Function (Oxford, England)最新文献

筛选
英文 中文
Serendipity in senescence. 衰老中的意外。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqac064
R A North
{"title":"Serendipity in senescence.","authors":"R A North","doi":"10.1093/function/zqac064","DOIUrl":"https://doi.org/10.1093/function/zqac064","url":null,"abstract":"","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/86/66/zqac064.PMC9809900.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10494832","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Overactive ATP-Sensitive K+ Channels Compromise Lymphatic Contractile Function in Cantú Syndrome. atp敏感的K+通道过度活跃损害Cantú综合征的淋巴收缩功能。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqad030
Qadeer Aziz
{"title":"Overactive ATP-Sensitive K<sup>+</sup> Channels Compromise Lymphatic Contractile Function in Cantú Syndrome.","authors":"Qadeer Aziz","doi":"10.1093/function/zqad030","DOIUrl":"https://doi.org/10.1093/function/zqad030","url":null,"abstract":"he lymphatic system is an extensive network of vessels that uns in parallel to the blood vasculature. Both networks play cruial roles in nourishing and protecting the body. Alongside its ole in “draina ge,” the l ymphatic system is also associated with ultisystem functions and disorders, including metabolic disrders, obesity, neurological disorders, and cardiac growth and e pair. Hence, a better understanding of its structural and funcional physiology and pathophysiology could help in the develpment of future therapeutics for not only traditional lymphatic isorders such as primary and secondary lymphedema but also n the potential treatment of organ-specific functions. Lymphatic vessels, like blood vessels, are composed of a ayer of endothelial cells surrounded by a thin layer of smooth uscle cells. Electrophysiologically, lymphatic smooth muscle LSM) exhibits intrinsic pacemaker properties that allow sponaneous action potential firing, sync hronized contr action w av es, nd facilitation of lymph propulsion against pressure gradients. hile the ion channels r esponsib le for the pacemaker proprties of LSM cells have not been clearly defined, L-type Ca 2 + hannels and ATP-sensiti v e K + (K ATP ) channels are present and rucial for LSM contractility and modulation of spontaneous ontractility, r especti v el y. 1 As well as being present in tissues hroughout the body, K ATP channels are prominently expressed n vascular smooth muscle where they regulate vascular tone nd ther efor e b lood flow. 2–4 Functional K ATP channels ar e a etero-octomeric complex of 4 pore-forming potassium chanel subunits (either Kir6.1 or Kir6.2) and 4 r egulator y sulphonyur ea r ece ptor subunits (either SUR1, SUR2A, or SUR2B). It is now ell esta b lished that the “v ascular smooth m uscle” K ATP chanel is formed of Kir6.1 and SUR2B. 2–4 Evidence from molecular","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10278974/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9713061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Dissociation Between Neuronal and Astrocytic Calcium Activity in Response to Locomotion in Mice. 小鼠运动反应中神经元和星形细胞钙活性的分离。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqad019
Anna Fedotova, Alexey Brazhe, Maxim Doronin, Dmytro Toptunov, Evgeny Pryazhnikov, Leonard Khiroug, Alexei Verkhratsky, Alexey Semyanov
{"title":"Dissociation Between Neuronal and Astrocytic Calcium Activity in Response to Locomotion in Mice.","authors":"Anna Fedotova,&nbsp;Alexey Brazhe,&nbsp;Maxim Doronin,&nbsp;Dmytro Toptunov,&nbsp;Evgeny Pryazhnikov,&nbsp;Leonard Khiroug,&nbsp;Alexei Verkhratsky,&nbsp;Alexey Semyanov","doi":"10.1093/function/zqad019","DOIUrl":"https://doi.org/10.1093/function/zqad019","url":null,"abstract":"<p><p>Locomotion triggers a coordinated response of both neurons and astrocytes in the brain. Here we performed calcium (Ca<sup>2+</sup>) imaging of these two cell types in the somatosensory cortex in head-fixed mice moving on the airlifted platform. Ca<sup>2+</sup> activity in astrocytes significantly increased during locomotion from a low quiescence level. Ca<sup>2+</sup> signals first appeared in the distal processes and then propagated to astrocytic somata, where it became significantly larger and exhibited oscillatory behaviour. Thus, astrocytic soma operates as both integrator and amplifier of Ca<sup>2+</sup> signal. In neurons, Ca<sup>2+</sup> activity was pronounced in quiescent periods and further increased during locomotion. Neuronal Ca<sup>2+</sup> concentration ([Ca<sup>2+</sup>]<sub>i</sub>) rose almost immediately following the onset of locomotion, whereas astrocytic Ca<sup>2+</sup> signals lagged by several seconds. Such a long lag suggests that astrocytic [Ca<sup>2+</sup>]<sub>i</sub> elevations are unlikely to be triggered by the activity of synapses among local neurons. Ca<sup>2+</sup> responses to pairs of consecutive episodes of locomotion did not significantly differ in neurons, while were significantly diminished in response to the second locomotion in astrocytes. Such astrocytic refractoriness may arise from distinct mechanisms underlying Ca<sup>2+</sup> signal generation. In neurons, the bulk of Ca<sup>2+</sup> enters through the Ca<sup>2+</sup> channels in the plasma membrane allowing for steady-level Ca<sup>2+</sup> elevations in repetitive runs. Astrocytic Ca<sup>2+</sup> responses originate from the intracellular stores, the depletion of which affects subsequent Ca<sup>2+</sup> signals. Functionally, neuronal Ca<sup>2+</sup> response reflects sensory input processed by neurons. Astrocytic Ca<sup>2+</sup> dynamics is likely to provide metabolic and homeostatic support within the brain active milieu.</p>","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10278990/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9713065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Towards Astroglia-based Noradrenergic Hypothesis of Alzheimer's Disease. 基于星形胶质细胞的阿尔茨海默病去肾上腺素能假说的探讨。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqac060
Giampiero Leanza, Robert Zorec
{"title":"Towards Astroglia-based Noradrenergic Hypothesis of Alzheimer's Disease.","authors":"Giampiero Leanza,&nbsp;Robert Zorec","doi":"10.1093/function/zqac060","DOIUrl":"https://doi.org/10.1093/function/zqac060","url":null,"abstract":"1Dept. of Drug and Health Sciences, University of Catania, Piazza Università, 2, 95131 Catania, Italy, 2Laboratory of Neuroendocrinology-Molecular Cell Physiology, Institute of Pathophysiology, Faculty of Medicine, University of Ljubljana, 1000 Ljubljana, Slovenia and 3Laboratory of Cell Engineering, Celica Biomedical, 1000 Ljubljana, Slovenia ∗Address correspondence to R.Z. (e-mail: robert.zorec@mf.uni.lj.si)","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/82/eb/zqac060.PMC9789502.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10680269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mitochondrial ATP Production is Required for Endothelial Cell Control of Vascular Tone. 线粒体ATP的产生是内皮细胞控制血管张力所必需的。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqac063
Calum Wilson, Matthew D Lee, Charlotte Buckley, Xun Zhang, John G McCarron
{"title":"Mitochondrial ATP Production is Required for Endothelial Cell Control of Vascular Tone.","authors":"Calum Wilson,&nbsp;Matthew D Lee,&nbsp;Charlotte Buckley,&nbsp;Xun Zhang,&nbsp;John G McCarron","doi":"10.1093/function/zqac063","DOIUrl":"https://doi.org/10.1093/function/zqac063","url":null,"abstract":"<p><p>Arteries and veins are lined by nonproliferating endothelial cells that play a critical role in regulating blood flow. Endothelial cells also regulate tissue perfusion, metabolite exchange, and thrombosis. It is thought that endothelial cells rely on ATP generated via glycolysis, rather than mitochondrial oxidative phosphorylation, to fuel each of these energy-demanding processes. However, endothelial metabolism has mainly been studied in the context of proliferative cells, and little is known about energy production in endothelial cells within the fully formed vascular wall. Using intact arteries isolated from rats and mice, we show that inhibiting mitochondrial respiration disrupts endothelial control of vascular tone. Basal, mechanically activated, and agonist-evoked calcium activity in intact artery endothelial cells are each prevented by inhibiting mitochondrial ATP synthesis. Agonist-evoked calcium activity was also inhibited by blocking the transport of pyruvate, the master fuel for mitochondrial energy production, through the mitochondrial pyruvate carrier. The role for mitochondria in endothelial cell energy production is independent of species, sex, or vascular bed. These data show that a mitochondrial ATP supply is necessary for calcium-dependent, nitric oxide-mediated endothelial control of vascular tone, and identifies the critical role of endothelial mitochondrial energy production in fueling perfused blood vessel function.</p>","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9909368/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10799995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 8
Comparing Transgenic Production to Supplementation of ω-3 PUFA Reveals Distinct But Overlapping Mechanisms Underlying Protection Against Metabolic and Hepatic Disorders. 比较转基因生产和补充ω-3 PUFA揭示了不同但重叠的机制,其对代谢和肝脏疾病的保护。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqac069
Noëmie Daniel, Mélanie Le Barz, Patricia L Mitchell, Thibault V Varin, Isabelle Bourdeau Julien, Dominique Farabos, Geneviève Pilon, Josée Gauthier, Carole Garofalo, Jing X Kang, Jocelyn Trottier, Olivier Barbier, Denis Roy, Benoit Chassaing, Emile Levy, Frédéric Raymond, Antonin Lamaziere, Nicolas Flamand, Cristoforo Silvestri, Christian Jobin, Vincenzo Di Marzo, André Marette
{"title":"Comparing Transgenic Production to Supplementation of ω-3 PUFA Reveals Distinct But Overlapping Mechanisms Underlying Protection Against Metabolic and Hepatic Disorders.","authors":"Noëmie Daniel,&nbsp;Mélanie Le Barz,&nbsp;Patricia L Mitchell,&nbsp;Thibault V Varin,&nbsp;Isabelle Bourdeau Julien,&nbsp;Dominique Farabos,&nbsp;Geneviève Pilon,&nbsp;Josée Gauthier,&nbsp;Carole Garofalo,&nbsp;Jing X Kang,&nbsp;Jocelyn Trottier,&nbsp;Olivier Barbier,&nbsp;Denis Roy,&nbsp;Benoit Chassaing,&nbsp;Emile Levy,&nbsp;Frédéric Raymond,&nbsp;Antonin Lamaziere,&nbsp;Nicolas Flamand,&nbsp;Cristoforo Silvestri,&nbsp;Christian Jobin,&nbsp;Vincenzo Di Marzo,&nbsp;André Marette","doi":"10.1093/function/zqac069","DOIUrl":"https://doi.org/10.1093/function/zqac069","url":null,"abstract":"<p><p>We compared endogenous ω-3 PUFA production to supplementation for improving obesity-related metabolic dysfunction. Fat-1 transgenic mice, who endogenously convert exogenous ω-6 to ω-3 PUFA, and wild-type littermates were fed a high-fat diet and a daily dose of either ω-3 or ω-6 PUFA-rich oil for 12 wk. The endogenous ω-3 PUFA production improved glucose intolerance and insulin resistance but not hepatic steatosis. Conversely, ω-3 PUFA supplementation fully prevented hepatic steatosis but failed to improve insulin resistance. Both models increased hepatic levels of ω-3 PUFA-containing 2-monoacylglycerol and N-acylethanolamine congeners, and reduced levels of ω-6 PUFA-derived endocannabinoids with ω-3 PUFA supplementation being more efficacious. Reduced hepatic lipid accumulation associated with the endocannabinoidome metabolites EPEA and DHEA, which was causally demonstrated by lower lipid accumulation in oleic acid-treated hepatic cells treated with these metabolites. While both models induced a significant fecal enrichment of the beneficial <i>Allobaculum</i> genus, mice supplemented with ω-3 PUFA displayed additional changes in the gut microbiota functions with a significant reduction of fecal levels of the proinflammatory molecules lipopolysaccharide and flagellin. Multiple-factor analysis identify that the metabolic improvements induced by ω-3 PUFAs were accompanied by a reduced production of the proinflammatory cytokine TNFα, and that ω-3 PUFA supplementation had a stronger effect on improving the hepatic fatty acid profile than endogenous ω-3 PUFA. While endogenous ω-3 PUFA production preferably improves glucose tolerance and insulin resistance, ω-3 PUFA intake appears to be required to elicit selective changes in hepatic endocannabinoidome signaling that are essential to alleviate high-fat diet-induced hepatic steatosis.</p>","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9909367/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9446287","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Some Like It Hot: Dynamic Control of Cav2.2 Channels By Chili Peppers. 辣椒对Cav2.2通道的动态控制
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqac066
Paz Duran, Rajesh Khanna
{"title":"Some Like It Hot: Dynamic Control of Cav2.2 Channels By Chili Peppers.","authors":"Paz Duran,&nbsp;Rajesh Khanna","doi":"10.1093/function/zqac066","DOIUrl":"https://doi.org/10.1093/function/zqac066","url":null,"abstract":"Spicy meals causes the production of happy endorphins together with the triggering of heat and pain, similar to a runner’s high. The active ingredient in hot chili peppers that causes their distinctive burning sensation is called capsaicin (8-methylN-vanillyl-6-nonenamide). This bioactive substance binds to the primary afferent neurons’ transient receptor potential vanilloid 1 (TRPV1) cation channels, which when activated, cause a sensation of heat. Capsaicin has been utilized as a tool to study the regulation of pain since TRPV1 channels have been reported to be crucial for heat nociception.1 Despite reports that capsaicin binding to TRPV1 channels causes pain, it has been demonstrated that prolonged exposures to capsaicin can desensitize dorsal root ganglion (DRG) neurons, thus reducing afferent drive and reducing synaptic transmission in the dorsal horn.2 Several studies have established that voltage-gated calcium channels (VGCCs) are key modulators of nociceptive and nociplastic pain.3 VGCCs are transmembrane proteins composed of a principal pore-forming α subunit that mediates Ca2+ entry into the cell in response to membrane potential changes. Based on their biophysical characteristics, VGCCs are classified into low voltage activated (LVA) and high voltage activated (HVA) families. HVA channels are typically expressed with auxiliary subunits β and α2δ that regulate the trafficking and function of these channels. The N-type calcium channel, also known as CaV2.2, is a member of the HVA family that is expressed at high levels in sensory neurons where they are key mediators of neurotransmitter release and the transmission of sensory information from the periphery to central sites.4 Given that CaV2.2 channels are the main presynaptic VGCCs and have a critical role in regulating nociceptive transmission, it is reasonable to predict a regulation mediated by capsaicin and TRPV1. However, little is known about the underlying mechanisms of the functional interaction between these channels and their presynaptic function. This gap in knowledge was explored in a very ingenious way by Krishma Ramgoolam and Annette Dolphin in a new study reported in this issue of FUNCTION.5The authors build on their long-standing expertise of N-type calcium channels (CaV2.2) to investigate their functional presynaptic expression and explore their interaction with TRPV1 channels in primary nociceptors. Here, the Dolphin group used their previously described CaV2.2 HA knock-in mouse line, which expresses CaV2.2 with a hemagglutinin (HA) exofacial epitope tag to easily localize endogenous CaV2.2 channels.5 Using co-cultures of DRG neurons isolated from CaV2.2 HA knock-in mice with spinal cord neurons from wild-type (WT) mice and approaches, including immunofluorescence staining and calcium imaging, this study investigated the neuronal maturation, synapse formation, distribution, and presynaptic function of the tagged Ntype calcium channels. First, CaV2.2 localization during n","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9825713/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10740530","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ion Channel Lateral Diffusion Reveals the Maturation Process of the Neuronal Actin Cytoskeleton. 离子通道横向扩散揭示神经元肌动蛋白细胞骨架的成熟过程。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqad029
Luis A Pardo
{"title":"Ion Channel Lateral Diffusion Reveals the Maturation Process of the Neuronal Actin Cytoskeleton.","authors":"Luis A Pardo","doi":"10.1093/function/zqad029","DOIUrl":"https://doi.org/10.1093/function/zqad029","url":null,"abstract":"mall-conductance calcium-acti v ated potassium (SK) channels r e v olta ge-inde pendent K + channels that acti v ate in r esponse o a rise in cytoplasmic Ca 2 + 1 . In neurons, they are, therefore, b le to r educe Ca 2 + entr y in spines and dendrites, limiting proonged depolarization. SK channels can also be found in the oma and in axons, where they likely contribute to spike freuency adaptation. Gu and colleagues used single-particle tr ac kng 2 of SK channels in different areas of pyramidal hippocamal neurons in cultures of different ages. The diffusion coefcient of SK channels was determined along the maturation rocess of the neuronal culture using biotinylated apamin and tr e ptavidin-conjugated quantum dots to label the channels in ombination with total internal reflection microscopy. At the ame time, actin cytoskeleton integrity was manipulated pharacologically to investigate its impact on the diffusion velocity f SK channels. The approach allowed tracking the diffusion of he channel in different compartments, which served as a proxy o determine the stability of actin cytoskeletal structures. Since ta b le actin filaments limited the distribution of SK channels, it as possib le to infer how structured the actin cytoskeleton was long the maturation pr ocess. Importantl y, the submembrane ctin cytoskeleton is incr easingl y r egarded as a crucial factor for odulating the activity of ion channels and transporters at the lasma membrane (see Morache vska ya and Sudarikova 3 ). Neuronal function critically depends on the cytoar c hitecture f the neuron. The cytoskeleton plays a critical role in mainaining the proper neural computation that goes far beyond er e mechanical sta bility and shape maintenance. Specialized tructures crucial for neurotransmission, such as the node of anvier, the axon initial segment (AIS), or synaptic terminals, are","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10278981/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9713063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correction to: Muscle-Specific Cellular and Molecular Adaptations to Late-Life Voluntary Concurrent Exercise. 修正:对晚年自愿同步运动的肌肉特异性细胞和分子适应。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqad036
{"title":"Correction to: Muscle-Specific Cellular and Molecular Adaptations to Late-Life Voluntary Concurrent Exercise.","authors":"","doi":"10.1093/function/zqad036","DOIUrl":"https://doi.org/10.1093/function/zqad036","url":null,"abstract":"<p><p>[This corrects the article DOI: 10.1093/function/zqac027.].</p>","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/25/3d/zqad036.PMC10413927.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9991179","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Post-injury Inhibition of Endothelin-1 Dependent Renal Vasoregulation Mitigates Rhabdomyolysis-Induced Acute Kidney Injury. 损伤后内皮素-1依赖性肾血管调节抑制减轻横纹肌溶解引起的急性肾损伤。
Function (Oxford, England) Pub Date : 2023-01-01 DOI: 10.1093/function/zqad022
Jeremiah M Afolabi, Praghalathan Kanthakumar, Jada D Williams, Ravi Kumar, Hitesh Soni, Adebowale Adebiyi
{"title":"Post-injury Inhibition of Endothelin-1 Dependent Renal Vasoregulation Mitigates Rhabdomyolysis-Induced Acute Kidney Injury.","authors":"Jeremiah M Afolabi,&nbsp;Praghalathan Kanthakumar,&nbsp;Jada D Williams,&nbsp;Ravi Kumar,&nbsp;Hitesh Soni,&nbsp;Adebowale Adebiyi","doi":"10.1093/function/zqad022","DOIUrl":"https://doi.org/10.1093/function/zqad022","url":null,"abstract":"<p><p>In patients with rhabdomyolysis, the overwhelming release of myoglobin into the circulation is the primary cause of kidney injury. Myoglobin causes direct kidney injury as well as severe renal vasoconstriction. An increase in renal vascular resistance (RVR) results in renal blood flow (RBF) and glomerular filtration rate (GFR) reduction, tubular injury, and acute kidney injury (AKI). The mechanisms that underlie rhabdomyolysis-induced AKI are not fully understood but may involve the local production of vasoactive mediators in the kidney. Studies have shown that myoglobin stimulates endothelin-1 (ET-1) production in glomerular mesangial cells. Circulating ET-1 is also increased in rats subjected to glycerol-induced rhabdomyolysis. However, the upstream mechanisms of ET-1 production and downstream effectors of ET-1 actions in rhabdomyolysis-induced AKI remain unclear. Vasoactive ET-1 is generated by ET converting enzyme 1 (ECE-1)-induced proteolytic processing of inactive big ET to biologically active peptides. The downstream ion channel effectors of ET-1-induced vasoregulation include the transient receptor potential cation channel, subfamily C member 3 (TRPC3). This study demonstrates that glycerol-induced rhabdomyolysis in Wistar rats promotes ECE-1-dependent ET-1 production, RVR increase, GFR decrease, and AKI. Rhabdomyolysis-induced increases in RVR and AKI in the rats were attenuated by post-injury pharmacological inhibition of ECE-1, ET receptors, and TRPC3 channels. CRISPR/Cas9-mediated knockout of TRPC3 channels attenuated ET-1-induced renal vascular reactivity and rhabdomyolysis-induced AKI. These findings suggest that ECE-1-driven ET-1 production and downstream activation of TRPC3-dependent renal vasoconstriction contribute to rhabdomyolysis-induced AKI. Hence, post-injury inhibition of ET-1-mediated renal vasoregulation may provide therapeutic targets for rhabdomyolysis-induced AKI.</p>","PeriodicalId":73119,"journal":{"name":"Function (Oxford, England)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ftp.ncbi.nlm.nih.gov/pub/pmc/oa_pdf/06/c0/zqad022.PMC10278989.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10003895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信