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Chen K, Ou B, Huang Q, Deng D, Xiang Y, Hu F. LncRNA NEAT1 aggravates human microvascular endothelial cell injury by inhibiting the Apelin/Nrf2/HO-1 signalling pathway in type 2 diabetes mellitus with obstructive sleep apnoea. Epigenetics 2024; 19:2293409. [PMID: 38232183 PMCID: PMC10795783 DOI: 10.1080/15592294.2023.2293409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/05/2023] [Indexed: 01/19/2024] Open
Abstract
Long noncoding RNAs (lncRNAs) regulate the progression of type 2 diabetes mellitus complicated with obstructive sleep apnoea (T2DM-OSA). However, the role of the lncRNA nuclear paraspeckle assembly transcript 1 (NEAT1) in T2DM-OSA remains unknown. This study aimed to reveal the function of NEAT1 in T2DM-OSA and the underlying mechanism. KKAy mice were exposed to intermittent hypoxia (IH) or intermittent normoxia to generate a T2DM-OSA mouse model. HMEC-1 cells were treated with high glucose (HG) and IH to construct a T2DM-OSA cell model. RNA expression was detected by qRT-PCR. The protein expression of Apelin, NF-E2-related factor 2 (Nrf2), haem oxygenase-1 (HO-1), and up-frameshift suppressor 1 (UPF1) was assessed using western blot. Cell injury was evaluated using flow cytometry, enzyme-linked immunosorbent assay, and oxidative stress kit assays. RIP, RNA pull-down, and actinomycin D assays were performed to determine the associations between NEAT1, UPF1, and Apelin. NEAT1 expression was upregulated in the aortic vascular tissues of mice with T2DM exposed to IH and HMEC-1 cells stimulated with HG and IH, whereas Apelin expression was downregulated. The absence of NEAT1 protected HMEC-1 cells from HG- and IH-induced damage. Furthermore, NEAT1 destabilized Apelin mRNA by recruiting UPF1. Apelin overexpression decreased HG- and IH-induced injury to HMEC-1 cells by activating the Nrf2/HO-1 pathway. Moreover, NEAT1 knockdown reduced HG- and IH-induced injury to HMEC-1 cells through Apelin. NEAT1 silencing reduced HMEC-1 cell injury through the Apelin/Nrf2/HO-1 signalling pathway in T2DM-OSA.Abbreviations: LncRNAs, long non-coding RNAs; T2DM, type 2 diabetes mellitus; OSA, obstructive sleep apnoea; NEAT1, nuclear paraspeckle assembly transcript 1; IH, intermittent hypoxia; HMEC-1, human microvascular endothelial cells; HG, high glucose; Nrf2, NF-E2-related factor 2; UPF1, up-frameshift suppressor 1; HO-1, haem oxygenase-1; qRT-PCR, quantitative real-time polymerase chain reaction; ELISA, enzyme-linked immunosorbent assay; GAPDH, glyceraldehyde 3-phosphate dehydrogenase; TNF-α, tumour necrosis factor-α; CCK-8, Cell Counting Kit-8; IL-1β, interleukin-1β; ROS, reactive oxygen species; MDA, malondialdehyde; SOD, superoxide dismutase; RIP, RNA immunoprecipitation; SD, standard deviations; GSH, glutathione; AIS, acute ischaemic stroke; HMGB1, high mobility group box-1 protein; TLR4, toll-like receptor 4.
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Affiliation(s)
- Kai Chen
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Baiqing Ou
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Quan Huang
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Daqing Deng
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Yi Xiang
- Department of Cardiovascular Medicine Six Wards (Cardiovascular and Metabolic Diseases), Hunan Provincial People’s Hospital (The First Affiliated Hospital of Hunan Normal University), Changsha, Hunan, China
| | - Fang Hu
- Comprehensive internal medicine of Hunan Provincial People’s Hospital, Changsha, Hunan, China
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Hou D, Liu R, Hao S, Dou Y, Chen G, Liu L, Li T, Cao Y, Huang H, Duan C. Notoginsenoside R1 improves intestinal microvascular functioning in sepsis by targeting Drp1-mediated mitochondrial quality imbalance. Pharm Biol 2024; 62:250-260. [PMID: 38389274 PMCID: PMC10896147 DOI: 10.1080/13880209.2024.2318349] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
CONTEXT Sepsis can result in critical organ failure, and notoginsenoside R1 (NGR1) offers mitochondrial protection. OBJECTIVE To determine whether NGR1 improves organ function and prognosis after sepsis by protecting mitochondrial quality. MATERIALS AND METHODS A sepsis model was established in C57BL/6 mice using cecum ligation puncture (CLP) and an in vitro model with lipopolysaccharide (LPS, 10 µg/mL)-stimulated primary intestinal microvascular endothelial cells (IMVECs) and then determine NGR1's safe dosage. Groups for each model were: in vivo-a control group, a CLP-induced sepsis group, and a CLP + NGR1 treatment group (30 mg/kg/d for 3 d); in vitro-a control group, a LPS-induced sepsis group, and a LPS + NGR1 treatment group (4 μM for 30 min). NGR1's effects on survival, intestinal function, mitochondrial quality, and mitochondrial dynamic-related protein (Drp1) were evaluated. RESULTS Sepsis resulted in approximately 60% mortality within 7 days post-CLP, with significant reductions in intestinal microvascular perfusion and increases in vascular leakage. Severe mitochondrial quality imbalance was observed in IMVECs. NGR1 (IC50 is 854.1 μM at 30 min) targeted Drp1, inhibiting mitochondrial translocation, preventing mitochondrial fragmentation and restoring IMVEC morphology and function, thus protecting against intestinal barrier dysfunction, vascular permeability, microcirculatory flow, and improving sepsis prognosis. DISCUSSION AND CONCLUSIONS Drp1-mediated mitochondrial quality imbalance is a potential therapeutic target for sepsis. Small molecule natural drugs like NGR1 targeting Drp1 may offer new directions for organ protection following sepsis. Future research should focus on clinical trials to evaluate NGR1's efficacy across various patient populations, potentially leading to novel treatments for sepsis.
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Affiliation(s)
- Dongyao Hou
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Ruixue Liu
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Shuai Hao
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
- Research Institute of General Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, P.R. China
| | - Yong Dou
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Guizhen Chen
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Liangming Liu
- Department of Shock and Transfusion, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, P.R. China
| | - Tao Li
- Department of Shock and Transfusion, State Key Laboratory of Trauma, Burns and Combined Injury, Daping Hospital, Army Medical University, Chongqing, P.R. China
| | - Yunxing Cao
- Department of Intensive Care Unit, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - He Huang
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Chenyang Duan
- Department of Anesthesiology, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
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Hu S, Fei Y, Jin C, Yao J, Ding H, Wang J, Liu C. Ginsenoside Rd enhances blood-brain barrier integrity after cerebral ischemia/reperfusion by alleviating endothelial cells ferroptosis via activation of NRG1/ErbB4-mediated PI3K/Akt/mTOR signaling pathway. Neuropharmacology 2024; 251:109929. [PMID: 38521230 DOI: 10.1016/j.neuropharm.2024.109929] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 03/18/2024] [Accepted: 03/20/2024] [Indexed: 03/25/2024]
Abstract
The incidence of ischemic stroke is increasing year by year and showing a younger trend. Impaired blood-brain barrier (BBB) is one of the pathological manifestations caused by cerebral ischemia, leading to poor prognosis of patients. Accumulating evidence indicates that ferroptosis is involved in cerebral ischemia/reperfusion injury (CIRI). We have previously demonstrated that Ginsenoside Rd (G-Rd) protects against CIRI-induced neuronal injury. However, whether G-Rd can attenuate CIRI-induced disruption of the BBB remains unclear. In this study, we found that G-Rd could upregulate the levels of ZO-1, occludin, and claudin-5 in ipsilateral cerebral microvessels and bEnd.3 cells, reduce endothelial cells (ECs) loss and Evans blue (EB) leakage, and ultimately improve BBB integrity after CIRI. Interestingly, the expressions of ACSL4 and COX2 were upregulated, the expressions of GPX4 and xCT were downregulated, the levels of GSH was decreased, and the levels of MDA and Fe2+ were increased in ischemic tissues and bEnd.3 cells after CIRI, suggesting that ECs ferroptosis occurred after CIRI. However, G-Rd can alleviate CIRI-induced BBB disruption by inhibiting ECs ferroptosis. Mechanistically, G-Rd prevented tight junction loss and BBB leakage by upregulating NRG1, activating its tyrosine kinase ErbB4 receptor, and then activating downstream PI3K/Akt/mTOR signaling, thereby inhibiting CIRI-induced ferroptosis in ECs. Taken together, these data provides data support for G-Rd as a promising therapeutic drug for cerebral ischemia.
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Affiliation(s)
- Sheng Hu
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830017, PR China
| | - Yuxiang Fei
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, PR China; School of Basic Medicine & Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Chenchen Jin
- School of Basic Medicine & Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China
| | - Jun Yao
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830017, PR China; Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, Urumqi, 830017, PR China
| | - Haiyan Ding
- College of Pharmacy, Xinjiang Medical University, Urumqi, Xinjiang, 830017, PR China; Xinjiang Key Laboratory of Natural Medicines Active Components and Drug Release Technology, Urumqi, 830017, PR China.
| | - Jianing Wang
- Department of Pharmacy, The Affiliated Jiangning Hospital with Nanjing Medical University, Nanjing, Jiangsu, 211100, PR China.
| | - Chao Liu
- Department of Pharmacy, Nanjing First Hospital, Nanjing Medical University, Nanjing, 210006, PR China; School of Basic Medicine & Clinical Pharmacy, China Pharmaceutical University, Nanjing, 210009, PR China.
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Yau J, Chukwu P, Jedlicka SS, Ramamurthi A. Assessing trans-endothelial transport of nanoparticles for delivery to abdominal aortic aneurysms. J Biomed Mater Res A 2024; 112:881-894. [PMID: 38192169 DOI: 10.1002/jbm.a.37667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 12/19/2023] [Accepted: 12/27/2023] [Indexed: 01/10/2024]
Abstract
Abdominal aortic aneurysms (AAAs) are localized, rupture-prone expansions of the abdominal aorta wall. In this condition, structural extracellular matrix (ECM) proteins of the aorta wall, elastic fibers and collagen fibers, that impart elasticity and stiffness respectively, are slowly degraded by overexpressed matrix metalloproteinases (MMPs) following an injury stimulus. We are seeking to deliver therapeutics to the AAA wall using polymer nanoparticles (NPs) that are capable of stimulating on-site matrix regeneration and repair. This study aimed to determine how NP shape and size impacts endocytosis and transmigration past the endothelial cell (EC) layer from circulation into the medial layer of the AAA wall. First, rod-shaped NPs were shown to be created based mechanical stretching of PLGA NPs while embedded in a PVA film with longer rod-shaped NPs created based of the degree in which the PVA films are stretched. Live/dead assay reveals that our PLGA NPs are safe and do not cause cell death. Immunofluorescence staining reveal cytokine activation causes endothelial dysfunction in ECs by increasing expression of inflammatory marker Integrin αVβ3 and decreasing expression of adhesion protein vascular endothelial (VE)-cadherin. We showed this disruption enable greater EC uptake and translocation of NPs. Fluorescence studies demonstrate high endothelial transmigration and endocytosis with rod-shaped NPs in cytokine activated ECs compared to healthy control cells, arguing for the benefits of using higher aspect ratio (AR) NPs for accumulation at the aneurysm site. We also demonstrated that the mechanisms of NP transmigration across an activated EC layer depend on NP AR. These results show the potential of using shape as a modality for enhancing permeation of NPs into the aneurysm wall. These studies are also significance to understanding the mechanisms that are likely engaged by NPs for penetrating the endothelial lining of aneurysmal wall segments.
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Affiliation(s)
- Jimmy Yau
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Patience Chukwu
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Sabrina S Jedlicka
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
| | - Anand Ramamurthi
- Department of Bioengineering, Lehigh University, Bethlehem, Pennsylvania, USA
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Song SN, Dong WP, Dong XX, Guo F, Ren L, Li CX, Wang JM. Cerebral endothelial cells mediated enhancement of brain pericyte number and migration in oxygen-glucose deprivation involves the HIF-1α/PDGF-β signaling. Brain Res 2024; 1832:148849. [PMID: 38452844 DOI: 10.1016/j.brainres.2024.148849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 02/22/2024] [Accepted: 03/04/2024] [Indexed: 03/09/2024]
Abstract
The present study focused on whether hypoxia-inducible factor-1alpha (HIF-1α) and platelet-derived factor-beta (PDGF-β) are involved in the crosstalk between brain microvascular endothelial cells (BMECs) and brain vascular pericytes (BVPs) under ischaemic-hypoxic conditions. Mono-cultures or co-cultures of BVPs and BMECs were made for the construction of the blood-brain barrier (BBB) model in vitro and then exposed to control and oxygen-glucose deprivation (OGD) conditions. BBB injury was determined by assessing the ability, apoptosis, and migration of BVPs and the transendothelial electrical resistance and horseradish peroxidase permeation of BMECs. Relative mRNA and protein levels of HIF-1α and PDGF-β, as well as tight junction proteins ZO-1 and claudin-5 were analyzed by western blotting, reverse transcription quantitative PCR, and/or immunofluorescence staining. Dual-luciferase reporter assays assessed the relationship between PDGF-β and HIF-1α. Co-culturing with BMECs alleviated OGD-induced reduction in BVP viability, elevation in BVP apoptosis, and repression in BVP migration. Co-culturing with BVPs protected against OGD-induced impairment on BMEC permeability. OGD-induced HIF-1α upregulation enhanced PDGF-β expression in mono-cultured BMECs and co-cultured BMECs with BVPs. Knockdown of HIF-1α impaired the effect of BMECs on BVPs under OGD conditions, and PDGFR-β silencing in BVPs blocked the crosstalk between BMECs and BVPs under OGD conditions. The crosstalk between BMECs and BVPs was implicated in OGD-induced BBB injury through the HIF-1α/PDGF-β signaling.
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Affiliation(s)
- Shi-Na Song
- Department of Neurology, The First Hospital of Shanxi Medical University, Taiyuan, 030001, China; Department of Geriatrics, General Hospital of TISCO, Taiyuan, 030001, China
| | - Wen-Ping Dong
- Department of Geriatrics, General Hospital of TISCO, Taiyuan, 030001, China
| | - Xin-Xin Dong
- Department of Geriatrics, General Hospital of TISCO, Taiyuan, 030001, China.
| | - Fang Guo
- Department of Geriatrics, General Hospital of TISCO, Taiyuan, 030001, China
| | - Lin Ren
- Department of Geriatrics, General Hospital of TISCO, Taiyuan, 030001, China.
| | - Chang-Xin Li
- Department of Neurology, The First Hospital of Shanxi Medical University, Taiyuan, 030001, China.
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6
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Fang C, Huang F, Yao M, Wang Z, Ma J, Wu D, Guo T, Zhang F, Mo J. Advances in microRNA regulation of deep vein thrombosis through venous vascular endothelial cells (Review). Mol Med Rep 2024; 29:96. [PMID: 38606496 DOI: 10.3892/mmr.2024.13220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 03/07/2024] [Indexed: 04/13/2024] Open
Abstract
Deep vein thrombosis (DVT) is a prevalent clinical venous thrombotic condition that often manifests independently or in conjunction with other ailments. Thrombi have the propensity to dislodge into the circulatory system, giving rise to complications such as pulmonary embolism, thereby posing a significant risk to the patient. Virchow proposed that blood stagnation, alterations in the vessel wall and hypercoagulation are primary factors contributing to the development of venous thrombosis. Vascular endothelial cells (VECs) constitute the initial barrier to the vascular wall and are a focal point of ongoing research. These cells exert diverse stimulatory effects on the bloodstream and secrete various regulatory factors that uphold the dynamic equilibrium between the coagulation and anticoagulation processes. MicroRNAs (miRNAs) represent a class of non‑coding RNAs present in eukaryotes, characterized by significant genetic and evolutionary conservation and displaying high spatiotemporal expression specificity. Typically ranging from 20 to 25 bases in length, miRNAs can influence downstream gene transcription through RNA interference or by binding to specific mRNA sites. Consequently, advancements in understanding the molecular mechanisms of miRNAs, including their functionalities, involve modulation of vascular‑associated processes such as cell proliferation, differentiation, secretion of inflammatory factors, migration, apoptosis and vascular remodeling regeneration. miRNAs play a substantial role in DVT formation via venous VECs. In the present review, the distinct functions of various miRNAs in endothelial cells are outlined and recent progress in comprehending their role in the pathogenesis and clinical application of DVT is elucidated.
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Affiliation(s)
- Chucun Fang
- The First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Feng Huang
- College of Nursing, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Mengting Yao
- The First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Zilong Wang
- The First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Jiacheng Ma
- The First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Dongwen Wu
- The First Clinical Medical College, Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Tianting Guo
- Department of Orthopedics, Ganzhou Municipal Hospital, Ganzhou, Jiangxi 341000, P.R. China
| | - Fei Zhang
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
| | - Jianwen Mo
- Department of Orthopedics, The First Affiliated Hospital of Gannan Medical University, Ganzhou, Jiangxi 341000, P.R. China
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7
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Planas AM. Role of microglia in stroke. Glia 2024; 72:1016-1053. [PMID: 38173414 DOI: 10.1002/glia.24501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/05/2024]
Abstract
Microglia play key roles in the post-ischemic inflammatory response and damaged tissue removal reacting rapidly to the disturbances caused by ischemia and working to restore the lost homeostasis. However, the modified environment, encompassing ionic imbalances, disruption of crucial neuron-microglia interactions, spreading depolarization, and generation of danger signals from necrotic neurons, induce morphological and phenotypic shifts in microglia. This leads them to adopt a proinflammatory profile and heighten their phagocytic activity. From day three post-ischemia, macrophages infiltrate the necrotic core while microglia amass at the periphery. Further, inflammation prompts a metabolic shift favoring glycolysis, the pentose-phosphate shunt, and lipid synthesis. These shifts, combined with phagocytic lipid intake, drive lipid droplet biogenesis, fuel anabolism, and enable microglia proliferation. Proliferating microglia release trophic factors contributing to protection and repair. However, some microglia accumulate lipids persistently and transform into dysfunctional and potentially harmful foam cells. Studies also showed microglia that either display impaired apoptotic cell clearance, or eliminate synapses, viable neurons, or endothelial cells. Yet, it will be essential to elucidate the viability of engulfed cells, the features of the local environment, the extent of tissue damage, and the temporal sequence. Ischemia provides a rich variety of region- and injury-dependent stimuli for microglia, evolving with time and generating distinct microglia phenotypes including those exhibiting proinflammatory or dysfunctional traits and others showing pro-repair features. Accurate profiling of microglia phenotypes, alongside with a more precise understanding of the associated post-ischemic tissue conditions, is a necessary step to serve as the potential foundation for focused interventions in human stroke.
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Affiliation(s)
- Anna M Planas
- Cerebrovascular Research Laboratory, Department of Neuroscience and Experimental Therapeutics, Instituto de Investigaciones Biomédicas de Barcelona (IIBB), Consejo Superior de Investigaciones Científicas (CSIC), Barcelona, Spain
- Cerebrovascular Diseases, Area of Clinical and Experimental Neuroscience, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS)-Hospital Clínic, Barcelona, Spain
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Liu J, Wu F, Li Z, Zheng S, Huang Y, Chen H. Salvianic acid A sodium facilitates cardiac microvascular endothelial cell proliferation by enhancing the hypoxia-inducible factor-1 alpha/vascular endothelial growth factor signalling pathway post-myocardial infarction. Clin Exp Pharmacol Physiol 2024; 51:e13855. [PMID: 38636942 DOI: 10.1111/1440-1681.13855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2023] [Revised: 02/24/2024] [Accepted: 03/05/2024] [Indexed: 04/20/2024]
Abstract
Cardiac microvascular endothelial cells (CMECs) are important cells surrounding the cardiomyocytes in the heart that maintain microenvironment homeostasis. Salvianic acid A sodium (SAAS) has been reported to prevent myocardial infarction (MI) injury. However, the role of SAAS on CMEC proliferation remains unclear. CEMCs exposed to oxygen glucose deprivation (OGD) were used to explore the angiogenic abilities of SAAS. In vivo, C57BL/6 mice were divided into three groups: sham, MI and SAAS + MI groups. Compared to OGD group, SAAS led to a reduction in the apoptotic rate and an increase of the proliferation in vitro. Additionally, SAAS increased the protein levels of Bcl2, HIF-1α and vascular endothelial growth factor (VEGF) with the reduction of Bax. In terms of the specific mechanisms, SAAS might inhibit HIF-1α ubiquitination and enhance the HIF-1α/VEGF signalling pathway to increase CMEC proliferation. Furthermore, SAAS increased the density of vessels, inhibited myocardial fibrosis and improved cardiac dysfunction in vivo. The present study has revealed that SAAS could potentially be used as an active substance to facilitate CMEC proliferation post-MI.
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Affiliation(s)
- Jichun Liu
- Department of Cardiology, The First Affiliated Hospital, Yijishan Hospital of Wannan Medical College, Wuhu, China
| | - Fei Wu
- School of Clinical Medicine, Wannan Medical College, Wuhu, China
- Department of Oncology, Cancer Hospital Affiliated to Nanjing Medical University, Nanjing, China
| | - Zhenhan Li
- School of Clinical Medicine, Wannan Medical College, Wuhu, China
- The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Shengwei Zheng
- School of Clinical Medicine, Wannan Medical College, Wuhu, China
| | - Yanqiang Huang
- Research Center for the Prevention and Treatment of Drug Resistant Microbial Infecting, Youjiang Medical University for Nationalities, Baise, China
| | - Hao Chen
- Department of Pathology, Wannan Medical College, Wuhu, China
- Postdoctoral Research Station of Clinical Medicine, Jinan University, Guangzhou, China
- Graduate School, Affiliated Hospital of Youjiang Medical University for Nationalities, Baise, China
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Nguyen CT, Nakayama M, Ishigaki H, Kitagawa Y, Kakino A, Ohno M, Shingai M, Suzuki Y, Sawamura T, Kida H, Itoh Y. Increased expression of CD38 on endothelial cells in SARS-CoV-2 infection in cynomolgus macaques. Virology 2024; 594:110052. [PMID: 38507920 DOI: 10.1016/j.virol.2024.110052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/21/2024] [Accepted: 03/06/2024] [Indexed: 03/22/2024]
Abstract
SARS-CoV-2 infection causes activation of endothelial cells (ECs), leading to dysmorphology and dysfunction. To study the pathogenesis of endotheliopathy, the activation of ECs in lungs of cynomolgus macaques after SARS-CoV-2 infection and changes in nicotinamide adenine dinucleotide (NAD) metabolism in ECs were investigated, with a focus on the CD38 molecule, which degrades NAD in inflammatory responses after SARS-CoV-2 infection. Activation of ECs was seen from day 3 after SARS-CoV-2 infection in macaques, with increases of intravascular fibrin and NAD metabolism-associated enzymes including CD38. In vitro, upregulation of CD38 mRNA in human ECs was detected after interleukin 6 (IL-6) trans-signaling induction, which was increased in the infection. In the presence of IL-6 trans-signaling stimulation, however, CD38 mRNA silencing induced significant IL-6 mRNA upregulation in ECs and promoted EC apoptosis after stimulation. These results suggest that upregulation of CD38 in patients with COVID-19 has a protective role against IL-6 trans-signaling stimulation induced by SARS-CoV-2 infection.
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Affiliation(s)
- Cong Thanh Nguyen
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Misako Nakayama
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Hirohito Ishigaki
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Yoshinori Kitagawa
- Division of Microbiology and Infectious Diseases, Department of Pathology, Shiga University of Medical Science, Otsu, Japan
| | - Akemi Kakino
- Department of Molecular Pathophysiology, School of Medicine, Shinshu University, Matsumoto, Japan
| | - Marumi Ohno
- International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan; One Health Research Center, Hokkaido University, Sapporo, Japan
| | - Masashi Shingai
- International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Yasuhiko Suzuki
- International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan; Institute for Vaccine Research and Development, Hokkaido University, Sapporo, Japan
| | - Tatsuya Sawamura
- Department of Molecular Pathophysiology, School of Medicine, Shinshu University, Matsumoto, Japan
| | - Hiroshi Kida
- International Institute for Zoonosis Control, Hokkaido University, Sapporo, Japan
| | - Yasushi Itoh
- Division of Pathogenesis and Disease Regulation, Department of Pathology, Shiga University of Medical Science, Otsu, Japan; Central Research Laboratory, Shiga University of Medical Science, Otsu, Japan.
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Zhu R, Zhang L, Zhang H, Hu Z. BRD4 promotes LPS-induced endothelial cells senescence via activating and cooperating STING-IRF3 pathway. Cell Signal 2024; 118:111127. [PMID: 38447881 DOI: 10.1016/j.cellsig.2024.111127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 02/12/2024] [Accepted: 03/03/2024] [Indexed: 03/08/2024]
Abstract
Endothelial cells (ECs) senescence is closely associated with the initiation and development of multiple age-related cardiovascular diseases. It is necessary to explore the underlying molecular mechanisms of ECs senescence, which is not only the basis to decipher cellular senescence, but also a novel therapeutic target for the endothelial senescence-related diseases. BRD4, a key epigenetic regulator, is universally related to gene expression regulation and has been reported to accelerate cell senescence. Besides, emerging evidence has suggested that the stimulator of interferon genes protein (STING) can regulate inflammatory and senescence-related diseases. However, whether STING pathway activation is regulated by BRD4 in the context of ECs senescence remains largely unclear. Here, we observed that elevated BRD4 and activated STING-IRF3 signaling pathway during ECs senescence and further confirmed that BRD4 could abolish STING activation. We demonstrated that BRD4 could inhibit E3 ubiquitin ligase HRD1-mediated ubiquitination degradation of STING via inhibiting HRD1 transcription. In addition to the direct regulatory effect of BRD4 on STING activation, we have confirmed that BRD4 cooperates with IRF3 and P65 to promote SASP gene expression, thereby accelerating ECs senescence. Here, we proposed a novel mechanism underlying BRD4' key dual role in activating the STING pathway during ECs senescence.
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Affiliation(s)
- Ruigong Zhu
- School of Pharmacy, Nanjing University of Chinese Medicine, Nanjing City 210023, China; State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University, Guiyang City 550014, China.
| | - Lei Zhang
- The Fifth People's Hospital of Huai'an, Huaiyin Hospital of Huai'an, Huai'an City 223300, China.
| | - Hao Zhang
- The Affiliated Tumor Hospital of Nantong University, Nantong Tumor Hospital, Nantong City 226006, China.
| | - Zhifeng Hu
- The Fifth People's Hospital of Huai'an, Huaiyin Hospital of Huai'an, Huai'an City 223300, China.
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11
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Li Y, Yang W, Yang X, Ma A, Zhang X, Li H, Wu H. Quemeiteng granule relieves goiter by suppressing thyroid microvascular endothelial cell proliferation and angiogenesis via miR-217-5p-mediated targeting of FGF2-induced regulation of the ERK pathway. J Ethnopharmacol 2024; 326:117908. [PMID: 38367931 DOI: 10.1016/j.jep.2024.117908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 02/07/2024] [Accepted: 02/09/2024] [Indexed: 02/19/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Goiters are enlargements of the thyroid gland and are a global public issue. Quemeiteng granule (QMTG) is a traditional Chinese medicine (TCM) formula used to treat goiter in Yunnan Province. However, the effectiveness and underlying mechanism of these treatments have not been fully elucidated. AIM OF THE STUDY This study aimed to investigate the therapeutic effects of QMTG on goiter and the downstream regulatory mechanisms. MATERIALS AND METHODS In this study, we first evaluated the antigoiter efficacy of QMTG through biochemical indices [body weight, thyroid coefficient, triiodothyronine (T3), thyroxine (T4), free triiodothyronine (FT3), free thyroxine (FT4), and thyroid stimulating hormone (TSH)] and hematoxylin-eosin (HE) staining in a Propylthiouracil (PTU)-induced model. Based on microRNA sequencing (miRNA-seq) and bioinformatics analysis, key miRNA was screened out. A dual-luciferase reporter assay was performed to confirm the transcriptional regulation of the target gene by the miRNA. The viability of rat thyroid microvascular endothelial cells (RTMECs) and human thyroid microvascular endothelial cells (HTMECs) was assessed using the CCK-8 assays. The migration and angiogenesis of RTMECs and HTMECs were visualized through tube formation and wound scratch assays. Proteins involved in angiogenesis and the ERK pathway were assessed via Western blotting. RESULTS QMTG significantly increased body weight, decreased the thyroid coefficient, increased the levels of T3, T4, FT3 and FT4 and reduced TSH levels in rats with goiter. QMTG also promoted the morphological recovery of thyroid follicles. MiR-217-5p was identified as a key miRNA. Our studies revealed that miR-217-5p directly targets FGF2 and that QMTG promotes the recovery of thyroid hormone (TH) levels and morphological changes in the thyroid, suppresses thyroid microvascular endothelial cell vitality, tube formation and migration, and reduces the expression of VEGF, Ang-1 and VCAM-1 triggered by miR-217-5p, thereby inhibiting the Ras/MEK/ERK cascade through FGF2. CONCLUSIONS Our experiments demonstrated that the QMTG had therapeutic effects on goiter. These effects were attributed to the inhibition of ERK pathway-induced proliferation and angiogenesis through the targeting of FGF2 by miR-217-5p.
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Affiliation(s)
- Yang Li
- Department and Lab of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Wen Yang
- National Chengdu Center for Safety Evaluation of Drugs, West China Hospital, Sichuan University, Chengdu, China
| | - Xuewei Yang
- Department and Lab of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Aijia Ma
- Department and Lab of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xuepeng Zhang
- Department and Lab of Critical Care Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hongxia Li
- National Chengdu Center for Safety Evaluation of Drugs, West China Hospital, Sichuan University, Chengdu, China
| | - Hui Wu
- Clinical Pharmacy Center, First Affiliated Hospital of Kunming Medical University, Kunming, China.
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12
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Xian Y, Wang X, Yu Y, Chen X. Transcriptomics confirms IRF1 as a key regulator of pyroptosis in diabetic retinopathy. Biochem Biophys Res Commun 2024; 709:149760. [PMID: 38554602 DOI: 10.1016/j.bbrc.2024.149760] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2024] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 04/02/2024]
Abstract
BACKGROUND Diabetic retinopathy (DR) is a retinal microvascular complication caused by hyperglycemia, which can lead to visual impairment or blindness. Pyroptosis is a type of inflammation-related programmed cell death, activated by caspase-1, resulting in the maturation of IL-1β and IL-18 and the rupture of the cell membrane. RNA sequencing (RNA-seq) is a high-throughput sequencing technique that reveals the presence and quantity of RNA in the genome at a specific time point, i.e., the transcriptome. RNA-seq can analyze gene expression levels, splicing variants, mutations, fusions, editing and other post-transcriptional modifications, as well as gene expression differences between different samples or conditions. It has been widely used in biological and medical research, clinical diagnosis and new drug development. This study aimed to establish an in vitro model of diabetic retinopathy by culturing human retinal endothelial cells (HREC) with high glucose (30 mmol/L), and to detect their transcriptome expression by RNA-seq, screen for key genes related to pyroptosis, and validate the sequencing results by subsequent experiments. METHODS We used RNA-seq to detect the transcriptome expression differences between HREC cells cultured with high glucose and control group, and identified differentially expressed genes by GO/KEGG analysis. We constructed a PPI network and determined the key genes by Cytoscape software and CytoHubba plugin. We validated the expression of related factors by Western Blot, qPCR and ELISA. RESULTS We performed GO and KEGG analysis on the RNA-seq data and found differentially expressed genes. We used Cytoscape and CytoHubba plugin to screen out IRF1 as the key gene, and then detected the expression of IRF1 in HREC under high glucose and control group by Western Blot and qPCR. We found that the expression of Caspase-1, GSDMD and IL-1β proteins in HREC under high glucose increased, while the expression of these proteins decreased after the inhibition of IRF1 by siRNA. ELISA showed that the secretion of IL-1β in HREC under high glucose increased, while the inhibition of IRF1 reduced the secretion of IL-1β. These results indicate that IRF1 plays an important role in DR, and provides a new target and strategy for the prevention and treatment of this disease.
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Affiliation(s)
- Yang Xian
- Department of Ophthalmology, Shengjing Hospital of China Medical University, China
| | - Xingli Wang
- Department of Ophthalmology, Shengjing Hospital of China Medical University, China
| | - Yong Yu
- Department of Ophthalmology, Shengjing Hospital of China Medical University, China
| | - XiaoLong Chen
- Department of Ophthalmology, Shengjing Hospital of China Medical University, China.
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13
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Yokota Y, Takaki K, Baba K, Sasaki S, Hirano H, Osada H, Kataoka T. Amiodarone inhibits the Toll-like receptor 3-mediated nuclear factor κB signaling pathway by blocking organelle acidification. Biochem Biophys Res Commun 2024; 708:149801. [PMID: 38531219 DOI: 10.1016/j.bbrc.2024.149801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 03/18/2024] [Indexed: 03/28/2024]
Abstract
Toll-like receptor (TLR) agonists or pro-inflammatory cytokines converge to activate the nuclear factor κB (NF-κB) signaling pathway, which provokes inflammatory responses. In the present study, we identified amiodarone hydrochloride as a selective inhibitor of the TLR3-mediated NF-κB signaling pathway by screening the RIKEN NPDepo Chemical Library. In human umbilical vein endothelial cells (HUVEC), amiodarone selectively inhibited the expression of intercellular adhesion molecule-1 (ICAM-1) induced by polyinosinic-polycytidylic acid (Poly(I:C)), but not tumor necrosis factor-α, interleukin-1α, or lipopolysaccharide. In response to a Poly(I:C) stimulation, amiodarone at 20 μM reduced the up-regulation of mRNA expression encoding ICAM-1, vascular cell adhesion molecule-1, and E-selectin. The nuclear translocation of the NF-κB subunit RelA was inhibited by amiodarone at 15-20 μM in Poly(I:C)-stimulated HUVEC. Amiodarone diminished the fluorescent dots of LysoTracker® Red DND-99 scattered over the cytoplasm of HUVEC. Therefore, the present study revealed that amiodarone selectively inhibited the TLR3-mediated NF-κB signaling pathway by blocking the acidification of intracellular organelles.
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Affiliation(s)
- Yuka Yokota
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Keiko Takaki
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Kosuke Baba
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Saki Sasaki
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiroyuki Hirano
- Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan
| | - Hiroyuki Osada
- Chemical Resource Development Research Unit, RIKEN Center for Sustainable Resource Science, Wako, Saitama, 351-0198, Japan; Department of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, 422-8526, Japan
| | - Takao Kataoka
- Department of Applied Biology, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan; Biomedical Research Center, Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.
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14
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Wei L, Dankwa S, Vijayan K, Smith JD, Kaushansky A. Interrogating endothelial barrier regulation by temporally resolved kinase network generation. Life Sci Alliance 2024; 7:e202302522. [PMID: 38467420 PMCID: PMC10927359 DOI: 10.26508/lsa.202302522] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 02/21/2024] [Accepted: 02/22/2024] [Indexed: 03/13/2024] Open
Abstract
Kinases are key players in endothelial barrier regulation, yet their temporal function and regulatory phosphosignaling networks are incompletely understood. We developed a novel methodology, Temporally REsolved KInase Network Generation (TREKING), which combines a 28-kinase inhibitor screen with machine learning and network reconstruction to build time-resolved, functional phosphosignaling networks. We demonstrated the utility of TREKING for identifying pathways mediating barrier integrity after activation by thrombin with or without TNF preconditioning in brain endothelial cells. TREKING predicted over 100 kinases involved in barrier regulation and discerned complex condition-specific pathways. For instance, the MAPK-activated protein kinase 2 (MAPKAPK2/MK2) had early barrier-weakening activity in both inflammatory conditions but late barrier-strengthening activity exclusively with thrombin alone. Using temporal Western blotting, we confirmed that MAPKAPK2/MK2 was differentially phosphorylated under the two inflammatory conditions. We further showed with lentivirus-mediated knockdown of MAPK14/p38α and drug targeting the MAPK14/p38α-MAPKAPK2/MK2 complex that a MAP3K20/ZAK-MAPK14/p38α axis controlled the late activation of MAPKAPK2/MK2 in the thrombin-alone condition. Beyond the MAPKAPK2/MK2 switch, TREKING predicts extensive interconnected networks that control endothelial barrier dynamics.
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Affiliation(s)
- Ling Wei
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Selasi Dankwa
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Kamalakannan Vijayan
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
| | - Joseph D Smith
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Pediatrics, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
| | - Alexis Kaushansky
- Center for Global Infectious Disease Research, Seattle Children's Research Institute, Seattle, WA, USA
- Department of Pediatrics, University of Washington, Seattle, WA, USA
- Department of Global Health, University of Washington, Seattle, WA, USA
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15
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Lu Q, Tang H. Overexpression of HSP27 accelerates stress-induced gastric ulcer healing via the CXCL12/CXCR4 axis. Clin Exp Pharmacol Physiol 2024; 51:e13857. [PMID: 38566371 DOI: 10.1111/1440-1681.13857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 03/07/2024] [Accepted: 03/10/2024] [Indexed: 04/04/2024]
Abstract
Chronic stress often triggers gastrointestinal complications, including gastric injury and ulcers. Understanding the role of heat shock protein 27 (HSP27) in stress-induced gastric ulcers could unveil novel therapeutic targets. Here, we established a stress-induced gastric ulcer rat model using water immersion restraint stress and administered adenovirus-packaged HSP27 overexpression vector. Gastric ulcer severity was scored, and mucosal changes were assessed. Gastric epithelial and endothelial cells were treated with lipopolysaccharide and transfected with HSP27 overexpression vectors to evaluate cell viability, migration and angiogenesis. Expression levels of HSP27, C-X-C motif chemokine ligand 12 (CXCL12) and C-X-C motif chemokine receptor 4 (CXCR4) were measured in tissues and cells. HSP27 expression was initially low during stress-induced gastric ulceration but increased during ulcer healing. HSP27 overexpression accelerated ulcer healing in rats, promoting gastric epithelial cell proliferation and migration and gastric endothelial cell angiogenesis through the CXCL12/CXCR4 axis. Inhibitor IT1t reversed the effects of HSP27 overexpression on cell proliferation, migration and angiogenesis. In summary, HSP27 overexpression facilitated ulcer healing, which was partially mediated by the CXCL12/CXCR4 axis.
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Affiliation(s)
- Qiaoyan Lu
- Department of Digestive Endoscopy, Xi'an International Medical Center Hospital, China
| | - Hua Tang
- Department of Digestive Endoscopy, Xi'an International Medical Center Hospital, China
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16
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Gutor SS, Salinas RI, Nichols DS, Bazzano JMR, Han W, Gokey JJ, Vasiukov G, West JD, Newcomb DC, Dikalova AE, Richmond BW, Dikalov SI, Blackwell TS, Polosukhin VV. Repetitive sulfur dioxide exposure in mice models post-deployment respiratory syndrome. Am J Physiol Lung Cell Mol Physiol 2024; 326:L539-L550. [PMID: 38410870 DOI: 10.1152/ajplung.00239.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 02/15/2024] [Accepted: 02/15/2024] [Indexed: 02/28/2024] Open
Abstract
Soldiers deployed to Iraq and Afghanistan have a higher prevalence of respiratory symptoms than nondeployed military personnel and some have been shown to have a constellation of findings on lung biopsy termed post-deployment respiratory syndrome (PDRS). Since many of the subjects in this cohort reported exposure to sulfur dioxide (SO2), we developed a model of repetitive exposure to SO2 in mice that phenocopies many aspects of PDRS, including adaptive immune activation, airway wall remodeling, and pulmonary vascular (PV) disease. Although abnormalities in small airways were not sufficient to alter lung mechanics, PV remodeling resulted in the development of pulmonary hypertension and reduced exercise tolerance in SO2-exposed mice. SO2 exposure led to increased formation of isolevuglandins (isoLGs) adducts and superoxide dismutase 2 (SOD2) acetylation in endothelial cells, which were attenuated by treatment with the isoLG scavenger 2-hydroxybenzylamine acetate (2-HOBA). In addition, 2-HOBA treatment or Siruin-3 overexpression in a transgenic mouse model prevented vascular remodeling following SO2 exposure. In summary, our results indicate that repetitive SO2 exposure recapitulates many aspects of PDRS and that oxidative stress appears to mediate PV remodeling in this model. Together, these findings provide new insights regarding the critical mechanisms underlying PDRS.NEW & NOTEWORTHY We developed a mice model of "post-deployment respiratory syndrome" (PDRS), a condition in Veterans with unexplained exertional dyspnea. Our model successfully recapitulates many of the pathological and physiological features of the syndrome, revealing involvement of the ROS-isoLGs-Sirt3-SOD2 pathway in pulmonary vasculature pathology. Our study provides additional knowledge about effects and long-term consequences of sulfur dioxide exposure on the respiratory system, serving as a valuable tool for future PDRS research.
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Affiliation(s)
- Sergey S Gutor
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Rodrigo I Salinas
- Department of Chemistry, Emory University, Atlanta, Georgia, United States
| | - David S Nichols
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Julia M R Bazzano
- Department of Surgery, Emory University, Atlanta, Georgia, United States
| | - Wei Han
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Jason J Gokey
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Georgii Vasiukov
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee, United States
| | - James D West
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Dawn C Newcomb
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Anna E Dikalova
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Bradley W Richmond
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Department of Veterans Affairs Medical Center, Nashville, Tennessee, United States
| | - Sergey I Dikalov
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
| | - Timothy S Blackwell
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
- Department of Veterans Affairs Medical Center, Nashville, Tennessee, United States
| | - Vasiliy V Polosukhin
- Department of Medicine, Vanderbilt University Medical Center, Nashville, Tennessee, United States
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17
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Abbey CA, Duran CL, Chen Z, Chen Y, Roy S, Coffell A, Sveeggen TM, Chakraborty S, Wells GB, Chang J, Bayless KJ. Identification of New Markers of Angiogenic Sprouting Using Transcriptomics: New Role for RND3. Arterioscler Thromb Vasc Biol 2024; 44:e145-e167. [PMID: 38482696 DOI: 10.1161/atvbaha.123.320599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 02/28/2024] [Indexed: 04/26/2024]
Abstract
BACKGROUND New blood vessel formation requires endothelial cells to transition from a quiescent to an invasive phenotype. Transcriptional changes are vital for this switch, but a comprehensive genome-wide approach focused exclusively on endothelial cell sprout initiation has not been reported. METHODS Using a model of human endothelial cell sprout initiation, we developed a protocol to physically separate cells that initiate the process of new blood vessel formation (invading cells) from noninvading cells. We used this model to perform multiple transcriptomics analyses from independent donors to monitor endothelial gene expression changes. RESULTS Single-cell population analyses, single-cell cluster analyses, and bulk RNA sequencing revealed common transcriptomic changes associated with invading cells. We also found that collagenase digestion used to isolate single cells upregulated the Fos proto-oncogene transcription factor. Exclusion of Fos proto-oncogene expressing cells revealed a gene signature consistent with activation of signal transduction, morphogenesis, and immune responses. Many of the genes were previously shown to regulate angiogenesis and included multiple tip cell markers. Upregulation of SNAI1 (snail family transcriptional repressor 1), PTGS2 (prostaglandin synthase 2), and JUNB (JunB proto-oncogene) protein expression was confirmed in invading cells, and silencing JunB and SNAI1 significantly reduced invasion responses. Separate studies investigated rounding 3, also known as RhoE, which has not yet been implicated in angiogenesis. Silencing rounding 3 reduced endothelial invasion distance as well as filopodia length, fitting with a pathfinding role for rounding 3 via regulation of filopodial extensions. Analysis of in vivo retinal angiogenesis in Rnd3 heterozygous mice confirmed a decrease in filopodial length compared with wild-type littermates. CONCLUSIONS Validation of multiple genes, including rounding 3, revealed a functional role for this gene signature early in the angiogenic process. This study expands the list of genes associated with the acquisition of a tip cell phenotype during endothelial cell sprout initiation.
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Affiliation(s)
- Colette A Abbey
- Texas A&M Health, Department of Medical Physiology (C.A.A., S.R., S.C., K.J.B.), Texas A&M School of Medicine, Bryan
- Department of Molecular and Cellular Medicine (C.A.A., C.L.D., A.C., T.M.S., G.B.W., K.J.B.), Texas A&M School of Medicine, Bryan
| | - Camille L Duran
- Department of Molecular and Cellular Medicine (C.A.A., C.L.D., A.C., T.M.S., G.B.W., K.J.B.), Texas A&M School of Medicine, Bryan
- Now with Department of Pathology, Albert Einstein College of Medicine, Bronx, NY (C.L.D.)
| | - Zhishi Chen
- Center for Genomic and Precision Medicine, Institute of Biosciences and Technology, Houston, TX (Z.C., Y.C., J.C.)
| | - Yanping Chen
- Center for Genomic and Precision Medicine, Institute of Biosciences and Technology, Houston, TX (Z.C., Y.C., J.C.)
| | - Sukanya Roy
- Texas A&M Health, Department of Medical Physiology (C.A.A., S.R., S.C., K.J.B.), Texas A&M School of Medicine, Bryan
| | - Ashley Coffell
- Department of Molecular and Cellular Medicine (C.A.A., C.L.D., A.C., T.M.S., G.B.W., K.J.B.), Texas A&M School of Medicine, Bryan
| | - Timothy M Sveeggen
- Department of Molecular and Cellular Medicine (C.A.A., C.L.D., A.C., T.M.S., G.B.W., K.J.B.), Texas A&M School of Medicine, Bryan
- Now with Department of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha (T.M.S.)
| | - Sanjukta Chakraborty
- Texas A&M Health, Department of Medical Physiology (C.A.A., S.R., S.C., K.J.B.), Texas A&M School of Medicine, Bryan
| | - Gregg B Wells
- Department of Molecular and Cellular Medicine (C.A.A., C.L.D., A.C., T.M.S., G.B.W., K.J.B.), Texas A&M School of Medicine, Bryan
- Department of Cell Biology and Genetics (G.B.W.), Texas A&M School of Medicine, Bryan
| | - Jiang Chang
- Center for Genomic and Precision Medicine, Institute of Biosciences and Technology, Houston, TX (Z.C., Y.C., J.C.)
| | - Kayla J Bayless
- Texas A&M Health, Department of Medical Physiology (C.A.A., S.R., S.C., K.J.B.), Texas A&M School of Medicine, Bryan
- Department of Molecular and Cellular Medicine (C.A.A., C.L.D., A.C., T.M.S., G.B.W., K.J.B.), Texas A&M School of Medicine, Bryan
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18
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Islam MT, Cai J, Allen S, Moreno DG, Bloom SI, Bramwell RC, Mitton J, Horn AG, Zhu W, Donato AJ, Holland WL, Lesniewski LA. Endothelial-Specific Reduction in Arf6 Impairs Insulin-Stimulated Vasodilation and Skeletal Muscle Blood Flow Resulting in Systemic Insulin Resistance in Mice. Arterioscler Thromb Vasc Biol 2024; 44:1101-1113. [PMID: 38545783 DOI: 10.1161/atvbaha.123.319375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 02/27/2024] [Indexed: 04/09/2024]
Abstract
BACKGROUND Much of what we know about insulin resistance is based on studies from metabolically active tissues such as the liver, adipose tissue, and skeletal muscle. Emerging evidence suggests that the vascular endothelium plays a crucial role in systemic insulin resistance; however, the underlying mechanisms remain incompletely understood. Arf6 (ADP ribosylation factor 6) is a small GTPase that plays a critical role in endothelial cell function. Here, we tested the hypothesis that the deletion of endothelial Arf6 will result in systemic insulin resistance. METHODS We used mouse models of constitutive endothelial cell-specific Arf6 deletion (Arf6f/- Tie2Cre+) and tamoxifen-inducible Arf6 knockout (Arf6f/f Cdh5CreER+). Endothelium-dependent vasodilation was assessed using pressure myography. Metabolic function was assessed using a battery of metabolic assessments including glucose and insulin tolerance tests and hyperinsulinemic-euglycemic clamps. We used a fluorescence microsphere-based technique to measure tissue blood flow. Skeletal muscle capillary density was assessed using intravital microscopy. RESULTS Endothelial Arf6 deletion impaired insulin-stimulated vasodilation in white adipose tissue and skeletal muscle feed arteries. The impairment in vasodilation was primarily due to attenuated insulin-stimulated nitric oxide bioavailability but independent of altered acetylcholine-mediated or sodium nitroprusside-mediated vasodilation. Endothelial cell-specific deletion of Arf6 also resulted in systematic insulin resistance in normal chow-fed mice and glucose intolerance in high-fat diet-fed obese mice. The underlying mechanisms of glucose intolerance were reductions in insulin-stimulated blood flow and glucose uptake in the skeletal muscle and were independent of changes in capillary density or vascular permeability. CONCLUSIONS Results from this study support the conclusion that endothelial Arf6 signaling is essential for maintaining insulin sensitivity. Reduced expression of endothelial Arf6 impairs insulin-mediated vasodilation and results in systemic insulin resistance. These results have therapeutic implications for diseases that are associated with endothelial cell dysfunction and insulin resistance such as diabetes.
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Affiliation(s)
- Md Torikul Islam
- Department of Nutrition and Integrative Physiology (M.T.I., S.I.B., A.J.D., W.L.H., L.A.L.), The University of Utah, Salt Lake City
| | - Jinjin Cai
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
| | - Shanena Allen
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
| | - Denisse G Moreno
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
| | - Samuel I Bloom
- Department of Nutrition and Integrative Physiology (M.T.I., S.I.B., A.J.D., W.L.H., L.A.L.), The University of Utah, Salt Lake City
| | - R Colton Bramwell
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
| | - Jonathan Mitton
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
| | - Andrew G Horn
- Department of Kinesiology, Kansas State University, Manhattan (A.G.H.)
| | - Weiquan Zhu
- Division of Cardiovascular Medicine, Department of Internal Medicine (W.Z.), The University of Utah, Salt Lake City
- Department of Pathology (W.Z.), The University of Utah, Salt Lake City
- Program of Molecular Medicine (W.Z.), The University of Utah, Salt Lake City
| | - Anthony J Donato
- Department of Nutrition and Integrative Physiology (M.T.I., S.I.B., A.J.D., W.L.H., L.A.L.), The University of Utah, Salt Lake City
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
- Department of Biochemistry (A.J.D.), The University of Utah, Salt Lake City
- Nora Eccles Harrison Cardiovascular Research and Training Institute (A.J.D., L.A.L.), The University of Utah, Salt Lake City
- Veteran's Affairs Medical Center-Salt Lake City, Geriatric Research and Clinical Center, UT (A.J.D., L.A.L.)
| | - William L Holland
- Department of Nutrition and Integrative Physiology (M.T.I., S.I.B., A.J.D., W.L.H., L.A.L.), The University of Utah, Salt Lake City
| | - Lisa A Lesniewski
- Department of Nutrition and Integrative Physiology (M.T.I., S.I.B., A.J.D., W.L.H., L.A.L.), The University of Utah, Salt Lake City
- Division of Geriatrics, Department of Internal Medicine (J.C., S.A., D.G.M., R.C.B., J.M., A.J.D., L.A.L.), The University of Utah, Salt Lake City
- Nora Eccles Harrison Cardiovascular Research and Training Institute (A.J.D., L.A.L.), The University of Utah, Salt Lake City
- Veteran's Affairs Medical Center-Salt Lake City, Geriatric Research and Clinical Center, UT (A.J.D., L.A.L.)
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19
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Abuduyimiti T, Goto H, Kimura K, Oshima Y, Tanida R, Kamoshita K, Leerach N, Abuduwaili H, Oo HK, Li Q, Galicia-Medina CM, Takayama H, Ishii KA, Nakano Y, Takeshita Y, Iba T, Naito H, Honda M, Harada K, Yamamoto Y, Takamura T. Diabetes Accelerates Steatohepatitis in Mice: Liver Pathology and Single-Cell Gene Expression Signatures. Am J Pathol 2024; 194:693-707. [PMID: 38309428 DOI: 10.1016/j.ajpath.2024.01.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 11/27/2023] [Accepted: 01/10/2024] [Indexed: 02/05/2024]
Abstract
Glucose lowering independently reduces liver fibrosis in human nonalcoholic fatty liver disease. This study investigated the impact of diabetes on steatohepatitis and established a novel mouse model for diabetic steatohepatitis. Male C57BL/6J mice were fed a 60% high-fat diet (HFD) and injected with carbon tetrachloride (CCl4) and streptozotocin (STZ) to induce diabetes. The HFD+CCl4+STZ group showed more severe liver steatosis, hepatocyte ballooning, and regenerative nodules compared with other groups. Diabetes up-regulated inflammatory cytokine-associated genes and increased the M1/M2 macrophage ratios in the liver. Single-cell RNA sequencing analysis of nonparenchymal cells in the liver showed that diabetes reduced Kupffer cells and increased bone marrow-derived recruited inflammatory macrophages, such as Ly6Chi-RM. Diabetes globally reduced liver sinusoidal endothelial cells (LSECs). Furthermore, genes related to the receptor for advanced glycation end products (RAGE)/Toll-like receptor 4 (TLR4) were up-regulated in Ly6Chi-RM and LSECs in mice with diabetes, suggesting a possible role of RAGE/TLR4 signaling in the interaction between inflammatory macrophages and LSECs. This study established a novel diabetic steatohepatitis model using a combination of HFD, CCl4, and STZ. Diabetes exacerbated steatosis, hepatocyte ballooning, fibrosis, regenerative nodule formation, and the macrophage M1/M2 ratios triggered by HFD and CCl4. Single-cell RNA sequencing analysis indicated that diabetes activated inflammatory macrophages and impairs LSECs through the RAGE/TLR4 signaling pathway. These findings open avenues for discovering novel therapeutic targets for diabetic steatohepatitis.
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Affiliation(s)
- Tuerdiguli Abuduyimiti
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan; Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Hisanori Goto
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan; Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Kumi Kimura
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Yu Oshima
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Ryota Tanida
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Kyoko Kamoshita
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Nontaphat Leerach
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Halimulati Abuduwaili
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Hein Ko Oo
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Qifang Li
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Cynthia M Galicia-Medina
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Hiroaki Takayama
- Life Sciences Division, Engineering and Technology Department, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Kiyo-Aki Ishii
- Department of Bone and Joint Disease, National Center for Geriatrics and Gerontology, Obu, Japan
| | - Yujiro Nakano
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Yumie Takeshita
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Tomohiro Iba
- Department of Vascular Molecular Physiology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Hisamichi Naito
- Department of Vascular Molecular Physiology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Masao Honda
- Department of Gastroenterology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Kenichi Harada
- Department of Human Pathology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Yasuhiko Yamamoto
- Department of Biochemistry and Molecular Vascular Biology, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan
| | - Toshinari Takamura
- Department of Endocrinology and Metabolism, Kanazawa University Graduate School of Medical Sciences, Kanazawa, Japan.
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20
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Ma XX, Xie HY, Hou PP, Wang XJ, Zhou W, Wang ZH. Nuclear Factor Erythroid 2-Related Factor 2 is Essential for Low-Normobaric Oxygen Treatment-Mediated Blood-Brain Barrier Protection Following Ischemic Stroke. Mol Neurobiol 2024; 61:2938-2948. [PMID: 37950788 DOI: 10.1007/s12035-023-03767-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Accepted: 11/01/2023] [Indexed: 11/13/2023]
Abstract
Cerebral ischemia/reperfusion (I/R) injury increases blood-brain barrier (BBB) permeability, leading to hemorrhagic transformation and brain edema. Normobaric oxygen (NBO) is a routine clinical treatment strategy for this condition. However, its neuroprotective effects remain controversial. This study investigated the effect of different NBO concentrations on I/R injury and explores the involvement of the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway in the underlying mechanism. A mouse middle cerebral artery occlusion (MCAO) model, and an oxygen and glucose deprivation (OGD) model featuring mouse brain microvascular endothelial cells (ECs) called bEnd.3, were used to investigate the effect of NBO on I/R injury. A reactive oxygen species (ROS) inducer and Nrf2-knockdown by RNA were used to explore whether the Nrf2 pathway mediates the effect of NBO on cerebrovascular ECs. In the early stage of MCAO, 40% O2 NBO exposure significantly improved blood perfusion in the ischemic area and effectively relieved BBB permeability, cerebral edema, cerebral injury, and neurological function after MCAO. In the OGD model, 40% O2 NBO exposure significantly reduced apoptosis, inhibited ROS generation, reduced ER stress, upregulated the expression of tight junction proteins, and stabilized the permeability of ECs. Blocking the Nrf2 pathway nullified the protective effect of 40% O2 NBO on ECs after OGD. Finally, our study confirmed that low concentrations of NBO have a neuroprotective effect on I/R by activating the Nrf2 pathway in ECs.
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Affiliation(s)
- Xiao-Xiao Ma
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai-Yi Xie
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Pin-Pin Hou
- Central Laboratory, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Jing Wang
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei Zhou
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Zhen-Hong Wang
- Department of Anesthesiology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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21
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Gonzales CR, Moca EN, Chandra PK, Busija DW, Rutkai I. Three-dimensional object geometry of mitochondria-associated signal: 3-D analysis pipeline for two-photon image stacks of cerebrovascular endothelial mitochondria. Am J Physiol Heart Circ Physiol 2024; 326:H1291-H1303. [PMID: 38517228 DOI: 10.1152/ajpheart.00101.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 03/13/2024] [Accepted: 03/13/2024] [Indexed: 03/23/2024]
Abstract
Increasing evidence indicates the role of mitochondrial and vascular dysfunction in aging and aging-associated pathologies; however, the exact mechanisms and chronological processes remain enigmatic. High-energy demand organs, such as the brain, depend on the health of their mitochondria and vasculature for the maintenance of normal functions, therefore representing vulnerable targets for aging. This methodology article describes an analysis pipeline for three-dimensional (3-D) mitochondria-associated signal geometry of two-photon image stacks of brain vasculature. The analysis methods allow the quantification of mitochondria-associated signals obtained in real time in their physiological environment. In addition, signal geometry results will allow the extrapolation of fission and fusion events under normal conditions, during aging, or in the presence of different pathological conditions, therefore contributing to our understanding of the role mitochondria play in a variety of aging-associated diseases with vascular etiology.NEW & NOTEWORTHY Analysis pipeline for 3-D mitochondria-associated signal geometry of two-photon image stacks of brain vasculature.
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Affiliation(s)
- Christopher R Gonzales
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Eric N Moca
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
| | - Partha K Chandra
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Tulane Brain Institute, Tulane University, New Orleans, Louisiana, United States
| | - David W Busija
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Tulane Brain Institute, Tulane University, New Orleans, Louisiana, United States
| | - Ibolya Rutkai
- Department of Pharmacology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Tulane Brain Institute, Tulane University, New Orleans, Louisiana, United States
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22
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Park JE, Park JW, Sim MK, Kim SR, Kim KS. Inhibition of DAPK3 Suppresses Radiation-Induced Cellular Senescence by Activation of a PGC1α-Dependent Metabolism Pathway in Brain Endothelial Cells. J Gerontol A Biol Sci Med Sci 2024; 79:glae088. [PMID: 38563090 DOI: 10.1093/gerona/glae088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Indexed: 04/04/2024] Open
Abstract
In the brain, environmental changes, such as neuroinflammation, can induce senescence, characterized by the decreased proliferation of neurons and dendrites and synaptic and vascular damage, resulting in cognitive decline. Senescence promotes neuroinflammatory disorders by senescence-associated secretory phenotypes and reactive oxygen species. In human brain microvascular endothelial cells (HBMVECs), we demonstrate that chronological aging and irradiation increase death-associated protein kinase 3 (DAPK3) expression. To confirm the role of DAPK3 in HBMVEC senescence, we disrupted DAPK3 activity using small interfering RNA (siRNA) or a dominant-negative mutant (DAPK3-P216S), which reduced cellular senescence phenotypes, as assessed by changes in tube formation, senescence-associated beta-galactosidase activity, and cell proliferation. In endothelial cells, DAPK3 promotes cellular senescence by regulating the phosphorylation and inactivation of peroxisome proliferator-activated receptor gamma coactivator 1 alpha (PGC1α) via the protein kinase B pathway, resulting in the decreased expression of mitochondrial metabolism-associated genes, such as ATP5G1, BDNF, and COX5A. Our studies show that DAPK3 is involved in cellular senescence and PGC1α regulation, suggesting that DAPK3 regulation may be important for treating aging-related brain diseases or the response to radiation therapy.
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Affiliation(s)
- Ji-Eun Park
- Divisions of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
- School of Radiological & Medico-Oncological Science, University of Science & Technology, Daejeon, Republic of Korea
| | - Jeong Woo Park
- New Drug Development Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu, Republic of Korea
| | - Myong-Kyu Sim
- Divisions of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - So Ra Kim
- Divisions of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
| | - Kwang Seok Kim
- Divisions of Radiation Biomedical Research, Korea Institute of Radiological and Medical Sciences, Seoul, Republic of Korea
- School of Radiological & Medico-Oncological Science, University of Science & Technology, Daejeon, Republic of Korea
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23
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Zhang L, Sun Z, Yang Y, Mack A, Rodgers M, Aroor A, Jia G, Sowers JR, Hill MA. Endothelial cell serum and glucocorticoid regulated kinase 1 (SGK1) mediates vascular stiffening. Metabolism 2024; 154:155831. [PMID: 38431129 DOI: 10.1016/j.metabol.2024.155831] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 02/22/2024] [Accepted: 02/27/2024] [Indexed: 03/05/2024]
Abstract
BACKGROUND Excessive dietary salt intake increases vascular stiffness in humans, especially in salt-sensitive populations. While we recently suggested that the endothelial sodium channel (EnNaC) contributes to salt-sensitivity related endothelial cell (EC) and arterial stiffening, mechanistic understanding remains incomplete. This study therefore aimed to explore the role of EC-serum and glucocorticoid regulated kinase 1 (SGK1), as a reported regulator of sodium channels, in EC and arterial stiffening. METHODS AND RESULTS A mouse model of salt sensitivity-associated vascular stiffening was produced by subcutaneous implantation of slow-release deoxycorticosterone acetate (DOCA) pellets, with salt (1 % NaCl, 0.2 % KCl) administered via drinking water. Preliminary data showed that global SGK1 deletion caused significantly decreased blood pressure (BP), EnNaC activity and aortic endothelium stiffness as compared to control mice following DOCA-salt treatment. To probe EC signaling pathways, selective deletion of EC-SGK1 was performed by cross-breeding cadherin 5-Cre mice with sgk1flox/flox mice. DOCA-salt treated control mice had significantly increased BP, EC and aortic stiffness in vivo and ex vivo, which were attenuated by EC-SGK1 deficiency. To demonstrate relevance to humans, human aortic ECs were cultured in the absence or presence of aldosterone and high salt with or without the SGK1 inhibitor, EMD638683 (10uM or 25uM). Treatment with aldosterone and high salt increased intrinsic stiffness of ECs, which was prevented by SGK1 inhibition. Further, the SGK1 inhibitor prevented aldosterone and high salt induced actin polymerization, a key mechanism in cellular stiffening. CONCLUSION EC-SGK1 contributes to salt-sensitivity related EC and aortic stiffening by mechanisms appearing to involve regulation of actin polymerization.
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Affiliation(s)
- Liping Zhang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA
| | - Zhe Sun
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA
| | - Yan Yang
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA
| | - Austin Mack
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA
| | - Mackenna Rodgers
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA
| | - Annayya Aroor
- Department of Medicine, School of Medicine, University of Missouri, Columbia, MO 65211, USA
| | - Guanghong Jia
- Department of Medicine, School of Medicine, University of Missouri, Columbia, MO 65211, USA
| | - James R Sowers
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA
| | - Michael A Hill
- Dalton Cardiovascular Research Center, University of Missouri, Columbia, MO 65211, USA; Department of Medical Pharmacology and Physiology, University of Missouri, Columbia, MO 65211, USA.
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24
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Uy GL, DeAngelo DJ, Lozier JN, Fisher DM, Jonas BA, Magnani JL, Becker PS, Lazarus HM, Winkler IG. Targeting hematologic malignancies by inhibiting E-selectin: A sweet spot for AML therapy? Blood Rev 2024; 65:101184. [PMID: 38493006 DOI: 10.1016/j.blre.2024.101184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 02/06/2024] [Accepted: 02/26/2024] [Indexed: 03/18/2024]
Abstract
E-selectin, a cytoadhesive glycoprotein, is expressed on venular endothelial cells and mediates leukocyte localization to inflamed endothelium, the first step in inflammatory cell extravasation into tissue. Constitutive marrow endothelial E-selectin expression also supports bone marrow hematopoiesis via NF-κB-mediated signaling. Correspondingly, E-selectin interaction with E-selectin ligand (sialyl Lewisx) on acute myeloid leukemia (AML) cells leads to chemotherapy resistance in vivo. Uproleselan (GMI-1271) is a carbohydrate analog of sialyl Lewisx that blocks E-selectin binding. A Phase 2 trial of MEC chemotherapy combined with uproleselan for relapsed/refractory AML showed a median overall survival of 8.8 months and low (2%) rates of severe oral mucositis. Clinical trials seek to confirm activity in AML and mitigation of neutrophil-mediated adverse events (mucositis and diarrhea) after intensive chemotherapy. In this review we summarize E-selectin biology and the rationale for uproleselan in combination with other therapies for hematologic malignancies. We also describe uproleselan pharmacology and ongoing clinical trials.
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Affiliation(s)
- Geoffrey L Uy
- Division of Oncology, Washington University School of Medicine, St. Louis, MO, USA
| | - Daniel J DeAngelo
- Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA, USA
| | | | | | - Brian A Jonas
- Department of Internal Medicine, Division of Malignant Hematology/Cellular Therapy and Transplantation, University of California Davis, Davis, CA, USA
| | | | - Pamela S Becker
- Leukemia Division, Department of Hematology and Hematopoietic Cell Transplantation, Department of Hematologic Malignancies Translational Science, City of Hope National Medical Center, Duarte, CA, USA
| | - Hillard M Lazarus
- Department of Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Ingrid G Winkler
- Mater Research Institute - The University of Queensland, Translational Research Institute, Brisbane, Woolloongabba, QLD, Australia
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25
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Lin Y, Gahn J, Banerjee K, Dobreva G, Singhal M, Dubrac A, Ola R. Role of endothelial PDGFB in arterio-venous malformations pathogenesis. Angiogenesis 2024; 27:193-209. [PMID: 38070064 PMCID: PMC11021264 DOI: 10.1007/s10456-023-09900-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Accepted: 11/05/2023] [Indexed: 04/17/2024]
Abstract
Arterial-venous malformations (AVMs) are direct connections between arteries and veins without an intervening capillary bed. Either familial inherited or sporadically occurring, localized pericytes (PCs) drop is among the AVMs' hallmarks. Whether impaired PC coverage triggers AVMs or it is a secondary event is unclear. Here we evaluated the role of the master regulator of PC recruitment, Platelet derived growth factor B (PDGFB) in AVM pathogenesis. Using tamoxifen-inducible deletion of Pdgfb in endothelial cells (ECs), we show that disruption of EC Pdgfb-mediated PC recruitment and maintenance leads to capillary enlargement and organotypic AVM-like structures. These vascular lesions contain non-proliferative hyperplastic, hypertrophic and miss-oriented capillary ECs with an altered capillary EC fate identity. Mechanistically, we propose that PDGFB maintains capillary EC size and caliber to limit hemodynamic changes, thus restricting expression of Krüppel like factor 4 and activation of Bone morphogenic protein, Transforming growth factor β and NOTCH signaling in ECs. Furthermore, our study emphasizes that inducing or activating PDGFB signaling may be a viable therapeutic approach for treating vascular malformations.
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Affiliation(s)
- Yanzhu Lin
- Experimental Pharmacology Mannheim (EPM), European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Johannes Gahn
- Experimental Pharmacology Mannheim (EPM), European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Kuheli Banerjee
- Experimental Pharmacology Mannheim (EPM), European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Gergana Dobreva
- Department of Cardiovascular Genomics and Epigenomics, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Centre for Cardiovascular Research (DZHK), Heidelberg, Germany
| | - Mahak Singhal
- Laboratory of AngioRhythms, European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Alexandre Dubrac
- Centre de Recherche, CHU St. Justine, Montreal, QC, H3T 1C5, Canada
- Département de Pathologie et Biologie Cellulaire, Université de Montréal, Montreal, QC, H3T 1J4, Canada
| | - Roxana Ola
- Experimental Pharmacology Mannheim (EPM), European Center for Angioscience (ECAS), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany.
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26
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Sato S, Kawasaki T, Hatano R, Koyanagi Y, Takahashi Y, Ohnuma K, Morimoto C, Dudek SM, Tatsumi K, Suzuki T. Functional roles of CD26/DPP4 in lipopolysaccharide-induced lung injury. Am J Physiol Lung Cell Mol Physiol 2024; 326:L562-L573. [PMID: 38469626 DOI: 10.1152/ajplung.00392.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/01/2024] [Accepted: 02/27/2024] [Indexed: 03/13/2024] Open
Abstract
Acute respiratory distress syndrome (ARDS) is characterized by dysregulated inflammation and increased permeability of lung microvascular cells. CD26/dipeptidyl peptidase-4 (DPP4) is a type II membrane protein that is expressed in several cell types and mediates multiple pleiotropic effects. We previously reported that DPP4 inhibition by sitagliptin attenuates lipopolysaccharide (LPS)-induced lung injury in mice. The current study characterized the functional role of CD26/DPP4 expression in LPS-induced lung injury in mice, isolated alveolar macrophages, and cultured lung endothelial cells. In LPS-induced lung injury, inflammatory responses [bronchoalveolar lavage fluid (BALF) neutrophil numbers and several proinflammatory cytokine levels] were attenuated in Dpp4 knockout (Dpp4 KO) mice. However, multiple assays of alveolar capillary permeability were similar between the Dpp4 KO and wild-type mice. TNF-α and IL-6 production was suppressed in alveolar macrophages isolated from Dpp4 KO mice. In contrast, in cultured mouse lung microvascular endothelial cells (MLMVECs), reduction in CD26/DPP4 expression by siRNA resulted in greater ICAM-1 and IL-6 expression after LPS stimulation. Moreover, the LPS-induced vascular monolayer permeability in vitro was higher in MLMVECs treated with Dpp4 siRNA, suggesting that CD26/DPP4 plays a protective role in endothelial barrier function. In summary, this study demonstrated that genetic deficiency of Dpp4 attenuates inflammatory responses but not permeability in LPS-induced lung injury in mice, potentially through differential functional roles of CD26/DPP4 expression in resident cellular components of the lung. CD26/DPP4 may be a potential therapeutic target for ARDS and warrants further exploration to precisely identify the multiple functional effects of CD26/DPP4 in ARDS pathophysiology.NEW & NOTEWORTHY We aimed to clarify the functional roles of CD26/DPP4 in ARDS pathophysiology using Dpp4-deficient mice and siRNA reduction techniques in cultured lung cells. Our results suggest that CD26/DPP4 expression plays a proinflammatory role in alveolar macrophages while also playing a protective role in the endothelial barrier. Dpp4 genetic deficiency attenuates inflammatory responses but not permeability in LPS-induced lung injury in mice, potentially through differential roles of CD26/DPP4 expression in the resident cellular components of the lung.
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Affiliation(s)
- Shun Sato
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
- Synergy Institute for Futuristic Mucosal Vaccine Research and Development, Chiba University, Chiba, Japan
| | - Takeshi Kawasaki
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Ryo Hatano
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Yu Koyanagi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yukiko Takahashi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kei Ohnuma
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Chikao Morimoto
- Department of Therapy Development and Innovation for Immune Disorders and Cancers, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Steven M Dudek
- Division of Pulmonary, Critical Care, Sleep and Allergy, Department of Medicine, University of Illinois at Chicago, Chicago, Illinois, United States
| | - Koichiro Tatsumi
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Takuji Suzuki
- Department of Respirology, Graduate School of Medicine, Chiba University, Chiba, Japan
- Synergy Institute for Futuristic Mucosal Vaccine Research and Development, Chiba University, Chiba, Japan
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Liang J, Ul Hassan I, Yee Cheung M, Feng L, Lin YJ, Long Q, Wang C, Ding Y, Wang Z, Zhang Y, Li Y, Guo D, Guo X, Chi Bun Wong T, Kaleem Samma M, Rong Z, Qi X, Cai D, Ngai SM, Zhao H. Mechanistic study of transcription factor Sox18 during heart development. Gen Comp Endocrinol 2024; 350:114472. [PMID: 38373462 DOI: 10.1016/j.ygcen.2024.114472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/18/2024] [Accepted: 02/12/2024] [Indexed: 02/21/2024]
Abstract
Heart development is a delicate and complex process regulated by coordination of various signaling pathways. In this study, we investigated the role of sox18 in heart development by modulating Wnt/β-Catenin signaling pathways. Our spatiotemporal expression analysis revealed that sox18 is mainly expressed in the heart, branchial arch, pharyngeal arch, spinal cord, and intersegmental vessels at the tailbud stage of Xenopus tropicalis embryo. Overexpression of sox18 in the X. tropicalis embryos causes heart edema, while loss-of-function of sox18 can change the signal of developmental heart marker gata4 at different stages, suggesting that sox18 plays an essential role in the development of the heart. Knockdown of SOX18 in human umbilical vein endothelial cells suggests a link between Sox18 and β-CATENIN, a key regulator of the Wnt signaling pathway. Sox18 negatively regulates islet1 and tbx3, the downstream factors of Wnt/β-Catenin signaling, during the linear heart tube formation and the heart looping stage. Taken together, our findings highlight the crucial role of Sox18 in the development of the heart via inhibiting Wnt/β-Catenin signaling.
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Affiliation(s)
- Jianxin Liang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Imtiaz Ul Hassan
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Man Yee Cheung
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Lei Feng
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong, China; Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, China
| | - Yi-Jyun Lin
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Qi Long
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Chengdong Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yuyue Ding
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Ziqing Wang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yuan Zhang
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Yulong Li
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Donghao Guo
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Xiaofang Guo
- School of Life Sciences, Jinan University, Guangzhou, China
| | - Thomas Chi Bun Wong
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China
| | - Muhammad Kaleem Samma
- Department of Biology and Chemistry, City University of Hong Kong, Hong Kong SAR, China
| | - Zixin Rong
- Department of Gene Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), KTH Royal Institute of Technology, Stockholm 10691, Sweden
| | - Xufeng Qi
- School of Life Sciences, Jinan University, Guangzhou, China
| | - Dongqing Cai
- School of Life Sciences, Jinan University, Guangzhou, China
| | - Sai-Ming Ngai
- School of Life Sciences and State Key Laboratory of Agrobiotechnology, The Chinese University of Hong Kong, Hong Kong, China
| | - Hui Zhao
- School of Biomedical Sciences, The Chinese University of Hong Kong, Hong Kong, China.
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Xu F, Xin Q, Ren M, Shi P, Wang B. Inhibition of piezo1 prevents chronic cerebral hypoperfusion-induced cognitive impairment and blood brain barrier disruption. Neurochem Int 2024; 175:105702. [PMID: 38401846 DOI: 10.1016/j.neuint.2024.105702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 02/15/2024] [Accepted: 02/18/2024] [Indexed: 02/26/2024]
Abstract
Chronic cerebral hypoperfusion (CCH) plays a critical role in the onset and progression of vascular dementia (VD), which is now recognized as the second most common form of dementia after Alzheimer's disease (AD). The mechanosensitive piezo1 channel has been identified to play important roles in several neurological disorders. However, the roles and possible mechanisms of piezo1 in CCH-induced cognitive decline and blood brain barrier (BBB) disruption, as well as the underlying mechanisms remain elusive. In this study, the CCH model was established by bilateral common carotid artery occlusion in rats and by oxygen and glucose deprivation/reoxygenation (OGD/R) in bEnd.3 cells. The results demonstrated that the antagonist of piezo1 GsMTx4 ameliorated CCH-induced cognitive dysfunction and mitigated cerebral edema. Furthermore, this study indicated that GsMTx4 improved the permeability and integrity of BBB and protected cerebral microvasculature after CCH. In vitro, GsMTx4 improved cell viability, promoted the ability of cell motility and migration, and inhibited the degradation of BBB integrity-related proteins by inhibiting NLRP3 inflammasome activation. In addition, NLRP3 agonist abolished the beneficial effects of GsMTx4. Collectively, our results demonstrate that piezo1 might be involved in CCH-induced cognitive impairment and BBB damage, which may be at least partially mediated through regulation of NLRP3 inflammasome.
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Affiliation(s)
- Fei Xu
- Department of Vascular Surgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China; Department of Vascular Surgery, Jining NO.1 People's Hospital, Jining, 272000, China
| | - Qing Xin
- Department of Physiology, Jining Medical University, Jining, 272000, China
| | - Mengyao Ren
- Department of Physiology, Jining Medical University, Jining, 272000, China
| | - Peixin Shi
- Department of Physiology, Jining Medical University, Jining, 272000, China
| | - Bing Wang
- Department of Vascular Surgery, The Fifth Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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Berger M, Rosa da Mata S, Pizzolatti NM, Parizi LF, Konnai S, da Silva Vaz I, Seixas A, Tirloni L. An Ixodes persulcatus Inhibitor of Plasmin and Thrombin Hinders Keratinocyte Migration, Blood Coagulation, and Endothelial Permeability. J Invest Dermatol 2024; 144:1112-1123.e7. [PMID: 37996063 PMCID: PMC11034719 DOI: 10.1016/j.jid.2023.10.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/28/2023] [Accepted: 10/10/2023] [Indexed: 11/25/2023]
Abstract
The skin is the first host tissue that the tick mouthparts, tick saliva, and a tick-borne pathogen contact during feeding. Tick salivary glands have evolved a complex and sophisticated pharmacological arsenal, consisting of bioactive molecules, to assist blood feeding and pathogen transmission. In this work, persulcatin, a multifunctional molecule that targets keratinocyte function and hemostasis, was identified from Ixodes persulcatus female ticks. The recombinant persulcatin was expressed and purified and is a 25-kDa acidic protein with 2 Kunitz-type domains. Persulcatin is a classical tight-binding competitive inhibitor of proteases, targeting plasmin (Ki: 28 nM) and thrombin (Ki: 115 nM). It blocks plasmin generation on keratinocytes and inhibits their migration and matrix protein degradation; downregulates matrix metalloproteinase 2 and matrix metalloproteinase 9; and causes a delay in blood coagulation, endothelial cell activation, and thrombin-induced fibrinocoagulation. It interacts with exosite I of thrombin and reduces thrombin-induced endothelial cell permeability by inhibiting vascular endothelial-cadherin disruption. The multifaceted roles of persulcatin as an inhibitor and modulator within the plasminogen-plasmin system and thrombin not only unveil further insights into the intricate mechanisms governing wound healing but also provide a fresh perspective on the intricate interactions between ticks and their host organisms.
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Affiliation(s)
- Markus Berger
- Tick-Pathogen Transmission Unit, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, Montana, USA; Centro de Pesquisa Experimental, Hospital de Clínicas de Porto Alegre, Porto Alegre, Brazil
| | - Sheila Rosa da Mata
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil
| | | | - Luís Fernando Parizi
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil
| | - Satoru Konnai
- Laboratory of Infectious Diseases, Department of Disease Control, Graduate School of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Itabajara da Silva Vaz
- Centro de Biotecnologia, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Faculdade de Veterinária, Universidade Federal do Rio Grande do Sul, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia-Entomologia Molecular, Rio de Janeiro, Brazil
| | - Adriana Seixas
- Universidade Federal de Ciências da Saúde de Porto Alegre, Porto Alegre, Brazil; Instituto Nacional de Ciência e Tecnologia-Entomologia Molecular, Rio de Janeiro, Brazil.
| | - Lucas Tirloni
- Tick-Pathogen Transmission Unit, Laboratory of Bacteriology, National Institute of Allergy and Infectious Diseases, Hamilton, Montana, USA.
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Wang XL, Xian Y, Chen XL. YAP/TAZ Signaling Enhances Angiogenesis of Retinal Microvascular Endothelial Cells in a High-Glucose Environment. Curr Eye Res 2024; 49:524-532. [PMID: 38305219 DOI: 10.1080/02713683.2024.2309217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Accepted: 01/12/2024] [Indexed: 02/03/2024]
Abstract
PURPOSE Diabetic retinopathy (DR) is a major cause of irreversible blindness in the working-age population. Neovascularization is an important hallmark of advanced DR. There is evidence that Yes-associated protein (YAP)/transcriptional co-activator with a PDZ binding domain (TAZ) plays an important role in angiogenesis and that its activity is regulated by vascular endothelial growth factor (VEGF). Therefore, the aim of this study was to investigate the effect of YAP/TAZ-VEGF crosstalk on the angiogenic capacity of human retinal microvascular endothelial cells (hRECs) in a high-glucose environment. METHODS The expression of YAP and TAZ of hRECs under normal conditions, hypertonic conditions and high glucose were observed. YAP overexpression (OE-YAP), YAP silencing (sh-YAP), VEGF overexpression (OE-VEGF) and VEGF silencing (sh-VEGF) plasmids were constructed. Cell counting kit-8 assay was performed to detect cells proliferation ability, transwell assay to detect cells migration ability, and tube formation assay to detect tube formation ability. The protein expression of YAP, TAZ, VEGF, matrix metalloproteinase (MMP)-8, MMP-13, vessel endothelium (VE)-cadherin and alpha smooth muscle actin (α-SMA) was measured by western blot. RESULTS The proliferation of hRECs was significantly higher in the high glucose group compared with the normal group, as well as the protein expression of YAP and TAZ (p < 0.01). YAP and VEGF promoted the proliferation, migration and tube formation of hRECs in the high glucose environment (p < 0.01), and increased the expression of TAZ, VEGF, MMP-8, MMP-13 and α-SMA while reducing the expression of VE-cadherin (p < 0.01). Knockdown of YAP effectively reversed the above promoting effects of OE-VEGF (p < 0.01) and overexpression of YAP significantly reversed the inhibition effects of sh-VEGF on above cell function (p < 0.01). CONCLUSION In a high-glucose environment, YAP/TAZ can significantly promote the proliferation, migration and tube formation ability of hRECs, and the mechanism may be related to the regulation of VEGF expression.
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Affiliation(s)
- Xing-Li Wang
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Yang Xian
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, China
| | - Xiao-Long Chen
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, China
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Hou L, Du J, Dong Y, Wang M, Wang L, Zhao J. Liraglutide prevents cellular senescence in human retinal endothelial cells (HRECs) mediated by SIRT1: an implication in diabetes retinopathy. Hum Cell 2024; 37:666-674. [PMID: 38438663 PMCID: PMC11016519 DOI: 10.1007/s13577-024-01038-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Accepted: 01/24/2024] [Indexed: 03/06/2024]
Abstract
Diabetes mellitus (DM) is a chronic metabolic disorder affecting millions of people worldwide, characterized by dysregulated glucose homeostasis and hyperglycemia. Diabetic retinopathy (DR) is one of the serious multisystemic complications. Aging is an important risk factor for DR. Endothelial sirtuin 1 (SIRT1) plays an important role in regulating the pathophysiology of glucose metabolism, cellular senescence, and aging. Liraglutide, an analog of Glucagon-like peptide 1 (GLP-1), has been widely used in the treatment of DM. However, the effects of Liraglutide on DR are less reported. Here, we investigated whether treatment with Liraglutide has beneficial effects on high glucose (HG)-induced injury in human retinal microvascular endothelial cells (HRECs). First, we found that exposure to HG reduced the expression of glucagon-like peptide 1 receptor 1 (GLP-1R). Additionally, Liraglutide ameliorated HG-induced increase in the expression of vascular endothelial growth factor-A (VEGF-A) and interleukin 6 (IL-6). Importantly, Liraglutide ameliorated cellular senescence and increased telomerase activity in HG-challenged HRECs. Liraglutide also reduced the levels of p53 and p21. Mechanistically, Liraglutide restored the expression of SIRT1 against HG. In contrast, the knockdown of SIRT1 abolished the protective effects of Liraglutide in cellular senescence of HRECs. Our findings suggest that Liraglutide might possess a benefit on DR mediated by SIRT1.
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Affiliation(s)
- Lihua Hou
- Department of Ophthalmology, The First People's Hospital of Xianyang, No. 10, Biyuan Road, Qindu District, Xianyang City, 712000, Shanxi, China
| | - Jianying Du
- Department of Ophthalmology, The First People's Hospital of Xianyang, No. 10, Biyuan Road, Qindu District, Xianyang City, 712000, Shanxi, China
| | - Yongxiao Dong
- Department of Ophthalmology, The First People's Hospital of Xianyang, No. 10, Biyuan Road, Qindu District, Xianyang City, 712000, Shanxi, China
| | - Min Wang
- Department of Ophthalmology, The First People's Hospital of Xianyang, No. 10, Biyuan Road, Qindu District, Xianyang City, 712000, Shanxi, China
| | - Libo Wang
- Department of Ophthalmology, Sanyuan Eye Hospital, Xianyang City, 713899, Shanxi, China
| | - Jifei Zhao
- Department of Ophthalmology, The First People's Hospital of Xianyang, No. 10, Biyuan Road, Qindu District, Xianyang City, 712000, Shanxi, China.
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Zhu YZ, Liu JK, Li XE, Yu ZP, Yang LQ, Wan Q, Zhao Y, Saeed M, Wu AD, Tian XL. Genome-Wide Search Links Senescence-Associated Secretory Proteins With Susceptibility for Coronary Artery Disease in Mouse and Human. J Gerontol A Biol Sci Med Sci 2024; 79:glae070. [PMID: 38416803 DOI: 10.1093/gerona/glae070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2023] [Indexed: 03/01/2024] Open
Abstract
Advanced age is an independent risk factor for coronary artery disease (CAD), the leading global cause of mortality. Senescent vascular cells in the atherosclerotic plaques exhibit senescence-associated secretory phenotype (SASP). How SASP contributes to atherosclerosis and CAD, however, remains unclear. Here, we integrated RNA-array datasets of senescent human coronary arterial endothelial cells (HCAECs) and aortic smooth muscle cells (HASMCs) as well as genome-wide association data for CAD. We identified 26 genes from HCAECs and 6 genes from HASMCs related to SASP and CAD in both in-house and published datasets. Of which, Cystatin C (CST3), a CAD susceptibility gene, was found to be expressed in both HCAECs and HASMCs, thus, it was prioritized for further investigation. We demonstrated it was significantly elevated in senescent vascular cells, aged arteries, and early atherosclerosis. In vitro experiments showed that CST3 enhances the monocyte-endothelial cell adhesion. Additionally, ligand-receptor pairing analyses revealed two important pathways, COL4A1-ITGA1 and LPL-LRP1 pathways, linked to the critical processes in the development of atherosclerosis, including cell adhesion, inflammation response, extracellular matrix organization, and lipid metabolism. We further demonstrated a reduced monocyte-endothelial cell adhesion following the knockdown of COL4A1 or ITGA1 and a significantly increased expression of COL4A1, ITGA1, and LPL in arterial intima of aged mice and ApoE-/- mice. Our findings demonstrate that vascular cell-derived SASP proteins increase the CAD susceptibility and identify CST3 functionally contributing to atherosclerosis.
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Affiliation(s)
- Yuan-Zheng Zhu
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Jian-Kun Liu
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Xue-Er Li
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Zhen-Ping Yu
- Institute of Translational Medicine, School of Life Science, Nanchang University, Nanchang, Jiangxi, China
| | - Lu-Qin Yang
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Qin Wan
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Ya Zhao
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Muhammad Saeed
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - An-Dong Wu
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
| | - Xiao-Li Tian
- Aging and Vascular Diseases, Human Aging Research Institute (HARI), School of Life Science, and Jiangxi Key Laboratory of Human Aging, Nanchang University, Nanchang, Jiangxi, China
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Zack SR, Meyer A, Zanotti B, Volin MV, Deen S, Satoeya N, Sweiss N, Lewis MJ, Pitzalis C, Kitajewski JK, Shahrara S. Notch ligands are biomarkers of anti-TNF response in RA patients. Angiogenesis 2024; 27:273-283. [PMID: 37796367 PMCID: PMC10995106 DOI: 10.1007/s10456-023-09897-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 09/05/2023] [Indexed: 10/06/2023]
Abstract
Notch and its ligands play a critical role in rheumatoid arthritis (RA) pathogenesis. Hence, studies were conducted to delineate the functional significance of the Notch pathway in RA synovial tissue (ST) cells and the influence of RA therapies on their expression. Morphological studies reveal that JAG1, DLL4, and Notch1 are highly enriched in RA ST lining and sublining CD68+CD14+ MΦs. JAG1 and DLL4 transcription is jointly upregulated in RA MΦs reprogrammed by TLR4/5 ligation and TNF, whereas Syntenin-1 exposure expands JAG1, DLL4, and Notch1 expression levels in these cells. Single-cell RNA-seq data exhibit that JAG1 and Notch3 are overexpressed on all fibroblast-like synoviocyte (FLS) subpopulations, in parallel, JAG2, DLL1, and Notch1 expression levels are modest on RA FLS and are predominately potentiated by TLR4 ligation. Intriguingly, JAG1, DLL1/4, and Notch1/3 are presented on RA endothelial cells, and their expression is mutually reconfigured by TLR4/5 ligation in the endothelium. Synovial JAG1/JAG2/DLL1 or Notch1/3 transcriptomes were unchanged in patients who received disease-modifying anti-rheumatic drugs (DMARDs) or IL-6R Ab therapy regardless of disease activity score. Uniquely, RA MΦs and endothelial cells rewired by IL-6 displayed DLL4 transcriptional upregulation, and IL-6R antibody treatment disrupted RA ST DLL4 transcription in good responders compared to non-responders or moderate responders. Nevertheless, the JAG1/JAG2/DLL1/DLL4 transcriptome was diminished in anti-TNF good responders with myeloid pathotype and was unaltered in the fibroid pathotype except for DLL4. Taken together, our findings suggest that RA myeloid Notch ligands can serve as markers for anti-TNF responsiveness and trans-activate Notch receptors expressed on RA FLS and/or endothelial cells.
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Affiliation(s)
- Stephanie R Zack
- Jesse Brown VA Medical Center, Chicago, IL, USA
- Department of Medicine, Division of Rheumatology, The University of Illinois at Chicago, Chicago, IL, USA
| | - Anja Meyer
- Jesse Brown VA Medical Center, Chicago, IL, USA
- Department of Medicine, Division of Rheumatology, The University of Illinois at Chicago, Chicago, IL, USA
| | - Brian Zanotti
- Department of Microbiology and Immunology, Midwestern University, Downers Grove, IL, USA
| | - Michael V Volin
- Department of Microbiology and Immunology, Midwestern University, Downers Grove, IL, USA
| | - Sania Deen
- Department of Medicine, Division of Rheumatology, The University of Illinois at Chicago, Chicago, IL, USA
| | - Neha Satoeya
- Jesse Brown VA Medical Center, Chicago, IL, USA
- Department of Medicine, Division of Rheumatology, The University of Illinois at Chicago, Chicago, IL, USA
| | - Nadera Sweiss
- Department of Medicine, Division of Rheumatology, The University of Illinois at Chicago, Chicago, IL, USA
| | - Myles J Lewis
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Queen Mary University of London and Barts NIHR BRC & NHS Trust, London, UK
| | - Costantino Pitzalis
- Centre for Experimental Medicine and Rheumatology, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
- Centre for Experimental Medicine & Rheumatology, William Harvey Research Institute, Queen Mary University of London and Barts NIHR BRC & NHS Trust, London, UK
- Department of Biomedical Sciences, Humanitas University, and Humanitas Research Hospital, Milan, Italy
| | - Jan K Kitajewski
- Department of Physiology and Biophysics, University of Illinois College of Medicine, Chicago, IL, 60612, USA
- University of Illinois Cancer Center, University of Illinois Chicago, Chicago, IL, 60612, USA
| | - Shiva Shahrara
- Jesse Brown VA Medical Center, Chicago, IL, USA.
- Department of Medicine, Division of Rheumatology, The University of Illinois at Chicago, Chicago, IL, USA.
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Xu H, Yang H, Wang Z, Tang Q, Cao X, Chen C, Dong Y, Xu Z, Lv D, Rong Y, Chen M, Tang B, Deng W, Zhu J, Hu Z. Epidermal Stem Cell Derived Exosomes Alleviate Excessive Autophagy Induced Endothelial Cell Apoptosis by Delivering miR200b-3p to Diabetic Wounds. J Invest Dermatol 2024; 144:1134-1147.e2. [PMID: 37838331 DOI: 10.1016/j.jid.2023.08.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 08/03/2023] [Accepted: 08/30/2023] [Indexed: 10/16/2023]
Abstract
The dysfunction of endothelial cells caused by hyperglycemia is observed as a decrease in neovascularization in diabetic wound healing. Studies have found that epidermal stem cells (EpiSCs) can promote the angiogenesis of full-thickness wounds. To further explain the therapeutic effect of EpiSCs, EpiSC-derived exosomes (EpiSC-EXOs) are considered the main substance contributing to stem cell effectivity. In our study, EpiSCs and EpiSC-EXOs were supplied to the dorsal wounds of db/db mice. Results showed that EpiSCs could colonize in the wound area and both EpiSCs and EpiSC-EXOs could accelerate diabetic wound healing by promoting angiogenesis. In vitro, persistent high glucose led to the malfunction and apoptosis of endothelial cells. The apoptosis induced by high glucose is due to excessive autophagy and was alleviated by EpiSC-EXOs. RNA sequencing of EpiSC-EXOs showed that miR200b-3p was enriched in EpiSC-EXOs and alleviated the apoptosis of endothelial cells. Synapse defective rho GTPase homolog 1 was identified the target of miR200b-3p and affected the phosphorylation of ERK to regulate intracellular autophagy and apoptosis. Furthermore, animal experiments validated the angiogenic effect of miR200b-3p. Collectively, our results verified the effect of EpiSC-EXOs on apoptosis caused by hyperglycemia in endothelial cells through the miR200b-3p/synapse defective rho GTPase homolog 1 /RAS/ERK/autophagy pathway, providing a theoretical basis for EpiSC in treating diabetic wounds.
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Affiliation(s)
- Hailin Xu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Hao Yang
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Zhiyong Wang
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Qizhi Tang
- Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Affiliated Nanhai Hospital of Traditional Chinese Medicine of Jinan University, Foshan, China
| | - Xiaoling Cao
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Chufen Chen
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Yunxian Dong
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Zhongye Xu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Dongming Lv
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Yanchao Rong
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Miao Chen
- Guangdong Provincial Hospital of Integrated Traditional Chinese and Western Medicine, Affiliated Nanhai Hospital of Traditional Chinese Medicine of Jinan University, Foshan, China
| | - Bing Tang
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Wuguo Deng
- Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Guangzhou, China
| | - Jiayuan Zhu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China
| | - Zhicheng Hu
- First Affiliated Hospital of Sun Yat-sen University, Burn department, Guangzhou, China.
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Fang X, Zhang Y, Wu H, Wang H, Miao R, Wei J, Zhang Y, Tian J, Tong X. Mitochondrial regulation of diabetic endothelial dysfunction: Pathophysiological links. Int J Biochem Cell Biol 2024; 170:106569. [PMID: 38556159 DOI: 10.1016/j.biocel.2024.106569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 03/27/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Micro- and macrovascular complications frequently occur in patients with diabetes, with endothelial dysfunction playing a key role in the development and progression of the complications. For the early diagnosis and optimal treatment of vascular complications associated with diabetes, it is imperative to comprehend the cellular and molecular mechanisms governing the function of diabetic endothelial cells. Mitochondria function as crucial sensors of environmental and cellular stress regulating endothelial cell viability, structural integrity and function. Impaired mitochondrial quality control mechanisms and mitochondrial dysfunction are the main features of endothelial damage. Hence, targeted mitochondrial therapy is considered promising novel therapeutic options in vascular complications of diabetes. In this review, we focus on the mitochondrial functions in the vascular endothelial cells and the pathophysiological role of mitochondria in diabetic endothelial dysfunction, aiming to provide a reference for related drug development and clinical diagnosis and treatment.
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Affiliation(s)
- Xinyi Fang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Yanjiao Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Haoran Wu
- Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Han Wang
- School of Chinese Materia Medica, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Runyu Miao
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China; Graduate College, Beijing University of Chinese Medicine, Beijing 100029, China
| | - Jiahua Wei
- Graduate College, Changchun University of Chinese Medicine, Jilin 130117, China
| | - Yuxin Zhang
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Jiaxing Tian
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
| | - Xiaolin Tong
- Institute of Metabolic Diseases, Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China.
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Zagorski JW, Kaminski NE. Utilization of a novel human hepatocyte-endothelial cell coculture model to determine differential toxicities of pyrrolizidine alkaloid food contaminants. Food Chem Toxicol 2024; 187:114584. [PMID: 38490353 DOI: 10.1016/j.fct.2024.114584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 03/04/2024] [Accepted: 03/07/2024] [Indexed: 03/17/2024]
Abstract
Pyrrolizidine alkaloids (PA) are comprised of a family of hundreds of metabolites, produced by plants as a mechanism to protect against herbivory. Upon ingestion and metabolism, dehydropyrrolizidine alkaloids are formed, which are known to generate DNA adducts and subsequently double-strand DNA breaks. Within the liver, the most sensitive cell type to PA exposure is the sinusoidal endothelial cell, as evidenced by the generation of veno-occlusive disease in the human population. PAs are a common crop contaminant and have been regulated by some agencies, using the precautionary principle; each equally potent and genotoxic. Therefore, as a proof of principle we have established a human in vitro coculture model system, utilizing the metabolically active HepaRG hepatocyte and the SK-Hep-1 endothelial cell, to determine differential potencies of different PAs commonly found in crops and food products, notably cell death, targeting of endothelial cells, and genotoxicity comparing the micronucleus assay versus γH2AX assay. Our results demonstrate differential potencies of the PAs used, which encompass three esterification states (monoester, cyclic diester, and open-chain diester). The results suggest that a more nuanced approach to the regulation of PAs may be more appropriate in the regulatory decision-making process.
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Affiliation(s)
- Joseph W Zagorski
- Center for Research on Ingredient Safety, Michigan State University, East Lansing, MI, 48824, USA; Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA
| | - Norbert E Kaminski
- Center for Research on Ingredient Safety, Michigan State University, East Lansing, MI, 48824, USA; Department of Pharmacology and Toxicology, Michigan State University, East Lansing, MI, 48824, USA; Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, 48824, USA.
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Zech TJ, Wolf A, Hector M, Bischoff-Kont I, Krishnathas GM, Kuntschar S, Schmid T, Bracher F, Langmann T, Fürst R. 2-Desaza-annomontine (C81) impedes angiogenesis through reduced VEGFR2 expression derived from inhibition of CDC2-like kinases. Angiogenesis 2024; 27:245-272. [PMID: 38403816 PMCID: PMC11021337 DOI: 10.1007/s10456-024-09906-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 01/15/2024] [Indexed: 02/27/2024]
Abstract
Angiogenesis is a crucial process in the progression of various pathologies, like solid tumors, wet age-related macular degeneration, and chronic inflammation. Current anti-angiogenic treatments still have major drawbacks like limited efficacy in diseases that also rely on inflammation. Therefore, new anti-angiogenic approaches are sorely needed, and simultaneous inhibition of angiogenesis and inflammation is desirable. Here, we show that 2-desaza-annomontine (C81), a derivative of the plant alkaloid annomontine previously shown to inhibit endothelial inflammation, impedes angiogenesis by inhibiting CDC2-like kinases (CLKs) and WNT/β-catenin signaling. C81 reduced choroidal neovascularization in a laser-induced murine in vivo model, inhibited sprouting from vascular endothelial growth factor A (VEGF-A)-activated murine aortic rings ex vivo, and reduced angiogenesis-related activities of endothelial cells in multiple functional assays. This was largely phenocopied by CLK inhibitors and knockdowns, but not by inhibitors of the other known targets of C81. Mechanistically, CLK inhibition reduced VEGF receptor 2 (VEGFR2) mRNA and protein expression as well as downstream signaling. This was partly caused by a reduction of WNT/β-catenin pathway activity, as activating the pathway induced, while β-catenin knockdown impeded VEGFR2 expression. Surprisingly, alternative splicing of VEGFR2 was not detected. In summary, C81 and other CLK inhibitors could be promising compounds in the treatment of diseases that depend on angiogenesis and inflammation due to their impairment of both processes.
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Affiliation(s)
- T J Zech
- Faculty of Biochemistry, Chemistry and Pharmacy, Institute for Pharmaceutical Biology, Goethe University Frankfurt, Frankfurt, Germany.
| | - A Wolf
- Laboratory for Experimental Immunology of the Eye, Department of Ophthalmology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - M Hector
- Laboratory for Experimental Immunology of the Eye, Department of Ophthalmology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - I Bischoff-Kont
- Faculty of Biochemistry, Chemistry and Pharmacy, Institute for Pharmaceutical Biology, Goethe University Frankfurt, Frankfurt, Germany
| | - G M Krishnathas
- Faculty of Biochemistry, Chemistry and Pharmacy, Institute for Pharmaceutical Biology, Goethe University Frankfurt, Frankfurt, Germany
| | - S Kuntschar
- Faculty of Medicine, Institute of Biochemistry I, Goethe University Frankfurt, Frankfurt, Germany
| | - T Schmid
- Faculty of Medicine, Institute of Biochemistry I, Goethe University Frankfurt, Frankfurt, Germany
| | - F Bracher
- Pharmaceutical Chemistry, Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, Munich, Germany
| | - T Langmann
- Laboratory for Experimental Immunology of the Eye, Department of Ophthalmology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
- Centre for Molecular Medicine Cologne (CMMC), University of Cologne, Cologne, Germany
| | - R Fürst
- Faculty of Biochemistry, Chemistry and Pharmacy, Institute for Pharmaceutical Biology, Goethe University Frankfurt, Frankfurt, Germany
- Pharmaceutical Biology, Department of Pharmacy, Center for Drug Research, Ludwig-Maximilians-Universität München, Munich, Germany
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Al Tabosh T, Liu H, Koça D, Al Tarrass M, Tu L, Giraud S, Delagrange L, Beaudoin M, Rivière S, Grobost V, Rondeau-Lutz M, Dupuis O, Ricard N, Tillet E, Machillot P, Salomon A, Picart C, Battail C, Dupuis-Girod S, Guignabert C, Desroches-Castan A, Bailly S. Impact of heterozygous ALK1 mutations on the transcriptomic response to BMP9 and BMP10 in endothelial cells from hereditary hemorrhagic telangiectasia and pulmonary arterial hypertension donors. Angiogenesis 2024; 27:211-227. [PMID: 38294582 PMCID: PMC11021321 DOI: 10.1007/s10456-023-09902-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2023] [Accepted: 12/03/2023] [Indexed: 02/01/2024]
Abstract
Heterozygous activin receptor-like kinase 1 (ALK1) mutations are associated with two vascular diseases: hereditary hemorrhagic telangiectasia (HHT) and more rarely pulmonary arterial hypertension (PAH). Here, we aimed to understand the impact of ALK1 mutations on BMP9 and BMP10 transcriptomic responses in endothelial cells. Endothelial colony-forming cells (ECFCs) and microvascular endothelial cells (HMVECs) carrying loss of function ALK1 mutations were isolated from newborn HHT and adult PAH donors, respectively. RNA-sequencing was performed on each type of cells compared to controls following an 18 h stimulation with BMP9 or BMP10. In control ECFCs, BMP9 and BMP10 stimulations induced similar transcriptomic responses with around 800 differentially expressed genes (DEGs). ALK1-mutated ECFCs unexpectedly revealed highly similar transcriptomic profiles to controls, both at the baseline and upon stimulation, and normal activation of Smad1/5 that could not be explained by a compensation in cell-surface ALK1 level. Conversely, PAH HMVECs revealed strong transcriptional dysregulations compared to controls with > 1200 DEGs at the baseline. Consequently, because our study involved two variables, ALK1 genotype and BMP stimulation, we performed two-factor differential expression analysis and identified 44 BMP9-dysregulated genes in mutated HMVECs, but none in ECFCs. Yet, the impaired regulation of at least one hit, namely lunatic fringe (LFNG), was validated by RT-qPCR in three different ALK1-mutated endothelial models. In conclusion, ALK1 heterozygosity only modified the BMP9/BMP10 regulation of few genes, including LFNG involved in NOTCH signaling. Future studies will uncover whether dysregulations in such hits are enough to promote HHT/PAH pathogenesis, making them potential therapeutic targets, or if second hits are necessary.
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Affiliation(s)
- T Al Tabosh
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - H Liu
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - D Koça
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - M Al Tarrass
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - L Tu
- Faculté de Médecine, Pulmonary Hypertension: Pathophysiology and Novel Therapies, Université Paris-Saclay, 94276, Le Kremlin-Bicêtre, France
- INSERM UMR_S 999 «Pulmonary Hypertension: Pathophysiology and Novel Therapies», Hôpital Marie Lannelongue, 92350, Le Plessis-Robinson, France
| | - S Giraud
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
| | - L Delagrange
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
- National Reference Center for HHT, 69677, Bron, France
| | - M Beaudoin
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
- National Reference Center for HHT, 69677, Bron, France
| | - S Rivière
- Internal Medicine Department, CHU of Montpellier, St Eloi Hospital and Center of Clinical Investigation, INSERM, CIC 1411, 34295, Montpellier Cedex 7, France
| | - V Grobost
- Internal Medicine Department, CHU Estaing, 63100, Clermont-Ferrand, France
| | - M Rondeau-Lutz
- Internal Medicine Department, University Hospital of Strasbourg, 67091, Strasbourg Cedex, France
| | - O Dupuis
- Hôpital Lyon SUD, Hospices Civils de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
- Faculty of Medicine, Lyon University, 69921, Lyon, France
| | - N Ricard
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - E Tillet
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - P Machillot
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - A Salomon
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - C Picart
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - C Battail
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - S Dupuis-Girod
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
- Genetics Department, Femme-Mère-Enfants Hospital, Hospices Civils de Lyon, 69677, Bron, France
- National Reference Center for HHT, 69677, Bron, France
| | - C Guignabert
- Faculté de Médecine, Pulmonary Hypertension: Pathophysiology and Novel Therapies, Université Paris-Saclay, 94276, Le Kremlin-Bicêtre, France
- INSERM UMR_S 999 «Pulmonary Hypertension: Pathophysiology and Novel Therapies», Hôpital Marie Lannelongue, 92350, Le Plessis-Robinson, France
| | - A Desroches-Castan
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France
| | - S Bailly
- Biosanté unit U1292, Grenoble Alpes University, INSERM, CEA, 38000, Grenoble, France.
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Jin JS, Chou JM, Tsai WC, Chen YC, Chen Y, Ong JR, Tsai YL. Effectively α-Terpineol Suppresses Glioblastoma Aggressive Behavior and Downregulates KDELC2 Expression. Phytomedicine 2024; 127:155471. [PMID: 38452695 DOI: 10.1016/j.phymed.2024.155471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 02/11/2024] [Accepted: 02/20/2024] [Indexed: 03/09/2024]
Abstract
BACKGROUND Glioblastoma (GBM) is notorious for the aggressive behaviors and easily results in chemo-resistance. Studies have shown that the use of herbal medicines as treatments for GBM as limited by the blood-brain barrier (BBB) and glioma stem cells. PURPOSE The aim of this study was to investigate the relationship between GBM suppression and α-terpineol, the monoterpenoid alcohol derived from Eucalyptus glubulus and Pinus merkusii. STUDY DESIGN Using serial in-vitro and in-vivo studies to confirm the mechanism of α-terpineol on down-regulating GBM development. METHODS The 3-[4,5-dimethylthiazol-2-yl)]-2,5-diphenyltetrazolium bromide (MTT) assay was performed to evaluate IC50 of α-terpineol to inhibit GBM cell survival. In order to evaluate the impact of GBM aggressive behaviors by α-terpineol, the analysis of cell migration, invasion and colony formation were implemented. In addition, the ability of tumor spheres and WB of CD44 and OCT3/4 were evaluated under the impression of α-terpineol decreased GBM stemness. The regulation of neoangiogenesis by α-terpineol via the WB of angiogenic factors and human umbilical vein endothelial cells (HUVEC) tube assay. To survey the decided factors of α-terpineol downregulating GBM chemoresistance depended on the impact of O6-methylguanine-DNA methyltransferase (MGMT) expression and autophagy-related factors activation. Additionally, WB and quantitative real-time polymerase chain reaction (qRT/PCR) of KDEL (Lys-Asp-Glu-Leu) containing 2 (KDELC2), endoplasmic reticulum (ER) stress, phosphoinositide 3-kinase (PI3k), mammalian target of rapamycin (mTOR) and mitogen-activated protein kinase (MAPK) cascade signaling factors were examined to explore the mechanism of α-terpineol inhibiting GBM viability. Finally, the orthotopic GBM mouse model was applied to prove the efficacy and toxicity of α-terpineol on regulating GBM survival. RESULTS α-terpineol significantly suppressed GBM growth, migration, invasion, angiogenesis and temozolomide (TMZ) resistance. Furthermore, α-terpineol specifically targeted KDELC2 to downregulate Notch and PI3k/mTOR/MAPK signaling pathway. Finally, we also demonstrated that α-terpineol could penetrate the BBB to inhibit GBM proliferation, which resulted in reduced cytotoxicity to vital organs. CONCLUSION Compared to published literatures, we firstly proved α-terpineol possessed the capability to inhibit GBM through various mechanisms and potentially decreased the occurrence of chemoresistance, making it a promising alternative therapeutic option for GBM in the future.
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Affiliation(s)
- Jong-Shiaw Jin
- Department of Pathology, Tungs' Taichung MetroHarbor Hospital, Taichung, 40435, Taiwan
| | - Jung-Mao Chou
- Department of Pathology, Taipei City Hospital Renai Branch, Taipei 106, Taiwan
| | - Wen-Chiuan Tsai
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, 114, Taiwan
| | - Ying-Chuan Chen
- Department of Physiology and Biophysics, National Defense Medical Center, Taipei, 114, Taiwan
| | - Ying Chen
- Department of Biology and Anatomy, National Defense Medical Center, Taipei, 114, Taiwan
| | - Jiann-Ruey Ong
- Department of Emergency Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City, 235, Taiwan; Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei, 110, Taiwan; Department of Emergency Medicine, School of Medicine, Taipei Medical University, Taipei, 110, Taiwan
| | - Yu-Ling Tsai
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, 114, Taiwan.
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Yao J, Chen Y, Huang Y, Sun X, Shi X. The role of cardiac microenvironment in cardiovascular diseases: implications for therapy. Hum Cell 2024; 37:607-624. [PMID: 38498133 DOI: 10.1007/s13577-024-01052-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Accepted: 02/25/2024] [Indexed: 03/20/2024]
Abstract
Due to aging populations and changes in lifestyle, cardiovascular diseases including cardiomyopathy, hypertension, and atherosclerosis, are the leading causes of death worldwide. The heart is a complicated organ composed of multicellular types, including cardiomyocytes, fibroblasts, endothelial cells, vascular smooth muscle cells, and immune cells. Cellular specialization and complex interplay between different cell types are crucial for the cardiac tissue homeostasis and coordinated function of the heart. Mounting studies have demonstrated that dysfunctional cells and disordered cardiac microenvironment are closely associated with the pathogenesis of various cardiovascular diseases. In this paper, we discuss the composition and the homeostasis of cardiac tissues, and focus on the role of cardiac environment and underlying molecular mechanisms in various cardiovascular diseases. Besides, we elucidate the novel treatment for cardiovascular diseases, including stem cell therapy and targeted therapy. Clarification of these issues may provide novel insights into the prevention and potential targets for cardiovascular diseases.
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Affiliation(s)
- Jiayu Yao
- School of Life Science and Technology, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, China
| | - Yuejun Chen
- School of Life Science and Technology, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, China
| | - Yuqing Huang
- School of Life Science and Technology, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, China
| | - Xiaoou Sun
- Institute of Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou, China.
| | - Xingjuan Shi
- School of Life Science and Technology, Key Laboratory of Developmental Genes and Human Disease, Southeast University, Nanjing, China.
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Mughal A, Sackheim AM, Koide M, Bonson G, Ebner G, Hennig G, Lockette W, Nelson MT, Freeman K. Pathogenic soluble tau peptide disrupts endothelial calcium signaling and vasodilation in the brain microvasculature. J Cereb Blood Flow Metab 2024; 44:680-688. [PMID: 38420777 DOI: 10.1177/0271678x241235790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The accumulation of the microtubule-associated tau protein in and around blood vessels contributes to brain microvascular dysfunction through mechanisms that are incompletely understood. Delivery of nutrients to active neurons in the brain relies on capillary calcium (Ca2+) signals to direct blood flow. The initiation and amplification of endothelial cell Ca2+ signals require an intact microtubule cytoskeleton. Since tau accumulation in endothelial cells disrupts native microtubule stability, we reasoned that tau-induced microtubule destabilization would impair endothelial Ca2+ signaling. We tested the hypothesis that tau disrupts the regulation of local cerebral blood flow by reducing endothelial cell Ca2+ signals and endothelial-dependent vasodilation. We used a pathogenic soluble tau peptide (T-peptide) model of tau aggregation and mice with genetically encoded endothelial Ca2+ sensors to measure cerebrovascular endothelial responses to tau exposure. T-peptide significantly attenuated endothelial Ca2+ activity and cortical capillary blood flow in vivo. Further, T-peptide application constricted pressurized cerebral arteries and inhibited endothelium-dependent vasodilation. This study demonstrates that pathogenic tau alters cerebrovascular function through direct attenuation of endothelial Ca2+ signaling and endothelium-dependent vasodilation.
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Affiliation(s)
- Amreen Mughal
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Adrian M Sackheim
- Department of Emergency Medicine, University of Vermont, Burlington, VT, USA
| | - Masayo Koide
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Grace Bonson
- Department of Emergency Medicine, University of Vermont, Burlington, VT, USA
| | - Grace Ebner
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Grant Hennig
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
| | - Warren Lockette
- Division of Endocrinology, Wayne State University School of Medicine, Detroit, MI, USA
| | - Mark T Nelson
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
- Division of Cardiovascular Sciences, University of Manchester, Manchester, UK
| | - Kalev Freeman
- Department of Pharmacology, University of Vermont, Burlington, VT, USA
- Department of Emergency Medicine, University of Vermont, Burlington, VT, USA
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Miskin RP, DiPersio CM. Roles for epithelial integrin α3β1 in regulation of the microenvironment during normal and pathological tissue remodeling. Am J Physiol Cell Physiol 2024; 326:C1308-C1319. [PMID: 38497112 DOI: 10.1152/ajpcell.00128.2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Integrin receptors for the extracellular matrix activate intracellular signaling pathways that are critical for tissue development, homeostasis, and regeneration/repair, and their loss or dysregulation contributes to many developmental defects and tissue pathologies. This review will focus on tissue remodeling roles for integrin α3β1, a receptor for laminins found in the basement membranes (BMs) that underlie epithelial cell layers. As a paradigm, we will discuss literature that supports a role for α3β1 in promoting ability of epidermal keratinocytes to modify their tissue microenvironment during skin development, wound healing, or tumorigenesis. Preclinical and clinical studies have shown that this role depends largely on ability of α3β1 to govern the keratinocyte's repertoire of secreted proteins, or the "secretome," including 1) matrix proteins and proteases involved in matrix remodeling and 2) paracrine-acting growth factors/cytokines that stimulate other cells with important tissue remodeling functions (e.g., endothelial cells, fibroblasts, inflammatory cells). Moreover, α3β1 signaling controls gene expression that helps epithelial cells carry out these functions, including genes that encode secreted matrix proteins, proteases, growth factors, or cytokines. We will review what is known about α3β1-dependent gene regulation through both transcription and posttranscriptional mRNA stability. Regarding the latter, we will discuss examples of α3β1-dependent alternative splicing (AS) or alternative polyadenylation (APA) that prevents inclusion of cis-acting mRNA sequences that would otherwise target the transcript for degradation via nonsense-mediated decay or destabilizing AU-rich elements (AREs) in the 3'-untranslated region (3'-UTR). Finally, we will discuss prospects and anticipated challenges of exploiting α3β1 as a clinical target for the treatment of cancer or wound healing.
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Affiliation(s)
| | - C Michael DiPersio
- Department of Surgery, Albany Medical College, Albany, New York, United States
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York, United States
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Xu M, Liu H, Su MQ, Li L, Yu AL, Chen K, Huang YK, Zhao QL, Huang WY, Huang X. Absorbed Bioactive Compounds Replicate Guanxin II-Induced Endothelium-Associated in/ex vivo Vasodilation. Chin J Integr Med 2024; 30:387-397. [PMID: 38302647 DOI: 10.1007/s11655-024-3651-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2023] [Indexed: 02/03/2024]
Abstract
OBJECTIVE To develop an interference-free and rapid method to elucidate Guanxin II (GX II)'s representative vasodilator absorbed bioactive compounds (ABCs) among enormous phytochemicals. METHODS The contents of ferulic acid, tanshinol, and hydroxysafflor yellow A (FTA) in GX II/rat serum after the oral administration of GX II (30 g/kg) were detected using ultra-performance liquid chromatography-mass spectrometry. Totally 18 rats were randomly assigned to the control group (0.9% normal saline), GX II (30 g/kg) and FTA (5, 28 and 77 mg/kg) by random number table method. Diastolic coronary flow velocity-time integral (VTI), i.e., coronary flow or coronary flow-mediated dilation (CFMD), and endothelium-intact vascular tension of isolated aortic rings were measured. After 12 h of exposure to blank medium or 0.5 mmol/L H2O2, endothelial cells (ECs) were treated with post-dose GX II of supernatant from deproteinized serum (PGSDS, 300 µL PGSDS per 1 mL of culture medium) or FTA (237, 1539, and 1510 mg/mL) for 10 min as control, H2O2, PGSDS and FTA groups. Nitric oxide (NO), vascular endothelial growth factor (VEGF), endothelin-1 (ET-1), superoxide dismutase (SOD), malondialdehyde (MDA) and phosphorylated phosphoinositide 3 kinase (p-PI3K), phosphorylated protein kinase B (p-AKT), phosphorylated endothelial nitric oxide synthase (p-eNOS) were analyzed. PGSDS was developed as a GX II proxy of ex vivo herbal crude extracts. RESULTS PGSDS effectively eliminates false responses caused by crude GX II preparations. When doses equaled the contents in GX II/its post-dose serum, FTA accounted for 98.17% of GX II -added CFMD and 92.99% of PGSDS-reduced vascular tension. In ECs, FTA/PGSDS was found to have significant antioxidant (lower MDA and higher SOD, P<0.01) and endothelial function-protective (lower VEGF, ET-1, P<0.01) effects. The increases in aortic relaxation, endothelial NO levels and phosphorylated PI3K/Akt/eNOS protein induced by FTA/PGSDS were markedly abolished by NG-nitro-L-arginine methyl ester (L-NA, eNOS inhibitor) and wortmannin (PI3K/AKT inhibitor), respectively, indicating an endothelium-dependent vasodilation via the PI3K/AKT-eNOS pathway (P<0.01). CONCLUSION This study provides a strategy for rapidly and precisely elucidating GX II's representative in/ex vivo cardioprotective absorbed bioactive compounds (ABCs)-FTA, suggesting its potential in advancing precision ethnomedicine.
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Affiliation(s)
- Min Xu
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Hao Liu
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Meng-Qing Su
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Lan Li
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Ai-Ling Yu
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Ken Chen
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Yun-Ke Huang
- Department of Gynecology, Women's Hospital, Zhejiang University School of Medicine, Hangzhou, 310053, China
| | - Qiu-Long Zhao
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Wen-Ya Huang
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China
| | - Xi Huang
- Institute of Traditional Chinese Medicine Related Comorbid Depression, Nanjing University of Chinese Medicine, Nanjing, 210029, China.
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Liang J, Lei K, Liang R, Huang J, Tan B, Lin H, Wang M. Single-cell RNA sequencing reveals the MIF-ACKR3 receptor-ligand interaction between iCAFs and tumor cells in esophageal squamous cell carcinoma. Cell Signal 2024; 117:111093. [PMID: 38336189 DOI: 10.1016/j.cellsig.2024.111093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 01/30/2024] [Accepted: 02/06/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Esophageal squamous cell carcinoma (ESCC) is a malignant tumor of the gastrointestinal tract with a high morbidity and mortality rate. The heterogeneity of ESCC poses challenges in treatment and contributes to the poor prognosis of patients. Therefore, it is crucial to gain a better understanding of the tumor microenvironment (TME) heterogeneity and identify novel therapeutic targets. METHODS To solve this problem, we performed a single-cell RNA sequencing (scRNA-seq) analysis of ESCC samples obtained from the GEO database. RESULTS A total of 31,283 single cells were categorized into nine cell types, which included four non-immune cells (epithelial cells, endothelial cells, fibroblasts, schwann cells) and five immune cells (T cells, macrophages, mast cells, neutrophils, B cells). Our study revealed the presence of immunosuppressive tumor microenvironments in ESCC. We have also identified not only inflammatory cancer-associated fibroblast (iCAFs) and myofibroblastic cancer-associated fibroblasts (myCAFs) but also a subset of antigen presenting cancer-associated fibroblasts (apCAFs) which express high levels of HLA class II molecules in ESCC. Furthermore, our analysis of cell communication showed up-regulation of MIF-ACKR3 interaction between iCAFs and tumor cells in tumors compared to normal tissues. Finally, it was demonstrated that macrophage migration inhibitory factor (MIF) facilitates tumor cell migration and invasion through interacting with ACKR3 in vitro. CONCLUSIONS This study exposes the features of the tumor microenvironment of ESCC via scRNA-seq and examines the dynamics of various cellular subpopulations, thus facilitating the identification of future therapeutic targets for ESCC.
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Affiliation(s)
- Jialu Liang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Department of Thoracic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Kai Lei
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Department of Thoracic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Ruihao Liang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Department of Thoracic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Jing Huang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Department of Thoracic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Binhua Tan
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Department of Thoracic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huayue Lin
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Breast Tumor Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
| | - Minghui Wang
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China; Department of Thoracic Surgery, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou, China.
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Singh A, Varadarajan A, Pant P, Singh TP, Vikram NK, Sharma S, Sharma P. Identification of potential anti-mucor agents by targeting endothelial cell receptor glucose-regulated protein-78 using in silico approach. J Biomol Struct Dyn 2024; 42:4344-4355. [PMID: 37288794 DOI: 10.1080/07391102.2023.2220809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 05/28/2023] [Indexed: 06/09/2023]
Abstract
Mucormycosis is a fungal infection of the sinuses, brain and lungs that is the cause of approximately 50% mortality rate despite the available first-line therapy. Glucose-Regulated Protein 78 (GRP78) is already reported to be a novel host receptor that mediates invasion and damage of human endothelial cells by Rhizopus oryzae and Rhizopus delemar, the most common etiologic species of Mucorales. The expression of GRP78 is also regulated by the levels of iron and glucose in the blood. There are several antifungal drugs in the market but they pose a serious side effect to the vital organs of the body. Therefore, there is an immediate need to discover effective drug molecules having increased efficacy with no side effects. With the help of various computational tools, the current study was attempted to determine potential antimucor agents against GRP78. The receptor molecule GRP78 was screened against 8820 known drugs deposited in DrugBank library using high-throughput virtual screening method. Total top 10 compounds were selected based on the binding energies greater than the reference co-crystal molecule. Furthermore, molecular dynamic (MD) simulations using AMBER were performed to calculate the stability of the top-ranked compounds in the active site of GRP78. After extensive computational studies, we propose that two compounds (CID439153 and CID5289104) have inhibitory potency against mucormycosis and can serve as potential drugs that can form the basis of treating mucormycosis disease.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Anamika Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Ashwin Varadarajan
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Pradeep Pant
- Department of Chemistry, Indian Institute of Technology, New Delhi, India
| | - Tej P Singh
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Naval K Vikram
- Department of Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Sujata Sharma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
| | - Pradeep Sharma
- Department of Biophysics, All India Institute of Medical Sciences, New Delhi, India
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Abudureyimu S, He C, Xie W, Chen Z, Airikenjiang H, Abulaiti D, Cao Y, Qiu H, Gao Y. FOXO3a functions as a transcriptional and co-transcriptional splicing regulator in vascular endothelial cell lines. Gene 2024; 904:148221. [PMID: 38286271 DOI: 10.1016/j.gene.2024.148221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/22/2024] [Accepted: 01/26/2024] [Indexed: 01/31/2024]
Abstract
Recent studies have indicated a connection between Forkhead box O3a protein and coronary artery disease, yet the exact role of FOXO3a in the regulation of metabolic processes and apoptosis in vascular endothelial cells is still unknown. Therefore, we investigated the role of FOXO3a on target genes in a human vascular endothelial cell line. Through the utilization of high-throughput sequencing technology, we analyzed gene expression profiles and alternative splicing patterns in human vascular endothelial cells with FOXO3a over expression. This study identified 419 DEGs between FOXO3a-OE HUVEC model and control cells. KEGG analysis indicated that the upregulated genes were mainly enriched in inflammation-related signaling pathways, and the downregulated genes were enriched in lipid metabolism-related pathways.
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Affiliation(s)
- Shajidan Abudureyimu
- Department of Comprehensive Internal Medicine, The First Affiliated Hospital of Xinjiang Medical University, 830011 Urumqi, Xinjiang, China
| | - Chunhui He
- China Heart Failure Center, State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences & Peking Union Medical College, 100010 Beijing, China
| | - Wei Xie
- Department of Cardiology, Xinjiang Production and Construction Corps Hospital, 830011 Urumqi, Xinjiang, China
| | - Zhuo Chen
- The Second Clinical Medical College of Xinjiang Medical University, 830011 Urumqi, Xinjiang, China
| | - Halisha Airikenjiang
- Department of Comprehensive Internal Medicine, The First Affiliated Hospital of Xinjiang Medical University, 830011 Urumqi, Xinjiang, China
| | - Dilihumaer Abulaiti
- Department of Comprehensive Internal Medicine, The First Affiliated Hospital of Xinjiang Medical University, 830011 Urumqi, Xinjiang, China
| | - Yan Cao
- Department of Hepatobiliary and Pancreatic Surgery, Affiliated Cancer Hospital Xinjiang Medical University, 830000 Urumqi, Xinjiang, China
| | - Haitang Qiu
- Department of Comprehensive Internal Medicine, The First Affiliated Hospital of Xinjiang Medical University, 830011 Urumqi, Xinjiang, China
| | - Ying Gao
- Department of Comprehensive Internal Medicine, The First Affiliated Hospital of Xinjiang Medical University, 830011 Urumqi, Xinjiang, China.
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Oliveira VQ, Santos LC, Teixeira SC, Correia TML, Andrade LOSB, Gimenes SNC, Colombini M, Marques LM, Jiménez-Charris E, Freitas-de-Sousa LA, Silva MJB, Magalhães Gusmão ACMD, Ferro EAV, Clissa PB, Melo Rodrigues VD, Lopes DS. Antiangiogenic properties of BthMP, a P-I metalloproteinase from Bothrops moojeni snake venom by VEGF pathway in endothelial cells. Biochem Biophys Res Commun 2024; 706:149748. [PMID: 38460450 DOI: 10.1016/j.bbrc.2024.149748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 02/15/2024] [Accepted: 03/04/2024] [Indexed: 03/11/2024]
Abstract
Angiogenesis is a process that is controlled by a delicate combination of proangiogenic and antiangiogenic molecules and can be disrupted in various illnesses, including cancer. Non-cancerous diseases can also have an abnormal or insufficient vascular growth, inflammation and hypoxia, which exacerbate angiogenesis. These conditions include atherosclerosis, psoriasis, endometriosis, asthma, obesity and AIDS. Based on that, the present work assessed the in vitro and ex vivo antiangiogenic properties stemming from BthMP, a P-I metalloproteinase from Bothrops moojeni snake venom, via the VEGF pathway. BthMP at a concentration of 5 and 40 μg/mL showed no toxicity to endothelial cells (HUVEC) in the MTT assay and was not able to induce necrosis and colony proliferation. Interestingly, BthMP inhibited adhesion, migration and invasion of HUVECs in Matrigel and arrested in vitro angiogenesis by reducing the average number of nodules in toxin-treated cells by 9.6 and 17.32 at 5 and 40 μg/mL, respectively, and the number of tubules by 15.9 at 5 μg/mL and 21.6 at 40 μg/mL in a VEGF-dependent way, an essential proangiogenic property. Furthermore, BthMP inhibited the occurrence of the angiogenic process in an ex vivo aortic ring test by decreasing new vessel formation by 52% at 5 μg/mL and by 66% at 40 μg/mL and by increasing the expression of an antiangiogenic gene, SFLT-1, and decreasing the expression of the proangiogenic genes VEGFA and ANGPT-1. Finally, this toxin reduces the production of nitric oxide, a marker that promotes angiogenesis and VEGF modulation, and decreases the protein expression of VEGFA in the supernatant of the HUVEC culture by about 30 %. These results suggest that BthMP has a promising antiangiogenic property and proves to be a biotechnological mechanism for understanding the antiangiogenic responses induced by snake venom metalloproteinases, which could be applied to a variety of diseases that exhibit an imbalance of angiogenesis mechanisms.
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Affiliation(s)
- Vinícius Queiroz Oliveira
- Institute Multidisciplinary in Health, Federal University of Bahia (UFBA), Vitória da Conquista, BA, Brazil
| | - Luísa Carregosa Santos
- Institute Multidisciplinary in Health, Federal University of Bahia (UFBA), Vitória da Conquista, BA, Brazil
| | - Samuel Cota Teixeira
- Department of Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil.
| | | | | | | | - Mônica Colombini
- Laboratory of Immunopathology, Institute of Butantan, São Paulo, SP, Brazil
| | - Lucas Miranda Marques
- Institute Multidisciplinary in Health, Federal University of Bahia (UFBA), Vitória da Conquista, BA, Brazil
| | | | | | - Marcelo José Barbosa Silva
- Department of Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil
| | | | - Eloisa Amália Vieira Ferro
- Department of Immunology, Institute of Biomedical Sciences, Federal University of Uberlândia (UFU), Uberlândia, MG, Brazil
| | | | - Veridiana de Melo Rodrigues
- Laboratory of Biochemistry and Animal Toxins, Institute of Biotechnology, Federal University of Uberlandia (UFU), Uberlândia-MG, Brazil
| | - Daiana Silva Lopes
- Institute Multidisciplinary in Health, Federal University of Bahia (UFBA), Vitória da Conquista, BA, Brazil.
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Smith MR, Naeli P, Jafarnejad SM, Costa G. The scaffolding protein AKAP12 regulates mRNA localization and translation. Proc Natl Acad Sci U S A 2024; 121:e2320609121. [PMID: 38652739 DOI: 10.1073/pnas.2320609121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/22/2024] [Indexed: 04/25/2024] Open
Abstract
Regulation of subcellular messenger (m)RNA localization is a fundamental biological mechanism, which adds a spatial dimension to the diverse layers of post-transcriptional control of gene expression. The cellular compartment in which mRNAs are located may define distinct aspects of the encoded proteins, ranging from production rate and complex formation to localized activity. Despite the detailed roles of localized mRNAs that have emerged over the past decades, the identity of factors anchoring mRNAs to subcellular domains remains ill-defined. Here, we used an unbiased method to profile the RNA-bound proteome in migrating endothelial cells (ECs) and discovered that the plasma membrane (PM)-associated scaffolding protein A-kinase anchor protein (AKAP)12 interacts with various mRNAs, including transcripts encoding kinases with Actin remodeling activity. In particular, AKAP12 targets a transcript coding for the kinase Abelson Tyrosine-Protein Kinase 2 (ABL2), which we found to be necessary for adequate filopodia formation and angiogenic sprouting. Moreover, we demonstrate that AKAP12 is necessary for anchoring ABL2 mRNA to the PM and show that in the absence of AKAP12, the translation efficiency of ABL2 mRNA is reduced. Altogether, our work identified a unique post-transcriptional function for AKAP12 and sheds light into mechanisms of spatial control of gene expression.
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Affiliation(s)
- Madeleine R Smith
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, Belfast BT9 7BL, United Kingdom
| | - Parisa Naeli
- The Patrick G Johnston Centre for Cancer Research, Queen's University, Belfast BT9 7BL, United Kingdom
| | - Seyed M Jafarnejad
- The Patrick G Johnston Centre for Cancer Research, Queen's University, Belfast BT9 7BL, United Kingdom
| | - Guilherme Costa
- Wellcome-Wolfson Institute for Experimental Medicine, Queen's University, Belfast BT9 7BL, United Kingdom
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Fischer S, Lichtenthaeler C, Stepanenko A, Heyl F, Maticzka D, Kemmerer K, Klostermann M, Backofen R, Zarnack K, Weigand JE. Heterogenous nuclear ribonucleoprotein D-like controls endothelial cell functions. Biol Chem 2024; 405:229-239. [PMID: 37942876 DOI: 10.1515/hsz-2023-0254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/19/2023] [Indexed: 11/10/2023]
Abstract
HnRNPs are ubiquitously expressed RNA-binding proteins, tightly controlling posttranscriptional gene regulation. Consequently, hnRNP networks are essential for cellular homeostasis and their dysregulation is associated with cancer and other diseases. However, the physiological function of hnRNPs in non-cancerous cell systems are poorly understood. We analyzed the importance of HNRNPDL in endothelial cell functions. Knockdown of HNRNPDL led to impaired proliferation, migration and sprouting of spheroids. Transcriptome analysis identified cyclin D1 (CCND1) and tropomyosin 4 (TPM4) as targets of HNRNPDL, reflecting the phenotypic changes after knockdown. Our findings underline the importance of HNRNPDL for the homeostasis of physiological processes in endothelial cells.
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Affiliation(s)
- Sandra Fischer
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
| | - Chiara Lichtenthaeler
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
| | - Anastasiya Stepanenko
- Buchmann Institute for Molecular Life Sciences and Institute of Molecular Biosciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt am Main, Germany
| | - Florian Heyl
- Department of Bioinformatics, University of Freiburg, Georges-Köhler-Allee 106, D-79110 Freiburg, Germany
| | - Daniel Maticzka
- Department of Bioinformatics, University of Freiburg, Georges-Köhler-Allee 106, D-79110 Freiburg, Germany
| | - Katrin Kemmerer
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
| | - Melina Klostermann
- Buchmann Institute for Molecular Life Sciences and Institute of Molecular Biosciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt am Main, Germany
| | - Rolf Backofen
- Department of Bioinformatics, University of Freiburg, Georges-Köhler-Allee 106, D-79110 Freiburg, Germany
| | - Kathi Zarnack
- Buchmann Institute for Molecular Life Sciences and Institute of Molecular Biosciences, Goethe University Frankfurt, Max-von-Laue-Str. 15, D-60438 Frankfurt am Main, Germany
| | - Julia E Weigand
- Department of Pharmacy, Institute of Pharmaceutical Chemistry, University of Marburg, Marbacher Weg 6, D-35037 Marburg, Germany
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50
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Huang TL, Jiang WJ, Zhou Z, Shi TF, Yu M, Yu M, Si JQ, Wang YP, Li L. Quercetin attenuates cisplatin-induced mitochondrial apoptosis via PI3K/Akt mediated inhibition of oxidative stress in pericytes and improves the blood labyrinth barrier permeability. Chem Biol Interact 2024; 393:110939. [PMID: 38490643 DOI: 10.1016/j.cbi.2024.110939] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 02/26/2024] [Accepted: 03/04/2024] [Indexed: 03/17/2024]
Abstract
Cisplatin (CDDP) is broadly employed to treat different cancers, whereas there are no drugs approved by the Food and Drug Administration (FDA) for preventing its side effects, including ototoxicity. Quercetin (QU) is a widely available natural flavonoid compound with anti-tumor and antioxidant properties. The research was designed to explore the protective effects of QU on CDDP-induced ototoxicity and its underlying mechanisms in male C57BL/6 J mice and primary cultured pericytes (PCs). Hearing changes, morphological changes of stria vascularis, blood labyrinth barrier (BLB) permeability and expression of apoptotic proteins were observed in vivo by using the auditory brainstem response (ABR) test, HE staining, Evans blue staining, immunohistochemistry, western blotting, etc. Oxidative stress levels, mitochondrial function and endothelial barrier changes were observed in vitro by using DCFH-DA probe detection, flow cytometry, JC-1 probe, immunofluorescence and the establishment in vitro BLB models, etc. QU pretreatment activates the PI3K/AKT signaling pathway, inhibits CDDP-induced oxidative stress, protects mitochondrial function, and reduces mitochondrial apoptosis in PCs. However, PI3K/AKT specific inhibitor (LY294002) partially reverses the protective effects of QU. In addition, in vitro BLB models were established by coculturing PCs and endothelial cells (ECs), which suggests that QU both reduces the CDDP-induced apoptosis in PCs and improves the endothelial barrier permeability. On the whole, the research findings suggest that QU can be used as a novel treatment to reduce CDDP-induced ototoxicity.
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Affiliation(s)
- Tian-Lan Huang
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Wen-Jun Jiang
- Department of Physiology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310051, China; Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China
| | - Zan Zhou
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Tian-Feng Shi
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Miao Yu
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Meng Yu
- Department of Physiology, Zhejiang Chinese Medical University, Hangzhou, Zhejiang, 310051, China; Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China
| | - Jun-Qiang Si
- Department of Physiology, Medical College of Shihezi University, Shihezi, Xinjiang, 832000, China
| | - Yan-Ping Wang
- Department of Nursing, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China.
| | - Li Li
- Department of Physiology, Medical College of Jiaxing University, Jiaxing, Zhejiang, 314000, China.
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