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Qi HY, Zhao Z, Wei BH, Li ZF, Tan FQ, Yang WX. ERK/CREB and p38 MAPK/MMP14 Signaling Pathway Influences Spermatogenesis through Regulating the Expression of Junctional Proteins in Eriocheir sinensis Testis. Int J Mol Sci 2024; 25:7361. [PMID: 39000467 PMCID: PMC11242087 DOI: 10.3390/ijms25137361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2024] [Revised: 06/25/2024] [Accepted: 07/01/2024] [Indexed: 07/16/2024] Open
Abstract
The hemolymph-testis barrier (HTB) is a reproduction barrier in Crustacea, guaranteeing the safe and smooth process of spermatogenesis, which is similar to the blood-testis barrier (BTB) in mammals. The MAPK signaling pathway plays an essential role in spermatogenesis and maintenance of the BTB. However, only a few studies have focused on the influence of MAPK on crustacean reproduction. In the present study, we knocked down and inhibited MAPK in Eriocheir sinensis. Increased defects in spermatogenesis were observed, concurrently with a damaged HTB. Further research revealed that es-MMP14 functions downstream of ERK and p38 MAPK and degrades junctional proteins (Pinin and ZO-1); es-CREB functions in the ERK cascade as a transcription factor of ZO-1. In addition, when es-MMP14 and es-CREB were deleted, the defects in HTB and spermatogenesis aligned with abnormalities in the MAPK. However, JNK impacts the integrity of the HTB by changing the distribution of intercellular junctions. In summary, the MAPK signaling pathway maintains HTB integrity and spermatogenesis through es-MMP14 and es-CREB, which provides insights into the evolution of gene function during barrier evolution.
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Affiliation(s)
- Hong-Yu Qi
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhan Zhao
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Bang-Hong Wei
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhen-Fang Li
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
| | - Fu-Qing Tan
- School of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Wan-Xi Yang
- The Sperm Laboratory, College of Life Sciences, Zhejiang University, Hangzhou 310058, China
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2
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Wang L, Chen Y, Wu H, Yu HH, Ma L. Slit2-Robo4 signal pathway and tight junction in intestine mediate LPS-induced inflammation in mice. Eur J Med Res 2024; 29:349. [PMID: 38937814 PMCID: PMC11209965 DOI: 10.1186/s40001-024-01894-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Accepted: 05/21/2024] [Indexed: 06/29/2024] Open
Abstract
BACKGROUND Sepsis is one of the most common clinical diseases, which is characterized by a serious and uncontrollable inflammatory response. LPS-induced inflammation is a critical pathological event in sepsis, but the underlying mechanism has not yet been fully elucidated. METHODS The animal model was established for two batches. In the first batch of experiments, Adult C57BL/6J mice were randomly divided into control group and LPS (5 mg/kg, i.p.)group . In the second batch of experiments, mice were randomly divided into control group, LPS group, and LPS+VX765(10 mg/kg, i.p., an inhibitor of NLRP3 inflammasome) group. After 24 hours, mice were anesthetized with isoflurane, blood and intestinal tissue were collected for tissue immunohistochemistry, Western blot analysis and ELISA assays. RESULTS The C57BL/6J mice injected with LPS for twenty-four hours could exhibit severe inflammatory reaction including an increased IL-1β, IL-18 in serum and activation of NLRP3 inflammasome in intestine. The injection of VX765 could reverse these effects induced by LPS. These results indicated that the increased level of IL-1β and IL-18 in serum induced by LPS is related to the increased intestinal permeability and activation of NLRP3 inflammasome. In the second batch of experiments, results of western blot and immunohistochemistry showed that Slit2 and Robo4 were significant decreased in intestine of LPS group, while the expression of VEGF was significant increased. Meanwhile, the protein level of tight junction protein ZO-1, occludin, and claudin-5 were significantly lower than in control group, which could also be reversed by VX765 injection. CONCLUSIONS In this study, we revealed that Slit2-Robo4 signaling pathway and tight junction in intestine may be involved in LPS-induced inflammation in mice, which may account for the molecular mechanism of sepsis.
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Affiliation(s)
- Lv Wang
- Department of Emergency and Critical Care Medicine, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, People's Republic of China
| | - Yingtai Chen
- Emergency Department, Baoshan Branch of Renji Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai, 200444, People's Republic of China
| | - Hao Wu
- Department of Emergency and Critical Care Medicine, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, People's Republic of China
| | - He-Hua Yu
- Department of Emergency and Critical Care Medicine, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, People's Republic of China.
| | - Linhao Ma
- Department of Emergency and Critical Care Medicine, Shanghai Changzheng Hospital, Naval Medical University, Shanghai, 200003, People's Republic of China.
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3
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Yang L, Huang GH, Zhang ZX, Pei YC, Lv SQ. Bedside ultrasound-assisted puncture and drainage under local anesthesia: A novel approach for early post-operative space-occupying tumor bed cysts of glioma resection. J Clin Neurosci 2024; 126:68-74. [PMID: 38850763 DOI: 10.1016/j.jocn.2024.05.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/09/2024] [Accepted: 05/26/2024] [Indexed: 06/10/2024]
Abstract
OBJECTIVES To investigate the causes of space-occupying tumor bed cysts formed early after glioma resection by measuring the osmotic pressure gradient between cystic fluid, serum, and cerebrospinal fluid (CSF) and propose a new method of bedside ultrasound-assisted puncture and drainage (UAP&D) under local anesthesia for treatment. METHODS Bedside UAP&D under local anesthesia was performed through a burr hole on the skull flap.Following a successful puncture, cystic fluid was collected, while blood and CSF were obtained through vein and lumbar puncture, respectively. The osmotic pressure of all fluids collected was measured. The appearance, biochemical composition, and results of microbial culture of cystic fluid and CSF were analyzed. Within 24 h after UAP&D, a CT examination and Glasgow coma scale (GCS) were assessed. RESULTS The osmotic pressure of cystic fluid was higher than that of serum and CSF. White blood cell count and protein concentration were higher in the cystic fluid compared to the CSF. Conversely, the concentration of chloride ions and glucose were lower. CT scan confirmed the correct placement of the cysts' drainage tube and that the cysts' volume decreased significantly with continued drainage. Accompanied by a reduction in the volume of cysts, there were significant improvements in GCS score within 24 h after UAP&D. All drainage tubes were removed within 2-5 days, and no puncture tract hemorrhage or infection was observed. CONCLUSION The osmotic pressure gradient between cystic fluid, serum, and CSF caused the formation of early post-operative space-occupying tumor bed cysts for glioma. UAP&D aligns with the concept that micro-invasive neurosurgery is an effective treatment method for such cysts.
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Affiliation(s)
- Lin Yang
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing City 400037, PR China
| | - Guo-Hao Huang
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing City 400037, PR China
| | - Zuo-Xin Zhang
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing City 400037, PR China
| | - Yu-Chun Pei
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing City 400037, PR China.
| | - Sheng-Qing Lv
- Department of Neurosurgery, Xinqiao Hospital, Army Medical University, Chongqing City 400037, PR China.
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4
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Noh B, Blasco‐Conesa MP, Rahman SM, Monga S, Ritzel R, Guzman G, Lai Y, Ganesh BP, Urayama A, McCullough LD, Moruno‐Manchon JF. Iron overload induces cerebral endothelial senescence in aged mice and in primary culture in a sex-dependent manner. Aging Cell 2023; 22:e13977. [PMID: 37675802 PMCID: PMC10652299 DOI: 10.1111/acel.13977] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 08/13/2023] [Accepted: 08/16/2023] [Indexed: 09/08/2023] Open
Abstract
Iron imbalance in the brain negatively affects brain function. With aging, iron levels increase in the brain and contribute to brain damage and neurological disorders. Changes in the cerebral vasculature with aging may enhance iron entry into the brain parenchyma, leading to iron overload and its deleterious consequences. Endothelial senescence has emerged as an important contributor to age-related changes in the cerebral vasculature. Evidence indicates that iron overload may induce senescence in cultured cell lines. Importantly, cells derived from female human and mice generally show enhanced senescence-associated phenotype, compared with males. Thus, we hypothesize that cerebral endothelial cells (CEC) derived from aged female mice are more susceptible to iron-induced senescence, compared with CEC from aged males. We found that aged female mice, but not males, showed cognitive deficits when chronically treated with ferric citrate (FC), and their brains and the brain vasculature showed senescence-associated phenotype. We also found that primary culture of CEC derived from aged female mice, but not male-derived CEC, exhibited senescence-associated phenotype when treated with FC. We identified that the transmembrane receptor Robo4 was downregulated in the brain vasculature and in cultured primary CEC derived from aged female mice, compared with those from male mice. We discovered that Robo4 downregulation contributed to enhanced vulnerability to FC-induced senescence. Thus, our study identifies Robo4 downregulation as a driver of senescence induced by iron overload in primary culture of CEC and a potential risk factor of brain vasculature impairment and brain dysfunction.
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Affiliation(s)
- Brian Noh
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Maria Pilar Blasco‐Conesa
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Syed Mushfiqur Rahman
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Sheelu Monga
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Rodney Ritzel
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Gary Guzman
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Yun‐Ju Lai
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
- Solomont School of NursingZuckerberg College of Health SciencesUniversity of Massachusetts LowellLowellMassachusettsUSA
| | - Bhanu Priya Ganesh
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Akihiko Urayama
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Louise D. McCullough
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
| | - Jose Felix Moruno‐Manchon
- Department of NeurologyMcGovern Medical School at the University of Texas Health Science Center at HoustonHoustonTexasUSA
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Nardou R, Sawyer E, Song YJ, Wilkinson M, Padovan-Hernandez Y, de Deus JL, Wright N, Lama C, Faltin S, Goff LA, Stein-O'Brien GL, Dölen G. Psychedelics reopen the social reward learning critical period. Nature 2023; 618:790-798. [PMID: 37316665 PMCID: PMC10284704 DOI: 10.1038/s41586-023-06204-3] [Citation(s) in RCA: 40] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 05/11/2023] [Indexed: 06/16/2023]
Abstract
Psychedelics are a broad class of drugs defined by their ability to induce an altered state of consciousness1,2. These drugs have been used for millennia in both spiritual and medicinal contexts, and a number of recent clinical successes have spurred a renewed interest in developing psychedelic therapies3-9. Nevertheless, a unifying mechanism that can account for these shared phenomenological and therapeutic properties remains unknown. Here we demonstrate in mice that the ability to reopen the social reward learning critical period is a shared property across psychedelic drugs. Notably, the time course of critical period reopening is proportional to the duration of acute subjective effects reported in humans. Furthermore, the ability to reinstate social reward learning in adulthood is paralleled by metaplastic restoration of oxytocin-mediated long-term depression in the nucleus accumbens. Finally, identification of differentially expressed genes in the 'open state' versus the 'closed state' provides evidence that reorganization of the extracellular matrix is a common downstream mechanism underlying psychedelic drug-mediated critical period reopening. Together these results have important implications for the implementation of psychedelics in clinical practice, as well as the design of novel compounds for the treatment of neuropsychiatric disease.
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Affiliation(s)
- Romain Nardou
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Edward Sawyer
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Young Jun Song
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Makenzie Wilkinson
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Yasmin Padovan-Hernandez
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Júnia Lara de Deus
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Noelle Wright
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Carine Lama
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Sehr Faltin
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Loyal A Goff
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- Department of Oncology, Division of Biostatistics and Bioinformatics, Sidney Kimmel Comprehensive Cancer Center, Baltimore, MD, USA
- McKusick-Nathans Department of Genetic Medicine, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Genevieve L Stein-O'Brien
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
- The Kavli Neuroscience Discovery Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA
| | - Gül Dölen
- The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
- The Brain Science Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
- The Kavli Neuroscience Discovery Institute, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
- The Department of Neurology, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
- The Center for Psychedelics and Consciousness Research, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
- The Wendy Klag Institute for Autism and Developmental Disabilities, Johns Hopkins University, School of Medicine, Baltimore, MD, USA.
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6
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Adzraku SY, Wang G, Cao C, Bao Y, Wang Y, Smith AO, Du Y, Wang H, Li Y, Xu K, Qiao J, Ju W, Zeng L. Robo4 inhibits gamma radiation-induced permeability of a murine microvascular endothelial cell by regulating the junctions. Cell Mol Biol Lett 2023; 28:2. [PMID: 36647012 PMCID: PMC9843922 DOI: 10.1186/s11658-022-00413-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Accepted: 12/19/2022] [Indexed: 01/18/2023] Open
Abstract
BACKGROUND Hematopoietic stem cell transplantation involves irradiation preconditioning which causes bone marrow endothelial cell dysfunction. While much emphasis is on the reconstitution of hematopoietic stem cells in the bone marrow microenvironment, endothelial cell preservation is indispensable to overcome the preconditioning damages. This study aims to ascertain the role of Roundabout 4 (Robo4) in regulating irradiation-induced damage to the endothelium. METHODS Microvascular endothelial cells were treated with γ-radiation to establish an endothelial cell injury model. Robo4 expression in the endothelial cells was manipulated employing lentiviral-mediated RNAi and gene overexpression technology before irradiation treatment. The permeability of endothelial cells was measured using qPCR, immunocytochemistry, and immunoblotting to analyze the effect on the expression and distribution of junctional molecules, adherens junctions, tight junctions, and gap junctions. Using Transwell endothelial monolayer staining, FITC-Dextran permeability, and gap junction-mediated intercellular communication (GJIC) assays, we determined the changes in endothelial functions after Robo4 gene manipulation and irradiation. Moreover, we measured the proportion of CD31 expression in endothelial cells by flow cytometry. We analyzed variations between two or multiple groups using Student's t-tests and ANOVA. RESULTS Ionizing radiation upregulates Robo4 expression but disrupts endothelial junctional molecules. Robo4 deletion causes further degradation of endothelial junctions hence increasing the permeability of the endothelial cell monolayer. Robo4 knockdown in microvascular endothelial cells increases the degradation and delocalization of ZO-1, PECAM-1, occludin, and claudin-5 molecules after irradiation. Conversely, connexin 43 expression increases after silencing Robo4 in endothelial cells to induce permeability but are readily destroyed when exposed to 10 Gy of gamma radiation. Also, Robo4 knockdown enhances Y731-VE-cadherin phosphorylation leading to the depletion and destabilization of VE-cadherin at the endothelial junctions following irradiation. However, Robo4 overexpression mitigates irradiation-induced degradation of tight junctional proteins and stabilizes claudin-5 and ZO-1 distribution. Finally, the enhanced expression of Robo4 ameliorates the irradiation-induced depletion of VE-cadherin and connexin 43, improves the integrity of microvascular endothelial cell junctions, and decreases permeability. CONCLUSION This study reveals that Robo4 maintains microvascular integrity after radiation preconditioning treatment by regulating endothelial permeability and protecting endothelial functions. Our results also provided a potential mechanism to repair the bone marrow vascular niche after irradiation by modulating Robo4 expression.
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Affiliation(s)
- Seyram Yao Adzraku
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,Xuzhou Ruihu Health Management Consulting Co., Ltd, Xuzhou, 221002 China
| | - Guozhang Wang
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,Xuzhou Ruihu Health Management Consulting Co., Ltd, Xuzhou, 221002 China
| | - Can Cao
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,Xuzhou Ruihu Health Management Consulting Co., Ltd, Xuzhou, 221002 China
| | - Yurong Bao
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Yizhou Wang
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Alhaji Osman Smith
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Yuwei Du
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Haiyang Wang
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Yue Li
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Kailin Xu
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Jianlin Qiao
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
| | - Wen Ju
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China ,Xuzhou Ruihu Health Management Consulting Co., Ltd, Xuzhou, 221002 China
| | - Lingyu Zeng
- grid.417303.20000 0000 9927 0537Blood Diseases Institute, Xuzhou Medical University, Xuzhou, 221002 China ,Key Laboratory of Bone Marrow Stem Cell, Xuzhou, 221002 Jiangsu China ,grid.413389.40000 0004 1758 1622Department of Hematology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002 China
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Yamanaka M, Hayashi M, Sonohara F, Yamada S, Tanaka H, Sakai A, Mii S, Kobayashi D, Kurimoto K, Tanaka N, Inokawa Y, Takami H, Hattori N, Kanda M, Tanaka C, Nakayama G, Koike M, Kodera Y. Downregulation of ROBO4 in Pancreatic Cancer Serves as a Biomarker of Poor Prognosis and Indicates Increased Cell Motility and Proliferation Through Activation of MMP-9. Ann Surg Oncol 2022; 29:7180-7189. [PMID: 35726111 DOI: 10.1245/s10434-022-12039-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Accepted: 05/30/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND The axon guidance gene family, SLIT/ROBO pathway, controls neural network formation, which correlates with the development of several cancers. METHODS We found through analysis of the public database that ROBO4, one of the axon guidance molecules among the SLIT/ROBO family, is significantly downregulated in primary pancreatic cancer tissues compared with adjacent normal tissues. We carried out transfection experiments using three pancreatic cancer cell lines (MiaPaCa-2, BxPC-3, and SW1990) and one pancreatic duct epithelial cell line (HPDE6c7). A total of 51 clinical samples were then examined by immunohistochemical staining to find an association between ROBO4 expression at the protein level, clinical characteristics, and surgical outcomes. RESULTS ROBO4 overexpression suppressed the invasion and migration abilities in MiaPaCa-2 and BxPC-3, while ROBO4 siRNA transfection to SW1990 and HPDE6c7 enhanced those activities. PCR-based profiling detected MMP-9 as a candidate downstream target of ROBO4, which was validated by decreased MMP-9 activity after the ROBO4 overexpression assay. High ROBO4 expression clinical samples had significantly better overall survival rather than low ROBO4 cases (P = 0.048). CONCLUSION These findings suggest that decreased ROBO4 expression activates malignant phenotypes in cancer cells and is correlated with poor survival outcomes in pancreatic cancer.
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Affiliation(s)
- Masaya Yamanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masamichi Hayashi
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Fuminori Sonohara
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Suguru Yamada
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Haruyoshi Tanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akihiro Sakai
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shinji Mii
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daigo Kobayashi
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keisuke Kurimoto
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobutake Tanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshikuni Inokawa
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hideki Takami
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norifumi Hattori
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mitsuro Kanda
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Chie Tanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Goro Nakayama
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiko Koike
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
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8
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Ultrasonic Microbubble Cavitation Enhanced Tissue Permeability and Drug Diffusion in Solid Tumor Therapy. Pharmaceutics 2022; 14:pharmaceutics14081642. [PMID: 36015267 PMCID: PMC9414228 DOI: 10.3390/pharmaceutics14081642] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/31/2022] [Accepted: 08/04/2022] [Indexed: 01/21/2023] Open
Abstract
Chemotherapy has an essential role not only in advanced solid tumor therapy intervention but also in society’s health at large. Chemoresistance, however, seriously restricts the efficiency and sensitivity of chemotherapeutic agents, representing a significant threat to patients’ quality of life and life expectancy. How to reverse chemoresistance, improve efficacy sensitization response, and reduce adverse side effects need to be tackled urgently. Recently, studies on the effect of ultrasonic microbubble cavitation on enhanced tissue permeability and retention (EPR) have attracted the attention of researchers. Compared with the traditional targeted drug delivery regimen, the microbubble cavitation effect, which can be used to enhance the EPR effect, has the advantages of less trauma, low cost, and good sensitization effect, and has significant application prospects. This article reviews the research progress of ultrasound-mediated microbubble cavitation in the treatment of solid tumors and discusses its mechanism of action to provide new ideas for better treatment strategies.
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9
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Sherchan P, Travis ZD, Tang J, Zhang JH. The potential of Slit2 as a therapeutic target for central nervous system disorders. Expert Opin Ther Targets 2020; 24:805-818. [PMID: 32378435 PMCID: PMC7529836 DOI: 10.1080/14728222.2020.1766445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Accepted: 05/05/2020] [Indexed: 10/24/2022]
Abstract
Introduction: Slit2 is an extracellular matrix protein that regulates migration of developing axons during central nervous system (CNS) development. Roundabout (Robo) receptors expressed by various cell types in the CNS, mediate intracellular signal transduction pathways for Slit2. Recent studies indicate that Slit2 plays important protective roles in a myriad of processes such as cell migration, immune response, vascular permeability, and angiogenesis in CNS pathologies. Areas covered: This review provides an overview of the diverse functions of Slit2 in CNS disorders and discusses the potential of Slit2 as a therapeutic target. We reviewed preclinical studies reporting the role of Slit2 in various CNS disease models, transgenic animal research, and rodent models that utilized Slit2 as a therapy. Expert opinion: Slit2 exerts a wide array of beneficial effects ranging from anti-migration, blood-brain barrier (BBB) protection, inhibition of peripheral immune cell infiltration, and anti-apoptosis in various disease models. However, a dual role of Slit2 in endothelial permeability has been observed in transgenic animals. Further research on Slit2 will be crucial including key issues such as effects of transgenic overexpression versus exogenous Slit2, function of Slit2 dependent on cellular expression of Robo receptors and the underlying pathology for potential clinical translation.
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Affiliation(s)
- Prativa Sherchan
- Center for Neuroscience Research, Department of Physiology and Pharmacology, Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA
| | - Zachary D. Travis
- Department of Earth and Biological Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA and Center for Neuroscience Research, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
- Department of Physiology and Pharmacology, Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA
| | - John H. Zhang
- Center for Neuroscience Research, Department of Physiology and Pharmacology, Basic Sciences, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA
- Departments of Anesthesiology, Neurosurgery and Neurology, Loma Linda University School of Medicine, Loma Linda, CA 92354, USA
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10
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Liu X, Wu P, Su R, Xue Y, Yang C, Wang D, Ruan X, Zheng J, Yang Y, Li Z, Liu Y. IGF2BP2 stabilized FBXL19-AS1 regulates the blood-tumour barrier permeability by negatively regulating ZNF765 by STAU1-mediated mRNA decay. RNA Biol 2020; 17:1777-1788. [PMID: 32713259 DOI: 10.1080/15476286.2020.1795583] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Blood-tumour barrier (BTB) has been known to significantly attenuate the efficacy of chemotherapy for glioma. In this report, we identified that insulin-like grown factor 2 mRNA-binding protein 2 (IGF2BP2) was over-expressed in glioma microvessel and glioma endothelial cells (GECs). Knockdown of IGF2BP2 decreased the expression of lncRNA FBXL19-AS1 and tight junction-related proteins, thereby promoting BTB permeability. FBXL19-AS1 was over-expressed and more enriched in the cytoplasm of GECs. In addition, FBXL19-AS1 could bind to 3'-UTR of ZNF765 mRNA and down-regulate ZNF765 mRNA expression through STAU1-mediated mRNA decay (SMD). The low expression of ZNF765 was discovered in GECs and verified to increase BTB permeability by inhibiting the promoter activities of tight junction-related proteins. Meanwhile, ZNF765 also inhibited the transcriptional activity of IGF2BP2, thereby forming a feedback loop in regulating the BTB permeability. Single or combined application of silenced IGF2BP2 and FBXL19-AS1 improved the delivery and antitumor efficiency of doxorubicin (DOX). In general, our study revealed the regulation mechanism of IGF2BP2/FBXL19-AS1/ZNF765 axis on BTB permeability, which may provide valuable insight into treatment strategy for glioma.
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Affiliation(s)
- Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
| | - Peiqi Wu
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, China
| | - Rui Su
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
| | - Yang Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, China
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11
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Na Nakorn P, Pannengpetch S, Isarankura-Na-Ayudhya P, Thippakorn C, Lawung R, Sathirapongsasuti N, Kitiyakara C, Sritara P, Vathesatogkit P, Isarankura-Na-Ayudhya C. Roles of kininogen-1, basement membrane specific heparan sulfate proteoglycan core protein, and roundabout homolog 4 as potential urinary protein biomarkers in diabetic nephropathy. EXCLI JOURNAL 2020; 19:872-891. [PMID: 32665774 PMCID: PMC7355151 DOI: 10.17179/excli2020-1396] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 06/15/2020] [Indexed: 12/24/2022]
Abstract
Diabetic nephropathy, a major complication of diabetes mellitus (DM), is increasing worldwide and the large majority of patients have type 2 DM. Microalbuminuria has been used as a diagnostic marker of diabetic nephropathy. But owing to its insufficient sensitivity and specificity, other biomarkers are being sought. In addition, the pathophysiology of diabetic nephropathy is not fully understood and declines in renal function occur even without microalbuminuria. In this study, we investigated urinary proteins from three study groups (controls, and type 2 diabetic subjects with or without microalbuminuria). Non-targeted label-free Nano-LC QTOF analysis was conducted to discover underlying mechanisms and protein networks, and targeted label-free Nano-LC QTOF with SWATH was performed to qualify discovered protein candidates. Twenty-eight proteins were identified as candidates and functionally analyzed via String DB, gene ontology and pathway analysis. Four predictive mechanisms were analyzed: i) response to stimulus, ii) platelet activation, signaling and aggregation, iii) ECM-receptor interaction, and iv) angiogenesis. These mechanisms can provoke kidney dysfunction in type 2 diabetic patients via endothelial cell damage and glomerulus structural alteration. Based on these analyses, three proteins (kininogen-1, basement membrane-specific heparan sulfate proteoglycan core protein, and roundabout homolog 4) were proposed for further study as potential biomarkers. Our findings provide insights that may improve methods for both prevention and diagnosis of diabetic nephropathy.
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Affiliation(s)
- Piyada Na Nakorn
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Supitcha Pannengpetch
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakornpathom, Thailand
| | | | - Chadinee Thippakorn
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakornpathom, Thailand
| | - Ratana Lawung
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University, Bangkok, Thailand
| | - Nuankanya Sathirapongsasuti
- Section for Translational Medicine, Research Center, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Chagriya Kitiyakara
- Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Piyamitr Sritara
- Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
| | - Prin Vathesatogkit
- Department of Medicine, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand
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12
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Yang C, Zheng J, Liu X, Xue Y, He Q, Dong Y, Wang D, Li Z, Liu L, Ma J, Cai H, Liu Y. Role of ANKHD1/LINC00346/ZNF655 Feedback Loop in Regulating the Glioma Angiogenesis via Staufen1-Mediated mRNA Decay. MOLECULAR THERAPY. NUCLEIC ACIDS 2020; 20:866-878. [PMID: 32464549 PMCID: PMC7256448 DOI: 10.1016/j.omtn.2020.05.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 12/11/2022]
Abstract
Accumulating evidence shows that long noncoding RNA (lncRNA) dysregulation plays a critical role in tumor angiogenesis. Glioma is characterized by abundant angiogenesis. Herein, we investigated the expression and function of LINC00346 in the regulation of glioma angiogenesis. The present study first demonstrated that ANKHD1 (ankyrin repeat and KH domain-containing protein 1) and LINC00346 were significantly increased in glioma-associated endothelial cells (GECs), whereas ZNF655 (zinc finger protein 655) was decreased in GECs. Meanwhile, ANKHD1 inhibition, LINC00346 inhibition, or ZNF655 overexpression impeded angiogenesis of GECs. Moreover, ANKHD1 targeted LINC00346 and enhanced the stability of LINC00346. In addition, LINC00346 bound to ZNF655 mRNA through their Alu elements so that LINC00346 facilitated the degradation of ZNF655 mRNA via a STAU1 (Staufen1)-mediated mRNA decay (SMD) mechanism. Futhermore, ZNF655 targeted the promoter region of ANKHD1 and formed an ANKHD1/LINC00346/ZNF655 feedback loop that regulated glioma angiogenesis. Finally, knockdown of ANKHD1 and LINC00346, combined with overexpression of ZNF655, resulted in a significant decrease in new vessels and hemoglobin content in vivo. The results identified an ANKHD1/LINC00346/ZNF655 feedback loop in the regulation of glioma angiogenesis that may provide new targets and strategies for targeted therapy against glioma.
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Affiliation(s)
- Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, China
| | - Qianru He
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, China
| | - Yiming Dong
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China; Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China.
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13
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Liu Q, Zhu L, Liu X, Zheng J, Liu Y, Ruan X, Cao S, Cai H, Li Z, Xue Y. TRA2A-induced upregulation of LINC00662 regulates blood-brain barrier permeability by affecting ELK4 mRNA stability in Alzheimer's microenvironment. RNA Biol 2020; 17:1293-1308. [PMID: 32372707 DOI: 10.1080/15476286.2020.1756055] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The blood-brain barrier (BBB) plays a pivotal role in the maintenance and regulation of the neural microenvironment. The BBB breakdown is a pathological change in early Alzheimer's disease (AD). RNA-binding proteins (RBPs) and long non-coding RNAs (lncRNAs) are involved in the regulation of BBB permeability. Our study demonstrates the role of TRA2A/LINC00662/ELK4 axis in regulating BBB permeability in AD microenvironment. In Aβ1-42-incubated microvascular endothelial cells (ECs) of the BBB model in vitro, TRA2A and LINC00662 were enriched. TRA2A increased the stability of LINC00662 by binding with it. The knockdown of either TRA2A or LINC00662 decreased BBB permeability due to increased expression of tight junction-related proteins. ELK4 was less expressed in the BBB model in AD microenvironment in vitro. LINC00662 mediated the degradation of ELK4 mRNA by SMD pathway. Downregulation of ELK4 increased BBB permeability by increasing the tight junction-related protein expression.TRA2A/LINC00662/ELK4 axis plays a crucial role in the regulation of BBB permeability in AD microenvironment, which may provide a novel target for the therapy of AD.
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Affiliation(s)
- Qianshuo Liu
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, People's Republic of China
| | - Lu Zhu
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, People's Republic of China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, People's Republic of China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, People's Republic of China
| | - Shuo Cao
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, People's Republic of China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, People's Republic of China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University , Shenyang, People's Republic of China.,Liaoning Clinical Medical Research Center in Nervous System Disease , Shenyang, People's Republic of China.,Key Laboratory of Neuro-oncology in Liaoning Province , Shenyang, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University , Shenyang, People's Republic of China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University , Shenyang, People's Republic of China
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14
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Zhang Y, Zhao Y, Wu Y, Qi J, Li F, Kou J, Yu B. Ophiopogon Saponin C1 Inhibits Lung Tumors by Stabilizing Endothelium Permeability via Inhibition of PKCδ. Int J Biol Sci 2020; 16:396-407. [PMID: 32015677 PMCID: PMC6990896 DOI: 10.7150/ijbs.34978] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 11/12/2019] [Indexed: 11/13/2022] Open
Abstract
As the most frequent cause of cancer-related death worldwide, lung cancer is closely related to inflammation. The interaction between tumor cells and inflammatory cells promotes tumor development and metastasis. During tumor development, vascular endothelial cells form the most important barrier to prevent tumor cell migration to the blood and tissue. Increased vascular permeability provides favorable conditions for the migration of tumor cells, and endothelial tight junctions are an important component of the vascular barrier. Protein kinase C δ is involved in the occurrence of non-small cell lung cancer and regulates vascular permeability and tight junction protein expression. Src kinase was reported to play an important role in TNF-α-induced endothelial inflammation. Ophiopogon Saponin C1 is a new chemical compound isolated from Liriope muscari, but its pharmacological activities have not been fully elucidated. Therefore, we tested the protective effects of C1 on endothelial permeability in a model of TNF-α-induced endothelial inflammation by transendothelial electrical resistance and sodium fluorescein assays and verified these results in a nude mouse model of experimental pulmonary adenocarcinoma metastasis. We further elucidated the mechanism of C1, which was based on the PKCδ and Src proteins, by Western blotting. C1 can inhibit lung cancer in vivo, regulate the level of plasma inflammation in tumor-bearing mice, and protect the pulmonary vascular barrier against injury induced by cancer. It was investigated the expression and distribution of the TJ index protein ZO-1 in mouse vascular endothelium and HUVECs and found that C1 could inhibit the degradation and breakage of the ZO-1 protein. Related signaling experiments confirmed that C1 can inhibit TNF-α and activation of PKCδ and Src kinase. This study laid the foundation for further analysis of new drugs with clear mechanisms and independent intellectual property rights of traditional Chinese medicines.
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Affiliation(s)
| | | | | | | | | | - Junping Kou
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, China
| | - Boyang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, School of Traditional Chinese Pharmacy, China Pharmaceutical University, 639 Longmian Road, Nanjing 211198, China
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15
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Guo J, Shen S, Liu X, Ruan X, Zheng J, Liu Y, Liu L, Ma J, Ma T, Shao L, Wang D, Yang C, Xue Y. Role of linc00174/miR-138-5p (miR-150-5p)/FOSL2 Feedback Loop on Regulating the Blood-Tumor Barrier Permeability. MOLECULAR THERAPY. NUCLEIC ACIDS 2019; 18:1072-1090. [PMID: 31791014 PMCID: PMC6906710 DOI: 10.1016/j.omtn.2019.10.031] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Revised: 09/27/2019] [Accepted: 10/26/2019] [Indexed: 01/11/2023]
Abstract
The blood-tumor barrier (BTB) limits the transport of chemotherapeutic drugs to brain tumor tissues and impacts the treatment of glioma. Long non-coding RNAs play critical roles in various biological processes of tumors; however, the function of these in BTB permeability is still unclear. In this study, we have identified that long intergenic non-protein coding RNA 174 (linc00174) was upregulated in glioma endothelial cells (GECs) from glioma tissues. Additionally, linc00174 was also upregulated in GECs from the BTB model in vitro. Knock down of linc00174 increased BTB permeability and reduced the expression of the tight junction-related proteins ZO-1, occludin, and claudin-5. Both bioinformatics data and results of luciferase reporter assays demonstrated that linc00174 regulated BTB permeability by binding to miR-138-5p and miR-150-5p. Furthermore, knock down of linc00174 inhibited FOSL2 expression via upregulating miR-138-5p and miR-150-5p. FOSL2 interacted with the promoter regions and upregulated the promoter activity of ZO-1, occludin, claudin-5, and linc00174 in GECs. In conclusion, the present study demonstrated that the linc00174/miR-138-5p (miR-150-5p)/FOSL2 feedback loop played an essential role in regulating BTB permeability.
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Affiliation(s)
- Jizhe Guo
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Shuyuan Shen
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Xuelei Ruan
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Libo Liu
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Jun Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Teng Ma
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Lianqi Shao
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China
| | - Di Wang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Chunqing Yang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China; Liaoning Research Center for Translational Medicine in Nervous System Disease, Shenyang 110004, People's Republic of China; Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, School of Life Sciences, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang 110122, People's Republic of China; Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang 110122, People's Republic of China.
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16
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Gao Y, Wu P, Ma Y, Xue Y, Liu Y, Zheng J, Liu X, He Q, Ma J, Liu L, Wang P. Circular RNA USP1 regulates the permeability of blood-tumour barrier via miR-194-5p/FLI1 axis. J Cell Mol Med 2019; 24:342-355. [PMID: 31654502 PMCID: PMC6933377 DOI: 10.1111/jcmm.14735] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 09/21/2019] [Accepted: 09/26/2019] [Indexed: 12/14/2022] Open
Abstract
Recent studies indicate circular RNAs are related to dysregulation of vascular endothelial cell function, yet the underlying mechanisms have remained elusive. Here, we characterized the functional role of circular RNA USP1 (circ‐USP1) in the regulation of the blood‐tumour barrier (BTB) permeability and the potential mechanisms. In the current study, the circ‐USP1 expressing level was up‐regulated in glioma cerebral microvascular endothelial cells (GECs) of the BTB model in vitro. Knockdown of circ‐USP1 disrupted the barrier integrity, increased its permeability as well as reduced tight junction‐related protein claudin‐5, occludin and ZO‐1 expressions in GECs. Bioinformatic prediction and luciferase assay indicated that circ‐USP1 bound to miR‐194‐5p and suppressed its activity. MiR‐194‐5p contributed to circ‐USP1 knockdown‐induced increase of BTB permeability via targeting and down‐regulating transcription factor FLI1. Furthermore, FLI1 regulated the expressions of claudin‐5, occludin and ZO‐1 in GECs through binding to their promoter regions. Single or combined treatment of circ‐USP1 and miR‐194‐5p effectively promoted anti‐tumour drug doxorubicin across BTB to induce apoptosis of glioma cells. Overall, this present study identified the crucial regulation of circ‐USP1 on BTB permeability via miR‐194‐5p/FLI1 axis‐mediated regulation of tight junction proteins, which might facilitate the development of therapeutics against human gliomas.
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Affiliation(s)
- Yang Gao
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China.,Laboratory of Digital Health, Medaxis Technology Co., Ltd., Chengdu, China
| | - Peiqi Wu
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Yawen Ma
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China
| | - Qianru He
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Jun Ma
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Libo Liu
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Ping Wang
- Department of Neurobiology, College of Life Science, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
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17
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KHDRBS3 regulates the permeability of blood-tumor barrier via cDENND4C/miR-577 axis. Cell Death Dis 2019; 10:536. [PMID: 31296839 PMCID: PMC6624200 DOI: 10.1038/s41419-019-1771-2] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/16/2019] [Accepted: 06/26/2019] [Indexed: 02/07/2023]
Abstract
The existence of blood–tumor barrier (BTB) severely restricts the efficient delivery of antitumor drugs to cranial glioma tissues. Various strategies have been explored to increase BTB permeability. RNA-binding proteins and circular RNAs have recently emerged as potential regulators of endothelial cells functions. In this study, RNA-binding protein KH RNA-binding domain containing, signal transduction associated 3 (KHDRBS3) and circular RNA DENND4C (cDENND4C) were enriched in GECs. KHDRBS3 bound to cDENND4C and increased its stability. The knockdown of cDENND4C increased the permeability of BTB via downregulating the expressions of tight junction-related proteins. The miR-577 was lower expressed in GECs. The overexpressed miR-577 increased the permeability of BTB by reducing the tight junction-related protein expressions, and vice versa. Furthermore, cDENND4C acted as a molecular sponge of miR-577, which bound to miR-577 and inhibited its negative regulation of target genes ZO-1, occludin and claudin-1 to regulate BTB permeability. Single or combined treatment of KHDRBS3, cDENND4C, and miR-577 effectively promoted antitumor drug doxorubicin (DOX) across BTB to induce apoptosis of glioma cells. Collectively, the present study indicated that KHDRBS3 could regulate BTB permeability through the cDENND4C/miR-577 axis, which enhanced doxorubicin delivery across BTB. These findings may provide a novel strategy for chemotherapy of brain tumors.
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18
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Regulatory mechanisms of Robo4 and their effects on angiogenesis. Biosci Rep 2019; 39:BSR20190513. [PMID: 31160487 PMCID: PMC6620384 DOI: 10.1042/bsr20190513] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 05/30/2019] [Accepted: 05/31/2019] [Indexed: 12/13/2022] Open
Abstract
Roundabout4 (Robo4) is a transmembrane receptor that belongs to the Roundabout (Robo) family of axon guidance molecules. Robo4 is an endothelial-specific receptor that participates in endothelial cell migration, proliferation, and angiogenesis and the maintenance of vasculature homeostasis. The purpose of this review is to summarize and analyze three main mechanisms related to the expression and function of Robo4 during developmental and pathological angiogenesis. In this review, static shear stress and the binding of transcription factors such as E26 transformation-specific variant 2 (ETV2) and Slit3 induce Robo4 expression and activate Robo4 during tissue and organ development. Robo4 interacts with Slit2 or UNC5B to maintain vascular integrity, while a disturbed flow and the expression of transcription factors in inflammatory or neoplastic environments alter Robo4 expression levels, although these changes have uncertain functions. Based on the mechanisms described above, we discuss the aberrant expression of Robo4 in angiogenesis-related diseases and propose antiangiogenic therapies targeting the Robo4 signaling pathway for the treatment of ocular neovascularization lesions and tumors. Finally, although many problems related to Robo4 signaling pathways remain to be resolved, Robo4 is a promising and potentially valuable therapeutic target for treating pathological angiogenesis and developmental defects in angiogenesis.
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19
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Gould RA, Aziz H, Woods CE, Seman-Senderos MA, Sparks E, Preuss C, Wünnemann F, Bedja D, Moats CR, McClymont SA, Rose R, Sobreira N, Ling H, MacCarrick G, Kumar AA, Luyckx I, Cannaerts E, Verstraeten A, Björk HM, Lehsau AC, Jaskula-Ranga V, Lauridsen H, Shah AA, Bennett CL, Ellinor PT, Lin H, Isselbacher EM, Lino Cardenas CL, Butcher JT, Hughes GC, Lindsay ME, Mertens L, Franco-Cereceda A, Verhagen JMA, Wessels M, Mohamed SA, Eriksson P, Mital S, Van Laer L, Loeys BL, Andelfinger G, McCallion AS, Dietz HC. ROBO4 variants predispose individuals to bicuspid aortic valve and thoracic aortic aneurysm. Nat Genet 2019; 51:42-50. [PMID: 30455415 PMCID: PMC6309588 DOI: 10.1038/s41588-018-0265-y] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/26/2018] [Indexed: 12/30/2022]
Abstract
Bicuspid aortic valve (BAV) is a common congenital heart defect (population incidence, 1-2%)1-3 that frequently presents with ascending aortic aneurysm (AscAA)4. BAV/AscAA shows autosomal dominant inheritance with incomplete penetrance and male predominance. Causative gene mutations (for example, NOTCH1, SMAD6) are known for ≤1% of nonsyndromic BAV cases with and without AscAA5-8, impeding mechanistic insight and development of therapeutic strategies. Here, we report the identification of variants in ROBO4 (which encodes a factor known to contribute to endothelial performance) that segregate with disease in two families. Targeted sequencing of ROBO4 showed enrichment for rare variants in BAV/AscAA probands compared with controls. Targeted silencing of ROBO4 or mutant ROBO4 expression in endothelial cell lines results in impaired barrier function and a synthetic repertoire suggestive of endothelial-to-mesenchymal transition. This is consistent with BAV/AscAA-associated findings in patients and in animal models deficient for ROBO4. These data identify a novel endothelial etiology for this common human disease phenotype.
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Affiliation(s)
- Russell A Gould
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Howard Hughes Medical Institute, Baltimore, MD, USA
| | - Hamza Aziz
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Howard Hughes Medical Institute, Baltimore, MD, USA
| | - Courtney E Woods
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Elizabeth Sparks
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Christoph Preuss
- Cardiovascular Genetics, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine Research Centre, Université de Montréal, Montreal, Quebec, Canada
- The Jackson Laboratory, Bar Harbor, ME, USA
| | - Florian Wünnemann
- Cardiovascular Genetics, Department of Pediatrics, Centre Hospitalier Universitaire Sainte-Justine Research Centre, Université de Montréal, Montreal, Quebec, Canada
| | - Djahida Bedja
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Heart and Vascular Institute, Division of Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Cassandra R Moats
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Oregon National Primate Research Center, Portland, OR, USA
| | - Sarah A McClymont
- Center for Inherited Disease Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Rebecca Rose
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Nara Sobreira
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Hua Ling
- Center for Inherited Disease Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Gretchen MacCarrick
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Ajay Anand Kumar
- Center for Medical Genetics, Faculty of Medicine and Health Sciences, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium
| | - Ilse Luyckx
- Center for Medical Genetics, Faculty of Medicine and Health Sciences, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium
| | - Elyssa Cannaerts
- Center for Medical Genetics, Faculty of Medicine and Health Sciences, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium
| | - Aline Verstraeten
- Center for Medical Genetics, Faculty of Medicine and Health Sciences, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium
| | - Hanna M Björk
- Center for Molecular Medicine, Department of Medicine Solna, University Hospital Solna, Karolinska Institutet, Stockholm, Sweden
| | - Ann-Cathrin Lehsau
- Department of Cardiac and Thoracic Vascular Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Vinod Jaskula-Ranga
- Wilmer Eye Institute in the Department of Ophthalmology at the Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Henrik Lauridsen
- The Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | | | - Christopher L Bennett
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
- Howard Hughes Medical Institute, Baltimore, MD, USA
| | - Patrick T Ellinor
- The Broad Institute of MIT and Harvard, Cambridge, MA, USA
- Cardiovascular Research Institute, Massachussets General Hospital, Charlestown, MA, USA
| | - Honghuang Lin
- Section of Computational Biomedicine, Department of Medicine, Boston University School of Medicine, Boston, MA, USA
| | - Eric M Isselbacher
- Thoracic Aortic Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Christian Lacks Lino Cardenas
- Cardiovascular Research Center, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Jonathan T Butcher
- The Nancy E. and Peter C. Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA
| | - G Chad Hughes
- Division of Cardiovascular and Thoracic Surgery, Duke University Medical Center, Durham, NC, USA
| | - Mark E Lindsay
- Thoracic Aortic Center and Cardiovascular Genetics Program, Division of Cardiology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Luc Mertens
- Division of Cardiology, The Hospital for Sick Children, Labatt Family Heart Centre, Toronto, Ontario, Canada
| | - Anders Franco-Cereceda
- Department of Molecular Medicine and Surgery, University Hospital Solna, Karolinska Institutet, Stockholm, Sweden
| | - Judith M A Verhagen
- Department of Clinical Genetics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Marja Wessels
- Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Salah A Mohamed
- Department of Cardiac and Thoracic Vascular Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Per Eriksson
- Center for Molecular Medicine, Department of Medicine Solna, University Hospital Solna, Karolinska Institutet, Stockholm, Sweden
| | - Seema Mital
- Department of Pediatrics, Hospital for Sick Children, University of Toronto, Toronto, Ontario, Canada
| | - Lut Van Laer
- Center for Medical Genetics, Faculty of Medicine and Health Sciences, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium
| | - Bart L Loeys
- Center for Medical Genetics, Faculty of Medicine and Health Sciences, Antwerp University Hospital and University of Antwerp, Antwerp, Belgium
- Department of Human Genetics, Radboud University Medical Centre, Nijmegen, The Netherlands
| | - Gregor Andelfinger
- The Jackson Laboratory, Bar Harbor, ME, USA
- Department of Pediatrics, Université de Montréal, Montreal, Quebec, Canada
| | - Andrew S McCallion
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | - Harry C Dietz
- McKusick-Nathans Institute of Genetic Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Howard Hughes Medical Institute, Baltimore, MD, USA.
- Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Department of Pediatrics, Division of Pediatric Cardiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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20
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Pircher A, Schäfer G, Eigentler A, Pichler R, Puhr M, Steiner E, Horninger W, Gunsilius E, Klocker H, Heidegger I. Robo 4 - the double-edged sword in prostate cancer: impact on cancer cell aggressiveness and tumor vasculature. Int J Med Sci 2019; 16:115-124. [PMID: 30662335 PMCID: PMC6332478 DOI: 10.7150/ijms.28735] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 11/09/2018] [Indexed: 12/12/2022] Open
Abstract
Background: The magic roundabout receptor 4 (Robo 4) is a tumor endothelial marker expressed in the vascular network of various tumor entities. However, the role of Robo 4 in prostate cancer (PCa), the second common cause of cancer death among men in -developed countries, has not been described yet. Thus, the present study investigates for the first time the impact of Robo 4 in PCa both in the clinical setting and in vitro. Methods and Results: Immunohistochemical analyses of benign and malignant prostate tissue samples of 95 PCa patients, who underwent radical prostatectomy (RPE), revealed a significant elevated expression of Robo 4 as well as its ligand Slit 2 protein in cancerous tissue compared to benign. Moreover, increased Robo 4 expression was associated with higher Gleason score and pT stage. In advanced stage we observed a hypothesis-generating trend that high Robo 4 and Slit 2 expression is associated with delayed development of tumor recurrence compared to patients with low Robo 4 and Slit 2 expression, respectively. In contrast to so far described exclusive expression of Robo 4 in the tumor vascular network, our analyses showed that in PCa Robo 4 is not only expressed in the tumor stroma but also in cancer epithelial cells. This finding was also confirmed in vitro as PC3 PCa cells express Robo 4 on mRNA as well as protein level. Overexpression of Robo 4 in PC3 as well as in Robo 4 negative DU145 and LNCaP PCa cells was associated with a significant decrease in cell-proliferation and cell-viability. Conclusion: In summary we observed that Robo 4 plays a considerable role in PCa development as it is expressed in cancer epithelial cells as well as in the surrounding tumor stroma. Moreover, higher histological tumor grade was associated with increased Robo 4 expression; controversially patients with high Robo 4 tend to exert lower biochemical recurrence possibly reflecting a protective role of Robo 4.
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Affiliation(s)
- Andreas Pircher
- Department of Hematology and Oncology, Internal Medicine V, Medical University Innsbruck, Austria
| | - Georg Schäfer
- Department of Pathology, Medical University Innsbruck, Austria
| | | | - Renate Pichler
- Department of Pathology, Medical University Innsbruck, Austria
| | - Martin Puhr
- Department of Urology, Medical University Innsbruck, Austria
| | | | | | - Eberhard Gunsilius
- Department of Hematology and Oncology, Internal Medicine V, Medical University Innsbruck, Austria
| | - Helmut Klocker
- Department of Urology, Medical University Innsbruck, Austria
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Slit2/Robo4 signaling pathway modulates endothelial hyper-permeability in a two-event in vitro model of transfusion-related acute lung injury. Blood Cells Mol Dis 2018; 76:7-12. [PMID: 30846360 DOI: 10.1016/j.bcmd.2018.11.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2018] [Revised: 11/10/2018] [Accepted: 11/11/2018] [Indexed: 11/20/2022]
Abstract
Transfusion-related acute lung injury (TRALI) remains the leading cause of transfusion-related mortality. Endothelium semipermeable barrier function plays a critical role in the pathophysiology of transfusion-related acute lung injury (TRALI). Recently, Roundabout protein 4 (Robo4), interaction with its ligand Slit 2, was appreciated as a modulator of endothelial permeability and integrity. However, not much is known about the role of Slit2/Robo4 signaling pathway in the pathophysiology of TRALI. In this study, the TRALI model was performed by the "two-event" model of polymorphonuclear neutrophils (PMN)-mediated pulmonary microvascular endothelial cells (PMVECs) damage. We investigated the expression of Slit2/Robo4 and VE-cadherin and examined the pulmonary endothelial hyper-permeability in TRALI model. We found that the expression of Slit2/Robo4 and VE-cadherin were significantly decreased in a time-dependent manner, whereas the PMVECs permeability was gradually increased over time in TRALI model. Moreover, the treatment with Slit2-N, an active fragment of Slit2, increased the expression of Slit2/Robo4 and VE-cadherin to protect PMVECs from PMN-mediated pulmonary endothelial hyper-permeability. These results indicate that targeting Slit2/Robo4 signaling pathway may modulate the permeability as well as protect the integrity of endothelial barrier. In addition, Slit2-N appears to be a promising candidate for developing novel therapies against TRALI.
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22
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Beamish IV, Hinck L, Kennedy TE. Making Connections: Guidance Cues and Receptors at Nonneural Cell-Cell Junctions. Cold Spring Harb Perspect Biol 2018; 10:a029165. [PMID: 28847900 PMCID: PMC6211390 DOI: 10.1101/cshperspect.a029165] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The field of axon guidance was revolutionized over the past three decades by the identification of highly conserved families of guidance cues and receptors. These proteins are essential for normal neural development and function, directing cell and axon migration, neuron-glial interactions, and synapse formation and plasticity. Many of these genes are also expressed outside the nervous system in which they influence cell migration, adhesion and proliferation. Because the nervous system develops from neural epithelium, it is perhaps not surprising that these guidance cues have significant nonneural roles in governing the specialized junctional connections between cells in polarized epithelia. The following review addresses roles for ephrins, semaphorins, netrins, slits and their receptors in regulating adherens, tight, and gap junctions in nonneural epithelia and endothelia.
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Affiliation(s)
- Ian V Beamish
- Department of Neurology & Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
| | - Lindsay Hinck
- Department of Molecular, Cell and Developmental Biology, University of California, Santa Cruz, California 95064
| | - Timothy E Kennedy
- Department of Neurology & Neurosurgery, Montréal Neurological Institute, McGill University, Montréal, Quebec H3A 2B4, Canada
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23
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Girard R, Zeineddine HA, Koskimäki J, Fam MD, Cao Y, Shi C, Moore T, Lightle R, Stadnik A, Chaudagar K, Polster S, Shenkar R, Duggan R, Leclerc D, Whitehead KJ, Li DY, Awad IA. Plasma Biomarkers of Inflammation and Angiogenesis Predict Cerebral Cavernous Malformation Symptomatic Hemorrhage or Lesional Growth. Circ Res 2018; 122:1716-1721. [PMID: 29720384 DOI: 10.1161/circresaha.118.312680] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Revised: 04/25/2018] [Accepted: 04/30/2018] [Indexed: 12/14/2022]
Abstract
RATIONALE The clinical course of cerebral cavernous malformations is highly unpredictable, with few cross-sectional studies correlating proinflammatory genotypes and plasma biomarkers with prior disease severity. OBJECTIVE We hypothesize that a panel of 24 candidate plasma biomarkers, with a reported role in the physiopathology of cerebral cavernous malformations, may predict subsequent clinically relevant disease activity. METHODS AND RESULTS Plasma biomarkers were assessed in nonfasting peripheral venous blood collected from consecutive cerebral cavernous malformation subjects followed for 1 year after initial sample collection. A first cohort (N=49) was used to define the best model of biomarker level combinations to predict a subsequent symptomatic lesional hemorrhagic expansion within a year after the blood sample. We generated the receiver operating characteristic curves and area under the curve for each biomarker individually and each weighted linear combination of relevant biomarkers. The best model to predict lesional activity was selected as that minimizing the Akaike information criterion. In this cohort, 11 subjects experienced symptomatic lesional hemorrhagic expansion (5 bleeds and 10 lesional growths) within a year after the blood draw. Subjects had lower soluble CD14 (cluster of differentiation 14; P=0.05), IL (interleukin)-6 (P=0.04), and VEGF (vascular endothelial growth factor; P=0.0003) levels along with higher plasma levels of IL-1β (P=0.008) and soluble ROBO4 (roundabout guidance receptor 4; P=0.03). Among the 31 weighted linear combinations of these 5 biomarkers, the best model (with the lowest Akaike information criterion value, 25.3) was the weighted linear combination including soluble CD14, IL-1β, VEGF, and soluble ROBO4, predicting a symptomatic hemorrhagic expansion with a sensitivity of 86% and specificity of 88% (area under the curve, 0.90; P<0.0001). We then validated our best model in the second sequential independent cohort (N=28). CONCLUSIONS This is the first study reporting a predictive association between plasma biomarkers and subsequent cerebral cavernous malformation disease clinical activity. This may be applied in clinical prognostication and stratification of cases in clinical trials.
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Affiliation(s)
- Romuald Girard
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Hussein A Zeineddine
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Janne Koskimäki
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Maged D Fam
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Ying Cao
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Changbin Shi
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Thomas Moore
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Rhonda Lightle
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Agnieszka Stadnik
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Kiranj Chaudagar
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Sean Polster
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Robert Shenkar
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
| | - Ryan Duggan
- Cytometry and Antibody Technology, Biological Sciences Division, Office of Shared Research Facilities, University of Chicago, IL (R.D., D.L.)
| | - David Leclerc
- Cytometry and Antibody Technology, Biological Sciences Division, Office of Shared Research Facilities, University of Chicago, IL (R.D., D.L.)
| | - Kevin J Whitehead
- Division of Cardiology, Department of Medicine (K.J.W., D.Y.L.), University of Utah School of Medicine, Salt Lake City
| | - Dean Y Li
- Division of Cardiology, Department of Medicine (K.J.W., D.Y.L.), University of Utah School of Medicine, Salt Lake City
| | - Issam A Awad
- From the Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, IL (R.G., H.A.Z., J.K., M.D.F., Y.C., C.S., T.M., R.L., A.S., K.C., S.P., R.S., I.A.A.)
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24
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Chen L, Xue Y, Zheng J, Liu X, Liu J, Chen J, Li Z, Xi Z, Teng H, Wang P, Liu L, Liu Y. MiR-429 Regulated by Endothelial Monocyte Activating Polypeptide-II (EMAP-II) Influences Blood-Tumor Barrier Permeability by Inhibiting the Expressions of ZO-1, Occludin and Claudin-5. Front Mol Neurosci 2018; 11:35. [PMID: 29467620 PMCID: PMC5808301 DOI: 10.3389/fnmol.2018.00035] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 01/25/2018] [Indexed: 11/17/2022] Open
Abstract
The blood-tumor barrier (BTB) hinders delivery of chemotherapeutic drugs to tumors in the brain; previous studies have shown that the BTB can be selectively opened by endothelial monocyte activating polypeptide-II (EMAP-II), but the specific mechanism involved remains elusive. In this study, we found that microRNA-429 (miR-429) expression in glioma vascular endothelial cells (GECs) was far lower than in human brain microvascular endothelial cells (ECs). miR-429 had lower expression in GECs and glioma tissues compared to ECs or normal tissues of the brain. Furthermore, miR-429 had lower expression in high grade glioma (HGG) than in low grade glioma (LGG). In in vitro BTB models, we also found that EMAP-II significantly increased BTB permeability, decreased expression of ZO-1, occludin and claudin-5 in GECs, in a time- and dose-dependent manner. EMAP-II greatly increased miR-429 expression in GECs of the BTB models in vitro. Overexpression of miR-429 in GECs significantly decreased the transepithelial electric resistance (TEER) values in BTB models, and led to enhanced horseradish peroxidase (HRP) flux. Overexpression of miR-429 in GECs significantly decreased the expression of tight junction (TJ)-associated proteins (ZO-1, occludin and claudin-5), and decreased the distribution continuity. Silencing of miR-429 in GECs increased the expression of TJ-associated proteins and the distribution continuity. The dual-luciferase reporter assay revealed that ZO-1 and occludin were target genes of miR-429, and we demonstrated that miR-429 overexpression markedly down-regulated protein expression of p70S6K, as well as its phosphorylation levels. The dual-luciferase reporter assay also showed that p70S6K was a target gene of miR-429; miR-429 overexpression down-regulated expression and phosphorylation levels of p70S6K, and also decreased phosphorylation levels of S6 and increased BTB permeability. Conversely, silencing of miR-429 increased the expression and phosphorylation levels of p70S6K, and increased phosphorylation levels of S6, while decreasing BTB permeability. In conclusion, the results indicated that EMAP-II caused an increase in miR-429 expression that directly targeted TJ-associated proteins, which were negatively regulated; on the other hand, miR-429 down-regulated the expression of TJ-associated proteins by targeting p70S6K, also negatively regulated. As a result, the BTB permeability increased.
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Affiliation(s)
- Liangyu Chen
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Jian Zheng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Xiaobai Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Jing Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Jiajia Chen
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Zhuo Xi
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Hao Teng
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, China Medical University, Shenyang, China.,Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical University, Shenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China.,Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang, China.,Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang, China
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25
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Phan DTT, Bender RHF, Andrejecsk JW, Sobrino A, Hachey SJ, George SC, Hughes CCW. Blood-brain barrier-on-a-chip: Microphysiological systems that capture the complexity of the blood-central nervous system interface. Exp Biol Med (Maywood) 2017; 242:1669-1678. [PMID: 28195514 PMCID: PMC5786363 DOI: 10.1177/1535370217694100] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The blood-brain barrier is a dynamic and highly organized structure that strictly regulates the molecules allowed to cross the brain vasculature into the central nervous system. The blood-brain barrier pathology has been associated with a number of central nervous system diseases, including vascular malformations, stroke/vascular dementia, Alzheimer's disease, multiple sclerosis, and various neurological tumors including glioblastoma multiforme. There is a compelling need for representative models of this critical interface. Current research relies heavily on animal models (mostly mice) or on two-dimensional (2D) in vitro models, neither of which fully capture the complexities of the human blood-brain barrier. Physiological differences between humans and mice make translation to the clinic problematic, while monolayer cultures cannot capture the inherently three-dimensional (3D) nature of the blood-brain barrier, which includes close association of the abluminal side of the endothelium with astrocyte foot-processes and pericytes. Here we discuss the central nervous system diseases associated with blood-brain barrier pathology, recent advances in the development of novel 3D blood-brain barrier -on-a-chip systems that better mimic the physiological complexity and structure of human blood-brain barrier, and provide an outlook on how these blood-brain barrier-on-a-chip systems can be used for central nervous system disease modeling. Impact statement The field of microphysiological systems is rapidly evolving as new technologies are introduced and our understanding of organ physiology develops. In this review, we focus on Blood-Brain Barrier (BBB) models, with a particular emphasis on how they relate to neurological disorders such as Alzheimer's disease, multiple sclerosis, stroke, cancer, and vascular malformations. We emphasize the importance of capturing the three-dimensional nature of the brain and the unique architecture of the BBB - something that until recently had not been well modeled by in vitro systems. Our hope is that this review will provide a launch pad for new ideas and methodologies that can provide us with truly physiological BBB models capable of yielding new insights into the function of this critical interface.
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Affiliation(s)
- Duc TT Phan
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - R Hugh F Bender
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Jillian W Andrejecsk
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Agua Sobrino
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Stephanie J Hachey
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
| | - Steven C George
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Christopher CW Hughes
- Department of Molecular Biology & Biochemistry, University of California, Irvine, Irvine, CA 92697, USA
- Department of Biomedical Engineering, University of California, Irvine, Irvine, CA 92697, USA
- The Edwards Lifesciences Center for Advanced Cardiovascular Technology, University of California, Irvine, Irvine, CA 92697, USA
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26
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Guo J, Cai H, Zheng J, Liu X, Liu Y, Ma J, Que Z, Gong W, Gao Y, Tao W, Xue Y. Long non-coding RNA NEAT1 regulates permeability of the blood-tumor barrier via miR-181d-5p-mediated expression changes in ZO-1, occludin, and claudin-5. Biochim Biophys Acta Mol Basis Dis 2017; 1863:2240-2254. [DOI: 10.1016/j.bbadis.2017.02.005] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2016] [Revised: 01/17/2017] [Accepted: 02/02/2017] [Indexed: 01/01/2023]
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27
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Zhang Y, Han Y, Zhao Y, Lv Y, Hu Y, Tan Y, Bi X, Yu B, Kou J. DT-13 Ameliorates TNF-α-Induced Vascular Endothelial Hyperpermeability via Non-Muscle Myosin IIA and the Src/PI3K/Akt Signaling Pathway. Front Immunol 2017; 8:925. [PMID: 28855900 PMCID: PMC5557769 DOI: 10.3389/fimmu.2017.00925] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Accepted: 07/20/2017] [Indexed: 12/29/2022] Open
Abstract
DT-13(25(R,S)-ruscogenin-1-O-[β-d-glucopyranosyl-(1→2)][β-d-xylopyranosyl-(1→3)]-β-d-fucopyranoside) has been identified as an important factor in TNF-α-induced vascular inflammation. However, the effect of DT-13 on TNF-α-induced endothelial permeability and the potential molecular mechanisms remain unclear. Hence, this study was undertaken to elucidate the protective effect of DT-13 on TNF-α-induced endothelial permeability and the underlying mechanisms in vivo and in vitro. The in vivo results showed that DT-13 could ameliorate endothelial permeability in mustard oil-induced plasma leakage in the skin and modulate ZO-1 organization. In addition, the in vitro results showed that pretreatment with DT-13 could increase the transendothelial electrical resistance value and decrease the sodium fluorescein permeability coefficient. Moreover, DT-13 altered the mRNA and protein levels of ZO-1 as determined by real-time PCR, Western blotting, and immunofluorescence analyses. DT-13 treatment decreased the phosphorylations of Src, PI3K, and Akt in TNF-α-treated human umbilical vein endothelial cells (HUVECs). Further analyses with PP2 (10 µM, inhibitor of Src) indicated that DT-13 modulated endothelial permeability in TNF-α-induced HUVECs in an Src-dependent manner. LY294002 (10 µM, PI3K inhibitor) also had the same effect on DT-13 but did not affect phosphorylation of Src. Following decreased expression of non-muscle myosin IIA (NMIIA), the effect of DT-13 on the phosphorylations of Src, PI3K, and Akt was abolished. This study provides pharmacological evidence showing that DT-13 significantly ameliorated the TNF-α-induced vascular endothelial hyperpermeability through modulation of the Src/PI3K/Akt pathway and NMIIA, which play an important role in this process.
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Affiliation(s)
- Yuanyuan Zhang
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Yuwei Han
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Yazheng Zhao
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Yanni Lv
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Yang Hu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Yisha Tan
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Xueyuan Bi
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Boyang Yu
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
| | - Junping Kou
- State Key Laboratory of Natural Products, Jiangsu Key Laboratory of TCM Evaluation and Translational Research, Department of Complex Prescription of TCM, China Pharmaceutical University, Nanjing, China
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28
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Rubio-Araiz A, Porcu F, Pérez-Hernández M, García-Gutiérrez MS, Aracil-Fernández MA, Gutierrez-López MD, Guerri C, Manzanares J, O'Shea E, Colado MI. Disruption of blood-brain barrier integrity in postmortem alcoholic brain: preclinical evidence of TLR4 involvement from a binge-like drinking model. Addict Biol 2017; 22:1103-1116. [PMID: 26949123 DOI: 10.1111/adb.12376] [Citation(s) in RCA: 86] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2015] [Revised: 01/12/2016] [Accepted: 01/13/2016] [Indexed: 01/16/2023]
Abstract
Inflammatory cytokines and reactive oxygen species are reported to be involved in blood-brain barrier (BBB) disruption. Because there is evidence that ethanol (EtOH) induces release of free radicals, cytokines and inflammatory mediators we examined BBB integrity and matrix metalloproteinase (MMP) activity in postmortem human alcoholic brain and investigated the role of TLR4 signaling in BBB permeability in TLR4-knockout mice under a binge-like EtOH drinking protocol. Immunohistochemical studies showed reduced immunoreactivity of the basal lamina protein, collagen-IV and of the tight junction protein, claudin-5 in dorsolateral prefrontal cortex of alcoholics. There was also increased MMP-9 activity and expression of phosphorylated ERK1/2 and p-38. Greater number of CD45+ IR cells were observed associated with an enhanced neuroinflammatory response reflected by increased GFAP and Iba-1 immunostaining. To further explore effects of high EtOH consumption on BBB integrity we studied TLR4-knockout mice exposed to the drinking in the dark paradigm. Repetitive EtOH exposure in wild-type mice decreased hippocampal expression of laminin and collagen-IV and increased IgG immunoreactivity, indicating IgG extravasation. Western blot analysis also revealed increased MyD88 and p-ERK1/2 levels. None of these changes was observed in TLR4-knockout mice. Collectively, these findings indicate that chronic EtOH increases degradation of tight junctions and extracellular matrix in postmortem human brain and induces a neuroinflammatory response associated with activation of ERK1/2 and p-38 and greater MMP-9 activity. The EtOH-induced effects on BBB impairment are not evident in the hippocampus of TLR4-knockout mice, suggesting the involvement of TLR4 signaling in the underlying mechanism leading to BBB disruption in mice.
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Affiliation(s)
- Ana Rubio-Araiz
- Departamento de Farmacología, Facultad de Medicina; Universidad Complutense, Instituto de Investigación Sanitaria Hospital 12 de Octubre; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - Francesca Porcu
- Departamento de Farmacología, Facultad de Medicina; Universidad Complutense, Instituto de Investigación Sanitaria Hospital 12 de Octubre; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - Mercedes Pérez-Hernández
- Departamento de Farmacología, Facultad de Medicina; Universidad Complutense, Instituto de Investigación Sanitaria Hospital 12 de Octubre; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - Mª Salud García-Gutiérrez
- Instituto de Neurociencias, Campus de San Juan; Universidad Miguel Hernández-CSIC; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - María Auxiliadora Aracil-Fernández
- Instituto de Neurociencias, Campus de San Juan; Universidad Miguel Hernández-CSIC; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - María Dolores Gutierrez-López
- Departamento de Farmacología, Facultad de Medicina; Universidad Complutense, Instituto de Investigación Sanitaria Hospital 12 de Octubre; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - Consuelo Guerri
- Departamento de Patología Celular; Centro de Investigación Príncipe Felipe; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - Jorge Manzanares
- Instituto de Neurociencias, Campus de San Juan; Universidad Miguel Hernández-CSIC; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - Esther O'Shea
- Departamento de Farmacología, Facultad de Medicina; Universidad Complutense, Instituto de Investigación Sanitaria Hospital 12 de Octubre; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
| | - María Isabel Colado
- Departamento de Farmacología, Facultad de Medicina; Universidad Complutense, Instituto de Investigación Sanitaria Hospital 12 de Octubre; Spain
- Red de Trastornos Adictivos del Instituto de Salud Carlos III; Spain
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29
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Sa L, Li Y, Zhao L, Liu Y, Wang P, Liu L, Li Z, Ma J, Cai H, Xue Y. The Role of HOTAIR/miR-148b-3p/USF1 on Regulating the Permeability of BTB. Front Mol Neurosci 2017; 10:194. [PMID: 28701916 PMCID: PMC5487514 DOI: 10.3389/fnmol.2017.00194] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Accepted: 06/01/2017] [Indexed: 12/19/2022] Open
Abstract
Homeobox transcript antisense intergenic RNA (HOTAIR), as a long non-coding RNA (lncRNA), has been considered to play critical roles in the biological properties of various tumors. The purposes of this study were to investigate the role and possible molecular mechanisms of HOTAIR in regulating the permeability of blood tumor barrier (BTB) in vitro. Our present study elucidated that the expressions of HOTAIR and upstream stimulatory factor 1 (USF1) was up-regulated, but miR-148b-3p was down-regulated in glioma microvascular endothelial cells (GECs). Knockdown of HOTAIR could increase the permeability of BTB as well as down-regulated the expressions of tight junction related proteins ZO-1, occludin, claudin-5, but up-regulated miR-148b-3p expressions in GECs. Meanwhile, dual-luciferase reporter assays demonstrated that HOTAIR was a target RNA of miR-148b-3p. Furthermore, overexpression of miR-148b-3p increased the permeability of BTB by down-regulating the expressions of tight junction related proteins and USF1 in GECs, and vice versa. And further result revealed USF1 was a target of miR-148b-3p. Silence of USF1 increased the permeability of BTB duo to their interaction with the promoters of ZO-1, occludin, and claudin-5 in GECs. Taken together, our finding indicated that knockdown of HOTAIR increased BTB permeability via binding to miR-148b-3p, which further reducing tight junction related proteins in GECs by targeting USF1. Thus, HOTAIR will attract more attention since it can serve as a potential target of drug delivery across BTB and may provide novel strategies for glioma treatment.
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Affiliation(s)
- Libo Sa
- Department of Neurobiology, College of Basic Medicine, China Medical UniversityShenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical UniversityShenyang, China
| | - Yan Li
- No. 1 English Department, School of Fundamental Sciences, China Medical UniversityShenyang, China
| | - Lini Zhao
- Department of Neurobiology, College of Basic Medicine, China Medical UniversityShenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical UniversityShenyang, China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical UniversityShenyang, China.,Liaoning Research Center for Translational Medicine in Nervous System DiseaseShenyang, China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical UniversityShenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical UniversityShenyang, China
| | - Libo Liu
- Department of Neurobiology, College of Basic Medicine, China Medical UniversityShenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical UniversityShenyang, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical UniversityShenyang, China.,Liaoning Research Center for Translational Medicine in Nervous System DiseaseShenyang, China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical UniversityShenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical UniversityShenyang, China
| | - Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical UniversityShenyang, China.,Liaoning Research Center for Translational Medicine in Nervous System DiseaseShenyang, China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical UniversityShenyang, China.,Key Laboratory of Cell Biology, Ministry of Public Health of China, and Key Laboratory of Medical Cell Biology, Ministry of Education of China, China Medical UniversityShenyang, China
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30
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Recombinant Slit2 Reduces Surgical Brain Injury Induced Blood Brain Barrier Disruption via Robo4 Dependent Rac1 Activation in a Rodent Model. Sci Rep 2017; 7:746. [PMID: 28389649 PMCID: PMC5429690 DOI: 10.1038/s41598-017-00827-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 03/14/2017] [Indexed: 12/25/2022] Open
Abstract
Brain tissue surrounding surgical resection site can be injured inadvertently due to procedures such as incision, retractor stretch, and electrocauterization when performing neurosurgical procedures, which is termed as surgical brain injury (SBI). Blood brain barrier (BBB) disruption due to SBI can exacerbate brain edema in the post-operative period. Previous studies showed that Slit2 exhibited vascular anti-permeability effects outside the brain. However, BBB protective effects of Slit2 following SBI has not been evaluated. The objective of this study was to evaluate whether recombinant Slit2 via its receptor roundabout4 (Robo4) and the adaptor protein, Paxillin were involved in reducing BBB permeability in SBI rat model. Our results showed that endogenous Slit2 increased in the surrounding peri-resection brain tissue post-SBI, Robo4 remained unchanged and Paxillin showed a decreasing trend. Recombinant Slit2 administered 1 h before injury increased BBB junction proteins, reduced BBB permeability, and decreased neurodeficits 24 h post-SBI. Furthermore, recombinant Slit2 administration increased Rac1 activity which was reversed by Robo4 and Paxillin siRNA. Our findings suggest that recombinant Slit2 reduced SBI-induced BBB permeability, possibly by stabilizing BBB tight junction via Robo4 mediated Rac1 activation. Slit2 may be beneficial for BBB protection during elective neurosurgeries.
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31
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Abdelsaid M, Coucha M, Hafez S, Yasir A, Johnson MH, Ergul A. Enhanced VEGF signalling mediates cerebral neovascularisation via downregulation of guidance protein ROBO4 in a rat model of diabetes. Diabetologia 2017; 60:740-750. [PMID: 28116460 PMCID: PMC5342922 DOI: 10.1007/s00125-017-4214-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Accepted: 12/31/2016] [Indexed: 01/06/2023]
Abstract
AIMS/HYPOTHESIS Diabetes promotes cerebral neovascularisation via increased vascular endothelial growth factor (VEGF) angiogenic signalling. Roundabout-4 (ROBO4) protein is an endogenous inhibitor of VEGF signalling that stabilises the vasculature. Yet, how diabetes affects ROBO4 function remains unknown. We hypothesised that increased VEGF signalling in diabetes decreases ROBO4 expression and function via binding of ROBO4 with VEGF-activated β3 integrin and that restoration of ROBO4 expression prevents/repairs cerebral neovascularisation in diabetes. METHODS ROBO4 protein expression in a rat model of type 2 diabetes (Goto-Kakizaki [GK] rats) was examined by western blotting and immunohistochemistry. ROBO4 was locally overexpressed in the brain and in primary brain microvascular endothelial cells (BMVECs). GK rats were treated with SKLB1002, a selective VEGF receptor-2 (VEGFR-2) antagonist. Cerebrovascular neovascularisation indices were determined using a FITC vascular space-filling model. Immunoprecipitation was used to determine ROBO4-β3 integrin interaction. RESULTS ROBO4 expression was significantly decreased in the cerebral vasculature as well as in BMVECs in diabetes (p < 0.05). Silencing Robo4 increased the angiogenic properties of control BMVECs (p < 0.05). In vivo and in vitro overexpression of ROBO4 inhibited VEGF-induced angiogenic signalling and increased vessel maturation. Inhibition of VEGF signalling using SKLB1002 increased ROBO4 expression (p < 0.05) and reduced neovascularisation indices (p < 0.05). Furthermore, SKLB1002 significantly decreased ROBO4-β3 integrin interaction in diabetes (p < 0.05). CONCLUSIONS/INTERPRETATION Our study identifies the restoration of ROBO4 and inhibition of VEGF signalling as treatment strategies for diabetes-induced cerebral neovascularisation.
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Affiliation(s)
- Mohammed Abdelsaid
- Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA.
- Department of Physiology, Augusta University, 1120 15th Street CA-3135, Augusta, GA, 30912, USA.
| | - Maha Coucha
- Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA
- Department of Physiology, Augusta University, 1120 15th Street CA-3135, Augusta, GA, 30912, USA
| | - Sherif Hafez
- Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA
- Department of Physiology, Augusta University, 1120 15th Street CA-3135, Augusta, GA, 30912, USA
| | - Abdul Yasir
- Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA
- Department of Physiology, Augusta University, 1120 15th Street CA-3135, Augusta, GA, 30912, USA
| | | | - Adviye Ergul
- Charlie Norwood Veterans Administration Medical Center, Augusta, GA, USA
- Department of Physiology, Augusta University, 1120 15th Street CA-3135, Augusta, GA, 30912, USA
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The Robo4 cytoplasmic domain is dispensable for vascular permeability and neovascularization. Nat Commun 2016; 7:13517. [PMID: 27882935 PMCID: PMC5123080 DOI: 10.1038/ncomms13517] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 10/11/2016] [Indexed: 12/18/2022] Open
Abstract
Vascular permeability and neovascularization are implicated in many diseases including retinopathies and diabetic wound healing. Robo4 is an endothelial-specific transmembrane receptor that stabilizes the vasculature, as shown in Robo4−/− mice that develop hyperpermeability, but how Robo4 signals remained unclear. Here we show that Robo4 deletion enhances permeability and revascularization in oxygen-induced retinopathy (OIR) and accelerates cutaneous wound healing. To determine Robo4 signalling pathways, we generated transgenic mice expressing a truncated Robo4 lacking the cytoplasmic domain (Robo4ΔCD). Robo4ΔCD expression is sufficient to prevent permeability, and inhibits OIR revascularization and wound healing in Robo4−/− mice. Mechanistically, Robo4 does not affect Slit2 signalling, but Robo4 and Robo4ΔCD counteract Vegfr2-Y949 (Y951 in human VEGFR2) phosphorylation by signalling through the endothelial UNC5B receptor. We conclude that Robo4 inhibits angiogenesis and vessel permeability independently of its cytoplasmic domain, while activating VEGFR2-Y951 via ROBO4 inhibition might accelerate tissue revascularization in retinopathy of prematurity and in diabetic patients. Robo4 is a transmembrane protein that regulates vascular permeability. Zhang et al. now reveal the mechanism of Robo4 action and show that Robo4 and UncB are required for VEGF-mediated regulation of vascular barrier by suppressing VEGF-induced phosphorylation of its receptor Vegfr2 on Y949.
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Modulating the paracellular pathway at the blood-brain barrier: current and future approaches for drug delivery to the CNS. DRUG DISCOVERY TODAY. TECHNOLOGIES 2016; 20:35-39. [PMID: 27986221 DOI: 10.1016/j.ddtec.2016.07.008] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/13/2016] [Indexed: 11/20/2022]
Abstract
The blood-brain barrier (BBB) is the tightly regulated point of entry by which any neuro-targeting therapy must pass through. BBB modulation is a means to loosen the size exclusion properties of the barrier by temporarily interfering with the formation of intercellular tight junction (TJ) or adheren junction (AJ) complexes, allowing for diffusion of small molecule therapeutics from blood to brain. Several technologies, such as RNAi, peptidomimetics, high frequency ultrasound and nanoparticles, have been developed and refined over the years, paving the way for barrier modulation to become an effective part of conventional central nervous system therapies. Here, we review the current and future approaches aimed at facilitating enhanced drug delivery to the central nervous system (CNS).
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Frosina G. Advances in drug delivery to high grade gliomas. Brain Pathol 2016; 26:689-700. [PMID: 27488680 DOI: 10.1111/bpa.12423] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Accepted: 07/19/2016] [Indexed: 12/15/2022] Open
Abstract
If cancer is hard to be treated, brain cancer is even more, caused by the inability of many effective drugs given systemically to cross the blood brain and blood tumor barriers and reach adequate concentrations at the tumor sites. Effective delivery of drugs to brain cancer tissues is thus a necessary, albeit not sufficient, condition to effectively target the disease. In order to analyze the current status of research on drug delivery to high grade gliomas (HGG-WHO grades III and IV), the most frequent and aggressive brain cancers, a literature search was conducted in PubMed using the terms: "drug delivery and brain tumor" over the publication year 2015. Currently explored drug delivery techniques for HGG include the convection and permeabilization-enhanced deliveries, drug-releasing depots and Ommaya reservoirs. The efficacy/safety ratio widely varies among these techniques and the success of current efforts to increase this ratio widely varies as well.
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Affiliation(s)
- Guido Frosina
- Mutagenesis Unit, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genova, Italy
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35
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MicroRNA-107 prevents amyloid-beta induced blood-brain barrier disruption and endothelial cell dysfunction by targeting Endophilin-1. Exp Cell Res 2016; 343:248-257. [DOI: 10.1016/j.yexcr.2016.03.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 03/25/2016] [Accepted: 03/29/2016] [Indexed: 11/21/2022]
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36
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Wagner SC, Ichim TE, Ma H, Szymanski J, Perez JA, Lopez J, Bogin V, Patel AN, Marincola FM, Kesari S. Cancer anti-angiogenesis vaccines: Is the tumor vasculature antigenically unique? J Transl Med 2015; 13:340. [PMID: 26510973 PMCID: PMC4625691 DOI: 10.1186/s12967-015-0688-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2015] [Accepted: 10/03/2015] [Indexed: 12/19/2022] Open
Abstract
Angiogenesis is essential for the growth and metastasis of solid tumors. The tumor endothelium exists in a state of chronic activation and proliferation, fueled by the tumor milieu where angiogenic mediators are aberrantly over-expressed. Uncontrolled tumor growth, immune evasion, and therapeutic resistance are all driven by the dysregulated and constitutive angiogenesis occurring in the vasculature. Accordingly, great efforts have been dedicated toward identifying molecular signatures of this pathological angiogenesis in order to devise selective tumor endothelium targeting therapies while minimizing potential autoimmunity against physiologically normal endothelium. Vaccination with angiogenic antigens to generate cellular and/or humoral immunity against the tumor endothelium has proven to be a promising strategy for inhibiting or normalizing tumor angiogenesis and reducing cancer growth. Here we review tumor endothelium vaccines developed to date including active immunization strategies using specific tumor endothelium-associated antigens and whole endothelial cell-based vaccines designed to elicit immune responses against diverse target antigens. Among the novel therapeutic options, we describe a placenta-derived endothelial cell vaccine, ValloVax™, a polyvalent vaccine that is antigenically similar to proliferating tumor endothelium and is supported by pre-clinical studies to be safe and efficacious against several tumor types.
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Affiliation(s)
- Samuel C Wagner
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Thomas E Ichim
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Hong Ma
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Julia Szymanski
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | | | - Javier Lopez
- Pan Am Cancer Treatment Center, Tijuana, Mexico.
| | - Vladimir Bogin
- Batu Biologics Inc., Towne Center Drive, San Diego, CA, 92121, USA.
| | - Amit N Patel
- Department of Surgery, University of Utah, Salt Lake City, UT, USA.
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37
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Expression of the Robo4 receptor in endothelial cells is regulated by two AP-1 protein complexes. Biochem Biophys Res Commun 2015; 467:987-91. [PMID: 26459591 DOI: 10.1016/j.bbrc.2015.10.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2015] [Accepted: 10/06/2015] [Indexed: 01/29/2023]
Abstract
Roundabout4 (Robo4) is an endothelial cell-specific gene that plays an important role in endothelial cell stability. We previously identified a 3-kb Robo4 promoter and demonstrated the importance of its proximal region in regulating Robo4 gene expression. To investigate the role of the upstream promoter in Robo4 gene regulation, we searched evolutionarily conserved promoter regions by phylogenetic footprinting and identified three conserved promoter regions. The most upstream region included a conserved AP-1 binding motif at position -2875. A mutation in the AP-1 motif significantly decreased Robo4 promoter activity in a transient reporter assay. An electrophoretic mobility shift assay and a chromatin immunoprecipitation assay demonstrated binding of a c-Jun/c-Jun complex and a c-Jun/Fra-1 complex to the AP-1 motif. Knockdown experiments using siRNA revealed that both c-Jun/c-Jun and c-Jun/Fra-1 complexes regulate Robo4 gene expression, and that the c-Jun/c-Jun complex is essential for maximum promoter activation. Collectively, these results indicate that AP-1 complexes regulate Robo4 gene expression in endothelial cells.
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38
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Zhao YY, Zhao LN, Wang P, Miao YS, Liu YH, Wang ZH, Ma J, Li Z, Li ZQ, Xue YX. Overexpression of miR-18a negatively regulates myocyte enhancer factor 2D to increase the permeability of the blood-tumor barrier via Krüppel-like factor 4-mediated downregulation of zonula occluden-1, claudin-5, and occludin. J Neurosci Res 2015; 93:1891-902. [PMID: 26356851 DOI: 10.1002/jnr.23628] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 07/28/2015] [Accepted: 07/28/2015] [Indexed: 01/23/2023]
Abstract
miR-18a represses angiogenesis and tumor evasion by weakening vascular endothelial growth factor and transforming growth factor-β signaling to prolong the survival of glioma patients, although it is thought to be an oncogene. This study investigates the potential effects of miR-18a on the permeability of the blood-tumor barrier (BTB) and its possible molecular mechanisms. An in vitro BTB model was successfully established. The endogenous expression of miR-18a in glioma vascular endothelial cells (GECs) was significantly lower than that in normal vascular ECs, and the overexpression of miR-18a significantly increased the permeability of the BTB as well as downregulating the mRNA and protein expressions of tight junction-related proteins zonula occluden-1 (ZO-1), claudin-5, and occludin in GECs. Dual luciferase reporter assays revealed that miR-18a bound to the 3'-untranslated region (3'UTR) of myocyte enhancer factor 2D (MEF2D). The overexpression of both miR-18a and MEF2D with the 3'UTR significantly weakened the effect caused by miR-18a of decreasing the mRNA and protein expressions of ZO-1, claudin-5 and occludin and of increasing the permeability of the BTB. Chromatin immunoprecipitation showed that MEF2D could directly bind to KLF4 promoter. This study shows that miR-18a targets and negatively regulates MEF2D, which further regulates tight junction-related proteins ZO-1, claudin-5, and occludin through transactivation of KLF4 and, finally, changes the permeability of the BTB. MiR-18a should garner growing attention because it might serve as a potential target in opening the BTB and providing a new strategy for the treatment of gliomas.
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Affiliation(s)
- Ying-Yu Zhao
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
| | - Li-Ni Zhao
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
| | - Yin-Sha Miao
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
| | - Yun-Hui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhen-Hua Wang
- Department of Physiology, College of Basic Medicine, China Medical University, Shenyang, China
| | - Jun Ma
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, China
| | - Zhi-Qing Li
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
| | - Yi-Xue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, China.,Institute of Pathology and Pathophysiology, China Medical University, Shenyang, China
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Cai H, Xue Y, Wang P, Wang Z, Li Z, Hu Y, Li Z, Shang X, Liu Y. The long noncoding RNA TUG1 regulates blood-tumor barrier permeability by targeting miR-144. Oncotarget 2015; 6:19759-79. [PMID: 26078353 PMCID: PMC4637319 DOI: 10.18632/oncotarget.4331] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Accepted: 05/25/2015] [Indexed: 01/16/2023] Open
Abstract
Blood-tumor barrier (BTB) limits the delivery of chemotherapeutic agent to brain tumor tissues. Long non-coding RNAs (lncRNAs) have been shown to play critical regulatory roles in various biologic processes of tumors. However, the role of lncRNAs in BTB permeability is unclear. LncRNA TUG1 (taurine upregulated gene 1) was highly expressed in glioma vascular endothelial cells from glioma tissues. It also upregulated in glioma co-cultured endothelial cells (GEC) from BTB model in vitro. Knockdown of TUG1 increased BTB permeability, and meanwhile down-regulated the expression of the tight junction proteins ZO-1, occludin, and claudin-5. Both bioinformatics and luciferase reporter assays demonstrated that TUG1 influenced BTB permeability via binding to miR-144. Furthermore, Knockdown of TUG1 also down-regulated Heat shock transcription factor 2 (HSF2), a transcription factor of the heat shock transcription factor family, which was defined as a direct and functional downstream target of miR-144. HSF2 up-regulated the promoter activities and interacted with the promoters of ZO-1, occludin, and claudin-5 in GECs. In conclusion, our results indicate that knockdown of TUG1 increased BTB permeability via binding to miR-144 and then reducing EC tight junction protein expression by targeting HSF2. Thus, TUG1 may represent a useful future therapeutic target for enhancing BTB permeability.
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Affiliation(s)
- Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yixue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Zhenhua Wang
- Department of Physiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
| | - Zhen Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yi Hu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
| | - Zhiqing Li
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang, People's Republic of China
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang, People's Republic of China
| | - Xiuli Shang
- Department of Neurology, The First Affiliated Hospital of China Medical University, Shenyang, People's Republic of China
| | - Yunhui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang, People's Republic of China
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