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Fiehn LA, Kunisch E, Saur M, Arango-Ospina M, Merle C, Hagmann S, Stiller A, Hupa L, Kaňková H, Galusková D, Renkawitz T, Boccaccini AR, Westhauser F. A comparative in vitro and in vivo analysis of the impact of copper substitution on the cytocompatibility, osteogenic, and angiogenic properties of a borosilicate bioactive glass. J Biomed Mater Res A 2024; 112:1740-1759. [PMID: 38623001 DOI: 10.1002/jbm.a.37721] [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: 01/21/2024] [Revised: 03/10/2024] [Accepted: 04/01/2024] [Indexed: 04/17/2024]
Abstract
The 0106-B1-bioactive glass (BG) composition (in wt %: 37.5 SiO2, 22.6 CaO, 5.9 Na2O, 4.0 P2O5, 12.0 K2O, 5.5 MgO, and 12.5 B2O3) has demonstrated favorable processing properties and promising bone regeneration potential. The present study aimed to evaluate the biological effects of the incorporation of highly pro-angiogenic copper (Cu) in 0106-B1-BG in vitro using human bone marrow-derived mesenchymal stromal cells (BMSCs) as well as its in vivo potential for bone regeneration. CuO was added to 0106-B1-BG in exchange for CaO, resulting in Cu-doped BG compositions containing 1.0, 2.5 and 5.0 wt % CuO (composition in wt %: 37.5 SiO2, 21.6/ 20.1/17.6 CaO, 5.9 Na2O, 4.0 P2O5, 12.0 K2O, 5.5 MgO, 12.5 B2O3, and 1.0/ 2.5/ 5.0 CuO). In vitro, the BGs' impact on the viability, proliferation, and growth patterns of BMSCs was evaluated. Analyses of protein secretion, matrix formation, and gene expression were used for the assessment of the BGs' influence on BMSCs regarding osteogenic differentiation and angiogenic stimulation. The presence of Cu improved cytocompatibility, osteogenic differentiation, and angiogenic response when compared with unmodified 0106-B1-BG in vitro. In vivo, a critical-size femoral defect in rats was filled with scaffolds made from BGs. Bone regeneration was evaluated by micro-computed tomography. Histological analysis was performed to assess bone maturation and angiogenesis. In vivo effects regarding defect closure, presence of osteoclastic cells or vascular structures in the defect were not significantly changed by the addition of Cu compared with undoped 0106-B1-BG scaffolds. Hence, while the in vitro properties of the 0106-B1-BG were significantly improved by the incorporation of Cu, further evaluation of the BG composition is necessary to transfer these effects to an in vivo setting.
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Affiliation(s)
- Linn Anna Fiehn
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Elke Kunisch
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Merve Saur
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | | | - Christian Merle
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Sébastien Hagmann
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Adrian Stiller
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Leena Hupa
- Johan Gadolin Process Chemistry Centre, Åbo Akademi University, Turku, Finland
| | - Hana Kaňková
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
| | - Dagmar Galusková
- Centre for Functional and Surface Functionalized Glass, Alexander Dubček University of Trenčín, Trenčín, Slovakia
| | - Tobias Renkawitz
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
| | - Aldo R Boccaccini
- Institute of Biomaterials, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Fabian Westhauser
- Department of Orthopaedics, Heidelberg University Hospital, Heidelberg, Germany
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2
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Li C, Huang S, Li Q, Zhuo L, Kang Y, Liu P, Huang W, Ma K, Lin X, Zhuang W, Chen D, Wang H, Yan L, Wang D, Lin Y, Kang D, Lin F. Plasma biomarkers in patients with familial cavernous malformation and their first-degree relatives. RESEARCH SQUARE 2024:rs.3.rs-4545797. [PMID: 39011103 PMCID: PMC11247933 DOI: 10.21203/rs.3.rs-4545797/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
Background We aimed to explore the differences in plasma biomarker levels between patients with familial cerebral cavernous malformations (FCCM) and their healthy first-degree relatives (FDRs) and between FCCM patients with and without severe chronic disease aggressiveness (CDA). Methods Magnetic resonance imaging (MRI) scanning and genetic testing was performed in patients with multiple CCMs and their FDRs. Sixty-seven plasma biomarkers were tested using a customised multiplex bead immunoassay kit. Univariate and multivariate unconditional logistic regression analyses were conducted to determine the associations between plasma factors and the risk of developing FCCM and severe CDA. Receiver operating characteristic (ROC) curves were generated for each independent risk factor. Results Plasma factors of 37 patients with FCCM and 37 FDRs were examined. Low CD31 (P < 0.001) and BDNF levels (P = 0.013) were independent risk factors for FCCM. The best model was achieved by combining the results of CD31 and BDNF (AUC = 0.845, sensitivity 0.838, specificity 0.784, cutoff score - 4.295) to distinguish patients with FCCM from healthy FDRs. Low serpin E1/PAI-1 (P = 0.011) and high ROBO4 levels (P = 0.013) were independent risk factors for severe CDA in patients with FCCM. The best model was achieved by combining the results of E1/PAI-1 and ROBO4 levels (AUC = 0.913, sensitivity 1.000, specificity 0.760, cutoff score - 0.525) to identify patients with FCCM and severe CDA. Conclusions The plasma concentrations of CD31 and BDNF seem to be lower in patients with FCCM than in their healthy FDRs. Low serpin E1/PAI-1 and high ROBO4 concentrations may be correlated with high lesion burden and risk of recurrent bleeding.
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Affiliation(s)
- Chunwang Li
- First Affiliated Hospital of Fujian Medical University
| | - Shuna Huang
- First Affiliated Hospital of Fujian Medical University
| | - Qixuan Li
- First Affiliated Hospital of Fujian Medical University
| | - Lingyun Zhuo
- First Affiliated Hospital of Fujian Medical University
| | - Yaqing Kang
- First Affiliated Hospital of Fujian Medical University
| | - Penghui Liu
- First Affiliated Hospital of Fujian Medical University
| | - Weilin Huang
- First Affiliated Hospital of Fujian Medical University
| | - Ke Ma
- First Affiliated Hospital of Fujian Medical University
| | - Xinru Lin
- First Affiliated Hospital of Fujian Medical University
| | | | - Darong Chen
- First Affiliated Hospital of Fujian Medical University
| | - Huimin Wang
- First Affiliated Hospital of Fujian Medical University
| | - Lingjun Yan
- First Affiliated Hospital of Fujian Medical University
| | | | - Yuanxiang Lin
- First Affiliated Hospital of Fujian Medical University
| | - Dezhi Kang
- First Affiliated Hospital of Fujian Medical University
| | - Fuxin Lin
- First Affiliated Hospital of Fujian Medical University
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3
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Park J, Wang J, Guan W, Gjesteby LA, Pollack D, Kamentsky L, Evans NB, Stirman J, Gu X, Zhao C, Marx S, Kim ME, Choi SW, Snyder M, Chavez D, Su-Arcaro C, Tian Y, Park CS, Zhang Q, Yun DH, Moukheiber M, Feng G, Yang XW, Keene CD, Hof PR, Ghosh SS, Frosch MP, Brattain LJ, Chung K. Integrated platform for multiscale molecular imaging and phenotyping of the human brain. Science 2024; 384:eadh9979. [PMID: 38870291 DOI: 10.1126/science.adh9979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/22/2024] [Indexed: 06/15/2024]
Abstract
Understanding cellular architectures and their connectivity is essential for interrogating system function and dysfunction. However, we lack technologies for mapping the multiscale details of individual cells and their connectivity in the human organ-scale system. We developed a platform that simultaneously extracts spatial, molecular, morphological, and connectivity information of individual cells from the same human brain. The platform includes three core elements: a vibrating microtome for ultraprecision slicing of large-scale tissues without losing cellular connectivity (MEGAtome), a polymer hydrogel-based tissue processing technology for multiplexed multiscale imaging of human organ-scale tissues (mELAST), and a computational pipeline for reconstructing three-dimensional connectivity across multiple brain slabs (UNSLICE). We applied this platform for analyzing human Alzheimer's disease pathology at multiple scales and demonstrating scalable neural connectivity mapping in the human brain.
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Affiliation(s)
- Juhyuk Park
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
- Center for Nanomedicine, Institute for Basic Science, Seoul 03722, Republic of Korea
| | - Ji Wang
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Webster Guan
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA
| | | | | | - Lee Kamentsky
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Nicholas B Evans
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Jeff Stirman
- LifeCanvas Technologies, Cambridge, MA 02141, USA
| | - Xinyi Gu
- Department of Electrical Engineering and Computer Science, MIT, Cambridge, MA 02139, USA
| | - Chuanxi Zhao
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Slayton Marx
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Minyoung E Kim
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA 02139, USA
| | - Seo Woo Choi
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA
| | | | - David Chavez
- MIT Lincoln Laboratory, Lexington, MA 02421, USA
| | - Clover Su-Arcaro
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Yuxuan Tian
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA
| | - Chang Sin Park
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience, University of California, Los Angeles, CA 90024, USA
| | - Qiangge Zhang
- McGovern Institute for Brain Research, MIT, Cambridge, MA 02139, USA
| | - Dae Hee Yun
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA 02139, USA
| | - Mira Moukheiber
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
| | - Guoping Feng
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA 02139, USA
- McGovern Institute for Brain Research, MIT, Cambridge, MA 02139, USA
| | - X William Yang
- Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine at UCLA, Los Angeles, CA 90095, USA
- Center for Neurobehavioral Genetics, Jane and Terry Semel Institute for Neuroscience, University of California, Los Angeles, CA 90024, USA
| | - C Dirk Keene
- Department of Laboratory Medicine and Pathology, University of Washington School of Medicine, Seattle, WA 98115, USA
| | - Patrick R Hof
- Nash Family Department of Neuroscience, Center for Discovery and Innovation, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10019, USA
| | - Satrajit S Ghosh
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA 02139, USA
- McGovern Institute for Brain Research, MIT, Cambridge, MA 02139, USA
- Department of Otolaryngology, Harvard Medical School, Boston, MA 02114, USA
| | - Matthew P Frosch
- C. S. Kubik Laboratory for Neuropathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114, USA
| | | | - Kwanghun Chung
- Institute for Medical Engineering and Science, Massachusetts Institute of Technology (MIT), Cambridge, MA 02139, USA
- Department of Chemical Engineering, MIT, Cambridge, MA 02139, USA
- Picower Institute for Learning and Memory, MIT, Cambridge, MA 02139, USA
- Department of Brain and Cognitive Sciences, MIT, Cambridge, MA 02139, USA
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Shi Q, Zhao Y, Liu M, Shi F, Chen L, Xu X, Gao J, Zhao H, Lu F, Qin Y, Zhang Z, Lian M. Engineering Platelet Membrane-Coated Bimetallic MOFs as Biodegradable Nanozymes for Efficient Antibacterial Therapy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309366. [PMID: 38150620 DOI: 10.1002/smll.202309366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/03/2023] [Indexed: 12/29/2023]
Abstract
Nanocatalytic-based wound therapeutics present a promising strategy for generating reactive oxygen species (ROS) to antipathogen to promote wound healing. However, the full clinical potential of these nanocatalysts is limited by their low reactivity, limited targeting ability, and poor biodegradability in the wound microenvironment. Herein, a bio-organic nanozyme is developed by encapsulating a FeZn-based bimetallic organic framework (MOF) (MIL-88B-Fe/Zn) in platelet membranes (PM@MIL-88B-Fe/Zn) for antimicrobial activity during wound healing. The introduction of Zn in MIL-88B-Fe/Zn modulates the electronic structure of Fe thus accelerating the catalytic kinetics of its peroxidase-like activity to catalytically generate powerful ROS. The platelet membrane coating of MOF innovatively enhanced the interaction between nanoparticles and the biological environment, further developing bacterial-targeted therapy with excellent antibacterial activity against both gram-positive and gram-negative bacteria. Furthermore, this nanozyme markedly suppressed the levels of inflammatory cytokines and promoted angiogenesis in vivo to effectively treat skin surface wounds and accelerate wound healing. PM@MIL-88B-Fe/Zn exhibited superior biodegradability, favourable metabolism and non-toxic accumulation, eliminating concerns regarding side effects from long-term exposure. The high catalytic reactivity, excellent targeting features, and biodegradability of these nanoenzymes developed in this study provide useful insights into the design and synthesis of nanocatalysts/nanozymes for practical biomedical applications.
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Affiliation(s)
- Qingying Shi
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Ye Zhao
- Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development, School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin, 300300, China
| | - Meihan Liu
- Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development, School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin, 300300, China
| | - Feiyu Shi
- Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development, School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin, 300300, China
| | - Liuxing Chen
- Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development, School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin, 300300, China
| | - Xinru Xu
- Key Laboratory of Organic Integrated Circuit, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Jing Gao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Huabing Zhao
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Fuping Lu
- Key Laboratory of Industrial Fermentation Microbiology of the Ministry of Education, Tianjin Key Laboratory of Industrial Microbiology, College of Biotechnology, Tianjin University of Science and Technology, Tianjin, 300457, China
| | - Yongji Qin
- ShenSi Lab, Shenzhen Institute for Advanced Study, University of Electronic Science and Technology of China, Shenzhen, 518110, China
| | - Zhen Zhang
- Key Laboratory of Organic Integrated Circuit, Ministry of Education & Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Science, Tianjin University, Tianjin, 300072, China
| | - Meiling Lian
- Tianjin Engineering Research Center of Civil Aviation Energy Environment and Green Development, School of Transportation Science and Engineering, Civil Aviation University of China, Tianjin, 300300, China
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5
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Qian G, Adeyanju O, Cai D, Tucker TA, Idell S, Chen SY, Guo X. DOCK2 Promotes Atherosclerosis by Mediating the Endothelial Cell Inflammatory Response. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:599-611. [PMID: 37838011 PMCID: PMC10988758 DOI: 10.1016/j.ajpath.2023.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/20/2023] [Accepted: 09/27/2023] [Indexed: 10/16/2023]
Abstract
The pathology of atherosclerosis, a leading cause of mortality in patients with cardiovascular disease, involves inflammatory phenotypic changes in vascular endothelial cells. This study explored the role of the dedicator of cytokinesis (DOCK)-2 protein in atherosclerosis. Mice with deficiencies in low-density lipoprotein receptor and Dock2 (Ldlr-/-Dock2-/-) and controls (Ldlr-/-) were fed a high-fat diet (HFD) to induce atherosclerosis. In controls, Dock2 was increased in atherosclerotic lesions, with increased intercellular adhesion molecule (Icam)-1 and vascular cell adhesion molecule (Vcam)-1, after HFD for 4 weeks. Ldlr-/-Dock2-/- mice exhibited significantly decreased oil red O staining in both aortic roots and aortas compared to that in controls after HFD for 12 weeks. In control mice and in humans, Dock2 was highly expressed in the ECs of atherosclerotic lesions. Dock2 deficiency was associated with attenuation of Icam-1, Vcam-1, and monocyte chemoattractant protein (Mcp)-1 in the aortic roots of mice fed HFD. Findings in human vascular ECs in vitro suggested that DOCK2 was required in TNF-α-mediated expression of ICAM-1/VCAM-1/MCP-1. DOCK2 knockdown was associated with attenuated NF-κB phosphorylation with TNF-α, partially accounting for DOCK2-mediated vascular inflammation. With DOCK2 knockdown in human vascular ECs, TNF-α-mediated VCAM-1 promoter activity was inhibited. The findings from this study suggest the novel concept that DOCK2 promotes the pathogenesis of atherosclerosis by modulating inflammation in vascular ECs.
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Affiliation(s)
- Guoqing Qian
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Oluwaseun Adeyanju
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Dunpeng Cai
- Department of Surgery, School of Medicine, The University of Missouri, Columbia, Missouri
| | - Torry A Tucker
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Steven Idell
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas
| | - Shi-You Chen
- Department of Surgery, School of Medicine, The University of Missouri, Columbia, Missouri; The Research Service, Harry S. Truman Memorial Veterans Hospital, Columbia, Missouri; Department of Physiology and Pharmacology, University of Georgia, Athens, Georgia.
| | - Xia Guo
- Department of Cellular and Molecular Biology, The University of Texas Health Science Center at Tyler, Tyler, Texas; Department of Physiology and Pharmacology, University of Georgia, Athens, Georgia.
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6
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Li D, Li Q, Xu T, Guo X, Tang H, Wang W, Zhang W, Zhang Y. Pro-vasculogenic Fibers by PDA-Mediated Surface Functionalization Using Cell-Free Fat Extract (CEFFE). Biomacromolecules 2024; 25:1550-1562. [PMID: 38411008 DOI: 10.1021/acs.biomac.3c01124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Formation of adequate vascular network within engineered three-dimensional (3D) tissue substitutes postimplantation remains a major challenge for the success of biomaterials-based tissue regeneration. To better mimic the in vivo angiogenic and vasculogenic processes, nowadays increasing attention is given to the strategy of functionalizing biomaterial scaffolds with multiple bioactive agents. Aimed at engineering electrospun biomimicking fibers with pro-vasculogenic capability, this study was proposed to functionalize electrospun fibers of polycaprolactone/gelatin (PCL/GT) by cell-free fat extract (CEFFE or FE), a newly emerging natural "cocktail" of cytokines and growth factors extracted from human adipose tissue. This was achieved by having the electrospun PCL/GT fiber surface coated with polydopamine (PDA) followed by PDA-mediated immobilization of FE to generate the pro-vasculogenic fibers of FE-PDA@PCL/GT. It was found that the PDA-coated fibrous mat of PCL/GT exhibited a high FE-loading efficiency (∼90%) and enabled the FE to be released in a highly sustained manner. The engineered FE-PDA@PCL/GT fibers possess improved cytocompatibility, as evidenced by the enhanced cellular proliferation, migration, and RNA and protein expressions (e.g., CD31, vWF, VE-cadherin) in the human umbilical vein endothelial cells (huvECs) used. Most importantly, the FE-PDA@PCL/GT fibrous scaffolds were found to enormously stimulate tube formation in vitro, microvascular development in the in ovo chick chorioallantoic membrane (CAM) assay, and vascularization of 3D construct in a rat subcutaneous embedding model. This study highlights the potential of currently engineered pro-vasculogenic fibers as a versatile platform for engineering vascularized biomaterial constructs for functional tissue regeneration.
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Affiliation(s)
- Donghong Li
- College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Qinglin Li
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Tingting Xu
- College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Xuran Guo
- College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Han Tang
- College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
| | - Wenbo Wang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Wenjie Zhang
- Department of Plastic and Reconstructive Surgery, Shanghai Key Laboratory of Tissue Engineering, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Yanzhong Zhang
- College of Biological Science and Medical Engineering, Donghua University, Shanghai 201620, China
- Shanghai Engineering Research Center of Nano-Biomaterials and Regenerative Medicine, Donghua University, Shanghai 201620, China
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7
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Zhang K, Yao E, Aung T, Chuang PT. The alveolus: Our current knowledge of how the gas exchange unit of the lung is constructed and repaired. Curr Top Dev Biol 2024; 159:59-129. [PMID: 38729684 DOI: 10.1016/bs.ctdb.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
The mammalian lung completes its last step of development, alveologenesis, to generate sufficient surface area for gas exchange. In this process, multiple cell types that include alveolar epithelial cells, endothelial cells, and fibroblasts undergo coordinated cell proliferation, cell migration and/or contraction, cell shape changes, and cell-cell and cell-matrix interactions to produce the gas exchange unit: the alveolus. Full functioning of alveoli also involves immune cells and the lymphatic and autonomic nervous system. With the advent of lineage tracing, conditional gene inactivation, transcriptome analysis, live imaging, and lung organoids, our molecular understanding of alveologenesis has advanced significantly. In this review, we summarize the current knowledge of the constituents of the alveolus and the molecular pathways that control alveolar formation. We also discuss how insight into alveolar formation may inform us of alveolar repair/regeneration mechanisms following lung injury and the pathogenic processes that lead to loss of alveoli or tissue fibrosis.
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Affiliation(s)
- Kuan Zhang
- Cardiovascular Research Institute, University of California, San Francisco, CA, United States
| | - Erica Yao
- Cardiovascular Research Institute, University of California, San Francisco, CA, United States
| | - Thin Aung
- Cardiovascular Research Institute, University of California, San Francisco, CA, United States
| | - Pao-Tien Chuang
- Cardiovascular Research Institute, University of California, San Francisco, CA, United States.
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Kostin S, Giannakopoulos T, Richter M, Krizanic F, Sasko B, Ritter O, Pagonas N. Coronary microthrombi in the failing human heart: the role of von Willebrand factor and PECAM-1. Mol Cell Biochem 2024:10.1007/s11010-024-04942-0. [PMID: 38381272 DOI: 10.1007/s11010-024-04942-0] [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: 12/01/2023] [Accepted: 01/13/2024] [Indexed: 02/22/2024]
Abstract
The recognition of microthrombi in the heart microcirculation has recently emerged from studies in COVID-19 decedents. The present study investigated the ultrastructure of coronary microthrombi in heart failure (HF) due to cardiomyopathies that are unrelated to COVID-19 infection. In addition, we have investigated the role of von Willebrand factor (VWF) and PECAM-1 in microthrombus formation. We used electron microscopy to investigate the occurrence of microthrombi in patients with HF due to dilated (DCM, n = 7), inflammatory (MYO, n = 6) and ischemic (ICM, n = 7) cardiomyopathy and 4 control patients. VWF and PECAM-1 was studied by quantitative immunohistochemistry and Western blot. In comparison to control, the number of microthrombi was increased 7-9 times in HF. This was associated with a 3.5-fold increase in the number of Weibel-Palade bodies (WPb) in DCM and MYO compared to control. A fivefold increase in WPb in ICM was significantly different from control, DCM and MYO. In Western blot, VWF was increased twofold in DCM and MYO, and more than threefold in ICM. The difference between ICM and DCM and MYO was statistically significant. These results were confirmed by quantitative immunohistochemistry. Compared to control, PECAM-1 was by approximatively threefold increased in all groups of patients. This is the first study to demonstrate the occurrence of microthrombi in the failing human heart. The occurrence of microthrombi is associated with increased expression of VWF and the number of WPb, being more pronounced in ICM. These changes are likely not compensated by increases in PECAM-1 expression.
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Affiliation(s)
- Sawa Kostin
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany.
| | - Theodoros Giannakopoulos
- Department of Internal Medicine and Cardiology, Brandenburg Medical School Theodor Fontane, University Clinic Neuruppin-Brandenburg, Neuruppin, Germany
| | - Manfred Richter
- Department of Cardiac Surgery, Kerckhoff-Clinic, Bad Nauheim, Germany
| | - Florian Krizanic
- Department of Internal Medicine and Cardiology, Brandenburg Medical School Theodor Fontane, University Clinic Neuruppin-Brandenburg, Neuruppin, Germany
| | - Benjamin Sasko
- Medical Department II, Marien Hospital Herne, Ruhr-University of Bochum, Herne, Germany
| | - Oliver Ritter
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
- Department of Cardiology, University Hospital Brandenburg, Brandenburg an der Havel, Germany
| | - Nikolaos Pagonas
- Faculty of Health Sciences Brandenburg, Brandenburg Medical School Theodor Fontane, Neuruppin, Germany
- Department of Internal Medicine and Cardiology, Brandenburg Medical School Theodor Fontane, University Clinic Neuruppin-Brandenburg, Neuruppin, Germany
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Nashine S, Kenney MC. Effects of Humanin G (HNG) on angiogenesis and neurodegeneration markers in Age-related Macular Degeneration (AMD). Mitochondrion 2024; 74:101818. [PMID: 38029849 DOI: 10.1016/j.mito.2023.11.001] [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: 09/19/2023] [Accepted: 11/09/2023] [Indexed: 12/01/2023]
Abstract
Advanced stages of Age-related Macular Degeneration (AMD) are characterized by retinal neurodegeneration and aberrant angiogenesis, and mitochondrial dysfunction contributes to the pathogenesis of AMD. In this study, we tested the hypothesis that Humanin G (HNG), a cytoprotective mitochondrial-derived peptide, positively regulates cell proliferation, cell death, and the protein levels of angiogenesis and neurodegeneration markers, in normal (control) and AMD RPE transmitochondrial cybrid cell lines. These normal and AMD RPE transmitochondrial cybrid cell lines had identical nuclei derived from mitochondria-deficient ARPE-19 cell line, but differed in mitochondrial DNA (mtDNA) content that was derived from clinically characterized AMD patients and normal (control) subjects. Cell lysates were extracted from untreated and HNG-treated AMD and normal (control) cybrid cell lines, and the Luminex XMAP multiplex assay was used to examine the protein levels of angiogenesis and neurodegeneration markers. Humanin G reduced Caspase-3/7-mediated apoptosis, improved cell proliferation, and normalized the protein levels of angiogenesis and neurodegeneration markers in AMD RPE cybrid cell lines, thereby suggesting Humanin G's positive regulatory role in AMD.
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Affiliation(s)
- Sonali Nashine
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California Irvine, Irvine, CA 92697, USA
| | - M Cristina Kenney
- Department of Ophthalmology, Gavin Herbert Eye Institute, University of California Irvine, Irvine, CA 92697, USA; Department of Pathology and Laboratory Medicine, University of California Irvine, Irvine, CA 92697, USA.
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10
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Zhou X, Liu M, Sun L, Cao Y, Tan S, Luo G, Liu T, Yao Y, Xiao W, Wan Z, Tang J. Circulating small extracellular vesicles microRNAs plus CA-125 for treatment stratification in advanced ovarian cancer. J Transl Med 2023; 21:927. [PMID: 38129848 PMCID: PMC10740240 DOI: 10.1186/s12967-023-04774-4] [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: 06/08/2023] [Accepted: 11/28/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND No residual disease (R0 resection) after debulking surgery is the most critical independent prognostic factor for advanced ovarian cancer (AOC). There is an unmet clinical need for selecting primary or interval debulking surgery in AOC patients using existing prediction models. METHODS RNA sequencing of circulating small extracellular vesicles (sEVs) was used to discover the differential expression microRNAs (DEMs) profile between any residual disease (R0, n = 17) and no residual disease (non-R0, n = 20) in AOC patients. We further analyzed plasma samples of AOC patients collected before surgery or neoadjuvant chemotherapy via TaqMan qRT-PCR. The combined risk model of residual disease was developed by logistic regression analysis based on the discovery-validation sets. RESULTS Using a comprehensive plasma small extracellular vesicles (sEVs) microRNAs (miRNAs) profile in AOC, we identified and optimized a risk prediction model consisting of plasma sEVs-derived 4-miRNA and CA-125 with better performance in predicting R0 resection. Based on 360 clinical human samples, this model was constructed using least absolute shrinkage and selection operator (LASSO) and logistic regression analysis, and it has favorable calibration and discrimination ability (AUC:0.903; sensitivity:0.897; specificity:0.910; PPV:0.926; NPV:0.871). The quantitative evaluation of Net Reclassification Improvement (NRI) and Integrated Discrimination Improvement (IDI) suggested that the additional predictive power of the combined model was significantly improved contrasted with CA-125 or 4-miRNA alone (NRI = 0.471, IDI = 0.538, p < 0.001; NRI = 0.122, IDI = 0.185, p < 0.01). CONCLUSION Overall, we established a reliable, non-invasive, and objective detection method composed of circulating tumor-derived sEVs 4-miRNA plus CA-125 to preoperatively anticipate the high-risk AOC patients of residual disease to optimize clinical therapy.
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Affiliation(s)
- Xiaofang Zhou
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, People's Republic of China
- Department of Oncology, Xiangya Cancer Center, Xiangya Hospital, Central South University, Changsha, 410008, People's Republic of China
| | - Mu Liu
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, People's Republic of China
| | - Lijuan Sun
- Department of Gynecology and Obstetrics, The Central Hospital of Shaoyang, Shaoyang, 422000, People's Republic of China
| | - Yumei Cao
- Department of Gynecology and Obstetrics, The Central Hospital of Shaoyang, Shaoyang, 422000, People's Republic of China
| | - Shanmei Tan
- Department of Gynecology and Obstetrics, The First People's Hospital of Huaihua, The Affiliated Huaihua Hospital of University of South China, Huaihua, 418000, People's Republic of China
| | - Guangxia Luo
- Department of Gynecology and Obstetrics, The First People's Hospital of Huaihua, The Affiliated Huaihua Hospital of University of South China, Huaihua, 418000, People's Republic of China
| | - Tingting Liu
- Department of Gynecology and Obstetrics, The First People's Hospital of Changde, Changde, 415000, People's Republic of China
| | - Ying Yao
- Department of Gynecology and Obstetrics, The First People's Hospital of Yueyang, Yueyang, 414000, People's Republic of China
| | - Wangli Xiao
- Department of Gynecology and Obstetrics, The First People's Hospital of Yueyang, Yueyang, 414000, People's Republic of China
| | - Ziqing Wan
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, People's Republic of China
| | - Jie Tang
- Department of Gynecologic Oncology, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Changsha, 410013, People's Republic of China.
- Department of Gynecologic Oncology, Hunan Gynecologic Cancer Research Center, Hunan Cancer Hospital, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University, Address: 283 Tongzipo Road, Yuelu District, Changsha, 410013, People's Republic of China.
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11
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Wendt TS, Gonzales RJ. Ozanimod differentially preserves human cerebrovascular endothelial barrier proteins and attenuates matrix metalloproteinase-9 activity following in vitro acute ischemic injury. Am J Physiol Cell Physiol 2023; 325:C951-C971. [PMID: 37642239 DOI: 10.1152/ajpcell.00342.2023] [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: 07/26/2023] [Revised: 08/23/2023] [Accepted: 08/24/2023] [Indexed: 08/31/2023]
Abstract
Endothelial integrity is critical in mitigating a vicious cascade of secondary injuries following acute ischemic stroke (AIS). Matrix metalloproteinase-9 (MMP-9), a contributor to endothelial integrity loss, is elevated during stroke and is associated with worsened stroke outcome. We investigated the FDA-approved selective sphingosine-1-phosphate receptor 1 (S1PR1) ligand, ozanimod, on the regulation/activity of MMP-9 as well as endothelial barrier components [platelet endothelial cell adhesion molecule 1 (PECAM-1), claudin-5, and zonula occludens 1 (ZO-1)] in human brain microvascular endothelial cells (HBMECs) following hypoxia plus glucose deprivation (HGD). We previously reported that S1PR1 activation improves HBMEC integrity; however, mechanisms underlying S1PR1 involvement in endothelial cell barrier integrity have not been clearly elucidated. We hypothesized that ozanimod would attenuate an HGD-induced increase in MMP-9 activity that would concomitantly attenuate the loss of integral barrier components. Male HBMECs were treated with ozanimod or vehicle and exposed to 3 h of normoxia (21% O2) or HGD (1% O2). Immunoblotting, zymography, qRT-PCR, and immunocytochemical labeling techniques assessed processes related to MMP-9 and barrier markers. We observed that HGD acutely increased MMP-9 activity and reduced claudin-5 and PECAM-1 levels, and ozanimod attenuated these responses. In situ analysis, via PROSPER, suggested that attenuation of MMP-9 activity may be a primary factor in maintaining these integral barrier proteins. We also observed that HGD increased intracellular mechanisms associated with augmented MMP-9 activation; however, ozanimod had no effect on these select factors. Thus, we conclude that ozanimod has the potential to attenuate HGD-mediated decreases in HBMEC integrity in part by decreasing MMP-9 activity as well as preserving barrier properties.NEW & NOTEWORTHY We have identified a potential novel mechanism by which ozanimod, a selective sphingosine-1-phosphate receptor 1 (S1PR1) agonist, attenuates hypoxia plus glucose deprivation (HGD)-induced matrix metalloproteinase-9 (MMP-9) activity and disruptions in integral human brain endothelial cell barrier proteins. Our results suggest that ischemic-like injury elicits increased MMP-9 activity and alterations of barrier integrity proteins in human brain microvascular endothelial cells (HBMECs) and that ozanimod via S1PR1 attenuates these HGD-induced responses, adding to its therapeutic potential in cerebrovascular protection during the acute phase of ischemic stroke.
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Affiliation(s)
- Trevor S Wendt
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, Arizona, United States
| | - Rayna J Gonzales
- Department of Basic Medical Sciences, University of Arizona College of Medicine, Phoenix, Arizona, United States
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12
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Vasalou V, Kotidis E, Tatsis D, Boulogeorgou K, Grivas I, Koliakos G, Cheva A, Ioannidis O, Tsingotjidou A, Angelopoulos S. The Effects of Tissue Healing Factors in Wound Repair Involving Absorbable Meshes: A Narrative Review. J Clin Med 2023; 12:5683. [PMID: 37685753 PMCID: PMC10488606 DOI: 10.3390/jcm12175683] [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: 06/21/2023] [Revised: 08/17/2023] [Accepted: 08/26/2023] [Indexed: 09/10/2023] Open
Abstract
Wound healing is a complex and meticulously orchestrated process involving multiple phases and cellular interactions. This narrative review explores the intricate mechanisms behind wound healing, emphasizing the significance of cellular processes and molecular factors. The phases of wound healing are discussed, focusing on the roles of immune cells, growth factors, and extracellular matrix components. Cellular shape alterations driven by cytoskeletal modulation and the influence of the 'Formin' protein family are highlighted for their impact on wound healing processes. This review delves into the use of absorbable meshes in wound repair, discussing their categories and applications in different surgical scenarios. Interleukins (IL-2 and IL-6), CD31, CD34, platelet rich plasma (PRP), and adipose tissue-derived mesenchymal stem cells (ADSCs) are discussed in their respective roles in wound healing. The interactions between these factors and their potential synergies with absorbable meshes are explored, shedding light on how these combinations might enhance the healing process. Recent advances and challenges in the field are also presented, including insights into mesh integration, biocompatibility, infection prevention, and postoperative complications. This review underscores the importance of patient-specific factors and surgical techniques in optimizing mesh placement and healing outcomes. As wound healing remains a dynamic field, this narrative review provides a comprehensive overview of the current understanding and potential avenues for future research and clinical applications.
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Affiliation(s)
- Varvara Vasalou
- Fourth Surgical Department, School of Medicine, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
- Andreas Syggros Hospital, 11528 Athens, Greece
| | - Efstathios Kotidis
- Fourth Surgical Department, School of Medicine, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
| | - Dimitris Tatsis
- Fourth Surgical Department, School of Medicine, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
- Oral and Maxillofacial Surgery Department, School of Dentistry, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
| | - Kassiani Boulogeorgou
- Department of Pathology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (K.B.)
| | - Ioannis Grivas
- Laboratory of Anatomy, Histology & Embryology, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Georgios Koliakos
- Department of Biochemistry, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Angeliki Cheva
- Department of Pathology, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (K.B.)
| | - Orestis Ioannidis
- Fourth Surgical Department, School of Medicine, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
| | - Anastasia Tsingotjidou
- Laboratory of Anatomy, Histology & Embryology, School of Veterinary Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Stamatis Angelopoulos
- Fourth Surgical Department, School of Medicine, Aristotle University of Thessaloniki, 57010 Thessaloniki, Greece
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Mondal DK, Xie C, Buraschi S, Iozzo RV. Decorin suppresses tumor lymphangiogenesis: A mechanism to curtail cancer progression. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.28.555187. [PMID: 37693608 PMCID: PMC10491239 DOI: 10.1101/2023.08.28.555187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/12/2023]
Abstract
The complex interplay between malignant cells and the cellular and molecular components of the tumor stroma is a key aspect of cancer growth and development. These tumor-host interactions are often affected by soluble bioactive molecules such as proteoglycans. Decorin, an archetypical small leucine-rich proteoglycan primarily expressed by stromal cells, affects cancer growth in its soluble form by interacting with several receptor tyrosine kinases (RTK). Overall, decorin leads to a context-dependent and protracted cessation of oncogenic RTK activity by attenuating their ability to drive a pro-survival program and to sustain a pro-angiogenic network. Through an unbiased transcriptomic analysis using deep RNAseq, we discovered that decorin downregulated a cluster of tumor-associated genes involved in lymphatic vessel development when systemically delivered to mice harboring breast carcinoma allografts. We found that Lyve1 and Podoplanin, two established markers of lymphatic vessels, were markedly suppressed at both the mRNA and protein levels and this suppression correlated with a significant reduction in tumor lymphatic vessels. We further discovered that soluble decorin, but not its homologous proteoglycan biglycan, inhibited lymphatic vessel sprouting in an ex vivo 3D model of lymphangiogenesis. Mechanistically, we found that decorin interacted with VEGFR3, the main lymphatic RTK, and its activity was required for the decorin-mediated block of lymphangiogenesis. Finally, we discovered that Lyve1 was in part degraded via decorin-evoked autophagy in a nutrient- and energy-independent manner. These findings implicate decorin as a new biological factor with anti-lymphangiogenic activity and provide a potential therapeutic agent for curtailing breast cancer growth and metastasis.
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14
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Hermans D, Rodriguez-Mogeda C, Kemps H, Bronckaers A, de Vries HE, Broux B. Nectins and Nectin-like molecules drive vascular development and barrier function. Angiogenesis 2023; 26:349-362. [PMID: 36867287 DOI: 10.1007/s10456-023-09871-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 02/10/2023] [Indexed: 03/04/2023]
Abstract
Angiogenesis, barriergenesis, and immune cell migration are all key physiological events that are dependent on the functional characteristics of the vascular endothelium. The protein family of Nectins and Nectin-like molecules (Necls) is a group of cell adhesion molecules that are widely expressed by different endothelial cell types. The family includes four Nectins (Nectin-1 to -4) and five Necls (Necl-1 to -5) that either interact with each other by forming homo- and heterotypical interactions or bind to ligands expressed within the immune system. Nectin and Necl proteins are mainly described to play a role in cancer immunology and in the development of the nervous system. However, Nectins and Necls are underestimated players in the formation of blood vessels, their barrier properties, and in guiding transendothelial migration of leukocytes. This review summarizes their role in supporting the endothelial barrier through their function in angiogenesis, cell-cell junction formation, and immune cell migration. In addition, this review provides a detailed overview of the expression patterns of Nectins and Necls in the vascular endothelium.
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Affiliation(s)
- Doryssa Hermans
- Department of Immunology and Infection, UHasselt, Biomedical Research Institute (BIOMED), Diepenbeek, Belgium
| | - Carla Rodriguez-Mogeda
- Molecular Cell Biology and Immunology, MS Center Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands
| | - Hannelore Kemps
- Department of Cardio & Organ Systems, UHasselt, Biomedical Research Institute (BIOMED), Diepenbeek, Belgium
- KU Leuven, Department of Cardiovascular Sciences, Center for Molecular and Vascular Biology, Leuven, Belgium
| | - Annelies Bronckaers
- Department of Cardio & Organ Systems, UHasselt, Biomedical Research Institute (BIOMED), Diepenbeek, Belgium
| | - Helga E de Vries
- Molecular Cell Biology and Immunology, MS Center Amsterdam, Vrije Universiteit Amsterdam, Amsterdam Neuroscience, Amsterdam UMC Location VUmc, Amsterdam, The Netherlands
| | - Bieke Broux
- Department of Immunology and Infection, UHasselt, Biomedical Research Institute (BIOMED), Diepenbeek, Belgium.
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15
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Nicoletti C, Wei X, Etxaniz U, D’Ercole C, Madaro L, Perera R, Puri PL. Muscle denervation promotes functional interactions between glial and mesenchymal cells through NGFR and NGF. iScience 2023; 26:107114. [PMID: 37416457 PMCID: PMC10319848 DOI: 10.1016/j.isci.2023.107114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 04/28/2023] [Accepted: 06/09/2023] [Indexed: 07/08/2023] Open
Abstract
We performed scRNA-seq/snATAC-seq of skeletal muscles post sciatic nerve transection to delineate cell type-specific patterns of gene expression/chromatin accessibility at different time points post-denervation. Unlike myotrauma, denervation selectively activates glial cells and Thy1/CD90-expressing mesenchymal cells. Glial cells expressed Ngf receptor (Ngfr) and were located near neuromuscular junctions (NMJs), close to Thy1/CD90-expressing cells, which provided the main cellular source of NGF post-denervation. Functional communication between these cells was mediated by NGF/NGFR, as either recombinant NGF or co-culture with Thy1/CD90-expressing cells could increase glial cell number ex vivo. Pseudo-time analysis in glial cells revealed an initial bifurcation into processes related to either cellular de-differentiation/commitment to specialized cell types (e.g., Schwann cells), or failure to promote nerve regeneration, leading to extracellular matrix remodeling toward fibrosis. Thus, interactions between denervation-activated Thy1/CD90-expressing and glial cells represent an early abortive process toward NMJs repair, ensued by the conversion of denervated muscles into an environment hostile for NMJ repair.
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Affiliation(s)
- Chiara Nicoletti
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Xiuqing Wei
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Usue Etxaniz
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
| | - Chiara D’Ercole
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, 00161 Rome, Italy
- Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Luca Madaro
- Department of Anatomical, Histological, Forensic and Orthopedic Sciences, Sapienza University of Rome, 00161 Rome, Italy
- Laboratory affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Rome, Italy
| | - Ranjan Perera
- Department of Oncology, Sidney Kimmel Comprehensive Cancer Center, School of Medicine, Johns Hopkins University, 1650 Orleans Street, Baltimore, MD 21231, USA
| | - Pier Lorenzo Puri
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, La Jolla, CA 92037, USA
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Chuntharpursat-Bon E, Povstyan OV, Ludlow MJ, Carrier DJ, Debant M, Shi J, Gaunt HJ, Bauer CC, Curd A, Simon Futers T, Baxter PD, Peckham M, Muench SP, Adamson A, Humphreys N, Tumova S, Bon RS, Cubbon R, Lichtenstein L, Beech DJ. PIEZO1 and PECAM1 interact at cell-cell junctions and partner in endothelial force sensing. Commun Biol 2023; 6:358. [PMID: 37005489 PMCID: PMC10067937 DOI: 10.1038/s42003-023-04706-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Accepted: 03/14/2023] [Indexed: 04/04/2023] Open
Abstract
Two prominent concepts for the sensing of shear stress by endothelium are the PIEZO1 channel as a mediator of mechanically activated calcium ion entry and the PECAM1 cell adhesion molecule as the apex of a triad with CDH5 and VGFR2. Here, we investigated if there is a relationship. By inserting a non-disruptive tag in native PIEZO1 of mice, we reveal in situ overlap of PIEZO1 with PECAM1. Through reconstitution and high resolution microscopy studies we show that PECAM1 interacts with PIEZO1 and directs it to cell-cell junctions. PECAM1 extracellular N-terminus is critical in this, but a C-terminal intracellular domain linked to shear stress also contributes. CDH5 similarly drives PIEZO1 to junctions but unlike PECAM1 its interaction with PIEZO1 is dynamic, increasing with shear stress. PIEZO1 does not interact with VGFR2. PIEZO1 is required in Ca2+-dependent formation of adherens junctions and associated cytoskeleton, consistent with it conferring force-dependent Ca2+ entry for junctional remodelling. The data suggest a pool of PIEZO1 at cell junctions, the coming together of PIEZO1 and PECAM1 mechanisms and intimate cooperation of PIEZO1 and adhesion molecules in tailoring junctional structure to mechanical requirement.
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Affiliation(s)
| | | | | | - David J Carrier
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
- School of Biomedical Sciences, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Jian Shi
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Hannah J Gaunt
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | | | - Alistair Curd
- School of Molecular and Cellular Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - T Simon Futers
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Paul D Baxter
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Michelle Peckham
- School of Molecular and Cellular Biology, University of Leeds, Leeds, LS2 9JT, UK
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - Stephen P Muench
- School of Biomedical Sciences, University of Leeds, Leeds, LS2 9JT, UK
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - Antony Adamson
- Faculty of Biology, Medicine and Health, University of Manchester, AV Hill Building, Manchester, M13 9PT, UK
| | - Neil Humphreys
- Faculty of Biology, Medicine and Health, University of Manchester, AV Hill Building, Manchester, M13 9PT, UK
| | - Sarka Tumova
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | - Robin S Bon
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
- Astbury Centre for Structural Molecular Biology, University of Leeds, Leeds, LS2 9JT, UK
| | - Richard Cubbon
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK
| | | | - David J Beech
- School of Medicine, University of Leeds, Leeds, LS2 9JT, UK.
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Zhang M, Xu S, Du C, Wang R, Han C, Che Y, Feng W, Wang C, Gao S, Zhao W. Novel PLCL nanofibrous/keratin hydrogel bilayer wound dressing for skin wound repair. Colloids Surf B Biointerfaces 2023; 222:113119. [PMID: 36621177 DOI: 10.1016/j.colsurfb.2022.113119] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 12/13/2022] [Accepted: 12/26/2022] [Indexed: 12/29/2022]
Abstract
In this study, a novel poly(L-lactate-caprolactone) copolymer (PLCL) nanofibrous/keratin hydrogel bilayer wound dressing loaded with fibroblast growth factor (FGF-2) was prepared by the low-pressure filtration-assisted method. The ability of the keratin hydrogel in the bilayer dressing to mimic the dermis and that of the nanofibrous PLCL to mimic the epidermis were discussed. Keratin hydrogel exhibited good porosity and maximum water absorption of 874.09%. Compared with that of the dressing prepared by the coating method, the interface of the bilayer dressing manufactured by the low-pressure filtration-assisted method (filtration time: 20 min) was tightly bonded, and its bilayer dressing interface could not be easily peeled off. The elastic modulus of hydrogel was about 44 kPa, which was similar to the elastic modulus of the dermis (2-80 kPa). Additionally, PLCL nanofibers had certain toughness and flexibility suitable for simulating the epidermal structures. In vitro studies showed that the bilayer dressing was biocompatible and biodegradable. In vivo studies indicated that PLCL/keratin-FGF-2 bilayer dressing could promote re-epithelialization, collagen deposition, skin appendages (hair follicles) regeneration, microangiogenesis construction, and adipose-derived stem cells (ADSCs) recruitment. The introduction of FGF-2 resulted in a better repair effect. The bilayer dressing also solved the problems of poor interface adhesion of hydrogel/electrospinning nanofibers. This paper also explored the preliminary role and mechanism of bilayer dressing in promoting skin healing, showing that its potential applications as a biomedical wound dressing in the field of skin tissue engineering.
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Affiliation(s)
- Miaomiao Zhang
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Shixin Xu
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Chen Du
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Ruoying Wang
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Cuicui Han
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Yongan Che
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Wei Feng
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Chengwei Wang
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Shan Gao
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China
| | - Wen Zhao
- Key Laboratory for Space Biosciences and Biotechnology, School of Life Sciences, Northwestern Polytechnical University, Xi'an, Shaanxi 710072, China.
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Biswas A, Singh SK, Kartha GM, Khurana S. Immuno-localization of definitive hematopoietic stem cells in the vascular niche of mouse fetal liver. STAR Protoc 2022; 3:101580. [PMID: 36223268 PMCID: PMC9576628 DOI: 10.1016/j.xpro.2022.101580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 04/27/2022] [Accepted: 06/28/2022] [Indexed: 11/27/2022] Open
Abstract
Understanding the murine fetal liver (FL) hematopoietic microenvironment, which promotes HSC proliferation, warrants identifying innate relationships between stem cells and the niche. An inclusive study of these cell associations remains elusive. Here, we optimized a protocol to immunolabel HSCs alongside the FL vasculature, a promising niche component. We provide a comprehensive plan from tissue processing, immunohistochemistry, and confocal microscopy, to three-dimensional distance analyses between HSCs and vasculature. This technique can be adapted for achieving congruous outcomes for other cell types. For complete details on the use and execution of this protocol, please refer to Biswas et al. (2020).
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Affiliation(s)
- Atreyi Biswas
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India.
| | - Shailendra Kumar Singh
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India
| | - Gayathri M Kartha
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India
| | - Satish Khurana
- Stem Cells and Development Lab, School of Biology, Indian Institute of Science Education and Research Thiruvananthapuram, Maruthamala Campus, Vithura, Kerala 695551, India.
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Oladejo M, Nguyen HM, Silwal A, Reese B, Paulishak W, Markiewski MM, Wood LM. Listeria-based immunotherapy directed against CD105 exerts anti-angiogenic and anti-tumor efficacy in renal cell carcinoma. Front Immunol 2022; 13:1038807. [PMID: 36439126 PMCID: PMC9692019 DOI: 10.3389/fimmu.2022.1038807] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 10/19/2022] [Indexed: 07/29/2023] Open
Abstract
Targeting tumor-associated angiogenesis is currently at the forefront of renal cell carcinoma (RCC) therapy, with sunitinib and bevacizumab leading to increased survival in patients with metastatic RCC (mRCC). However, resistance often occurs shortly after initiation of therapy, suggesting that targeting the tumor-associated vascular endothelium may not be sufficient to eradicate RCC. This study reports the therapeutic efficacy of a Listeria (Lm)-based vaccine encoding an antigenic fragment of CD105 (Lm-LLO-CD105A) that targets both RCC tumor cells and the tumor-associated vasculature. Lm-LLO-CD105A treatment reduced primary tumor growth in both subcutaneous and orthotopic models of murine RCC. The vaccine conferred anti-tumor immunity and remodeled the tumor microenvironment (TME), resulting in increased infiltration of polyfunctional CD8+ and CD4+ T cells and reduced infiltration of immunosuppressive cell types within the TME. We further provide evidence that the therapeutic efficacy of Lm-LLO-CD105A is mediated by CD8+ T cells and is dependent on the robust antigenic expression of CD105 by RCC tumor cells. The result from this study demonstrates the safety and promising therapeutic efficacy of targeting RCC-associated CD105 expression with Lm-based immunotherapy.
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20
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Zhou Z, Zheng J, Lin D, Xu R, Chen Y, Hu X. Exosomes derived from dental pulp stem cells accelerate cutaneous wound healing by enhancing angiogenesis via the Cdc42/p38 MAPK pathway. Int J Mol Med 2022; 50:143. [PMID: 36321793 PMCID: PMC9662140 DOI: 10.3892/ijmm.2022.5199] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 10/18/2022] [Indexed: 11/22/2022] Open
Abstract
Skin wound healing is a common challenging clinical issue which requires advanced treatment strategies. The present study investigated the therapeutic effects of exosomes derived from dental pulp stem cells (DPSC‑Exos) on cutaneous wound healing and the underlying mechanisms. The effects of DPSC‑Exos on cutaneous wound healing in mice were examined by measuring wound closure rates, and using histological and immunohistochemical analysis. A series of functional assays were performed to evaluate the effects of DPSC‑Exos on the angiogenic activities of human umbilical vein endothelial cells (HUVECs) <i>in vitro</i>. Tandem mass tag‑based quantitative proteomics analysis of DPSCs and DPSC‑Exos was performed. Gene Ontology and Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were used to evaluate the biological functions and pathways for the differentially expressed proteins in DPSC‑Exos. Western blot analysis was used to assess the protein levels of cell division control protein 42 (Cdc42) and p38 in DPSC‑Exos and in HUVECs subjected to DPSC‑Exos‑induced angiogenesis. SB203580, a p38 mitogen‑activated protein kinase (MAPK) signaling pathway inhibitor, was employed to verify the role of the p38 MAPK pathway <i>in vitro</i> and <i>in vivo</i>. Histological and immunohistochemical staining revealed that the DPSC‑Exos accelerated wound healing by promoting neovascularization. The DPSC‑Exos promoted the migration, proliferation and capillary formation capacity of HUVECs. Proteomics data demonstrated that proteins contained in DPSC‑Exos regulated vasculature development and angiogenesis. Pathway analysis revealed that proteins expressed in DPSC‑Exos were involved in several pathways, including MAPK pathway. Western blot analysis demonstrated that the DPSC‑Exos increased the protein levels of Cdc42 and phosphorylation of p38 in HUVECs. SB203580 suppressed the angiogenesis induced by DPSC‑Exos. On the whole, the present study demonstrates that DPSC‑Exos accelerate cutaneous wound healing by enhancing the angiogenic properties of HUVECs via the Cdc42/p38 MAPK signaling pathway.
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Affiliation(s)
| | - Jianmao Zheng
- Correspondence to: Dr Jianmao Zheng or Professor Xiaoli Hu, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong 510055, P.R. China, E-mail: , E-mail:
| | | | | | | | - Xiaoli Hu
- Correspondence to: Dr Jianmao Zheng or Professor Xiaoli Hu, Department of Operative Dentistry and Endodontics, Guanghua School of Stomatology, Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Sun Yat-sen University, 56 Lingyuan West Road, Guangzhou, Guangdong 510055, P.R. China, E-mail: , E-mail:
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21
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Zheng W, Bai Z, Huang S, Jiang K, Liu L, Wang X. The Effect of Angiogenesis-Based Scaffold of MesoporousBioactive Glass Nanofiber on Osteogenesis. Int J Mol Sci 2022; 23:12670. [PMID: 36293527 PMCID: PMC9604128 DOI: 10.3390/ijms232012670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/17/2022] [Accepted: 10/19/2022] [Indexed: 11/23/2022] Open
Abstract
There is still an urgent need for more efficient biological scaffolds to promote the healing of bone defects. Vessels can accelerate bone growth and regeneration by transporting nutrients, which is an excellent method to jointly increase osteogenesis and angiogenesis in bone regeneration. Therefore, we aimed to prepare a composite scaffold that could promote osteogenesis with angiogenesis to enhance bone defect repair. Here, we report that scaffolds were prepared by coaxial electrospinning with mesoporous bioactive glass modified with amino (MBG-NH2) adsorbing insulin-like growth factor-1 (IGF-1) as the core and silk fibroin (SF) adsorbing vascular endothelial growth factor (VEGF) as the shell. These scaffolds were named MBG-NH2/IGF@SF/VEGF and might be used as repair materials to promote bone defect repair. Interestingly, we found that the MBG-NH2/IGF@SF/VEGF scaffolds had nano-scale morphology and high porosity, as well as enough mechanical strength to support the tissue. Moreover, MBG-NH2 could sustain the release of IGF-1 to achieve long-term repair. Additionally, the MBG-NH2/IGF@SF/VEGF scaffolds could significantly promote the mRNA expression levels of osteogenic marker genes and the protein expression levels of Bmp2 and Runx2 in bone marrow mesenchymal stem cells (BMSCs). Meanwhile, the MBG-NH2/IGF@SF/VEGF scaffolds promoted osteogenesis by simulating Runx2 transcription activity through the phosphorylated Erk1/2-activated pathway. Intriguingly, the MBG-NH2/IGF@SF/VEGF scaffolds could also significantly promote the mRNA expression level of angiogenesis marker genes and the protein expression level of CD31. Furthermore, RNA sequencing verified that the MBG-NH2/IGF@SF/VEGF scaffolds had excellent performance in promoting bone defect repair and angiogenesis. Consistent with these observations, we found that the MBG-NH2/IGF@SF/VEGF scaffolds demonstrated a good repair effect on a critical skull defect in mice in vivo, which not only promoted the formation of blood vessels in the haversian canal but also accelerated the bone repair process. We concluded that these MBG-NH2/IGF@SF/VEGF scaffolds could promote bone defect repair under accelerating angiogenesis. Our finding provides a new potential biomaterial for bone tissue engineering.
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Affiliation(s)
| | | | | | | | - Long Liu
- Department of Biology and Chemistry, College of Science, National University of Defense Technology, Changsha 410073, China
| | - Xiaoyan Wang
- Correspondence: (L.L.); (X.W.); Tel.: +86-0731-8700-1351 (X.W.); Fax: +86-0731-8700-1040 (X.W.)
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22
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Wu Y, Yao Y, Zhang J, Gui H, Liu J, Liu J. Tumor-Targeted Injectable Double-Network Hydrogel for Prevention of Breast Cancer Recurrence and Wound Infection via Synergistic Photothermal and Brachytherapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2200681. [PMID: 35751467 PMCID: PMC9403641 DOI: 10.1002/advs.202200681] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 06/01/2022] [Indexed: 05/15/2023]
Abstract
The high locoregional recurrence rate and potential wound infection in breast cancer after surgery pose enormous risks to patient survival. In this study, a polyethylene glycol acrylate (PEGDA)-alginate double-network nanocomposite hydrogel (GPA) embedded with 125 I-labeled RGDY peptide-modified gold nanorods (125 I-GNR-RGDY) is fabricated. The double-network hydrogel is formed by injection of GPA precursor solutions into the cavity of resected cancerous breasts of mice where gelation occurred rapidly. The enhanced temperature-induced PEGDA polymerization driven by near-infrared light irradiation, and then, the second polymer network is crosslinked between alginate and endogenous Ca2+ around the tumor. The double-network hydrogel possesses a dense polymer network and tightly fixes 125 I-GNR-RGDY, which exhibit superior persistent photothermal and radioactive effects. Hyperthermia induced by photothermal therapy can inhibit self-repair of damaged DNA and promote blood circulation to improve the hypoxic microenvironment, which can synergistically enhance the therapeutic efficacy of brachytherapy and simultaneously eliminate pathogenic bacteria. Notably, this nanocomposite hydrogel facilitates antibacterial activity to prevent potential wound infection and is tracked by single-photon emission computerized tomography imaging owing to isotope labeling of loaded 125 I-GNR-RGDY. The combination of photothermal therapy and brachytherapy has enabled the possibility of proposing a novel postoperative adjuvant strategy for preventing tumor recurrence and wound infection.
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Affiliation(s)
- Yuanhao Wu
- Key Laboratory of Radiopharmacokinetics for Innovative DrugsChinese Academy of Medical Sciencesand Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300192China
| | - Yuan Yao
- Lab of Functional and Biomedical NanomaterialsCollege of Materials Science and EngineeringQingdao University of Science and TechnologyQingdao266042China
| | - Jiamin Zhang
- Key Laboratory of Radiopharmacokinetics for Innovative DrugsChinese Academy of Medical Sciencesand Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300192China
| | - Han Gui
- Key Laboratory of Radiopharmacokinetics for Innovative DrugsChinese Academy of Medical Sciencesand Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300192China
| | - Jinjian Liu
- Key Laboratory of Radiopharmacokinetics for Innovative DrugsChinese Academy of Medical Sciencesand Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300192China
| | - Jianfeng Liu
- Key Laboratory of Radiopharmacokinetics for Innovative DrugsChinese Academy of Medical Sciencesand Institute of Radiation MedicineChinese Academy of Medical Sciences & Peking Union Medical CollegeTianjin300192China
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23
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Critical Role of Neuronal Vps35 in Blood Vessel Branching and Maturation in Developing Mouse Brain. Biomedicines 2022; 10:biomedicines10071653. [PMID: 35884959 PMCID: PMC9313219 DOI: 10.3390/biomedicines10071653] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Revised: 07/05/2022] [Accepted: 07/07/2022] [Indexed: 11/17/2022] Open
Abstract
Vps35 (vacuolar protein sorting 35), a key component of retromer, plays a crucial role in selective retrieval of transmembrane proteins from endosomes to trans-Golgi networks. Dysfunctional Vps35/retromer is a risk factor for the development of neurodegenerative diseases. Vps35 is highly expressed in developing pyramidal neurons, both in the mouse neocortex and hippocampus, Although embryonic neuronal Vps35’s function in promoting neuronal terminal differentiation and survival is evident, it remains unclear whether and how neuronal Vps35 communicates with other types of brain cells, such as blood vessels (BVs), which are essential for supplying nutrients to neurons. Dysfunctional BVs contribute to the pathogenesis of various neurodegenerative disorders. Here, we provide evidence for embryonic neuronal Vps35 as critical for BV branching and maturation in the developing mouse brain. Selectively knocking out (KO) Vps35 in mouse embryonic, not postnatal, neurons results in reductions in BV branching and density, arteriole diameter, and BV-associated pericytes and microglia but an increase in BV-associated reactive astrocytes. Deletion of microglia by PLX3397 enhances these BV deficits in mutant mice. These results reveal the function of neuronal Vps35 in neurovascular coupling in the developing mouse brain and implicate BV-associated microglia as underlying this event.
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24
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Markov AG, Bikmurzina AE, Fedorova AA, Krivoi II. Methyl-beta-Cyclodextrin Alters the Level of Tight Junction Proteins in the Rat Cerebrovascular Endothelium. J EVOL BIOCHEM PHYS+ 2022. [DOI: 10.1134/s0022093022030188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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25
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Deng Y, Yang C, Zhu Y, Liu W, Li H, Wang L, Chen W, Wang Z, Wang L. Lamprey-Teeth-Inspired Oriented Antibacterial Sericin Microneedles for Infected Wound Healing Improvement. NANO LETTERS 2022; 22:2702-2711. [PMID: 35324204 DOI: 10.1021/acs.nanolett.1c04573] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The therapeutic efficacy of wound infections caused by bacteria is challenged by limited wound repairs and a high risk of inflammation. Microneedles have been generated for wound healing since they are able to efficiently pierce the epidermis and deliver drugs. However, regular microneedles cannot provide oriented traction to "shrink" the wound area, and most microneedles are made of inert polymers, which mainly serve as a support but rarely participate in the following physiological processes. Herein, inspired by lamprey teeth, we designed oriented antibacterial sericin microneedles with dually functionalized needles to provide penetration and directional traction. Sericin, derived from silkworm cocoons, was employed to fabricate microneedle tips, significantly improving skin repair via hair follicle regeneration and angiogenesis. Besides, zinc oxide nanoparticles were integrated as an antibacterial module, endowing the OASM with high bacterial suppression. It is believed that the synergy of these systems may effectively heal infected wounds, suggesting its clinically translational potential.
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26
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Chmielowiec J, Szlachcic WJ, Yang D, Scavuzzo MA, Wamble K, Sarrion-Perdigones A, Sabek OM, Venken KJT, Borowiak M. Human pancreatic microenvironment promotes β-cell differentiation via non-canonical WNT5A/JNK and BMP signaling. Nat Commun 2022; 13:1952. [PMID: 35414140 PMCID: PMC9005503 DOI: 10.1038/s41467-022-29646-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 03/21/2022] [Indexed: 12/24/2022] Open
Abstract
In vitro derivation of pancreatic β-cells from human pluripotent stem cells holds promise as diabetes treatment. Despite recent progress, efforts to generate physiologically competent β-cells are still hindered by incomplete understanding of the microenvironment's role in β-cell development and maturation. Here, we analyze the human mesenchymal and endothelial primary cells from weeks 9-20 fetal pancreas and identify a time point-specific microenvironment that permits β-cell differentiation. Further, we uncover unique factors that guide in vitro development of endocrine progenitors, with WNT5A markedly improving human β-cell differentiation. WNT5A initially acts through the non-canonical (JNK/c-JUN) WNT signaling and cooperates with Gremlin1 to inhibit the BMP pathway during β-cell maturation. Interestingly, we also identify the endothelial-derived Endocan as a SST+ cell promoting factor. Overall, our study shows that the pancreatic microenvironment-derived factors can mimic in vivo conditions in an in vitro system to generate bona fide β-cells for translational applications.
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Affiliation(s)
- Jolanta Chmielowiec
- Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Wojciech J Szlachcic
- Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, ul. Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland
| | - Diane Yang
- Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Marissa A Scavuzzo
- Program in Developmental Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Katrina Wamble
- Stem Cell and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Alejandro Sarrion-Perdigones
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Omaima M Sabek
- Department of Surgery, The Methodist Hospital, Houston, TX, USA.,Weill Cornell Medical College, New York, NY, USA
| | - Koen J T Venken
- Verna and Marrs McLean Department of Biochemistry and Molecular Biology, Baylor College of Medicine, Houston, TX, 77030, USA.,McNair Medical Institute, Baylor College of Medicine, Houston, TX, 77030, USA
| | - Malgorzata Borowiak
- Molecular and Cellular Biology Department, Baylor College of Medicine, Houston, TX, 77030, USA. .,Institute of Molecular Biology and Biotechnology, Adam Mickiewicz University, ul. Uniwersytetu Poznanskiego 6, 61-614, Poznan, Poland. .,Program in Developmental Biology, Baylor College of Medicine, Houston, TX, 77030, USA. .,Stem Cell and Regenerative Medicine Center, Baylor College of Medicine, Houston, TX, 77030, USA. .,McNair Medical Institute, Baylor College of Medicine, Houston, TX, 77030, USA.
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27
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Sato D, Kadota T, Inaba A, Nishihara K, Takashima K, Nakajo K, Sawada K, Kotani D, Fujiwara H, Yoda Y, Kojima T, Fujita T, Fujii S, Yano T. Long-term clinical outcome after endoscopic resection of esophageal squamous cell carcinoma invading the muscularis mucosae without lymphovascular invasion. Gastrointest Endosc 2022; 95:634-641.e3. [PMID: 34774578 DOI: 10.1016/j.gie.2021.11.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Accepted: 11/02/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND AND AIMS Lymph node recurrence (LNR) after endoscopic resection (ER) in patients with esophageal squamous cell carcinoma (ESCC) pathologically invading the muscularis mucosae (pMM) without lymphovascular invasion (LVI) has been reported as non-negligible in the ER guidelines for esophageal cancer by the Japan Gastroenterological Endoscopy Society. However, these data were not regarded as high-level evidence because several retrospective case series were tabulated without sufficient long-term follow-up. Hence, this guideline stated that the administration of additional treatment after ER could not be determined for this population. This study aimed to clarify the long-term clinical outcomes after ER of pMM ESCC without LVI. METHODS Between January 2009 and November 2017, we enrolled followed patients who underwent ER and were diagnosed with pMM ESCC without LVI with no additional treatments. We retrospectively investigated the cumulative recurrence rate and recurrence-free, overall, and disease-specific survival at 5 years after ER. RESULTS Eighty-seven patients were enrolled. During the median follow-up period of 64 months (range, 12-117), 3 patients developed lymph node and/or distant recurrence, and 2 of these cases occurred more than 3 years after ER; all 3 patients died of the primary disease. The 5-year cumulative recurrence rate was 4.3%, and the 5-year recurrence-free, disease-specific, and overall survival rates were 88.8%, 98.2%, and 91.7%, respectively. CONCLUSIONS The long-term outcome for patients with pMM ESCC without LVI was favorable after ER; however, this population had a risk of recurrence directly leading to death. Long-term follow-up is necessary, with attention to the timing of recurrence.
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Affiliation(s)
- Daiki Sato
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan; Department of Gastroenterology, Saitama Cancer Center, Saitama, Japan
| | - Tomohiro Kadota
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Atsushi Inaba
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Keiichiro Nishihara
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kenji Takashima
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Keiichiro Nakajo
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Kentaro Sawada
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Daisuke Kotani
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Hisashi Fujiwara
- Department of Esophageal Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Yusuke Yoda
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
| | - Takashi Kojima
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Takeo Fujita
- Department of Esophageal Surgery, National Cancer Center Hospital East, Kashiwa, Japan
| | - Satoshi Fujii
- Division of Pathology, Exploratory Oncology Research and Clinical Trial Center, National Cancer Center, Kashiwa, Japan; Department of Molecular Pathology, Yokohama City University Graduate School of Medicine, Yokohama, Japan
| | - Tomonori Yano
- Department of Gastroenterology and Endoscopy, National Cancer Center Hospital East, Kashiwa, Japan
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28
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Li L, Cao S, Wu Z, Guo R, Xie L, Wang L, Tang Y, Li Q, Luo X, Ma L, Cheng C, Qiu L. Modulating Electron Transfer in Vanadium-Based Artificial Enzymes for Enhanced ROS-Catalysis and Disinfection. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2108646. [PMID: 35181946 DOI: 10.1002/adma.202108646] [Citation(s) in RCA: 41] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/12/2022] [Indexed: 02/05/2023]
Abstract
Nanomaterials-based artificial enzymes (AEs) have flourished for more than a decade. However, it is still challenging to further enhance their biocatalytic performances due to the limited strategies to tune the electronic structures of active centers. Here, a new path is reported for the de novo design of the d electrons of active centers by modulating the electron transfer in vanadium-based AEs (VOx -AE) via a unique Zn-O-V bridge for efficient reactive oxygen species (ROS)-catalysis. Benefiting from the electron transfer from Zn to V, the V site in VOx -AE exhibits a lower valence state than that in V2 O5 , which results in charge-filled V-dyz orbital near the Fermi level to interfere with the formation of sigma bonds between the V- d z 2 and O-pz orbitals in H2 O2 . The VOx -AE exhibits a twofold Vmax and threefold turnover number than V2 O5 when catalyzing H2 O2 . Meanwhile, the VOx -AE shows enhanced catalytic eradication of drug-resistant bacteria and achieves comparable wound-treatment indexes to vancomycin. This modulating charge-filling of d electrons provides a new direction for the de novo design of nanomaterials-based AEs and deepens the understanding of ROS-catalysis.
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Affiliation(s)
- Ling Li
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
- Department of Ultrasound Affiliated Hospital of North Sichuan Medical College Nanchong 637000 China
| | - Sujiao Cao
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Zihe Wu
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Ruiqian Guo
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Lan Xie
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Liyun Wang
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Yuanjiao Tang
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Qi Li
- The First Affiliated Hospital of Hainan Medical University Hainan 570102 China
| | - Xianglin Luo
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Lang Ma
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
| | - Chong Cheng
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
- State Key Laboratory of Polymer Materials Engineering Sichuan University Chengdu 610065 China
| | - Li Qiu
- Department of Ultrasound College of Polymer Science and Engineering National Clinical Research Center for Geriatrics Med‐X Center for Materials West China Hospital Sichuan University Chengdu 610041 China
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29
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Wang P, Meng X, Wang R, Yang W, Yang L, Wang J, Wang DA, Fan C. Biomaterial Scaffolds Made of Chemically Cross-Linked Gelatin Microsphere Aggregates (C-GMSs) Promote Vascularized Bone Regeneration. Adv Healthc Mater 2022; 11:e2102818. [PMID: 35306762 DOI: 10.1002/adhm.202102818] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 02/09/2022] [Indexed: 12/14/2022]
Abstract
Various scaffolding systems have been attempted to facilitate vascularization in tissue engineering by optimizing biophysical properties (e.g., vascular-like structures, porous architectures, surface topographies) or loading biochemical factors (e.g., growth factors, hormones). However, vascularization during ossification remains an unmet challenge that hampers the repair of large bone defects. In this study, reconstructing vascularized bones in situ against critical-sized bone defects is endeavored using newly developed scaffolds made of chemically cross-linked gelatin microsphere aggregates (C-GMSs). The rationale of this design lies in the creation and optimization of cell-material interfaces to enhance focal adhesion, proliferation, and function of anchorage-dependent functional cells. In vitro trials are carried out by coculturing human aortic endothelial cells (HAECs) and murine osteoblast precursor cells (MC3T3-E1) within C-GMS scaffolds, in which endothelialized bone-like constructs are yielded. Angiogenesis and osteogenesis induced by C-GMSs scaffold are further confirmed via subcutaneous-embedding trials in nude mice. In situ trials for the repair of critical-sized femoral defects are subsequently performed in rats. The acellular C-GMSs with interconnected macropores, exhibit the capability to recruit the endogenous cells (e.g., bone-forming cells, vascular forming cells, immunocytes) and then promote vascularized bone regeneration as well as integration with host bone.
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Affiliation(s)
- Peiyan Wang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Xinyue Meng
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Runze Wang
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Wei Yang
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Lanting Yang
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Jianxun Wang
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
| | - Dong-An Wang
- Department of Biomedical Engineering, City University of Hong Kong, Kowloon, Hong Kong, 999077, P. R. China
- Shenzhen Research Institute, City University of Hong Kong, Shenzhen, 518057, P. R. China
| | - Changjiang Fan
- Institute for Translational Medicine, The Affiliated Hospital of Qingdao University, College of Medicine, Qingdao University, Qingdao, Shandong, 266021, P. R. China
- School of Basic Medicine, College of Medicine, Qingdao University, Qingdao, Shandong, 266071, P. R. China
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30
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Liao D, Sundlov J, Zhu J, Mei H, Hu Y, Newman DK, Newman PJ. Atomic Level Dissection of the Platelet Endothelial Cell Adhesion Molecule 1 (PECAM-1) Homophilic Binding Interface: Implications for Endothelial Cell Barrier Function. Arterioscler Thromb Vasc Biol 2022; 42:193-204. [PMID: 34937389 PMCID: PMC8942131 DOI: 10.1161/atvbaha.121.316668] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE PECAM-1 (platelet endothelial cell adhesion molecule 1) is a 130 kDa member of the immunoglobulin (Ig) gene superfamily that is expressed on the surfaces of platelets and leukocytes and concentrated at the intercellular junctions of confluent endothelial cell monolayers. PECAM-1 Ig domains 1 and 2 (IgD1 and IgD2) engage in homophilic interactions that support a host of vascular functions, including support of leukocyte transendothelial migration and the maintenance of endothelial junctional integrity. The recently solved crystal structure of PECAM-1 IgD1 and IgD2 revealed a number of intermolecular interfaces predicted to play important roles in stabilizing PECAM-1/PECAM-1 homophilic interactions and in formation and maintenance of endothelial cell-cell contacts. We sought to determine whether the protein interfaces implicated in the crystal structure reflect physiologically important interactions. Approach and Results: We assessed the impact of single amino acid substitutions at the interfaces between opposing PECAM-1 molecules on homophilic binding and endothelial cell function. Substitution of key residues within the IgD1-IgD1 and IgD1-IgD2 interfaces but not those within the smaller IgD2-IgD2 interface, markedly disrupted PECAM-1 homophilic binding and its downstream effector functions, including the ability of PECAM-1 to localize at endothelial cell-cell borders, mediate the formation of endothelial tubes, and restore endothelial barrier integrity. CONCLUSIONS Taken together, these results validate the recently described PECAM-1 IgD1/IgD2 crystal structure by demonstrating that specific residues visualized within the IgD1-IgD1 and IgD1-IgD2 interfaces of opposing molecules in the crystal are required for functionally important homophilic interactions. This information can now be exploited to modulate functions of PECAM-1 in vivo.
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Affiliation(s)
- Danying Liao
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI,Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jesse Sundlov
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI
| | - Jieqing Zhu
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI,Department of Biochemistry, Medical College of Wisconsin, Milwaukee
| | - Heng Mei
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Yu Hu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Debra K. Newman
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI,Department of Pharmacology, Medical College of Wisconsin, Milwaukee,Department of Microbiology Medical College of Wisconsin, Milwaukee,Department of The Cardiovascular Center, Medical College of Wisconsin, Milwaukee
| | - Peter J. Newman
- Blood Research Institute, Versiti Blood Center of Wisconsin, Milwaukee, WI,Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China,Department of Pharmacology, Medical College of Wisconsin, Milwaukee,Department of Cell Biology, Neurobiology and Anatomy, Medical College of Wisconsin, Milwaukee,Department of The Cardiovascular Center, Medical College of Wisconsin, Milwaukee
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31
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Distinctive Properties of Endothelial Cells from Tumor and Normal Tissue in Human Breast Cancer. Int J Mol Sci 2021; 22:ijms22168862. [PMID: 34445568 PMCID: PMC8396343 DOI: 10.3390/ijms22168862] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 08/05/2021] [Accepted: 08/12/2021] [Indexed: 02/06/2023] Open
Abstract
Tumor microenvironments shape aggressiveness and are largely maintained by the conditions of angiogenesis formation. Thus, endothelial cells’ (ECs) biological reactions are crucial to understand and control the design of efficient therapies. In this work, we used models of ECs to represent a breast cancer tumor site as well as the same, healthy tissue. Cells characterization was performed at the transcriptome and protein expression levels, and the cells functional biological responses (angiogenesis and permeability) were assessed. We showed that the expression of proteins specific to ECs (ACE+, VWF+), their differentiation (CD31+, CD 133+, CD105+, CD34-), their adhesion properties (ICAM-1+, VCAM-1+, CD62-L+), and their barrier formation (ZO-1+) were all downregulated in tumor-derived ECs. NGS-based differential transcriptome analysis confirmed CD31-lowered expression and pointed to the increase of Ephrin-B2 and SNCAIP, indicative of dedifferentiation. Functional assays confirmed these differences; angiogenesis was impaired while permeability increased in tumor-derived ECs, as further validated by the distinctly enhanced VEGF production in response to hypoxia, reflecting the tumor conditions. This work showed that endothelial cells differed highly significantly, both phenotypically and functionally, in the tumor site as compared to the normal corresponding tissue, thus influencing the tumor microenvironment.
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Sharma P, Sachdeva MUS, Kumar N, Bose S, Bose P, Uppal V, Malhotra P, Bansal D, Varma N, Ahluwalia J. A comparative study between light transmission aggregometry and flow cytometric platelet aggregation test for the identification of platelet function defects in patients with bleeding. Blood Res 2021; 56:109-118. [PMID: 34187944 PMCID: PMC8246037 DOI: 10.5045/br.2021.2020232] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 06/10/2021] [Accepted: 06/18/2021] [Indexed: 11/30/2022] Open
Abstract
Background Platelet aggregation studies using conventional light transmission aggregometry (LTA) have several disadvantages and require strict pre-analytical measures for reliable results. We aimed to examine the utility of flow cytometric platelet aggregation (FCA) assay in detecting platelet function defects (PFDs) in patients with a history of bleeding symptoms. Methods Sixty-four participants (24 patients and 40 healthy controls) were included in this study. LTA and FCA assay were performed simultaneously in patients and healthy controls. In the FCA assay, two portions of platelets from the same individual were labeled separately with CD31-FITC and CD31-PE. After mixing and stimulation with agonists, the double-colored platelet aggregates were visualized using a flow cytometer. The results generated using the two techniques were compared and correlated. Results The patients’ median age was 17 years (range, 3‒72 yr) with a male-to-female ratio of 11.7. There was substantial agreement between LTA and FCA assay in detecting a PFD (k=0.792). Four patients showing a Glanzmann thrombasthenia-like pattern on LTA exhibited an abnormal FCA. A functional defect in collagen binding was detected on the FCA assay conducted in two immune thrombocytopenic patients with severe bleeding. Conclusion FCA assay can be used to identify functional defects in platelets, with potential applications in thrombocytopenic individuals. It also facilitates the diagnosis of inherited bleeding disorders with platelet defects.
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Affiliation(s)
- Praveen Sharma
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Man Updesh Singh Sachdeva
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Narender Kumar
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Sunil Bose
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Parveen Bose
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Varun Uppal
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Pankaj Malhotra
- Clinical Hematology Division, Department of Internal Medicine, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Deepak Bansal
- Pediatric Hematology-Oncology Division, Department of Pediatrics, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Neelam Varma
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
| | - Jasmina Ahluwalia
- Department of Hematology, Advanced Pediatric Centre, Postgraduate Institute of Medical Education and Research, Chandigarh, India
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Eshaq RS, Harris NR. The role of tumor necrosis factor-α and interferon-γ in the hyperglycemia-induced ubiquitination and loss of platelet endothelial cell adhesion molecule-1 in rat retinal endothelial cells. Microcirculation 2021; 28:e12717. [PMID: 34008903 PMCID: PMC10078990 DOI: 10.1111/micc.12717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 05/03/2021] [Accepted: 05/11/2021] [Indexed: 11/25/2022]
Abstract
OBJECTIVE This study aimed to investigate the role of the hyperglycemia-induced increase in tumor necrosis factor-α (TNF-α) and interferon-γ (IFN-γ) in the ubiquitination and degradation of platelet endothelial cell adhesion molecule-1 (PECAM-1) in the diabetic retina. METHODS Type I diabetes was induced in rats by the injection of streptozotocin, with age-matched non-diabetic rats as controls. Primary rat retinal microvascular endothelial cells were grown in normal or high glucose media for 6 days or in normal glucose media for 24 h with addition of TNF-α and/or IFN-γ. PECAM-1, TNF-α, IFN-γ, and ubiquitin levels were assessed using Western blotting, immunofluorescence, and immunoprecipitation assays. Additionally, proteasome activity was assessed both in vivo and in vitro. RESULTS Under hyperglycemic conditions, total ubiquitination levels in the retina and RRMECs, and PECAM-1 ubiquitination levels in RRMECs, were significantly increased. Additionally, TNF-α and IFN-γ levels were significantly increased under hyperglycemic conditions. PECAM-1 levels in RRMECs treated with TNF-α and/or IFN-γ were significantly decreased. Moreover, there was a significant decrease in proteasome activity in the diabetic retina, hyperglycemic RRMECs, and RRMECs treated with TNF-α or IFN-γ. CONCLUSION Tumor necrosis factor-α and IFN-γ may contribute to the hyperglycemia-induced loss of PECAM-1 in retinal endothelial cells, possibly by upregulating PECAM-1 ubiquitination.
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Affiliation(s)
- Randa S Eshaq
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, USA
| | - Norman R Harris
- Department of Molecular and Cellular Physiology, Louisiana State University Health Sciences Center-Shreveport, Shreveport, LA, USA
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Zhou L, Zheng H, Liu Z, Wang S, Liu Z, Chen F, Zhang H, Kong J, Zhou F, Zhang Q. Conductive Antibacterial Hemostatic Multifunctional Scaffolds Based on Ti 3C 2T x MXene Nanosheets for Promoting Multidrug-Resistant Bacteria-Infected Wound Healing. ACS NANO 2021; 15:2468-2480. [PMID: 33565857 DOI: 10.1021/acsnano.0c06287] [Citation(s) in RCA: 145] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
Chronic bacterial-infected wound healing/skin regeneration remains a challenge due to drug resistance and the poor quality of wound repair. The ideal strategy is combating bacterial infection, while facilitating satisfactory wound healing. However, the reported strategy hardly achieves these two goals simultaneously without the help of antibiotics or bioactive molecules. In this work, a two-dimensional (2D) Ti3C2Tx MXene with excellent conductivity, biocompatibility, and antibacterial ability was applied in developing multifunctional scaffolds (HPEM) for methicillin-resistant Staphylococcus aureus (MRSA)-infected wound healing. HPEM scaffolds were fabricated by the reaction between the poly(glycerol-ethylenimine), Ti3C2Tx MXene@polydopamine (MXene@PDA) nanosheets, and oxidized hyaluronic acid (HCHO). HPEM scaffolds presented multifunctional properties containing self-healing behavior, electrical conductivity, tissue-adhesive feature, antibacterial activity especially for MRSA resistant to many commonly used antibiotics (antibacterial efficiency was 99.03%), and rapid hemostatic capability. HPEM scaffolds enhanced the proliferation of normal skin cells with negligible toxicity. Additionally, HPEM scaffolds obviously accelerated the MRSA-infected wound healing (wound closure ratio was 96.31%) by efficient anti-inflammation effects, promoting cell proliferation, and the angiogenic process, stimulating granulation tissue formation, collagen deposition, vascular endothelial differentiation, and angiogenesis. This study indicates the important role of multifunctional 2D MXene@PDA nanosheets in infected wound healing. HPEM scaffolds with multifunctional properties provide a potential strategy for MRSA-infected wound healing/skin regeneration.
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Affiliation(s)
- Li Zhou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- State Key Laboratory of Military Stomatology, School of Stomatology, The Fourth Military Medical University, Xi'an 710032, China
| | - Hua Zheng
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Zongxu Liu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Shenqiang Wang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Zhao Liu
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Fang Chen
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Hepeng Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
| | - Jie Kong
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Fengtao Zhou
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
| | - Qiuyu Zhang
- Key Laboratory of Special Functional and Smart Polymer Materials of Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
- Research and Development Institute of Northwestern Polytechnical University in Shenzhen, Shenzhen 518057, China
- Xi'an Key Laboratory of Functional Organic Porous Materials, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi'an 710129, China
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Expression and enhancement of FABP4 in septoclasts of the growth plate in FABP5-deficient mouse tibiae. Histochem Cell Biol 2021; 155:439-449. [PMID: 33398436 PMCID: PMC8062382 DOI: 10.1007/s00418-020-01953-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/02/2020] [Indexed: 01/13/2023]
Abstract
In our previous study, fatty acid-binding protein 5 (FABP5) was expressed in septoclasts with long processes which are considered to resorb uncalcified matrix of the growth plate (GP) cartilage, and no apparent abnormalities were detected in the histo-architecture of the GP of FABP5-deficient (FABP5−/−) mice. Those finding lead us to hypothesize that another FABP can compensate the deletion of FABP5 in septoclasts of its gene-mutant mice. Based on the hypothesis, the present study examined the expression levels of several other FABPs in septoclasts and their morphology in FABP5−/− mouse tibiae. Processes of FABP5−/− septoclasts tend to be shorter than wild septoclasts. FABP4-positive septoclasts in FABP5−/− mice were more numerous than those cells in wild mice. Peroxisome proliferator-activated receptor (PPAR) γ was expressed in FABP4-positive septoclasts of FABP5−/− mice as well as mice administered with GW1929, a PPARγ agonist, suggesting that the occurrence of PPARγ induces an increase of FABP4-positive septoclasts. The present finding suggests that the functional exertion of FABP5 in septoclasts is supplemented by FABP4 in normal and FABP5−/− mice, and that the expression of FABP4 is up-regulated in accompany with PPARγ in FABP5−/− for maintenance of resorptive activity in the GP.
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Siggel R, Schroedl F, Dietlein T, Koch KR, Platzl C, Kaser-Eichberger A, Cursiefen C, Heindl LM. Absence of lymphatic vessels in non-functioning bleb capsules of glaucoma drainage devices. Histol Histopathol 2021; 35:1521-1531. [PMID: 33382078 DOI: 10.14670/hh-18-300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE To evaluate the presence and appearance of blood and lymphatic vessels in non-functioning bleb capsules of glaucoma drainage devices (GDD). MATERIALS AND METHODS Non-functioning (n=14) GDD-bleb capsules of 12 patients were analyzed by immunohistochemistry for blood vessels (CD31, vascular endothelium), lymphatic vessels (lymphatic vessel endothelial hyaluronan receptor-1 [LYVE-1] and podoplanin) and macrophages (CD68). RESULTS CD31+++ blood vessels and CD68+ macrophages were detected in the outer layer of all specimens. LYVE-1 immunoreactivity was registered in single non-endothelial cells in 8 out of 14 (57%) bleb capsule specimens. Podoplanin-immunoreactivity was detected in all cases, located in cells and profiles of the collagen tissue network of the outer and/or the inner capsule layer. However, a colocalization of LYVE-1 and podoplanin as evidence for lymphatic vessels was not detected. CONCLUSIONS We demonstrate the presence of blood-vessels but absence of lymphatic vessels in non-functioning bleb capsules after GDD-implantation. While the absence of lymphatic vessels might indicate a possible reason for drainage device failure, this needs to be confirmed in upcoming studies, including animal experiments.
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Affiliation(s)
- Robert Siggel
- Department of Ophthalmology, University of Cologne, Cologne, Germany.,Department of Ophthalmology, HELIOS University Hospital Wuppertal, University Witten/Herdecke, Germany.
| | - Falk Schroedl
- Institute of Anatomy and Cell Biology, Paracelsus Medical University, Salzburg, Austria
| | - Thomas Dietlein
- Department of Ophthalmology, University of Cologne, Cologne, Germany
| | - Konrad R Koch
- Department of Ophthalmology, University of Cologne, Cologne, Germany
| | - Christian Platzl
- Institute of Anatomy and Cell Biology, Paracelsus Medical University, Salzburg, Austria
| | | | - Claus Cursiefen
- Department of Ophthalmology, University of Cologne, Cologne, Germany.,Center for Molecular Medicine Cologne (CMMK), University of Cologne, Cologne, Germany
| | - Ludwig M Heindl
- Department of Ophthalmology, University of Cologne, Cologne, Germany
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Arciniegas E, Carrillo LM, Rojas H, Pineda J, Ramírez R, Reyes O, Chopite M, Rocheta A. Plump endothelial cells integrated into pre-existing venules contribute to the formation of 'mother' and 'daughter' vessels in pyogenic granuloma: possible role of galectin-1, -3 and -8. Scars Burn Heal 2021; 7:2059513120986687. [PMID: 33796337 PMCID: PMC7841855 DOI: 10.1177/2059513120986687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
INTRODUCTION Pyogenic granuloma (PG) is a reactive inflammatory vascular lesion of the skin and mucous membranes, characterised by the presence of enlarged venules and seamed and seamless capillaries with plump endothelial cells (EC), and numerous macrophages. EC activation upregulates the synthesis of galectins and induces their translocation to the EC surface promoting angiogenesis and lymphangiogenesis, particularly galectin-1 (Gal-1), Gal-3 and Gal-8. However, the presence and distribution of Gal-1, -3 and -8, as well as their implications in the pathogenesis of PG, has not been considered. MATERIALS AND METHODS Eight biopsies from patients diagnosed with PG were selected. The presence of PECAM-1/CD31, IL-1β, VEGF-C, VEGFR-2, VEGFR-3, integrin β1, CD44, fibronectin and Gal-1, -3 and -8 was assessed by immunofluorescence staining using confocal laser scanning microscopy. RESULTS AND DISCUSSION Immunostaining revealed that these molecules were present in the enlarged venules with plump ECs, in some macrophages and other immune cells. We propose that macrophages release VEGF-A and VEGF-C inducing VEGFR-2/VEGFR-3 expression and activation, leading macrophages to transdifferentiate into plump ECs that might integrate into pre-existing venules, contributing to the formation of enlarged venules with transluminal bridges and capillaries. EC activation, induced by certain cytokines, has been shown to stimulate galectin expression and changes in the cellular localisation through association and activation of specific EC surface glycoproteins. Therefore, it is plausible that Gal-1, -3 and -8, acting in a concerted manner, could be mediating the transdifferentiation of macrophages into plump ECs and facilitating their migration and incorporation into the new vessels. LAY SUMMARY In this study, immunostaining of pyogenic granuloma (PG) tissue sections showed immunoreactivity for PECAM-1/CD31, IL-1β, VEGF-C, VEGFR-2 and VEGFR-3, and galectin-1, -3 and -8 in enlarged venules with plump endothelial cells (EC), as well as in some macrophages and other immune cells. Interestingly, enlarged and thin-walled transient vessels lined by PECAM-1/CD31 and VEGFR-2 immunopositive ECs that form from pre-existing normal venules in response to VEGF-A (called 'mother' vessels [MV]) and that undergo intraluminal bridging evolving into various types of capillaries (called 'daughter' vessels [DV]) have been observed in benign and malignant tumours, in physiological and pathological angiogenesis as well as in vascular malformations, suggesting an important role for VEGF-A and VEGFR-2 in such a process. However, it is not only the mechanisms by which the MVs evolve in different types of DVs that remains to be elucidated, but also whether the cells that form intraluminal bridges proceed from locally activated ECs or whether they are derived from bone marrow precursors or from resident macrophages.Given that the formation of homodimers by Gal-1 and Gal-8 and pentamers by Gal-3 to generate gal-glycan lattices at the cell surface and in the extracellular space has been shown, it is possible that in PG tissue Gal-1, -3 and -8, through their binding partners, form a supramolecular structure at the surface of ECs and plump ECs, macrophages and in the extracellular space that might be mediating the transdifferentiation of macrophages into plump ECs and facilitating the migration and incorporation of these cells into the pre-existing venules, thus contributing to the formation of MVs and DVs.
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Affiliation(s)
- Enrique Arciniegas
- Institute of Biomedicine, Central University of Venezuela, Caracas, Venezuela
| | - Luz Marina Carrillo
- Institute of Biomedicine, Central University of Venezuela, Caracas, Venezuela
- Autonomus Service Institute of Biomedicine, Caracas, Venezuela
| | - Héctor Rojas
- Institute of Immunology, Central University of Venezuela, Caracas, Venezuela
| | - Jacinto Pineda
- Institute of Anatomy and Pathology, Central University of Venezuela, Caracas, Venezuela
| | - Richard Ramírez
- Autonomus Service Institute of Biomedicine, Caracas, Venezuela
| | - Oscar Reyes
- Autonomus Service Institute of Biomedicine, Caracas, Venezuela
| | - Marina Chopite
- Autonomus Service Institute of Biomedicine, Caracas, Venezuela
| | - Albani Rocheta
- Autonomus Service Institute of Biomedicine, Caracas, Venezuela
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Yang S, Jiang X, Xiao X, Niu C, Xu Y, Huang Z, Kang YJ, Feng L. Controlling the Poly(ε-caprolactone) Degradation to Maintain the Stemness and Function of Adipose-Derived Mesenchymal Stem Cells in Vascular Regeneration Application. Macromol Biosci 2020; 21:e2000226. [PMID: 33094556 DOI: 10.1002/mabi.202000226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 09/11/2020] [Accepted: 09/29/2020] [Indexed: 02/05/2023]
Abstract
Biodegradable poly(ε-caprolactone) (PCL) scaffolds with adipose-derived mesenchymal stem cells (ADSCs) have been used in vascular regeneration studies. An evaluation method of the effect of PCL degradation products (DP) on the viability, stemness, and differentiation capacities of ADSCs is established. ADSCs are cultured in medium containing different concentrations of PCL DP before evaluating the effect of PCL DP on the cell apoptosis and proliferation, cell surface antigens, adipogenic and osteogenic differentiation capacities, and capacities to differentiate into endothelial cells and smooth muscle cells. The results demonstrate that PCL DP exceed 0.05 mg mL-1 may change the stemness and differentiation capacities of ADSCs. Therefore, to control the proper concentration of PCL DP is essential for ADSCs in vascular regeneration application.
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Affiliation(s)
- Shaojie Yang
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Xia Jiang
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Xiong Xiao
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Chuan Niu
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Yue Xu
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Ziwei Huang
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Y James Kang
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
| | - Li Feng
- S. Yang, Dr. X. Jiang, X. Xiao, C. Niu, Y. Xu, Z. Huang, Prof. Y. J. Kang, Prof. L. Feng, Regenerative Medicine Research Center, Sichuan University West China Hospital, No. 4 Keyuan Road, Wuhou District, Chengdu, 610041, China
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Reid JA, McDonald A, Callanan A. Modulating electrospun polycaprolactone scaffold morphology and composition to alter endothelial cell proliferation and angiogenic gene response. PLoS One 2020; 15:e0240332. [PMID: 33031435 PMCID: PMC7544109 DOI: 10.1371/journal.pone.0240332] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Accepted: 09/23/2020] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to look at how the composition and morphology of polymer scaffolds could be altered to create an optimized environment for endothelial cells. Four polycaprolactone (PCL) scaffolds were electrospun with increasing fibre diameters ranging from 1.64 μm to 4.83 μm. The scaffolds were seeded with human umbilical vein endothelial cells (HUVEC) and cultured for 12 days. PCL scaffolds were then electrospun incorporating decellularized bovine aorta ECM and cultured in a hypoxic environment. We noted deeper cell infiltration on the largest fibre diameter compared to the other three scaffolds which resulted in an increase in the gene expression of CD31; a key angiogenic marker. Increased cell viability and cell proliferation were also noted on the largest fibre. Furthermore, we noted that the incorporation of extracellular matrix (ECM) had minimal effect on cell viability, both in normoxic and hypoxic culture conditions. Our results showed that these environments had limited influences on hypoxic gene expression. Interestingly, the major findings from this study was the production of excretory ECM components as shown in the scanning electron microscopy (SEM) images. The results from this study suggest that fibre diameter had a bigger impact on the seeded HUVECs than the incorporation of ECM or the culture conditions. The largest fibre dimeter (4.83 μm) is more suitable for seeding of HUVECs.
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Affiliation(s)
- James Alexander Reid
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, United Kingdom
| | - Alison McDonald
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, United Kingdom
| | - Anthony Callanan
- Institute for Bioengineering, School of Engineering, The University of Edinburgh, Edinburgh, United Kingdom
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Öztel Z, Gazan S, Balcan E. Tunicamycin induced endoplasmic reticulum stress in the small intestine. Biotech Histochem 2020; 96:507-519. [PMID: 32962446 DOI: 10.1080/10520295.2020.1823481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Because the small intestine is exposed to variety of foreign substances, it participates in host immune response. We investigated whether the expression levels of intestinal MAdCAM-1, PECAM-1 (CD31) and CAV-1 are affected by endoplasmic reticulum (ER) stress following brief treatment with tunicamycin (TN). We administered a single dose of TN intraperitoneally. Twenty-four hours later, MAdCAM-1, PECAM-1 and CAV-1 expression levels in Peyer's patches and villi were examined using immunohistochemistry (IHC), immunofluorescence (IF) and western blotting. Immunostaining of MAdCAM-1 and CAV-1 in control and TN treated Peyer's patches and villi exhibited similar staining patterns. The immunoreactivity of PECAM-1 was similar for the control and TN treated Payer's patches, whereas staining was decreased significantly in TN treated villi. Our findings suggest that short term TN treatment did not affect leukocyte movement to lymphoid compartments of the small intestine, but it altered villus architecture due to decreased PECAM-1 expression.
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Affiliation(s)
- Zübeyde Öztel
- Department of Biology, Manisa Celal Bayar University, Manisa, Turkey
| | - Sibel Gazan
- Department of Biology, Manisa Celal Bayar University, Manisa, Turkey
| | - Erdal Balcan
- Department of Biology, Manisa Celal Bayar University, Manisa, Turkey
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Platelets Boost Recruitment of CD133 + Bone Marrow Stem Cells to Endothelium and the Rodent Liver-The Role of P-Selectin/PSGL-1 Interactions. Int J Mol Sci 2020; 21:ijms21176431. [PMID: 32899390 PMCID: PMC7504029 DOI: 10.3390/ijms21176431] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Revised: 08/28/2020] [Accepted: 08/31/2020] [Indexed: 02/06/2023] Open
Abstract
We previously demonstrated that clinical administration of mobilized CD133+ bone marrow stem cells (BMSC) accelerates hepatic regeneration. Here, we investigated the potential of platelets to modulate CD133+BMSC homing to hepatic endothelial cells and sequestration to warm ischemic livers. Modulatory effects of platelets on the adhesion of CD133+BMSC to human and mouse liver-sinusoidal- and micro- endothelial cells (EC) respectively were evaluated in in vitro co-culture systems. CD133+BMSC adhesion to all types of EC were increased in the presence of platelets under shear stress. This platelet effect was mostly diminished by antagonization of P-selectin and its ligand P-Selectin-Glyco-Ligand-1 (PSGL-1). Inhibition of PECAM-1 as well as SDF-1 receptor CXCR4 had no such effect. In a model of the isolated reperfused rat liver subsequent to warm ischemia, the co-infusion of platelets augmented CD133+BMSC homing to the injured liver with heightened transmigration towards the extra sinusoidal space when compared to perfusion conditions without platelets. Extravascular co-localization of CD133+BMSC with hepatocytes was confirmed by confocal microscopy. We demonstrated an enhancing effect of platelets on CD133+BMSC homing to and transmigrating along hepatic EC putatively depending on PSGL-1 and P-selectin. Our insights suggest a new mechanism of platelets to augment stem cell dependent hepatic repair.
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Reduced Mrp2 surface availability as PI3Kγ-mediated hepatocytic dysfunction reflecting a hallmark of cholestasis in sepsis. Sci Rep 2020; 10:13110. [PMID: 32753644 PMCID: PMC7403153 DOI: 10.1038/s41598-020-69901-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Accepted: 06/30/2020] [Indexed: 12/14/2022] Open
Abstract
Sepsis-associated liver dysfunction manifesting as cholestasis is common during multiple organ failure. Three hepatocytic dysfunctions are considered as major hallmarks of cholestasis in sepsis: impairments of microvilli covering canalicular membranes, disruptions of tight junctions sealing bile-collecting canaliculae and disruptions of Mrp2-mediated hepatobiliary transport. PI3Kγ loss-of-function was suggested as beneficial in early sepsis. Yet, the PI3Kγ-regulated cellular processes in hepatocytes remained largely unclear. We analysed all three sepsis hallmarks for responsiveness to massive PI3K/Akt signalling and PI3Kγ loss-of-function, respectively. Surprisingly, neither microvilli nor tight junctions were strongly modulated, as shown by electron microscopical studies of mouse liver samples. Instead, quantitative electron microscopy proved that solely Mrp2 surface availability, i.e. the third hallmark, responded strongly to PI3K/Akt signalling. Mrp2 plasma membrane levels were massively reduced upon PI3K/Akt signalling. Importantly, Mrp2 levels at the plasma membrane of PI3Kγ KO hepatocytes remained unaffected upon PI3K/Akt signalling stimulation. The effect explicitly relied on PI3Kγ's enzymatic ability, as shown by PI3Kγ kinase-dead mice. Keeping the surface availability of the biliary transporter Mrp2 therefore is a cell biological process that may underlie the observation that PI3Kγ loss-of-function protects from hepatic excretory dysfunction during early sepsis and Mrp2 should thus take center stage in pharmacological interventions.
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Pandey E, Nour AS, Harris EN. Prominent Receptors of Liver Sinusoidal Endothelial Cells in Liver Homeostasis and Disease. Front Physiol 2020; 11:873. [PMID: 32848838 PMCID: PMC7396565 DOI: 10.3389/fphys.2020.00873] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022] Open
Abstract
Liver sinusoidal endothelial cells (LSECs) are the most abundant non-parenchymal cells lining the sinusoidal capillaries of the hepatic system. LSECs are characterized with numerous fenestrae and lack basement membrane as well as a diaphragm. These unique morphological characteristics of LSECs makes them the most permeable endothelial cells of the mammalian vasculature and aid in regulating flow of macromolecules and small lipid-based structures between sinusoidal blood and parenchymal cells. LSECs have a very high endocytic capacity aided by scavenger receptors (SR), such as SR-A, SR-B (SR-B1 and CD-36), SR-E (Lox-1 and mannose receptors), and SR-H (Stabilins). Other high-affinity receptors for mediating endocytosis include the FcγRIIb, which assist in the antibody-mediated removal of immune complexes. Complemented with intense lysosomal activity, LSECs play a vital role in the uptake and degradation of many blood borne waste macromolecules and small (<280 nm) colloids. Currently, seven Toll-like receptors have been investigated in LSECs, which are involved in the recognition and clearance of pathogen-associated molecular pattern (PAMPs) as well as damage associated molecular pattern (DAMP). Along with other SRs, LSECs play an essential role in maintaining lipid homeostasis with the low-density lipoprotein receptor-related protein-1 (LRP-1), in juxtaposition with hepatocytes. LSECs co-express two surface lectins called L-Specific Intercellular adhesion molecule-3 Grabbing Non-integrin Receptor (L-SIGN) and liver sinusoidal endothelial cell lectin (LSECtin). LSECs also express several adhesion molecules which are involved in the recruitment of leukocytes at the site of inflammation. Here, we review these cell surface receptors as well as other components expressed by LSECs and their functions in the maintenance of liver homeostasis. We further discuss receptor expression and activity and dysregulation associated with the initiation and progression of many liver diseases, such as hepatocellular carcinoma, liver fibrosis, and cirrhosis, alcoholic and non-alcoholic fatty liver diseases and pseudocapillarization with aging.
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Affiliation(s)
- Ekta Pandey
- Department of Biochemistry, Universityof Nebraska, Lincoln, NE, United States
| | - Aiah S Nour
- Department of Biochemistry, Universityof Nebraska, Lincoln, NE, United States
| | - Edward N Harris
- Department of Biochemistry, Universityof Nebraska, Lincoln, NE, United States
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Wright WS, Eshaq RS, Lee M, Kaur G, Harris NR. Retinal Physiology and Circulation: Effect of Diabetes. Compr Physiol 2020; 10:933-974. [PMID: 32941691 PMCID: PMC10088460 DOI: 10.1002/cphy.c190021] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
In this article, we present a discussion of diabetes and its complications, including the macrovascular and microvascular effects, with the latter of consequence to the retina. We will discuss the anatomy and physiology of the retina, including aspects of metabolism and mechanisms of oxygenation, with the latter accomplished via a combination of the retinal and choroidal blood circulations. Both of these vasculatures are altered in diabetes, with the retinal circulation intimately involved in the pathology of diabetic retinopathy. The later stages of diabetic retinopathy involve poorly controlled angiogenesis that is of great concern, but in our discussion, we will focus more on several alterations in the retinal circulation occurring earlier in the progression of disease, including reductions in blood flow and a possible redistribution of perfusion that may leave some areas of the retina ischemic and hypoxic. Finally, we include in this article a more recent area of investigation regarding the diabetic retinal vasculature, that is, the alterations to the endothelial surface layer that normally plays a vital role in maintaining physiological functions. © 2020 American Physiological Society. Compr Physiol 10:933-974, 2020.
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Affiliation(s)
- William S Wright
- Department of Biomedical Sciences, University of South Carolina School of Medicine Greenville, Greenville, South Carolina, USA
| | - Randa S Eshaq
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, Louisiana, USA
| | - Minsup Lee
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, Louisiana, USA
| | - Gaganpreet Kaur
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, Louisiana, USA
| | - Norman R Harris
- Department of Molecular and Cellular Physiology, Louisiana State University Health Shreveport, Shreveport, Louisiana, USA
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Ankamreddy H, Koo H, Lee YJ, Bok J. CXCL12 is required for stirrup-shaped stapes formation during mammalian middle ear development. Dev Dyn 2020; 249:1117-1126. [PMID: 32319178 DOI: 10.1002/dvdy.180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 04/17/2020] [Accepted: 04/17/2020] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The mammalian middle ear comprises a chain of three ossicles-the malleus, incus, and stapes-each of which has a unique morphology for efficiently transmitting sound information. In particular, the stapes, which is attached to the inner ear, is stirrup-shaped with a head and base connected by two crural arches, forming the stapedial foramen, through which the stapedial artery passes. However, how the stapes acquires this critical stirrup shape for association with the stapedial artery during development is not clear. RESULTS C-X-C motif chemokine ligand 12 (CXCL12) is a chemoattractant essential for cellular movement and angiogenesis. In Cxcl12 -/- embryos, migration of neural crest cells into the prospective middle ear regions and their mesenchymal condensation to form the three ossicles proceed normally in correct alignment with each other and the inner ear. However, in the absence of CXCL12, the stapes loses its stirrup shape and instead exhibits a columnar shape lacking the crural arches and central hole. In addition, although the stapedial artery initially forms during early mesenchymal condensation of the stapes, it degenerates without CXCL12 function. CONCLUSION CXCL12 plays an essential role in establishing the stirrup-shaped architecture of the stapes, possibly by maintaining the stapedial foramen and stapedial artery throughout development.
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Affiliation(s)
- Harinarayana Ankamreddy
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea.,BK21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Heiyeun Koo
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea.,BK21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea
| | - Young Jae Lee
- Lee Gil Ya Cancer and Diabetes Institute, Gachon University, Incheon, South Korea
| | - Jinwoong Bok
- Department of Anatomy, Yonsei University College of Medicine, Seoul, South Korea.,BK21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, South Korea.,Department of Otorhinolaryngology, Yonsei University College of Medicine, Seoul, South Korea
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Xi Y, Ge J, Wang M, Chen M, Niu W, Cheng W, Xue Y, Lin C, Lei B. Bioactive Anti-inflammatory, Antibacterial, Antioxidative Silicon-Based Nanofibrous Dressing Enables Cutaneous Tumor Photothermo-Chemo Therapy and Infection-Induced Wound Healing. ACS NANO 2020; 14:2904-2916. [PMID: 32031782 DOI: 10.1021/acsnano.9b07173] [Citation(s) in RCA: 179] [Impact Index Per Article: 44.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Traditional skin tumor surgery and chronic bacterial-infection-induced wound healing/skin regeneration is still a challenge. The ideal strategy should eliminate the tumor, enhance wound healing/skin formation, and be anti-infection. Herein, we designed a multifunctional elastomeric poly(l-lactic acid)-poly(citrate siloxane)-curcumin@polydopamine hybrid nanofibrous scaffold (denoted as PPCP matrix) for tumor-infection therapy and infection-induced wound healing. The PPCP matrix showed intrinsically multifunctional properties including antioxidative, anti-inflammatory, photothermal, antibacterial, anticancer, and angiogenesis bioactivities. The polydopamine/curcumin presented an excellent near-infrared photothermal/cancer cell toxicity capacity, respectively, which supported PPCP for synergetic skin tumor therapy and antibacterial properties in vitro/in vivo. Additionally, the PPCP nanofibrous matrix significantly promotes the adhesion and proliferation of normal skin cells and accelerates the cutaneous wound healing in normal mice and bacterial-infected mice by enhancing the early angiogenesis. The PPCP nanofibrous matrix with multifunctional bioactivities provides a competitive strategy for skin tumor and bacterial-infection-induced wound healing.
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Affiliation(s)
- Yuewei Xi
- National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710000, China
| | - Juan Ge
- National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710000, China
| | - Min Wang
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Mi Chen
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wen Niu
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Wei Cheng
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yumeng Xue
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
- Department of Bioengineering, Department of Chemical and Biomolecular Engineering, Henry Samueli School of Engineering and Applied Sciences, University of California at Los Angeles, Los Angeles, California 90095, United States
| | - Cai Lin
- Department of Burn, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Bo Lei
- National and Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710000, China
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, College of Stomatology, Xi'an Jiaotong University, Xi'an 710049, China
- Frontier Institute of Science and Technology, Xi'an Jiaotong University, Xi'an 710049, China
- Instrumental Analysis Center, Xi'an Jiaotong University, Xi'an 710049, China
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Duong CN, Nottebaum AF, Butz S, Volkery S, Zeuschner D, Stehling M, Vestweber D. Interference With ESAM (Endothelial Cell-Selective Adhesion Molecule) Plus Vascular Endothelial-Cadherin Causes Immediate Lethality and Lung-Specific Blood Coagulation. Arterioscler Thromb Vasc Biol 2020; 40:378-393. [DOI: 10.1161/atvbaha.119.313545] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Objective:
Vascular endothelial (VE)-cadherin is of dominant importance for the formation and stability of endothelial junctions, yet induced gene inactivation enhances vascular permeability in the lung but does not cause junction rupture. This study aims at identifying the junctional adhesion molecule, which is responsible for preventing endothelial junction rupture in the pulmonary vasculature in the absence of VE-cadherin.
Approach and Results:
We have compared the relevance of ESAM (endothelial cell-selective adhesion molecule), JAM (junctional adhesion molecule)-A, PECAM (platelet endothelial cell adhesion molecule)-1, and VE-cadherin for vascular barrier integrity in various mouse tissues. Gene inactivation of ESAM enhanced vascular permeability in the lung but not in the heart, skin, and brain. In contrast, deletion of JAM-A or PECAM-1 did not affect barrier integrity in any of these organs. Blocking VE-cadherin with antibodies caused lethality in ESAM
−/−
mice within 30 minutes but had no such effect in JAM-A
−/−
, PECAM-1
−/−
or wild-type mice. Likewise, induced gene inactivation of VE-cadherin caused rapid lethality only in the absence of ESAM. Ultrastructural analysis revealed that only combined interference with VE-cadherin and ESAM disrupted endothelial junctions and caused massive blood coagulation in the lung. Mechanistically, we could exclude a role of platelet ESAM in coagulation, changes in the expression of other junctional proteins or a contribution of cytoplasmic signaling domains of ESAM.
Conclusions:
Despite well-documented roles of JAM-A and PECAM-1 for the regulation of endothelial junctions, only for ESAM, we detected an essential role for endothelial barrier integrity in a tissue-specific way. In addition, we found that it is ESAM which prevents endothelial junction rupture in the lung when VE-cadherin is absent.
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Affiliation(s)
- Cao Nguyen Duong
- From the Department of Vascular Cell Biology (C.N.D., A.F.N., S.B., S.V., D.V.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Astrid F. Nottebaum
- From the Department of Vascular Cell Biology (C.N.D., A.F.N., S.B., S.V., D.V.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Stefan Butz
- From the Department of Vascular Cell Biology (C.N.D., A.F.N., S.B., S.V., D.V.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Stefan Volkery
- From the Department of Vascular Cell Biology (C.N.D., A.F.N., S.B., S.V., D.V.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Dagmar Zeuschner
- Electron Microscopy and Flow Cytometry Unit (D.Z., M.S.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Martin Stehling
- Electron Microscopy and Flow Cytometry Unit (D.Z., M.S.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
| | - Dietmar Vestweber
- From the Department of Vascular Cell Biology (C.N.D., A.F.N., S.B., S.V., D.V.), Max Planck Institute for Molecular Biomedicine, Münster, Germany
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Use of Human Umbilical Vein Endothelial Cells (HUVEC) as a Model to Study Cardiovascular Disease: A Review. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10030938] [Citation(s) in RCA: 110] [Impact Index Per Article: 27.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Cardiovascular disease (CVD) is the leading cause of death worldwide, and extensive research has been performed to understand this disease better, using various experimental models. The endothelium plays a crucial role in the development of CVD, since it is an interface between bloodstream components, such as monocytes and platelets, and other arterial wall components. Human umbilical vein endothelial cell (HUVEC) isolation from umbilical cord was first described in 1973. To date, this model is still widely used because of the high HUVEC isolation success rate, and because HUVEC are an excellent model to study a broad array of diseases, including cardiovascular and metabolic diseases. We here review the history of HUVEC isolation, the HUVEC model over time, HUVEC culture characteristics and conditions, advantages and disadvantages of this model and finally, its applications in the area of cardiovascular diseases.
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Zhang JG, Zhou HM, Zhang X, Mu W, Hu JN, Liu GL, Li Q. Hypoxic induction of vasculogenic mimicry in hepatocellular carcinoma: role of HIF-1 α, RhoA/ROCK and Rac1/PAK signaling. BMC Cancer 2020; 20:32. [PMID: 31931758 PMCID: PMC6958789 DOI: 10.1186/s12885-019-6501-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Accepted: 12/26/2019] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Vasculogenic mimicry (VM), defined as a capability of aggressive tumor Cells to mimic embryonic vasculogenic networks, caused poor prognosis in hepatocellular carcinoma (HCC). Rho kinases (ROCK), p21-activated kinase (PAK), hypoxia or epithelial-mesenchymal transition (EMT) contributed to the VM potential. However, the details underlying these biological behaviors have not been completely elucidated. METHODS Kaplan-Meier analysis was conducted to predict relationship with hypoxia Inducible factor (HIF-1α), EMT related markers: Vimentin and patient prognosis. CD34/periodic acid-Schiff (PAS) double staining was examined to differentiate VM-positive (VM+) and VM-negative (VM-) samples. Cells were cultured under controlled hypoxic environments (1% O2) or normoxic conditions. The effect of hypoxia on RhoA/ROCK, Rac1/PAK and EMT were evaluated by real time-qPCR and western blot. HIF-1α small interfering RNA (siRNA), overexpressed or short hairpin RNA (shRNA) of ROCK and kinase inhibitors were used to explore the effect of HIF-1α, RhoA/ROCK, Rac1/PAK and Vimentin on VM. RESULTS HIF-1α or Vimentin was upregulated in VM+ HCC tissues, compared to non-cancerous tissues (P < 0.01), and patients with high expression of HIF-1α or Vimentin had worse prognosis (P < 0.001). We showed hypoxia induced RhoA/ROCK and Rac1/PAK signaling transduction, and EMT could be repressed by HIF-1α siRNA. Notably, RhoA/ROCK or Rac1/PAK stabilized HIF-1α in hypoxia, whereas HIF-1α did not significantly altered RhoA/ROCK or Rac1/PAK signaling in hypoxia. Moreover, we found distinct roles of ROCK1, ROCK2 and PAK in regulating Vimentin phosphorylation. CONCLUSIONS RhoA/ROCK and Rac/PAK signaling played crucial roles in hypoxia-induced VM via Ser72 and Ser56 Vimentin phosphorylation in HCC.
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Affiliation(s)
- Ji-Gang Zhang
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China
| | - He-Ming Zhou
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China
| | - Xue Zhang
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China
| | - Wan Mu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China
| | - Juan-Ni Hu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China
| | - Gao-Lin Liu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China.
| | - Qin Li
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of medicine, No.100 Haining Road, Shanghai, 200080, People's Republic of China.
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50
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Arishe OO, Ebeigbe AB, Webb RC. Mechanotransduction and Uterine Blood Flow in Preeclampsia: The Role of Mechanosensing Piezo 1 Ion Channels. Am J Hypertens 2020; 33:1-9. [PMID: 31545339 PMCID: PMC7768673 DOI: 10.1093/ajh/hpz158] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/13/2019] [Accepted: 09/19/2019] [Indexed: 12/31/2022] Open
Abstract
There is a large increase in uterine arterial blood flow during normal pregnancy. Structural and cellular adjustments occur in the uterine vasculature during pregnancy to accommodate this increased blood flow through a complex adaptive process that is dependent on multiple coordinated and interactive influences and this process is known as "vascular remodeling." The etiology of preeclampsia involves aberrant placentation and vascular remodeling leading to reduced uteroplacental perfusion. The placental ischemia leads to development of hypertension and proteinuria in the mother, intrauterine growth restriction, and perinatal death in the fetus. However, the underlying source of the deficient vascular remodeling and the subsequent development of preeclampsia remain to be fully understood. Mechanoreceptors in the vascular system convert mechanical force (shear stress) to biochemical signals and feedback mechanisms. This review focuses on the Piezo 1 channel, a mechanosensitive channel that is sensitive to shear stress in the endothelium; it induces Ca2+ entry which is linked to endothelial nitric oxide synthase (eNOS) activation as the mechanoreceptor responsible for uterine vascular dilatation during pregnancy. Here we describe the downstream signaling pathways involved in this process and the possibility of a deficiency in expression of Piezo 1 in preeclampsia leading to the abnormal vascular dysfunction responsible for the pathophysiology of the disease. The Piezo 1 ion channel is expressed in the endothelium and vascular smooth muscle cells (VSMCs) of small-diameter arteries. It plays a role in the structural remodeling of arteries and is involved in mechanotransduction of hemodynamic shear stress by endothelial cells (ECs).
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Affiliation(s)
- Olufunke O Arishe
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
- Department of Physiology, College of Medical Sciences, University of Benin, Benin City, Nigeria
| | - Anthony B Ebeigbe
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
- Department of Physiology, College of Medical Sciences, University of Benin, Benin City, Nigeria
| | - R Clinton Webb
- Department of Physiology, Medical College of Georgia at Augusta University, Augusta, Georgia, USA
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