this process, ten volunteers (21 ± 2 years) performed four IE in severe acute hypoxia (SAH) (PIO2 = 73 mmHg). Upon exhaustion, subjects were asked to continue ex...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2016.00333

    authors: Torres-Peralta R,Losa-Reyna J,Morales-Alamo D,González-Izal M,Pérez-Suárez I,Ponce-González JG,Izquierdo M,Calbet JA

    更新日期:2016-08-17 00:00:00

  • Corrigendum: Partial Weight-Bearing in Female Rats: Proof of Concept in a Martian-Gravity Analog.

    abstract::[This corrects the article DOI: 10.3389/fphys.2020.00302.]. ...

    journal_title:Frontiers in physiology

    pub_type: 已发布勘误

    doi:10.3389/fphys.2020.00672

    authors: Semple C,Riveros D,Nagy JA,Rutkove SB,Mortreux M

    更新日期:2020-07-03 00:00:00

  • Crayfish Self-Administer Amphetamine in a Spatially Contingent Task.

    abstract::Natural reward is an essential element of any organism's ability to adapt to environmental variation. Its underlying circuits and mechanisms guide the learning process as they help associate an event, or cue, with the perception of an outcome's value. More generally, natural reward serves as the fundamental generator ...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2018.00433

    authors: Datta U,van Staaden M,Huber R

    更新日期:2018-05-14 00:00:00

  • Solenoidal Micromagnetic Stimulation Enables Activation of Axons With Specific Orientation.

    abstract::Electrical stimulation of the central and peripheral nervous systems - such as deep brain stimulation, spinal cord stimulation, and epidural cortical stimulation are common therapeutic options increasingly used to treat a large variety of neurological and psychiatric conditions. Despite their remarkable success, there...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2018.00724

    authors: Golestanirad L,Gale JT,Manzoor NF,Park HJ,Glait L,Haer F,Kaltenbach JA,Bonmassar G

    更新日期:2018-07-27 00:00:00

  • Comparative Transcriptome and Proteome Analysis of Heat Acclimation in Predatory Mite Neoseiulus barkeri.

    abstract::In our previous study, we reported a high temperature adapted strain (HTAS) of the predatory mite Neoseiulus barkeri was artificially selected via a long-term heat acclimation (35°C) and frequent heat hardenings. To understand the molecular basis of heat acclimation, 'omics' analyses were performed to compare the diff...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.00426

    authors: Tian CB,Li YY,Huang J,Chu WQ,Wang ZY,Liu H

    更新日期:2020-04-29 00:00:00

  • Fiber Type-Specific Satellite Cell Content in Cyclists Following Heavy Training with Carbohydrate and Carbohydrate-Protein Supplementation.

    abstract::The central purpose of this study was to evaluate the fiber type-specific satellite cell and myonuclear responses of endurance-trained cyclists to a block of intensified training, when supplementing with carbohydrate (CHO) vs. carbohydrate-protein (PRO). In a crossover design, endurance-trained cyclists (n = 8) perfor...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2016.00550

    authors: McKenzie AI,D'Lugos AC,Saunders MJ,Gworek KD,Luden ND

    更新日期:2016-11-16 00:00:00

  • Association of Basal hyperglucagonemia with impaired glucagon counterregulation in type 1 diabetes.

    abstract::Glucagon counterregulation (GCR) protects against hypoglycemia, but is impaired in type 1 diabetes (T1DM). A model-based analysis of in vivo animal data predicts that the GCR defects are linked to basal hyperglucagonemia. To test this hypothesis we studied the relationship between basal glucagon (BasG) and the GCR res...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2012.00040

    authors: Farhy LS,Chan A,Breton MD,Anderson SM,Kovatchev BP,McCall AL

    更新日期:2012-02-28 00:00:00

  • Dysbiosis-Associated Enteric Glial Cell Immune-Activation and Redox Imbalance Modulate Tight Junction Protein Expression in Gulf War Illness Pathology.

    abstract::About 14% of veterans who suffer from Gulf war illness (GWI) complain of some form of gastrointestinal disorder but with no significant markers of clinical pathology. Our previous studies have shown that exposure to GW chemicals resulted in altered microbiome which was associated with damage associated molecular patte...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2019.01229

    authors: Kimono D,Sarkar S,Albadrani M,Seth R,Bose D,Mondal A,Li Y,Kar AN,Nagarkatti M,Nagarkatti P,Sullivan K,Janulewicz P,Lasley S,Horner R,Klimas N,Chatterjee S

    更新日期:2019-10-14 00:00:00

  • Applications of Genome-Scale Metabolic Models in Biotechnology and Systems Medicine.

    abstract::Genome-scale metabolic models (GEMs) have become a popular tool for systems biology, and they have been used in many fields such as industrial biotechnology and systems medicine. Since more and more studies are being conducted using GEMs, they have recently received considerable attention. In this review, we introduce...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章,评审

    doi:10.3389/fphys.2015.00413

    authors: Zhang C,Hua Q

    更新日期:2016-01-07 00:00:00

  • Long-Term Exercise Reduces Formation of Tubular Aggregates and Promotes Maintenance of Ca2+ Entry Units in Aged Muscle.

    abstract::Tubular aggregates (TAs) in skeletal muscle fibers are unusual accumulation of sarcoplasmic reticulum (SR) tubes that are found in different disorders including TA myopathy (TAM). TAM is a muscular disease characterized by muscle pain, cramping, and weakness that has been recently linked to mutations in STIM1 and ORAI...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.601057

    authors: Boncompagni S,Pecorai C,Michelucci A,Pietrangelo L,Protasi F

    更新日期:2021-01-05 00:00:00

  • Genetic evidence for conserved non-coding element function across species-the ears have it.

    abstract::Comparison of genomic sequences from diverse vertebrate species has revealed numerous highly conserved regions that do not appear to encode proteins or functional RNAs. Often these "conserved non-coding elements," or CNEs, can direct gene expression to specific tissues in transgenic models, demonstrating they have reg...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2014.00007

    authors: Turner EE,Cox TC

    更新日期:2014-01-21 00:00:00

  • Comorbidity Assessment Is Essential During COVID-19 Treatment.

    abstract::Coronavirus disease 2019 (COVID-19) caused by SARS-CoV2 is associated with various comorbidities; cardiovascular diseases, hypertension, diabetes, liver, lung diseases, and neurological ailments. The majority of the dysfunctions mentioned above are often associated with endothelial deterioration, indicating that endot...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.00984

    authors: Jakhmola S,Indari O,Baral B,Kashyap D,Varshney N,Das A,Chatterjee S,Jha HC

    更新日期:2020-08-04 00:00:00

  • Hemopexin and haptoglobin: allies against heme toxicity from hemoglobin not contenders.

    abstract::The goal here is to describe our current understanding of heme metabolism and the deleterious effects of "free" heme on immunological processes, endothelial function, systemic inflammation, and various end-organ tissues (e.g., kidney, lung, liver, etc.), with particular attention paid to the role of hemopexin (HPX). B...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章,评审

    doi:10.3389/fphys.2015.00187

    authors: Smith A,McCulloh RJ

    更新日期:2015-06-30 00:00:00

  • Identification of displaced endometrial glands and embryonic duct remnants in female fetal reproductive tract: possible pathogenetic role in endometriotic and pelvic neoplastic processes.

    abstract:BACKGROUND:Recent findings strongly promoted the hypothesis that common pelvic gynecological diseases including endometriosis and ovarian neoplasia may develop de novo from ectopic endometrial-like glands and/or embryonic epithelial remnants. To verify the frequency, the anatomical localization and the phenotype of mis...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2012.00444

    authors: Bouquet de Jolinière J,Ayoubi JM,Lesec G,Validire P,Goguin A,Gianaroli L,Dubuisson JB,Feki A,Gogusev J

    更新日期:2012-12-03 00:00:00

  • Thiamethoxam Resistance in Aphis gossypii Glover Relies on Multiple UDP-Glucuronosyltransferases.

    abstract::Uridine diphosphate (UDP)-glycosyltransferases (UGTs) are major phase II enzymes that conjugate a variety of small lipophilic molecules with UDP sugars and alter them into more water-soluble metabolites. Therefore, glucosidation plays a major role in the inactivation and excretion of a great variety of both endogenous...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2018.00322

    authors: Pan Y,Tian F,Wei X,Wu Y,Gao X,Xi J,Shang Q

    更新日期:2018-04-03 00:00:00

  • Low-Volume Intense Exercise Elicits Post-exercise Hypotension and Subsequent Hypervolemia, Irrespective of Which Limbs Are Exercised.

    abstract:INTRODUCTION:Exercise reduces arterial and central venous blood pressures during recovery, which contributes to its valuable anti-hypertensive effects and to facilitating hypervolemia. Repeated sprint exercise potently improves metabolic function, but its cardiovascular effects (esp. hematological) are less well-charac...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2016.00199

    authors: Graham MJ,Lucas SJ,Francois ME,Stavrianeas S,Parr EB,Thomas KN,Cotter JD

    更新日期:2016-05-31 00:00:00

  • Treatment With Gemfibrozil Prevents the Progression of Chronic Kidney Disease in Obese Dahl Salt-Sensitive Rats.

    abstract::Recently, we reported that Dahl salt-sensitive leptin receptor mutant (SSLepRmutant) rats exhibit dyslipidemia and renal lipid accumulation independent of hyperglycemia that progresses to chronic kidney disease (CKD). Therefore, in the current study, we examined the effects of gemfibrozil, a lipid-lowering drug (200 m...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.566403

    authors: Shields CA,Poudel B,McPherson KC,Brown AK,Ekperikpe US,Browning E,Sutton L,Cornelius DC,Williams JM

    更新日期:2020-09-18 00:00:00

  • Atrial Fibrillation Mechanisms and Implications for Catheter Ablation.

    abstract::AF is a heterogeneous rhythm disorder that is related to a wide spectrum of etiologies and has broad clinical presentations. Mechanisms underlying AF are complex and remain incompletely understood despite extensive research. They associate interactions between triggers, substrate and modulators including ionic and ana...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章,评审

    doi:10.3389/fphys.2018.01458

    authors: Cheniti G,Vlachos K,Pambrun T,Hooks D,Frontera A,Takigawa M,Bourier F,Kitamura T,Lam A,Martin C,Dumas-Pommier C,Puyo S,Pillois X,Duchateau J,Klotz N,Denis A,Derval N,Jais P,Cochet H,Hocini M,Haissaguerre M,Sache

    更新日期:2018-10-17 00:00:00

  • Gonad-Specific Transcriptomes Reveal Differential Expression of Gene and miRNA Between Male and Female of the Discus Fish (Symphysodon aequifasciatus).

    abstract::The discus fish (Symphysodon aequifasciatus) is an ornamental fish that is well-known around the world. In artificial reproduction, they must be matched by one male and one female, whereas phenotype investigation indicated that there are no significant differences in appearance between males and females, which causes ...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2020.00754

    authors: Fu Y,Xu Z,Wen B,Gao J,Chen Z

    更新日期:2020-08-11 00:00:00

  • Effects of 6-Weeks High-Intensity Interval Training in Schoolchildren with Insulin Resistance: Influence of Biological Maturation on Metabolic, Body Composition, Cardiovascular and Performance Non-responses.

    abstract::Background: Previous studies have observed significant heterogeneity in the magnitude of change in measures of metabolic response to exercise training. There are a lack of studies examining the prevalence of non-responders (NRs) in children while considering other potential environmental factors involved such as biolo...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2017.00444

    authors: Alvarez C,Ramírez-Campillo R,Ramírez-Vélez R,Izquierdo M

    更新日期:2017-06-29 00:00:00

  • Contribution of Post-translational Phosphorylation to Sarcomere-Linked Cardiomyopathy Phenotypes.

    abstract::Secondary shifts develop in post-translational phosphorylation of sarcomeric proteins in multiple animal models of inherited cardiomyopathy. These signaling alterations together with the primary mutation are predicted to contribute to the overall cardiac phenotype. As a result, identification and integration of post-t...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2016.00407

    authors: Westfall MV

    更新日期:2016-09-14 00:00:00

  • Tonic neuromodulation of the inspiratory rhythm generator.

    abstract::The generation of neural network dynamics relies on the interactions between the intrinsic and synaptic properties of their neural components. Moreover, neuromodulators allow networks to change these properties and adjust their activity to specific challenges. Endogenous continuous ("tonic") neuromodulation can regula...

    journal_title:Frontiers in physiology

    pub_type: 杂志文章

    doi:10.3389/fphys.2012.00253

    authors: Peña-Ortega F

    更新日期:2012-07-20 00:00:00