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Wang W, Zhang L, O'Dell R, Yin Z, Yu D, Chen H, Liu J, Wang H. Microsphere-Enabled Modular Formation of Miniaturized In Vitro Breast Cancer Models. Small 2024; 20:e2307365. [PMID: 37990372 PMCID: PMC11045325 DOI: 10.1002/smll.202307365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Indexed: 11/23/2023]
Abstract
In search of effective therapeutics for breast cancers, establishing physiologically relevant in vitro models is of great benefit to facilitate the clinical translation. Despite extensive progresses, it remains to develop the tumor models maximally recapturing the key pathophysiological attributes of their native counterparts. Therefore, the current study aimed to develop a microsphere-enabled modular approach toward the formation of in vitro breast tumor models with the capability of incorporating various selected cells while retaining spatial organization. Poly (lactic-co-glycolic acid) microspheres (150-200 mm) with tailorable pore size and surface topography are fabricated and used as carriers to respectively lade with breast tumor-associated cells. Culture of cell-laden microspheres assembled within a customized microfluidic chamber allowed to form 3D tumor models with spatially controlled cell distribution. The introduction of endothelial cell-laden microspheres into cancer-cell laden microspheres at different ratios would induce angiogenesis within the culture to yield vascularized tumor. Evaluation of anticancer drugs such as doxorubicin and Cediranib on the tumor models do demonstrate corresponding physiological responses. Clearly, with the ability to modulate microsphere morphology, cell composition and spatial distribution, microsphere-enabled 3D tumor tissue formation offers a high flexibility to satisfy the needs for pathophysiological study, anticancer drug screening or design of personalized treatment.
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Affiliation(s)
- Weiwei Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Li Zhang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
- Department of Respiratory Medicine, Zhongnan Hospital Wuhan University, Wuhan, Hubei, 361005, China
- Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, Hubei, 361005, China
- Wuhan Clinical Research Center of Minimally Invasive Treatment of Structural Heart Disease, Wuhan, Hubei, 361005, China
| | - Robert O'Dell
- Department of Physics, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Zhuozhuo Yin
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
| | - Dou Yu
- Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Hexin Chen
- Department of Biological Sciences, University of South Carolina, Columbia, SC, 29205, USA
| | - JinPing Liu
- Department of Respiratory Medicine, Zhongnan Hospital Wuhan University, Wuhan, Hubei, 361005, China
- Hubei Provincial Engineering Research Center of Minimally Invasive Cardiovascular Surgery, Wuhan, Hubei, 361005, China
- Wuhan Clinical Research Center of Minimally Invasive Treatment of Structural Heart Disease, Wuhan, Hubei, 361005, China
| | - Hongjun Wang
- Department of Biomedical Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
- Semcer Center for Healthcare Innovation, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
- Department of Chemistry and Chemical Biology, Stevens Institute of Technology, Hoboken, NJ, 07030, USA
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Nan W, He Y, Shen S, Wu M, Wang S, Zhang Y. BMP4 inhibits corneal neovascularization by interfering with tip cells in angiogenesis. Exp Eye Res 2023; 237:109680. [PMID: 37858608 DOI: 10.1016/j.exer.2023.109680] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 09/26/2023] [Accepted: 10/16/2023] [Indexed: 10/21/2023]
Abstract
Corneal neovascularization (CNV) can lead to impaired corneal transparency, resulting in vision loss or blindness. The primary pathological mechanism underlying CNV is an imbalance between pro-angiogenic and anti-angiogenic factors, with inflammation playing a crucial role. Notably, a vascular endothelial growth factor(VEGF)-A gradient triggers the selection of single endothelial cells(ECs) into primary tip cells that guide sprouting, while a dynamic balance between tip and stalk cells maintains a specific ratio to promote CNV. Despite the central importance of tip-stalk cell selection and shuffling, the underlying mechanisms remain poorly understood. In this study, we examined the effects of bone morphogenetic protein 4 (BMP4) on VEGF-A-induced lumen formation in human umbilical vein endothelial cells (HUVECs) and CD34-stained tip cell formation. In vivo, BMP4 inhibited CNV caused by corneal sutures. This process was achieved by BMP4 decreasing the protein expression of VEGF-A and VEGFR2 in corneal tissue after corneal suture injury. By observing the ultrastructure of the cornea, BMP4 inhibited the sprouting of tip cells and brought forward the appearance of intussusception. Meanwhile, BMP4 attenuated the inflammatory response by inhibiting neutrophil extracellular traps (NETs)formation through the NADPH oxidase-2(NOX-2)pathway. Our results indicate that BMP4 inhibits the formation of tip cells by reducing the generation of NETs, disrupting the dynamic balance of tip and stalk cells and thereby inhibiting CNV, suggesting that BMP4 may be a potential therapeutic target for CNV.
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Affiliation(s)
- Weijin Nan
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China; Corneal Refraction Department, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Yuxi He
- Corneal Refraction Department, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Sitong Shen
- Corneal Refraction Department, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Meiliang Wu
- Corneal Refraction Department, The Second Hospital of Jilin University, Changchun, 130000, China
| | - Shurong Wang
- Department of Ophthalmology, China-Japan Union Hospital of Jilin University, Changchun, 130000, China
| | - Yan Zhang
- Department of Ophthalmology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, 200080, China; Corneal Refraction Department, The Second Hospital of Jilin University, Changchun, 130000, China.
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Sadikan MZ, Abdul Nasir NA, Lambuk L, Mohamud R, Reshidan NH, Low E, Singar SA, Mohmad Sabere AS, Iezhitsa I, Agarwal R. Diabetic retinopathy: a comprehensive update on in vivo, in vitro and ex vivo experimental models. BMC Ophthalmol 2023; 23:421. [PMID: 37858128 PMCID: PMC10588156 DOI: 10.1186/s12886-023-03155-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 09/26/2023] [Indexed: 10/21/2023] Open
Abstract
Diabetic retinopathy (DR), one of the leading causes of visual impairment and blindness worldwide, is one of the major microvascular complications in diabetes mellitus (DM). Globally, DR prevalence among DM patients is 25%, and 6% have vision-threatening problems among them. With the higher incidence of DM globally, more DR cases are expected to be seen in the future. In order to comprehend the pathophysiological mechanism of DR in humans and discover potential novel substances for the treatment of DR, investigations are typically conducted using various experimental models. Among the experimental models, in vivo models have contributed significantly to understanding DR pathogenesis. There are several types of in vivo models for DR research, which include chemical-induced, surgical-induced, diet-induced, and genetic models. Similarly, for the in vitro models, there are several cell types that are utilised in DR research, such as retinal endothelial cells, Müller cells, and glial cells. With the advancement of DR research, it is essential to have a comprehensive update on the various experimental models utilised to mimic DR environment. This review provides the update on the in vitro, in vivo, and ex vivo models used in DR research, focusing on their features, advantages, and limitations.
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Affiliation(s)
- Muhammad Zulfiqah Sadikan
- Department of Pharmacology, Faculty of Medicine, Manipal University College Malaysia (MUCM), Bukit Baru, 75150, Melaka, Malaysia
| | - Nurul Alimah Abdul Nasir
- Centre for Neuroscience Research (NeuRon), Faculty of Medicine, Universiti Teknologi MARA, 47000, Sungai Buloh, Selangor, Malaysia.
| | - Lidawani Lambuk
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Rohimah Mohamud
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Nur Hidayah Reshidan
- School of Biology, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450, Shah Alam, Selangor, Malaysia
| | - Evon Low
- Ageing Biology Centre, Newcastle University, NE1 7RU, Newcastle upon Tyne, UK
| | - Saiful Anuar Singar
- Department of Nutrition and Integrative Physiology, College of Health and Human Sciences, Florida State University, 32306, Tallahassee, FL, USA
| | - Awis Sukarni Mohmad Sabere
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200, Kuantan, Pahang, Malaysia
| | - Igor Iezhitsa
- School of Medicine, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
- Department of Pharmacology and Bioinformatics, Volgograd State Medical University, Pavshikh Bortsov sq. 1, 400131 , Volgograd, Russian Federation
| | - Renu Agarwal
- School of Medicine, International Medical University, 57000, Bukit Jalil, Kuala Lumpur, Malaysia
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Abstract
The benign public perception of myopia (nearsightedness) as a visual inconvenience masks the severity of its sight-threatening consequences. Myopia is a significant risk factor for posterior pole conditions such as maculopathy, choroidal neovascularization and glaucoma, all of which have a vascular component. These associations strongly suggest that myopic eyes might experience vascular alterations prior to the development of complications. Myopic eyes are out of focus because they are larger in size, which in turn affects their overall structure and function, including those of the vascular beds. By reviewing the vascular changes that characterize myopia, this review aims to provide an understanding of the gross, cellular and molecular alterations identified at the structural and functional levels with the goal to provide an understanding of the latest evidence in the field of experimental and clinical myopia vascular research. From the evidence presented, we hypothesize that the interaction between excessive myopic eye growth and vascular alterations are tipping-points for the development of sight-threatening changes.
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El-waseif AG, Nader MA, Salem HA, Elshaer SL. Fasudil, a ROCK inhibitor, preserves limb integrity in a mouse model of unilateral critical limb ischemia: Possible interplay of inflammatory and angiogenic signaling pathways. Life Sci 2022; 309:121019. [DOI: 10.1016/j.lfs.2022.121019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/17/2022] [Accepted: 09/27/2022] [Indexed: 11/20/2022]
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Rojo Arias JE, Jászai J. Gene expression profile of the murine ischemic retina and its response to Aflibercept (VEGF-Trap). Sci Rep 2021; 11:15313. [PMID: 34321516 PMCID: PMC8319207 DOI: 10.1038/s41598-021-94500-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 07/05/2021] [Indexed: 02/07/2023] Open
Abstract
Ischemic retinal dystrophies are leading causes of acquired vision loss. Although the dysregulated expression of the hypoxia-responsive VEGF-A is a major driver of ischemic retinopathies, implication of additional VEGF-family members in their pathogenesis has led to the development of multivalent anti-angiogenic tools. Designed as a decoy receptor for all ligands of VEGFR1 and VEGFR2, Aflibercept is a potent anti-angiogenic agent. Notwithstanding, the molecular mechanisms mediating Aflibercept's efficacy remain only partially understood. Here, we used the oxygen-induced retinopathy (OIR) mouse as a model system of pathological retinal vascularization to investigate the transcriptional response of the murine retina to hypoxia and of the OIR retina to Aflibercept. While OIR severely impaired transcriptional changes normally ensuing during retinal development, analysis of gene expression patterns hinted at alterations in leukocyte recruitment during the recovery phase of the OIR protocol. Moreover, the levels of Angiopoietin-2, a major player in the progression of diabetic retinopathy, were elevated in OIR tissues and consistently downregulated by Aflibercept. Notably, GO term, KEGG pathway enrichment, and expression dynamics analyses revealed that, beyond regulating angiogenic processes, Aflibercept also modulated inflammation and supported synaptic transmission. Altogether, our findings delineate novel mechanisms potentially underlying Aflibercept's efficacy against ischemic retinopathies.
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Affiliation(s)
- Jesús Eduardo Rojo Arias
- grid.4488.00000 0001 2111 7257Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany ,grid.5335.00000000121885934Present Address: Wellcome-MRC Cambridge Stem Cell Institute, Jeffrey Cheah Biomedical Centre, Cambridge Biomedical Campus, University of Cambridge, Cambridge, UK
| | - József Jászai
- grid.4488.00000 0001 2111 7257Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
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Tian M, Dong J, Wang Z, Lu S, Geng F. The effects and mechanism of Kangfuxin on improving healing quality and preventing recurrence of gastric ulcer. Biomed Pharmacother 2021; 138:111513. [PMID: 33761454 DOI: 10.1016/j.biopha.2021.111513] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 02/24/2021] [Accepted: 03/11/2021] [Indexed: 02/06/2023] Open
Abstract
This study investigated the gastroprotective effects and possible mechanism of Kangfuxin (KFX), an ethanol extract of Periplaneta americana L. (Dictyoptera; Blattidae), on improving healing quality and preventing recurrence of gastric ulcer. The effects of KFX were investigated in patients treated with endoscopic submucosal dissection (ESD), gastric ulcer animal model, and rat gastric mucosal cells and fibroblasts. Moreover, the relationship between KFX and p38/NF-κB pathway were explored both in vivo and in vitro. In patients, KFX exhibited protective effects against gastric ulcers and resulted in a decrease in the CD3 expression. In vivo animal experiments confirmed that KFX accelerated ulcer healing by promoting neovascularization (increased CD34 expression), suppressing inflammation (decreased interleukin-1β (IL-1β), myeloperoxidase (MPO), tumor necrosis factor α (TNF-α), intercellular adhesion molecule-1 (ICAM-1), and IL-8 expression), and enhancing growth factor expression, including the epidermal growth factor receptor (EGFR) and hepatocyte growth factor (HGF). In vitro experiments demonstrated that treatment with 10% KFX rat serum decreased IL-1β, IL-1Ra, SIL-1RAP, TNF-α, and ICAM-1 expression in rat gastric mucosal cells or fibroblasts and increased IL-1R expression compared to that in the group treatment with 10% normal rat serum. Furthermore, KFX inhibited the activation of p38/NF-κB pathway both in vivo and in vitro. In conclusion, KFX treatment could effectively improve healing quality and prevent gastric ulcer recurrence, which might be attributed to neovascularization, suppressed inflammation, and enhanced growth factor expression. The p38/NF-κB pathway may be one of important mechanism to mediate the effects of KFX.
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Affiliation(s)
- Ming Tian
- Shanghai Burn Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Jiaoyun Dong
- Shanghai Burn Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Zhengting Wang
- Department of Gastroenterology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Shuliang Lu
- Shanghai Burn Institute, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China.
| | - Funeng Geng
- Sichuan Key Laboratory of Medical American Cockroach, Chengdu, Sichuan 610000, China.
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8
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Abstract
The neonatal mouse retinal vascularization model has been widely used in the vascular biology field to investigate mechanisms of angiogenesis and arterial-venous fate specification during blood vessel formation and maturation. Recent advances in next-generation sequencing can further elucidate mechanisms of blood vessel formation and remodeling in this, as well as other, vascular development models. However, an optimized method for isolating retinal endothelial cells that limits tissue digestion-induced cell damage is required for next-generation sequencing applications. In this study, we established a method for isolating neonatal retinal endothelial cells that optimizes cell viability and purity. The CD31+/CD45- endothelial cell population was fluorescence-activated cell sorting (FACS)-isolated from digested postnatal retinas, found to be highly enriched for endothelial cell gene expression, and exhibited no change in viability for 60 min post-FACS. Thus, this method for retinal endothelial cell isolation is compatible with next-generation sequencing applications. Combining this isolation method with next-generation sequencing will enable further delineation of mechanisms underlying vascular development and maturation.
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Affiliation(s)
- Nicholas W Chavkin
- Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA,
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, Virginia, USA,
- Department of Cardiology, University of Virginia School of Medicine, Charlottesville, Virginia, USA,
| | - Kenneth Walsh
- Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
- Department of Cardiology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Karen K Hirschi
- Cardiovascular Research Center, University of Virginia School of Medicine, Charlottesville, Virginia, USA
- Department of Cell Biology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
- Cardiovascular Research Center, Yale University School of Medicine, New Haven, Connecticut, USA
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Da J, Yang Y, Dong R, Shen Y, Zha Y. Therapeutic effect of 1,25(OH)2-VitaminD3 on fibrosis and angiogenesis of peritoneum induced by chlorhexidine. Biomed Pharmacother 2020; 129:110431. [PMID: 32585450 DOI: 10.1016/j.biopha.2020.110431] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/31/2020] [Accepted: 06/17/2020] [Indexed: 11/18/2022] Open
Abstract
The biological activity of vitamin D, which mediated by the vitamin D receptor, is widespread throughout the body. The present study aimed to define whether 1,25-dihydroxy vitamin D3 (1,25-(OH)2D3) can protect against the progression of peritoneum fibrosis (PF) through its impact on the expression of connective tissue growth factor (CTGF) and heat shock protein 47 (HSP47) in vivo and in vitro. The male Sprague-Dawley (SD) rats of PF were induced by daily intraperitoneally injection of chlorhexidine gluconate (CG) for 4 wks. PF Rats were also treated with calcitriol (i.p. 6 ng/100g*d) from initiation of the CG. In calcitriol rats, the ultrafiltration and the ratio of dialysate urea nitrogen to blood urea nitrogen were improved (P < 0.05), pathological changes and peritoneal thickness were milder than that of the PF group. Calcitriol ameliorated high glucose-induced HSP47 expression in peritoneal mesothelial cells via CTGF down-regulation both at the mRNA level and protein level. Furthermore, calcitriol prevented angiogenic mediators of fibrosis by reduced the expression of CD34 and vascular endothelial growth factor (VEGF). The present study demonstrated that 1,25-(OH)2D3 intervention had a partially protective effect on peritoneum fibrosis, which might inhibit CTGF/HSP47 and CD34/VEGF in the peritoneum tissues.
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Affiliation(s)
- Jingjing Da
- Guizhou University School of medicine, Guiyang, China; Renal Division, Department of Medicine, Guizhou Provincial People's Hospital, China; NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People's Hospital, Guiyang, China
| | - Yuqi Yang
- Renal Division, Department of Medicine, Guizhou Provincial People's Hospital, China; NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People's Hospital, Guiyang, China
| | - Rong Dong
- Guizhou University School of medicine, Guiyang, China; Renal Division, Department of Medicine, Guizhou Provincial People's Hospital, China; NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People's Hospital, Guiyang, China
| | - Yan Shen
- Renal Division, Department of Medicine, Guizhou Provincial People's Hospital, China; NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People's Hospital, Guiyang, China
| | - Yan Zha
- Renal Division, Department of Medicine, Guizhou Provincial People's Hospital, China; NHC Key Laboratory of Pulmonary Immunological Disease, Guizhou Provincial People's Hospital, Guiyang, China.
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Sun C, Su S, Zhu Y, Guo J, Guo S, Qian D, Yu L, Gu W, Duan JA. Salvia miltiorrhiza stem-leaf active components of salvianolic acids and flavonoids improved the hemorheological disorder and vascular endothelial function on microcirculation dysfunction rats. Phytother Res 2020; 34:1704-1720. [PMID: 32185841 DOI: 10.1002/ptr.6652] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/19/2020] [Accepted: 02/05/2020] [Indexed: 12/22/2022]
Abstract
Microcirculation, which connects macrocirculation and cells between arterioles and venules, plays a major role in the early onset of a variety of diseases. In this article, a dextran-induced microcirculation dysfunction (MCDF) model rats were adopted to evaluate the effects and mechanism of Salvia miltiorrhiza stem-leaf extracts based on plasma and urine metabonomics. The results showed the effective components of S. miltiorrhiza stem-leaf could significantly improve the hemorheology and coagulation index of MCDF rats and callback the expression of endothelin-1 (ET-1), induciblenitric oxide synthase (iNOS), vascularendothelial growth factor (VEGF), P-Selectin, thromboxane A2, 6-keto-PGF1α , TNF-α, and interleukin-1β to control group in MCDF rats. The decrease of microvessel density (MVD) in lung and thymus caused by MCDF was upgraded by Salvia miltiorrhiza stem-leaf. Based on the plasma and urine metabolic data, 20 potential biomarkers were identified. These biomarkers are mainly related to linoleic acid metabolism, glutathione metabolism, pantothenate and coenzyme A biosynthesis, pentose and glucuronate interconversions, pyruvate metabolism, glyoxylate and dicarboxylate metabolism, beta-alanine metabolism, and citrate cycle. The results indicated that the effective components of S. miltiorrhiza stem-leaf can improve the hemorheological disorder and vascular endothelial function. Meanwhile, the effective components can regulate potential biomarkers and correlated metabolic pathway, which can provide guidance for the research and development of new drugs for MCDF.
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Affiliation(s)
- Chengjing Sun
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Shulan Su
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Yue Zhu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jianming Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Sheng Guo
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Dawei Qian
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Li Yu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Wei Gu
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, and National and Local Collaborative Engineering Center of Chinese Medicinal Resources Industrialization and Formulae Innovative Medicine, and Key Laboratory of Chinese Medicinal Resources Recycling Utilization, State Administration of Traditional Chinese Medicine, Nanjing University of Chinese Medicine, Nanjing, China
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Zhang S, Kim JY, Xu S, Liu H, Yin M, Koroleva M, Guo J, Pei X, Jin ZG. Endothelial-specific YY1 governs sprouting angiogenesis through directly interacting with RBPJ. Proc Natl Acad Sci U S A 2020; 117:4792-801. [PMID: 32075915 DOI: 10.1073/pnas.1916198117] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Angiogenesis, the formation of new blood vessels, is tightly regulated by gene transcriptional programs. Yin Ying 1 (YY1) is a ubiquitously distributed transcription factor with diverse and complex biological functions; however, little is known about the cell-type-specific role of YY1 in vascular development and angiogenesis. Here we report that endothelial cell (EC)-specific YY1 deletion in mice led to embryonic lethality as a result of abnormal angiogenesis and vascular defects. Tamoxifen-inducible EC-specific YY1 knockout (YY1 iΔEC ) mice exhibited a scarcity of retinal sprouting angiogenesis with fewer endothelial tip cells. YY1 iΔEC mice also displayed severe impairment of retinal vessel maturation. In an ex vivo mouse aortic ring assay and a human EC culture system, YY1 depletion impaired endothelial sprouting and migration. Mechanistically, YY1 functions as a repressor protein of Notch signaling that controls EC tip-stalk fate determination. YY1 deficiency enhanced Notch-dependent gene expression and reduced tip cell formation. Specifically, YY1 bound to the N-terminal domain of RBPJ (recombination signal binding protein for Ig Kappa J region) and competed with the Notch coactivator MAML1 (mastermind-like protein 1) for binding to RBPJ, thereby impairing the NICD (intracellular domain of the Notch protein)/MAML1/RBPJ complex formation. Our study reveals an essential role of endothelial YY1 in controlling sprouting angiogenesis through directly interacting with RBPJ and forming a YY1-RBPJ nuclear repression complex.
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Zasada M, Madetko-Talowska A, Revhaug C, Rognlien AGW, Baumbusch LO, Książek T, Szewczyk K, Grabowska A, Bik-Multanowski M, Józef Pietrzyk J, Kwinta P, Saugstad OD. Short- and long-term impact of hyperoxia on the blood and retinal cells' transcriptome in a mouse model of oxygen-induced retinopathy. Pediatr Res 2020; 87:485-493. [PMID: 31578039 PMCID: PMC7033041 DOI: 10.1038/s41390-019-0598-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/04/2019] [Accepted: 09/06/2019] [Indexed: 01/25/2023]
Abstract
BACKGROUND We aimed to identify global blood and retinal gene expression patterns in murine oxygen-induced retinopathy (OIR), a common model of retinopathy of prematurity, which may allow better understanding of the pathogenesis of this severe ocular prematurity complication and identification of potential blood biomarkers. METHODS A total of 120 C57BL/6J mice were randomly divided into an OIR group, in which 7-day-old pups were maintained in 75% oxygen for 5 days, or a control group. RNA was extracted from the whole-blood mononuclear cells and retinal cells on days 12, 17, and 28. Gene expression in the RNA samples was evaluated with mouse gene expression microarrays. RESULTS There were 38, 1370 and 111 genes, the expression of which differed between the OIR and control retinas on days 12, 17, and 28, respectively. Gene expression in the blood mononuclear cells was significantly altered only on day 17. Deptor and Nol4 genes showed reduced expression both in the blood and retinal cells on day 17. CONCLUSION There are sustained marked changes in the global pattern of gene expression in the OIR mice retinas. An altered expression of Deptor and Nol4 genes in the blood mononuclear cells requires further investigation as they may indicate retinal neovascularization.
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Affiliation(s)
- Magdalena Zasada
- 0000 0001 2162 9631grid.5522.0Department of Paediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Anna Madetko-Talowska
- 0000 0001 2162 9631grid.5522.0Department of Medical Genetics, Jagiellonian University Medical College, Krakow, Poland
| | - Cecilie Revhaug
- 0000 0004 0389 8485grid.55325.34Department of Paediatric Research, Oslo University Hospital Rikshospitalet, Oslo, Norway ,0000 0004 1936 8921grid.5510.1University of Oslo, Oslo, Norway
| | - Anne Gro W. Rognlien
- 0000 0004 0389 8485grid.55325.34Department of Paediatric Research, Oslo University Hospital Rikshospitalet, Oslo, Norway ,0000 0004 1936 8921grid.5510.1University of Oslo, Oslo, Norway
| | - Lars O. Baumbusch
- 0000 0004 0389 8485grid.55325.34Department of Paediatric Research, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Teofila Książek
- 0000 0001 2162 9631grid.5522.0Department of Medical Genetics, Jagiellonian University Medical College, Krakow, Poland
| | - Katarzyna Szewczyk
- 0000 0001 2162 9631grid.5522.0Department of Medical Genetics, Jagiellonian University Medical College, Krakow, Poland
| | - Agnieszka Grabowska
- 0000 0001 2162 9631grid.5522.0Department of Medical Genetics, Jagiellonian University Medical College, Krakow, Poland
| | - Miroslaw Bik-Multanowski
- 0000 0001 2162 9631grid.5522.0Department of Medical Genetics, Jagiellonian University Medical College, Krakow, Poland
| | - Jacek Józef Pietrzyk
- 0000 0001 2162 9631grid.5522.0Department of Paediatrics, Jagiellonian University Medical College, Krakow, Poland
| | - Przemko Kwinta
- Department of Paediatrics, Jagiellonian University Medical College, Krakow, Poland.
| | - Ola Didrik Saugstad
- 0000 0004 0389 8485grid.55325.34Department of Paediatric Research, Oslo University Hospital Rikshospitalet, Oslo, Norway ,0000 0004 1936 8921grid.5510.1University of Oslo, Oslo, Norway
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Rojo Arias JE, Economopoulou M, Juárez López DA, Kurzbach A, Au Yeung KH, Englmaier V, Merdausl M, Schaarschmidt M, Ader M, Morawietz H, Funk RHW, Jászai J. VEGF-Trap is a potent modulator of vasoregenerative responses and protects dopaminergic amacrine network integrity in degenerative ischemic neovascular retinopathy. J Neurochem 2019; 153:390-412. [PMID: 31550048 DOI: 10.1111/jnc.14875] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 09/06/2019] [Accepted: 09/18/2019] [Indexed: 12/17/2022]
Abstract
Retinal hypoxia triggers abnormal vessel growth and microvascular hyper-permeability in ischemic retinopathies. Whereas vascular endothelial growth factor A (VEGF-A) inhibitors significantly hinder disease progression, their benefits to retinal neurons remain poorly understood. Similar to humans, oxygen-induced retinopathy (OIR) mice exhibit severe retinal microvascular malformations and profound neuronal dysfunction. OIR mice are thus a phenocopy of human retinopathy of prematurity, and a proxy for investigating advanced stages of proliferative diabetic retinopathy. Hence, the OIR model offers an excellent platform for assessing morpho-functional responses of the ischemic retina to anti-angiogenic therapies. Using this model, we investigated the retinal responses to VEGF-Trap (Aflibercept), an anti-angiogenic agent recognizing ligands of VEGF receptors 1 and 2 that possesses regulatory approval for the treatment of neovascular age-related macular degeneration, macular edema secondary to retinal vein occlusion and diabetic macular edema. Our results indicate that Aflibercept not only reduces the severity of retinal microvascular aberrations but also significantly improves neuroretinal function. Aflibercept administration significantly enhanced light-responsiveness, as revealed by electroretinographic examinations, and led to increased numbers of dopaminergic amacrine cells. Additionally, retinal transcriptional profiling revealed the concerted regulation of both angiogenic and neuronal targets, including transcripts encoding subunits of transmitter receptors relevant to amacrine cell function. Thus, Aflibercept represents a promising therapeutic alternative for the treatment of further progressive ischemic retinal neurovasculopathies beyond the set of disease conditions for which it has regulatory approval. Cover Image for this issue: doi: 10.1111/jnc.14743.
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Affiliation(s)
- Jesús E Rojo Arias
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - Matina Economopoulou
- Department of Ophthalmology, University Hospital Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - David A Juárez López
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - Anica Kurzbach
- Medizinische Klinik III, Universitätsklinikum Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany.,German Center for Diabetes Research (DZD e.V.), München-Neuherberg, Germany
| | - Kwan H Au Yeung
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - Vanessa Englmaier
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - Marie Merdausl
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - Martin Schaarschmidt
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - Marius Ader
- DFG-Center for Regenerative Therapies Dresden, Cluster of Excellence, Saxony, Germany
| | - Henning Morawietz
- Department of Medicine III, University Hospital Carl Gustav Carus, Division of Vascular Endothelium and Microcirculation, Technische Universität Dresden, Saxony, Germany
| | - Richard H W Funk
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
| | - József Jászai
- Department of Anatomy, Medical Faculty Carl Gustav Carus, Technische Universität Dresden, Saxony, Germany
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Kaufman ML, Park KU, Goodson NB, Chew S, Bersie S, Jones KL, Lamba DA, Brzezinski JA. Transcriptional profiling of murine retinas undergoing semi-synchronous cone photoreceptor differentiation. Dev Biol 2019; 453:155-167. [PMID: 31163126 DOI: 10.1016/j.ydbio.2019.05.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 05/24/2019] [Accepted: 05/29/2019] [Indexed: 12/12/2022]
Abstract
Uncovering the gene regulatory networks that control cone photoreceptor formation has been hindered because cones only make up a few percent of the retina and form asynchronously during development. To overcome these limitations, we used a γ-secretase inhibitor, DAPT, to disrupt Notch signaling and force proliferating retinal progenitor cells to rapidly adopt neuronal identity. We treated mouse retinal explants at the peak of cone genesis with DAPT and examined tissues at several time-points by histology and bulk RNA-sequencing. We found that this treatment caused supernumerary cone formation in an overwhelmingly synchronized fashion. This analysis revealed several categorical patterns of gene expression changes over time relative to DMSO treated control explants. These were placed in the temporal context of the activation of Otx2, a transcription factor that is expressed at the onset of photoreceptor development and that is required for both rod and cone formation. One group of interest had genes, such as Mybl1, Ascl1, Neurog2, and Olig2, that became upregulated by DAPT treatment before Otx2. Two other groups showed upregulated gene expression shortly after Otx2, either transiently or permanently. This included genes such as Mybl1, Meis2, and Podxl. Our data provide a developmental timeline of the gene expression events that underlie the initial steps of cone genesis and maturation. Applying this strategy to human retinal organoid cultures was also sufficient to induce a massive increase in cone genesis. Taken together, our results provide a temporal framework that can be used to elucidate the gene regulatory logic controlling cone photoreceptor development.
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Affiliation(s)
- Michael L Kaufman
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Ko Uoon Park
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Noah B Goodson
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Shereen Chew
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Ophthalmology, University of California, San Francisco, CA, USA
| | - Stephanie Bersie
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Kenneth L Jones
- Department of Pediatrics, University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | - Deepak A Lamba
- Eli and Edythe Broad Center of Regeneration Medicine and Stem Cell Research, Department of Ophthalmology, University of California, San Francisco, CA, USA
| | - Joseph A Brzezinski
- Department of Ophthalmology, University of Colorado Anschutz Medical Campus, Aurora, CO, USA.
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Jiang X, Du Y, Meng X, Zhang H, Zhao D, Zhao L, Chen J, Xiao S, Jiang H. Low-Dose Radiation Enhanced Inhibition of Breast Tumor Xenograft and Reduced Myocardial Injury Induced by Doxorubicin. Dose Response 2018; 16:1559325818813061. [PMID: 30622447 PMCID: PMC6302275 DOI: 10.1177/1559325818813061] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/14/2018] [Accepted: 10/23/2018] [Indexed: 12/17/2022] Open
Abstract
We reported that low-dose radiation (LDR) alleviated cardiotoxicity of doxorubicin (DOX) via inhibiting myocardial cell apoptosis and oxidative stress in vivo. Here, we tested whether LDR could enhance chemotherapeutic effect of DOX and alleviate myocardial injury induced by DOX by observing cell proliferation, apoptosis, and metastasis of heterotopic tumor in vivo. Mice implanted with 4T1 breast carcinoma cells were given 7.5 mg/kg DOX or 0.9% NaCl solution 72 hours after LDR (0 or 75 mGy). The histology of tumor tissue was observed by hematoxylin and eosin staining, the apoptosis was determined by terminal deoxynucleotidyl transferase–mediated dUTP nick-end labeling, and the expression of Ki67, Bcl-2, Bax, cleaved caspase3, matrix metalloproteinase 2 (MMP2), MMP9, and CD34 was detected by Western blot. Expression of Ki67 and CD34 was also detected by immunohistochemistry. Results showed that cell proliferation of the breast tumor and protein expression of the metastasis-related molecules were significantly reduced and the apoptosis of tumor cells was significantly increased in the LDR + DOX-treated tumor-bearing mice. Pretreatment with LDR significantly prevented DOX-induced cardiotoxicity likely through preventing DOX-induced mitochondrial Bcl2/Bax dyshomeostasis-induced caspase-3 cleavage-dependent apoptosis. These results suggested that LDR not only enhances DOX antitumor effect but also reduces DOX cardiotoxicity, which may potentially overcome the limitation for DOX clinical usage.
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Affiliation(s)
- Xin Jiang
- Department of Health Examination Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Yanwei Du
- Changchun University of Chinese Medicine, Changchun, Jilin, China
| | - Xinxin Meng
- Department of Health Examination Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hongmei Zhang
- Cardiac Intensive Care Unit, First People's Hospital of Shangqiu, Henan, China
| | - Di Zhao
- Department of Health Examination Center, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Lijing Zhao
- Department of Rehabilitation, School of Nursing, Jilin University, Changchun, Jilin, China
| | - Junyu Chen
- Department of Gynaecology and Obstetrics, The Second Hospital of Jilin University, Changchun, Jilin, China
| | - Shengxiang Xiao
- Emergency Department, The First Hospital of Jilin University, Changchun, Jilin, China
| | - Hongyu Jiang
- Department of Health Examination Center, The First Hospital of Jilin University, Changchun, Jilin, China
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16
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Fan J, Li H, Nie X, Yin Z, Zhao Y, Zhang X, Yuan S, Li Y, Chen C, Wang DW. MiR-665 aggravates heart failure via suppressing CD34-mediated coronary microvessel angiogenesis. Aging (Albany NY) 2018; 10:2459-2479. [PMID: 30243022 PMCID: PMC6188485 DOI: 10.18632/aging.101562] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 09/13/2018] [Indexed: 05/04/2023]
Abstract
BACKGROUND Heart failure (HF) is a major public health problem worldwide. The development of HF was related to coronary microvessel dysfunction. Whether miRNAs participate in HF by regulating coronary microvessel function remain unclear. METHODS The potential targets of miR-665 were predicted by rnahybrid software, then verified through anti-Ago2 co-immunoprecipitation, Western blotting and luciferase reporter assays. rAAV9 system was used to manipulate the expression of miR-665 in vivo. RESULTS Significant increase of miR-665 was observed in endothelial cells of human heart with heart failure. In vitro over-expression of miR-665 in endothelial cells resulted in decreased proliferation but enhanced apoptosis. rAAV-mediated delivery of miR-665 reduced coronary microvessel angiogenesis and cardiac microvessel density, then further impaired cardiac function in vivo. Furthermore, CD34 was confirmed as one of the miR-665 targets. Consistently, re-expression of CD34 attenuated miR-665-mediated damage effects in vitro and in vivo. We also found that Sp1 regulated miR-665 expression in endothelial cells. CONCLUSION Our findings demonstrated that miR-665 played an important role in heart failure via damaging coronary microvessel angiogenesis, and suggested that miRNA-based therapeutics may protect against coronary microvessel dysfunction and heart failure.
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Affiliation(s)
- Jiahui Fan
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Huaping Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Xiang Nie
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Zhongwei Yin
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Yanru Zhao
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Xudong Zhang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Shuai Yuan
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Yuying Li
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Chen Chen
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
| | - Dao Wen Wang
- Division of Cardiology, Department of Internal Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Hubei Key Laboratory of Genetics and Molecular Mechanisms of Cardiological Disorders, Wuhan 430030, China
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17
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Dallinga MG, Yetkin-Arik B, Kayser RP, Vogels IMC, Nowak-Sliwinska P, Griffioen AW, van Noorden CJF, Klaassen I, Schlingemann RO. IGF2 and IGF1R identified as novel tip cell genes in primary microvascular endothelial cell monolayers. Angiogenesis 2018; 21:823-836. [PMID: 29951828 PMCID: PMC6208896 DOI: 10.1007/s10456-018-9627-4] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Accepted: 06/18/2018] [Indexed: 12/12/2022]
Abstract
Tip cells, the leading cells of angiogenic sprouts, were identified in cultures of human umbilical vein endothelial cells (HUVECs) by using CD34 as a marker. Here, we show that tip cells are also present in primary human microvascular endothelial cells (hMVECs), a more relevant endothelial cell type for angiogenesis. By means of flow cytometry, immunocytochemistry, and qPCR, it is shown that endothelial cell cultures contain a dynamic population of CD34+ cells with many hallmarks of tip cells, including filopodia-like extensions, elevated mRNA levels of known tip cell genes, and responsiveness to stimulation with VEGF and inhibition by DLL4. Furthermore, we demonstrate that our in vitro tip cell model can be exploited to investigate cellular and molecular mechanisms in tip cells and to discover novel targets for anti-angiogenesis therapy in patients. Small interfering RNA (siRNA) was used to knockdown gene expression of the known tip cell genes angiopoietin 2 (ANGPT2) and tyrosine kinase with immunoglobulin-like and EGF-like domains 1 (TIE1), which resulted in similar effects on tip cells and sprouting as compared to inhibition of tip cells in vivo. Finally, we identified two novel tip cell-specific genes in CD34+ tip cells in vitro: insulin-like growth factor 2 (IGF2) and IGF-1-receptor (IGF1R). Knockdown of these genes resulted in a significant decrease in the fraction of tip cells and in the extent of sprouting in vitro and in vivo. In conclusion, this study shows that by using our in vitro tip cell model, two novel essential tip cells genes are identified.
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Affiliation(s)
- Marchien G Dallinga
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
| | - Bahar Yetkin-Arik
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
| | - Richelle P Kayser
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
| | - Ilse M C Vogels
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
| | | | - Arjan W Griffioen
- Angiogenesis Laboratory, Department of Medical Oncology, Amsterdam University Medical Centers, VU University Medical Center, Amsterdam, The Netherlands
| | - Cornelis J F van Noorden
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
- Department of Genetic Toxicology and Cancer Biology, National Institute of Biology, Ljubljana, Slovenia
| | - Ingeborg Klaassen
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands.
- Ocular Angiogenesis Group, Department of Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Meibergdreef 15, Room L3-154, 1105 AZ, Amsterdam, The Netherlands.
| | - Reinier O Schlingemann
- Ocular Angiogenesis Group, Departments of Ophthalmology and Medical Biology, Amsterdam University Medical Centers, Academic Medical Center, Amsterdam, The Netherlands
- Department of Ophthalmology, University of Lausanne, Jules-Gonin Eye Hospital, Fondation Asile des Aveugles, Lausanne, Switzerland
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Lo BC, Gold MJ, Scheer S, Hughes MR, Cait J, Debruin E, Chu FSF, Walker DC, Soliman H, Rossi FM, Blanchet MR, Perona-Wright G, Zaph C, McNagny KM. Loss of Vascular CD34 Results in Increased Sensitivity to Lung Injury. Am J Respir Cell Mol Biol 2017; 57:651-661. [PMID: 28683207 DOI: 10.1165/rcmb.2016-0386oc] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Survival during lung injury requires a coordinated program of damage limitation and rapid repair. CD34 is a cell surface sialomucin expressed by epithelial, vascular, and stromal cells that promotes cell adhesion, coordinates inflammatory cell recruitment, and drives angiogenesis. To test whether CD34 also orchestrates pulmonary damage and repair, we induced acute lung injury in wild-type (WT) and Cd34-/- mice by bleomycin administration. We found that Cd34-/- mice displayed severe weight loss and early mortality compared with WT controls. Despite equivalent early airway inflammation to WT mice, CD34-deficient animals developed interstitial edema and endothelial delamination, suggesting impaired endothelial function. Chimeric Cd34-/- mice reconstituted with WT hematopoietic cells exhibited early mortality compared with WT mice reconstituted with Cd34-/- cells, supporting an endothelial defect. CD34-deficient mice were also more sensitive to lung damage caused by influenza infection, showing greater weight loss and more extensive pulmonary remodeling. Together, our data suggest that CD34 plays an essential role in maintaining vascular integrity in the lung in response to chemical- and infection-induced tissue damage.
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Affiliation(s)
- Bernard C Lo
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Matthew J Gold
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Sebastian Scheer
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,2 Infection and Immunity Program, Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Michael R Hughes
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jessica Cait
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Erin Debruin
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Fanny S F Chu
- 3 Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - David C Walker
- 3 Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Hesham Soliman
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Fabio M Rossi
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
| | - Marie-Renée Blanchet
- 4 Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval, Quebec, Canada
| | - Georgia Perona-Wright
- 5 Department of Microbiology and Immunology, University of British Columbia, Vancouver, British Columbia, Canada; and.,6 Institute of Infection, Immunity and Inflammation, University of Glasgow, Glasgow, United Kingdom
| | - Colby Zaph
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada.,2 Infection and Immunity Program, Biomedicine Discovery Institute, Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Kelly M McNagny
- 1 The Biomedical Research Centre, University of British Columbia, Vancouver, British Columbia, Canada
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Moleiro AF, Conceição G, Leite-Moreira AF, Rocha-Sousa A. A Critical Analysis of the Available In Vitro and Ex Vivo Methods to Study Retinal Angiogenesis. J Ophthalmol 2017; 2017:3034953. [PMID: 28848677 DOI: 10.1155/2017/3034953] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 06/20/2017] [Accepted: 06/28/2017] [Indexed: 12/15/2022] Open
Abstract
Angiogenesis is a biological process with a central role in retinal diseases. The choice of the ideal method to study angiogenesis, particularly in the retina, remains a problem. Angiogenesis can be assessed through in vitro and in vivo studies. In spite of inherent limitations, in vitro studies are faster, easier to perform and quantify, and typically less expensive and allow the study of isolated angiogenesis steps. We performed a systematic review of PubMed searching for original articles that applied in vitro or ex vivo angiogenic retinal assays until May 2017, presenting the available assays and discussing their applicability, advantages, and disadvantages. Most of the studies evaluated migration, proliferation, and tube formation of endothelial cells in response to inhibitory or stimulatory compounds. Other aspects of angiogenesis were studied by assessing cell permeability, adhesion, or apoptosis, as well as by implementing organotypic models of the retina. Emphasis is placed on how the methods are applied and how they can contribute to retinal angiogenesis comprehension. We also discuss how to choose the best cell culture to implement these methods. When applied together, in vitro and ex vivo studies constitute a powerful tool to improve retinal angiogenesis knowledge. This review provides support for researchers to better select the most suitable protocols in this field.
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Siemerink MJ, Hughes MR, Dallinga MG, Gora T, Cait J, Vogels IMC, Yetkin-Arik B, Van Noorden CJF, Klaassen I, McNagny KM, Schlingemann RO. Correction: CD34 Promotes Pathological Epi-Retinal Neovascularization in a Mouse Model of Oxygen-Induced Retinopathy. PLoS One 2016; 11:e0169061. [PMID: 28002489 PMCID: PMC5176189 DOI: 10.1371/journal.pone.0169061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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Fan CY, Huang SY, Chou MY, Lyu PC. De novo protein sequencing, humanization and in vitro effects of an antihuman CD34 mouse monoclonal antibody. Biochem Biophys Rep 2016; 9:51-60. [PMID: 28955989 PMCID: PMC5614552 DOI: 10.1016/j.bbrep.2016.11.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2016] [Revised: 10/25/2016] [Accepted: 11/15/2016] [Indexed: 01/08/2023] Open
Abstract
QBEND/10 is a mouse immunoglobulin lambda-chain monoclonal antibody with strict specificity against human hematopoietic progenitor cell antigen CD34. Our in vitro study showed that QBEND/10 impairs the tube formation of human umbilical vein endothelial cells (HUVECs), suggesting that the antibody may be of potential benefit in blocking tumor angiogenesis. We provided a de novo protein sequencing method through tandem mass spectrometry to identify the amino acid sequences in the variable heavy and light chains of QBEND/10. To reduce immunogenicity for clinical applications, QBEND/10 was further humanized using the resurfacing approach. We demonstrate that the de novo sequenced and humanized QBEND/10 retains the biological functions of the parental mouse counterpart, including the binding kinetics to CD34 and blockage of the tube formation of the HUVECs.
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Affiliation(s)
- Chia-Yu Fan
- Institute of Bioinformatics and Structural Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan.,Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | | | - Min-Yuan Chou
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan
| | - Ping-Chiang Lyu
- Institute of Bioinformatics and Structural Biology & Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan
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